LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CAL LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CAL '868 LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALI i ' '- RY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA 9 RY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA i 9 JLjLy/^ fes a QJS RY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA . SMITHSONIAN INSTITUTION UNITED STATES NATIONAL MUSEUM Bulletin 92 BIBLIOGRAPHIC INDEX OF AMERICAN ORDOVICIAN AND SILURIAN FOSSILS VOLUME 1 BY RAY S. BASSLER Curator of Paleontology, United States National Museum WASHINGTON GOVERNMENT PRINTING OFFICE 1915 BULLETIN OF THE UNITED STATES NATIONAL MUSEUM. ISSUED NOVEMBER 1, 1915 ADVERTISEMENT. The scientific publications of the United States National Museum consist of two series the Proceedings and the Bulletins. The scientific publications of the United States National Museum are intended primarily as a medium for the publication of original, and usually brief, papers based on the collections of the National Museum, presenting newly acquired facts in zoology, geology, and anthropology, including descriptions of new forms of animals, and revisions of limited groups. One or two volumes are issued annu- ally and distributed to libraries and scientific organizations. A limited number of copies of each paper, in pamphlet form, is distrib- uted to specialists and others interested in the different subjects as soon as printed. The date of publication is printed on each paper, and these dates are also recorded in the tables of contents of the volumes. The Bulletins, the first of which was issued in 1875, consist of a series of separate publications comprising chiefly monographs of large zoological groups and other general systematic treatises (occa- sionally in several volumes), faunal work, reports of expeditions, and catalogues of type-specimens, special collections, etc. The majority of the volumes are octavos, but a quarto size has been adopted in a few instances in which large plates were regarded as indispensable. Since 1902 a series of octavo volumes containing papers relat- ing to the botanical collections of the Museum, and known as the Contributions from the National Herbarium, has been published as bulletins. The present work forms No. 92 of the Bulletin series. RICHARD RATHBUN, Assistant Secretary, Smithsonian Institution, In charge of the United States National Museum. WASHINGTON, D. C., July 21, 1915. in M375696 TABLE OF CONTENTS. Page. Preface... vn Bibliographic list of genera and species PREFACE. The literature of systematic natural history has become so voluminous that it is almost impossible for the student to attain good results without the aid of some kind of a compilation. In Paleozoic paleontology the need of such an index is perhaps greatest for the fossils of the Ordovician, Silurian, and Devonian periods for the reason that the Carboniferous has been covered up to 1898 by Weller's Bibliographic Index of North American Invertebrates (Bulletin 153, United States Geological Survey) , and the numerous monographs of the Secretary of the Smithsonian Institu- tion upon Cambrian geology and paleontology have assembled the fossils of that period. Dr. E. M. Kindle, while a member of the United States Geological Survey, prepared an index of Devonian fossils which will probably be published in the future. In the course of work upon the paleontologic collections of the United States National Museum the present author has specialized upon the Ordovician and Silurian, and it therefore became appropriate for him to prepare the bibliographic index which is herewith placed at the service of his fellow workers. The great amount of labor required to complete an index of this size and character in a few years is very evident, and the work could not have been brought to a speedy conclusion had the author not had the help of two indefatigable and intelligent assistants, Miss Florence George and Miss Adelaide C. Quisenberry, to both of whom he is under great obligations. The refinement of stratigraphic designation consequent on the great advance in knowledge of Ordovician and Silurian stratigraphy in the last decade has necessitated a careful examination of all described fossils in order to locate them accurately in the time scale. In this work and also in the task of clearing up the synonyms the author is indebted to many friends for generous help, particularly to Dr. Rudolph Ruedemann, Mr. Frank Springer, Dr. P. E. Raymond, and Prof. W. H. Twenhofel. To Dr. E. O. Ulrich, whose knowledge of American Paleozoic paleontology and stratigraphy, whether in manuscript form or otherwise, has ever been at the command of the writer, he is under special indebtedness. The writer has also had access to a set of references to American Paleozoic fossils covering part of the literature up to 1906, prepared under the direction of Prof. Charles Schuchert by Miss M. W. Moodey and Mr. J. M. Nickles. This set was of greatest use for its foreign generic references, but in order to insure as few errors as possible these references were again checked up with the literature covered by them. The terms Ordovician and Silurian in the title of this work are employed in a broad sense, so as to include formations which, although considered of Cambrian or Devonian age by some, are still placed in the Ordovician or Silurian by others. The particular cases in the Siluiian are those of the upper Monroan and the Keyser forma- tions, both of which the author would place in the Devonian. With the Ordovician the author has catalogued the Ozarkian and Canadian faunas, both of which divisions are regarded by Ulrich, Schuchert, Walcott, and others, the writer included, as of systemic value. In fact, then, the present index is intended to cover all American fossils which are known to occur in formations regarded as probably younger than those which are definitely decided to be of Cambrian age, and older than those now generally considered to belong to the Devonian period. VII VIII PREFACE. Every effort has been made to eliminate errors, but it is inevitable that many will be found. As the author intends to keep this index up to date for use in the United States National Museum, all corrections will be greatly appreciated. A chapter devoted to the literature of American Ordovician and Silurian paleontology was prepared for this work, but was omitted when it was found that this subject will be included in a forthcoming bibliographic publication by the United States Geological Survey The citations have been brought up to the close of 1914 with the exception that two important monographs (Schuchert, Revision of Paleozoic Stelleroidea, Bulletin 88, United States National Museum, and Springer, Monograph Crinoidea Flexibilia, Smithsonian Institution), then in press or ready for publication, were included. Following the bibliographic list proper which makes up the greater part of the work (pages 1 to 1342), the author has added an index of specific names (pages 1343 to 1406), showing under what generic or other combination any particular name has been employed. Then, in order that the biological classification of any doubtful genus may be readily ascertained, a biological classification (pages 1407 to 1428) and an alphabetical list of genera (pages 1429 to 1440) are given. Finally, as an aid in recalling the position of the many geological formations cited, an alphabetical list of American Ordovician and Silurian formations, indicating their approximate place in the time scale (pages 1511 to 1521), and correlation tables covering the most important areas of fossiliferous rocks, are given. With the help of these several features, in addition to the bibliographic references, it is believed that all the needs of the student with one exception are covered. This exception is the failure to indicate the characteristic species of each formation in the faunal lists. As knowledge of the early Paleozoic faunas increases it is becoming more evident that a species is characteristic of a formation only in a certain area of deposition and when considered in connection with the associated organisms. As the origin of the fauna, the lithology of its inclos- ing sediments, and still other factors must also be considered in determining such species, it has not seemed advisable to attempt to indicate them at present. The bibliographic citations are abbreviated as far as possible without sacrificing clearness, and the horizon and locality of each species are condensed into as few words as needed. The type locality is cited first, and in cases where a species occurs in several formations the name of the particular formation follows in parenthesis each locality listed. It will be noted that this index is also a register of the types of Or- dovician and Silurian fossils contained in the United States National Museum. The type terms holotype, paratype, and cotypes, for primary types, and plesiotypes, for all supplemental types, employed throughout this work are those adopted in the division of paleontology in the United States National Museum. All valid species are printed in heavy-faced type. The cross references are condensed as much as possible, and in cases where the generic cross reference will suffice for the species under it, those for the latter are not given. BIBLIOGRAPHIC INDEX OF AMERICAN ORDO VICIAN AND SILURIAN FOSSILS. BY RAY S. BASSLEK Curator of Paleontology, United States National Museum. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. ACACOCRINUS Wachsmuth and Springer. Genotype: A. elrodi Wachsmuth and Springer. Acacocrinus (subgenus of Habrocrinus) Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 515. Miller, N. A. Geol. Pal., 2d App., 1897, p. 730. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194. Acacocrinus americanus Wachsmuth and Springer. Acacocrinus americanus Wachsmuth and Springer, Mem. Mus. Comp. Zool., Har- vard, 21, 1897, p. 516, pi. 34, fig. 15a, b. Niagaran (Laurel): St. Paul, Indiana. Acacocrinus elrodi Wachsmuth and Springer. Acacocrinus elrodi Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 515, pi. 34, fig. 16. Niagaran (Waldron): Hartsville, Indiana. ACANTHALOMA Conrad. See Ceratocephala Warder. ACANTHOCLEMA Hall. Genotype: Trematopora alternata Hall. Acanthoclema Hall, 5th Ann. Rep. State Geol. New York for 1885, 1886, expl. pi. 25. Hall and Simpson, Pal. New York, 6, 1887, p. 15. Miller, N. A. Geol. Pal., 1889, p. 291. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 402, 661. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 552. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 44. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 58; Zittel-Eastman Textb. Pal., 1913, p. 344. Acanthoclema asperum (Hall). Trematopora aspera Hall, Pal. New York, 2, 1852, p. 154, pi. 40 A, figs. lOa-c. Batostomella? aspera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 189. Acanthoclema asperum Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 58, pi. 21, figs. 3-5; pi. 24, figs. 7-9; pi. 25, figs. 17-20. Clinton: Lockport, Rochester, etc., New York; Grimsby, Hamilton, etc., On- tario (Rochester); Osgood, Indiana (Osgood). Phsiotypes. Cat. No. 35756, U.S.N.M. 84243 Bull. 9215 1 1 VIII PREFACE. Every effort has been made to eliminate errors, but it is inevitable that many will be found. As the author intends to keep this index up to date for use in the United States National Museum, all corrections will be greatly appreciated. A chapter devoted to the literature of American Ordovician and Silurian paleontology was prepared for this work, but was omitted when it was found that this subject will be included in a forthcoming bibliographic publication by the United States Geological Survey The citations have been brought up to the close of 1914 with the exception that two important monographs (Schuchert, Revision of Paleozoic Stelleroidea, Bulletin 88, United States National Museum, and Springer, Monograph Crinoidea Flexibilia, Smithsonian Institution), then in press or ready for publication, were included. Following the bibliographic list proper which makes up the greater part of the work (pages 1 to 1342), the author has added an index of specific names (pages 1343 to 1406), showing under what generic or other combination any particular name has been employed. Then, in order that the biological classification of any doubtful genus may be readily ascertained, a biological classification (pages 1407 to 1428) and an alphabetical list of genera (pages 1429 to 1440) are given. Finally, as an aid in recalling the position of the many geological formations cited, an alphabetical list of American Ordovician and Silurian formations, indicating their approximate place in the time scale (pages 1511 to 1521), and correlation tables covering the most important areas of fossiliferous rocks, are given. With the help of these several features, in addition to the bibliographic references, it is believed that all the needs of the student with one exception are covered. This exception is the failure to indicate the characteristic species of each formation in the faunal lists. As knowledge of the early Paleozoic faunas increases it is becoming more evident that a species is characteristic of a formation only in a certain area of deposition and when considered in connection with the associated organisms. As the origin of the fauna, the lithology of its inclos- ing sediments, and still other factors must also be considered in determining such species, it has not seemed advisable to attempt to indicate them at present. The bibliographic citations are abbreviated as far as possible without sacrificing clearness, and the horizon and locality of each species are condensed into as few words as needed. The type locality is cited first, and in cases where a species occurs in several formations the name of the particular formation follows in parenthesis each locality listed. It will be noted that this index is also a register of the types of Or- dovician and Silurian fossils contained in the United States National Museum. The type terms holotype, paratype, and cotypes, for primary types, and plesiotypes, for all supplemental types, employed throughout this work are those adopted in the division of paleontology in the United States National Museum. All valid species are printed in heavy-faced type. The cross references are condensed as much as possible, and in cases where the generic cross reference will suffice for the species under it, those for the latter are not given. BIBLIOGRAPHIC INDEX OF AMERICAN ORDO VICIAN AND SILURIAN FOSSILS. BY RAY S. BASSLEK Curator of Paleontology, United States National Museum. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. ACACOCRINUS Wachsmuth and Springer. Genotype: A. elrodi Wachsmuth and Springer. Acacocrinus (subgenus of Habrocrinus) Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 515. Miller, N. A. Geol. Pal., 2d App., 1897, p. 730. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194. Acacocrinus americanus Wachsmuth and Springer. Acacocrinus americanus Wachsmuth and Springer, Mem. Mus. Comp. Zool., Har- vard, 21, 1897, p. 516, pi. 34, fig. 15a, b. Niagaran (Laurel): St. Paul, Indiana. Acacocrinus elrodi Wachsmuth and Springer. Acacocrinus elrodi Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 515, pi. 34, fig. 16. Niagaran (Waldron): Hartsville, Indiana. ACANTHALOMA Conrad. See Ceratocephala Warder. ACANTHOCLEMA Hall. Genotype: Trematopora alternata Hall. Acanthoclema Hall, 5th Ann. Rep. State Geol. New York for 1885, 1886, expl. pi. 25. Hall and Simpson, Pal. New York, 6, 1887, p. 15. Miller, N. A. Geol. Pal., 1889, p. 291. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 402, 661. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 552. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 44. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 58; Zittel-Eastman Textb. Pal., 1913, p. 344. Acanthoclema asperum (Hall). Trematopora aspera Hall, Pal. New York, 2, 1852, p. 154, pi. 40 A, figs. lOa-c. Batostomella? aspera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 189. Acanthoclema asperum Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 58, pi. 21, figs. 3-5; pi. 24, figs. 7-9; pi. 25, figs. 17-20. Clinton: Lockport, Rochester, etc., New York; Grimsby, Hamilton, etc., On- tario (Rochester); Osgood, Indiana (Osgood). Plesiotypes.C&t. No. 35756, U.S.N.M. 84243 Bull. 9215 1 1 2 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ACANTHODICTYA Hinde. Genotype: A. hispida Hinde. Acanthodictya Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 47. Miller, N. A. Geol. Pal., 1st App., 1892, p. 666. Dawson, Trans. Boy. Soc. Canada, 2dser., 2, sec. 4, 1896, p. 110. Acanthodictya hispida Hinde. Acanthodictya hispida Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 48, figs. 18, 19, pi. 3, fig. 8. Rauff, Palaeontographia, 40, 1894, p. 255. Dawson, Trans. Roy. Soc. Canada, 2d ser., 2, sec. 4, 1896, p. 110, figs. 20, 21, pi. 3, fig. 11. Canadian? (Levis?): Metis, Quebec. ACANTHOGRAPTUS Spencer. Genotype: A. grant! Spencer. Acanthograptus Spencer, Canadian Nat., n. s. 8, 1878, p. 461. Lapworth Quart. Jour. Geol. Soc. London, 37, 1881, p. 174. Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pp. 562, 581; Bull. Mus. Univ. State Missouri, 1, 1884, p. 31. Miller, N. A. Geol. Pal., 1889, p. 170. Ruedemann, Mem. New York State Mus., 9, 1908, p. 191. ACANTHOORAPTUS BARTONENSis Grant. See Acanthograptus walkeri. Acanthograptus chaetophorus Gurley. Acanthograptus chsetophorus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1911, p. 61, fig. 84, pi. 3, fig. 5. Niagaran dolomite: Hamilton, Ontario. Acanthograptus grant! Spencer. Acanthograptus granti Spencer, Canadian Nat., n. s., 8, 1878, p. 461; 10, 1882, p. 165; Bull. Mus. Univ. State Missouri, 1, 1884, p. 31, pi. 4, fig. 5; Trans. Acad. Sci. St. Louis, 4, 1884, p. 581, pi. 4, fig. 5. Gurley, Jour. Geol., 4, 1896, pp. 92, 308. Ruedemann, Mem. New York State Mus., 11 pt. 2, 1908, pi. 6, fig. 3; pi. 7, fig. 3. Bassler, Bull. TJ. S. Nat. Mus., 65, 1909, pp. 56, 57, figs. 72-74. Niagaran dolomite: Hamilton, Ontario. Acanthograptus multlsplnus Gurley. Acanthograptus multispinus (Gurley MS.), Bassler, Bull. U. S. Nat. Mus., 65, 1911, p. 61, figs. 85, 86. Niagaran dolomite: Hamilton, Ontario. Acanthograptus pulcher Spencer. Acanthograptus pulcher Spencer, Canadian Nat., 10, 1882, p. 165 (nom. mid.); Bull. Mus. Univ. State Missouri, 1, 1884, p. 32, pi. 4, fig. 6; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 564, 582, pi. 4, fig. 6. Miller, N. A. Geol. Pal., 1889, p. 170, fig. 128. Gurley, Jour. Geol. 4, 1896, pp. 92, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 59, 60, figs. 81-83, pi. 4, fig. 5. Niagaran dolomite: Hamilton, Ontario. Acanthograptus walkeri (Spencer). Inocaulis walkeri Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.); Bull. Mus. Univ. State Missouri, 1, 1884, p. 35, pi. 5, fig. 2; Trans. Acad. Sci. St. Louis, 4, 1884, p. 585, pi. 5, fig. 2. Gurley, Jour. Geol., 4, 1896, pp. 99, 309. Acanthograptus walkeri Ruedemann, Mem. New York State Mus., 11, 1908, p. 194, figs. 97, 98, pi. 6, figs. 1, 2; pi. 7, fig. 4. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 57-59, figs. 75-80. Acanthograptus bartonensis Grant, Jour, and Proc*. Hamilton Assoc., 16, 1900, p. 101 (fig. only). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES 6 Acanthograptus walker! Continued. Niagaran dolomite: Hamilton, Ontario. Clinton (Rochester): Middleport, New York. Pksiotype.C&t. No. 54277, U.S.N.M. ACANTHOLENUS Matthew. Genotype: Leptoplastus spiniger Matthew. Acantholenus Matthew, Trans. Royal Soc. Canada, 2d ser., 4, sec. 4, 1898, p. 142. Acantholenus spiniger (Matthew). Leptoplastus spiniger Matthew, Canadian Rec. Sci., 3, 1889, p. 487, fig. 4. Anomocare spiniger Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 61, pi. 13, figs. 4a-e. Acantholenus spiniger Matthew, Trans. Royal Soc. Canada, 2cl ser., 4, sec. 4, 1898, p. 142, pi. 2, figs. 4a-4e; Bull. Nat. Hist. Soc. New Brunswick, 16, 1898, p. 42. Canadian (Bretonian, Div. C 3b): Long Island, Kennebecasis River, New Bruns- wick. ACANTHONEMA Grabau. Genotype: A. holopiforme Grabau. Acanthonema Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 181. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 691. Acanthonema holopiforine Grabau. Acanthonema holopiformis Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 182, pi. 16, fig. 4, pi. 26, figs. 1-3; pi. 23, figs. 6, 8. Grabau and Shimer, N, A. Index Fossils, 1, 1909, p. 691. Upper Monroan: Wayne County, Mich., and Otsego, Wood County, Ohio (Lucas); Detroit River (Amherstburg). Acanthonema holopiforme obsoletum Grabau. Acanthonema holopiformis var. obsoleta Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 183, pi. 26, fig. 1, right half. Upper Monroan (Lucas): Gibraltar quarry, Wayne County, Michigan. Acanthonema laxum Grabau. Acanthonema laxa Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 183, pi. 26, fig. 4; pi. 27, figs. 3, 4. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 691. Upper Monroan: Grosse Island and Wayne County, Mich. (Lucas); Detroit River (Amherstburg). Acanthonema newberryi (Meek). Orthonema newberryi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1871, p. 81; Geol. Surv. Ohio, Pal. 1, 1873, p. 217, pi. 20, figs. 3a-b. Miller, N. A. Geol. Pal., 1889, p. 414, fig. 690. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 566, fig. Acanthonema newberryi Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 184, pi. 27, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 691, fig. 985. Upper Monroan (Lucas): Otsego, Wood County, Ohio. ACASTE Goldfuss. See Phacopidella Reed. ACERVULARIA Schweigger. Genotype: A. baltica Schweigger = A. ananas (Linnaeus). Acervularia Schweigger, Handb. der Naturg., 1820, p. 418. Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 187. Dana, Wilkes' U. S. Expl. Exped., 1838-42, 7, Zoophytes, 1846, p. 358; Amer. Jour. Sci. and Arts, 2d ser., 1, 1846, p. 184. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 4 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ACER VU LABI A Continued. (Arch. Mus. Hist. Nat., 5, 1851), pp. 171, 414. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 457. Hall, Geol. Surv. Iowa, 1, pt. 2, 1858, p. 476. Milne-Ed- wards, Hist. Nat. d. Corall., 3, 1860, p. 407. Dybowski, Archiv. f. Natur. Liv.-Ehst. und Kurl., 5, 1873, p. 338. Zittel, Handbuch Pal., 1, 1879, p. 233. Roemer, Leth. geog., pt. 1, Leth Pal., 1883, p. 350. Koch, Pakeontographica, 29, 1883, pp. 330, 342. Miller, N. A. Geol. Pal., 1889, p. 170. Sherzer, Amer. Geol., 7, 1891, pp. 284-289. Koken, Die Leitfossilien, Leipzig, 1896, p. 311, fig. 234. Lindsfcrom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 17. Zittel-Eastman Textb. Pal., 1, 1900, p. 79. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 163. Acervularia austini (Salter). Strephodes? Austini Salter. Sutherland's Jour. Voyage in Baffins Bay, etc., 2, 1852, p. ccxxx, pi. 6, figs. 6, 6a. Etheridge, Quart. Jour. Geol. Soc. London, 1878, p. 587. Woodward, Geol. Mag., dec. 2, 5, 1878, p. 386, pi. 10, figs. 1, 2. Clisiophyllum austini? Houghton, Jour. Geo. Soc. Dublin, 1, 1857, p. 246, pi. 10, figs. 2, 2a. Acervularia austini Lambe, The Cruise of the "Neptune," App. 4, 1906, p. 322; Cruise of the " Arctic" in 1908-9, 1910, p. 479. Niagaran: Cornwallis, Beechey and Griffith's Islands, and Cape Hilgard, Arctic America. Acervularia clintonensis Nicholson. Acervularia clintonensis Nicholson, Geol. Surv. Ohio, Pal. 2, 1875, p. 227, pi. 23, figs. 2, 2a. Miller, N. A. Geol. Pal., 1889, p. 170, fig. 129. Upper Medinan (Brassfield?): Yellow Springs, Ohio. ACERVULARIA COMMUNIS Simpson. See Prismatophyllum inequalis. Acervularia gracilis (Billings). Strombodes gracilis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 306, fig. 309; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 113 (Adv. sheets, 1862). Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig. Lesley, Geol. Surv. Pennsylvania, .Rep. P. 4, 1890, p. 1109, fig. Acervularia gracilis Lambe, Ottawa Nat., 12, 1899, p. 221; Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 163, pi. 14, figs. 2, 2a. Upper Medinan (Cataract): Manitouaning, Grand Manitoulin Island, Lake Huron. ACERVULARIA INEQUALIS Sehuchert. See Prismatophyllum inequale. ACHRADOCRINUS Schultze. Genotype: A. ventrosus Schultze. Achradocrinus Schultze, Denk. d. Kais. Akad. der Wiss., Math.-Naturw. Cl. 24, Abth. 2, p. 213, fig. 19. Zittel, Handb. Pal., 1, 1879, p. 364. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 115, 151. (Rev. Pal., pt. 3, sec. 2, pp. 191, 272.) Bather, Ann. Mag. Nat. Hist., 6 ser., 5, 1890, p. 324, pi. 14, fig. 22; Treatise on Zool., pt. 3, Echinoderma, 1900, p. 178, fig. 95. Slocom, Field Columbian Mus., 2, 1908, p. 287. Zittel, Handb. Pal., 1, 1910, p. 152. Achradocrinus patulus Slocom. Achradocrinus patulus Slocom, Field Columbian Mus., 2, 1908, p. 288, pi. 85, figs. 1-4. Niagaran (Racine): Romeo, Illinois. BIBLIOGRAPHIC LIST OF GENERA AXD SPECIES. 5 ACIDASPLS Murchison. Genotype: A. brightii Murchison. Aridaspis Murchison, Sil. Syst., 1839, p. 658. Hall, Pal., 1 New York, 1847, p. 240. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 777; Syst. Sil. du ( futre Boheme, 1, 1852, p. 692. Salter, Mem. Geol. Surv. United Kingd., dec. 7, 1853, pi. 6. McCoy, British Pal. Rocks and Fossils, 1854, p. 152. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 517. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 217. Gebhard, Ninth Rep. New York State Cab. Nat. Hist., 1856, p. 46. Chapman, Canadian Jour., n. s., 1, 1856, p. 282. Salter, Cat. Camb. Sil. Foss., 1873, p. 134. Steinhardt, Beit. z. Naturk. Preus. Phys.- Oekon. Gesell., Konigsberg, 1874, p. 62. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 128, 129. Angelin, Pal. Scandinavica, 3d ed., Holiniae, 1878, p. 33. Walcott, Science, 3, 1884, p. 281. Zittel, Handb. d. Pal., 2, 1885, p. 622. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7, ser., 33, 1885, p. 1. Hall and Clarke, Pal. New York, 7, 1888, p. xxxv, fig.; p. xxxvi. Whidborne, Mon. Devonian Fauna South England, 1, Pal. Soc., 1889, p. 11. Clarke, 10th Rep. State Geol. New York for 1890, 1891, pp. 63, 67; 44th Rep. New York State Mus., 1892, pp. 93, 97. Vogdes, Cal. Acad. Sci., Occ. Pap., 4, 1893, p. 259. Beecher, Amer. Geol., 16, 1895, p. 178. Koken, Die Leit- fossilien, Liepzig, 1896, p. 31, fig. 20. Oehlert, Bull. Soc. geol. France, 3d ser., 24, 1896, p. 112, text fig. 33. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3, fig. 23. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 26, 35. Miller, N. A. Geol. Pal., 1889, p. 526. Cumings, Thirty-second Ann. Rep. Dep. Geol. Nat, Res. Indiana, 1908, p. 1051. Gra- bauand Shimer, N. A. Index Fossils, 2, 1910, p. 311 .Raymond, Zittel- Eastman Textb. Pal., 1913, p. 722. Observation. Most of the above references are to Acidaspis in a broad sense, including Ceratocephala and Odontopeura. ACIDASPIS ANCHORALIS Miller. See Ceratocephala anchoralis. Acidaspis brevispinosa Foerste. Acidaspis brevispinosa Foerste, Geol. Surv., Ohio, 7, 1895, p. 522, pi. 37A, fig. 13. Upper Medinan (Brassfield): Huffman Quarry, Dayton, Ohio. ACIDASPIS CERALEPTA Meek. See Ceratocephala ceralepta. ACIDASPIS CINCINNATIENSIS Meek. See Ceratocephala cincinnatiensis. ACIDASPIS CROSOTUS Cumings. See Odontopleura crosota. ACIDASPIS DANAI Hall. See Ceratocephala goniata. ACIDASPIS FIMBRIATA Hall. See Ceratocephala fimbriata. ACIDASPIS HALLI Shumard. See Odontopleura halli. ACIDASPIS HORANI Billings. See Ceratocephala horani. ACIDASPIS IDA Winchell and Marcy. See Ceratocephala goniata. Acidaspis obsoleta Van Ingen. Acidaspis obsoleta Van Ingen, School of Mines Quart., 23, 1901, p. 51, figs. 13, 14, pi., figs. 9, 10. Niagaran (St. Clair): St. C lair Spring, Independence County, Arkansas. ACIDASPIS O'NEALLI Miller. See Odontopleura o'nealli. ACIDASPIS ORTONI Foerste. See Odontopleura ortoni. ACIDASPIS PARVULA. See Odontopleura parvula. 6 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Acidaspis perarmata Whiteaves. Acidaspis perarmata Whiteaves, Canadian Rec. Sci., 4, 1891, p. 300, pi. 3, fig. 6; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 289, pi. 42, fig. 3. Niagaran: Long Point, Lake Winnipegosis, Saskatchewan, Canada. Acidaspis quinquespinosa Lake. Acidaspis quinquespinosa Lake, Quart. Jour. Geol. Soc. London, 52, 1896, p. 240, pi. 7, figs. 3, 4. Van Ingen, School of Mines Quart., 23, 1901, p. 50, fig. 12, pi., figs. 7, 8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 311, fig. 1621h. Silurian: Dudley, England (Wenlock); St. Clair Spring, Independence County, Arkansas (Niagaran-St. Clair). ACIDASPIS RHYNCOCEPHALUS Meek. See Ceratocephala cincinnatiensis. ACIDASPIS SPINIGER Hall. See Bathyurus spiniger. ACIDASPIS TRENTONENSIS Hall. See Odontopleura trentonensis. Acidaspis vanhornei Weller. Acidaspis vanhornei Weller, Bull. Chicago Acad. Sci., 4, pt. 2, 3907, p. 251, pi. 23, figs. 3, 4. Xiagaran (Racine): Bridgeport, Illinois. ACLEISTOCERAS Hyatt. See Poterioceras McCoy. ACROCULIA Phillips. See Platyceras Conrad. ACROTHELE Linnarsson. Genotype: A. coriacea Linnarsson. Acrothele Linnarsson, Bihang till K. svensk. Vet.-Akad. Handl., 3, No. 12, 1876, pp. 20-21. Zittel, Handbuch d. Pal., 1, Abth. 1, 1880, p. 665. Davidson, British Foss. Brach., 5, pt. 2, 1883, pp. 213-214. Walcott, Bull. U. S. Geol. Surv., 30, 1886, pp. 107-108. (Ehlert, Man. Conch., 1887, p. 1269. Hall and Clarke, llth Ann. Rep. State Geol. New York, 1892, pp. 249, 250; 45th Ann. Rep. New York State Mus., 1892, pp. 565, 566; Pal. New York, 8, pt. 1, 1892, pp. 98-101. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 308. Mat- thew, Geol. Surv. Canada, Rep. Cam. Rocks Cape Breton, 1903, pp. 103-105. Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 200. Walcott, Smiths. Misc. Coll., 53, 1908, pp. 142 and 146; Mon. U. S. Geol. Surv., 51, 1912, p. 630. Acrothele levisensis Walcott. Acrothele levisensis Walcott, Smithsonian Misc. Coll., 53, No. 3, 1908, p. 85, pi. 8, fig. 13; Mon. U. S. Geol. Surv., 51, 1912, p. 646, pi. 81, figs. 12, 12a, b. Canadian (Levis, Didymograptus zone): Point Levis, Quebec. Acrothele pretiosa (Billings). Obolella pretiosa Billings, Pal. Foss., 1, 1862, p. 68, fig. 61; Geol. Canada, 1863, p. 230, fig. 239. Chapman, Canadian Jour., n. s., 8, 1864, p. 191, fig. 160c.; Expos. Min. Geol. Canada, 1864, p. 163, fig. 160b. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111. Billingsia pretiosa Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 467 (gen. ref.). Elkania pretiosa Ford, Amer. Jour. Sci., 3d ser., 32, 1886, p. 325 (gen. ref.). Linnarssonia pretiosa Schuchert (part) Bull. U. S. Geol. Surv., 87, 1897, p. 262. Walcott, Proc. U. S. Nat. Mus., 23, 1901, p. 673. Grabau and Shimer, Index Fossils, 1, 1907, p. 200. Acrothele pretiosa Walcott, Proc. U. S. Nat. Mus., 21, 1898, p. 402; Mon. U. S. Geol. Surv., 51, 1912, p. 652, pi. 58, figs. 1, la-g. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 7 Acrothele pretiosa Continued. Canadian: Chaudiere River at Grand Trunk Rail Road Bridge, Cape Rouge above Quebec, Canada (Sillery); near Grenville, Washington County, New York; Point Levis, Quebec (Levis, Didymograptus zone). Pl&fiotype.C&t. No. 52004 U.S.N.M. Acrothele rotunda (Nicholson). Dawsonia rotunda Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 141, fig. 3a, b. Canadian (Levis, Diplograptus dentatus zone): Point Levis, Quebec. ACROTRETA Kutorga. Genotype: A. subconica Kutorga. Acrotreta Kutorga, Verhandl. Russ.-kais Min. Gesell. St. Petersburg for 1847, No. 12, 1848, pp. 259, 260. Morris, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, pp. 316, 318. Davidson, Brit. Fossil Brach., 1, Introduction, No. 3, 1853, p. 133. Von Seebach, Zeits. d. d., geol. Gesell., 17, Hft. 2, 1865, p. 341. Davidson, British Foss Brach., 3, pt. 7, No. 4, 1871, p. 343. Dall, Bull. IL S. Nat. Mus., 8, 1877, p. 12. Zittel, Handb. Pal., 1, Abth. 1, 1880, p. 666. Walcott, Mon. U. S. Geol. Surv., 8, 1884, pp. 16-17. (Ehlert, Man. Conch., 1887, p. 1266. Hall and Clarke, llth Ann. Rep. State Geol. New York, 1892, p. 250. 45th Ann. Rep. New York State Mus., 1892, p. 566; Pal. New York, 8, pt. 1, 1892, pp. 101-104. Schu chert, Zittel-Eastman, Textb. Pal., 1, 1900, p. 308. Matthew, Bull. Nat. Hist. Soc. New Brunswick, 4, pt. 5, 1902, p. 390; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 94-97. Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 199. Walcott, Smithsonian Misc. Coll., 53, 1908, pp. 142, 146; Mon. U. S. Geol. Surv., 51, 1912, p. 671. Linnarssonia Walcott, Amer. Jour. Sci., 3d ser., 29, 1885, p. 115. Matthew, Trans. Royal Soc. Canada, 1st ser., 3, sec. 4, 1886, p. 35. Dawson, Trans. Royal Soc. Canada, 1st ser., 7, sec. 4, 1890, pp. 53-54. Hall and Clarke, llth Ann. Rep. State Geol. New York, 1892, p. 251; 45th Ann. Rep. New York State Mus., 1892, p. 567; Pal. New York, 8, pt. 1, 1892, pp. 107-109. Matthew, Trans. Royal Soc. Canada, 1st ser., 9, sec. 4, 1892, p. 42. ACROTRETA ATTENUATA Meek (part). See Acrotreta idahoensis. ACROTRETA BATLEYI Matthew. See Acrotreta bisecta. Acrotreta belt! (Davidson?) (Matthew). ?0bolella belti Davidson, Geol. Mag., 5, 1868, p. 310, pi. 15, figs. 25-27. Linnarssonia belti? Matthew, Trans. Royal Soc. Canada, 1st ser, 9, sec. 4, 1892, pp. 42, 43, pi. 12, figs. 7a-c; Geol. Surv. Canada, Rep. Cambrian rocks Cape Breton, 1903, p. 209, pi. 16, fig. 3a-c. Lower Tremadoc shales: North Wales. Canadian (Bretonian Div. C. 3 c): St. John, New Brunswick. Acrotreta bisecta Matthew. Acrotreta baileyi Matthew, Trans. Royal Soc. Canada, 1st ser., 9, sec. 4, 1892, p. 43, pi. 12, fig. 7d. Acrotreta bisecta Matthew, Bull. Nat. Hist. Soc. New Brunswick, 4, pt. 4, 1901, pp. 275-276, pi. 5, figs. 5a-g; ibid., pt. 5, 1902, p. 394, pi. 16, figs. 2a-g. Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 582. Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, pp. 186-187, pi. 11, figs. 5a-g. Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 298-299; Mon. IT. S. Geol. Surv., 51, 1912, p. 678, pi. 66, figs. 7, 7a-e. 8 BULLETIN" 92, UNITED STATES XATIOXAJ MUSEUM. Acrotreta blsecta Continued. Acrotreta sipo Matthew, Bull. Nat. Hist. Soc. New Brunswick, 4, pt, 5, 1902, pp. 406-407, pi. 18, figs. 1, 2; Geol. Surv. Canada, Rep. Cambrian Rockt; Cape Breton, 1903, pp. 185-186, pi. 18, figs. 1, 2. Canadian (Bretonian Div. C. 3 c): McLeod Brook, Cape Breton, Nova Scotia, and Navy Island, St. John Harbor, New Brunswick. Acrotreta?? cancellata Walcott, Acrotreta?? cancellata Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 299; Mon. U. S. Geol. Surv., 51, 1912, p. 679, pi. 79, figs. 5, 5a. Canadian (Lower Pogonip): Roundtop Mountain, Eureka County, Nevada. Acrotreta convexa Walcott. Acrotreta convexa Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 584; Mon. V. S. Geol. Surv., 51, p. 682, pi. 66, figs. 6, 6a-c. Canadian (Bretonian Div. C. 3 c): Salmon River, thirteen miles south of Marion Bridge, etc., Cape Breton, Nova Scotia. Acrotreta curvata Walcott. Acrotreta gemma Walcott (not Billings) (part), Mon. 17. S. Geol. Surv., 8, 1884, pp. 17, 18, pi. 1, figs. Id, le (not figs, la-c, f); 10th Ann. Rep. U. S. Geol. Surv., 1891, p. 608, pi. 67, fig. 5b (not figs. 5a-e). Hall and Clarke (part), Pal. New York, 8, pt. 1, 1892, p. 102, fig. 55 (not figs. 56, 57). Walcott (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 499, pi. 62, fig. 2e (not figs. 2, 2a-d). Acrotreta curvata Walcott, Proc. U. S. Nat, Mus., 25, 1902, p. 584; Mon. U. S. Geol. Surv., 51, 1912, p. 682, pi. 68, figs. la-n. Canadian (Lower Pogonip): Hamburg Ridge, Eureka District, Eureka County, Nevada. Also in Upper Cambrian of Oklahoma. Holotype and paratypes. Cat. No. 35269, U.S.N.M. Acrotreta gemma Billings. Acrotreta gemma Billings, Geol. Surv. Canada, Pal. Fossils, ], 1865, pp. 216, 217, figs. 201a-f. Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 685, pi. 66, figs. la-b. Canadian (Quebec P.): Four miles northeast of Portland Creek, Newfoundland. ACROTRETA GEMMA Walcott. See Acrotreta curvata and A. idahoensis alta. Acrotreta idahoeiisis Walcott. Acrotreta attenuata Meek (part), 6th Ann. Rep. U. S. Geol. and Geog. Surv. Terr, for 1872, 1873, p. 463, footnote. Acrotreta idahoensis Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 587; Mon. U. S. Geol. Surv., 51, 1912, p. 687, pi. 65, figs, la-i; pi. 68, figs. 2a-g. Canadian (Lower Pogonip): East of Hamburg Ridge, etc., Eureka County, Nevada. Also Upper and Middle Cambrian of Utah, Montana, etc. Holotype and paratypes.C&t. Nos. 52089, 52091, U.S.N.M. Acrotreta idahoensis alta Walcott. Acrotreta gemma Walcott (not Billings) (part), Mon. U. S. Geol. Surv., 8, 1884, pp. 17, 18, pi. 1, figs, la, Ib (not figs. Ic-f); pi. 9, figs. 9, 9a; 10th Ann. Rept, U. S. Geol. Surv., 1891, p. 608, pi. 67, figs. 5, 5a (not figs. 5b-e). Hall and Clarke (part) Pal., New York, 8, pt. 1, 1892, p. 102, figs. 56, 57 (not fig. 55). Walcott, (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 499, pi. 62, figs. 2a, 2c (not figs. 2, 2b, 2d, 2e). Acrotreta idahoensis alta Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 588; Mon. U. S. Geol. Surv., 51, 1912, p. 689, pi. 65, figs. 4-4b. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 9 Acrotreta Idahoensis alta Continued. Canadian (Base of Pogonip): Adams Hill, Eureka County, Nevada. Also Middle and Upper Cambrian of Montana, Utah, and Nevada. Holotype and paratype.V&t. Nos. 35273, 52099 U.S.N.M. ACROTRETA MINUTA Walcott. See Linnarssonella minuta. Acrotreta ovalis Walcott. Acrotreta ovalis Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 592; Mon. U. S. Geol. Surv., 51, 1912, p. 699, pi. 66, figs. 2, 2a-b. Ozarkian? (Levis-erratic): Point Levis, Quebec. ACROTRETA SIPO Matthew. See Acrotreta bisecta. ACTINOCERAS Bronn. Genotype: A. bigsbyi Bronn. Actinoceras Bronn, Leth. geog., 1837, p. 97. Stokes, Proc. Geol. Sue. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 707. McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 11. D'Orbigny, Prodr. de Pal., 1, 1849, p. 3. Woodward, Man. Mollusca, pt. 1, 1851, p. 88, fig. 47. Sae- mann, Palseontographica, 3, 1852, pp. 137, 145, 156. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 638. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 148. Barrande, Bull. Soc. Geol. France, 2d ser., 12, pt. 1, 1855, p. 458; Neues Jahrb. f. Min., etc., 1855, p. 395. Woodward, Geol. Mag., 5, 1868, p. 133. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1879, p. 760. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 272. Zittel, Handb. Pal., 2, 1884, p. 368. Foord, Geol. Mag., dec. 3, 5, 1888, p. 487; Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 164. Miller, N. A. Geol. Pal., 1889, p. 431. Whid- borne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1890, p. 119. Bather, Nat. Sci., 5, 1894, pp. 431, 434, fig. 6. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 781. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 528. Foord, Mon. Carb. Ceph. Ireland, pt. 5, Pal., Soc., App., 1903, p. 211. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 114. Hyatt, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 609. Ormoceras. Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 709. Woodward, Man. Mollusca, pt. 1, 1851, p. 88, fig. 48. Saemann, Palaeontographica, 3, 1852, pp. 146, 156. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, pp. 326, 328. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 400. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 150. Barrande, Bull. Soc. Geol. France, 2d ser., 12, pt. 1, 1855, p. 470. Chapman, Canadian Jour., n. s., 8, 1863, p. 20; Expos. Min. Geol. Canada, 1864, p. 128. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 765. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 271. Zittel, Handb. Pal., 2, 1884, p. 368. Miller, N. A. Geol. & Pal., 1889, p. 445. (Genotype: O.bayfieldi Stokes). Paractinoceras (subgenus of Actinoceras) Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 528 (Genotype: Sactoceras canadense Whiteaves). Deiroceras (subgenus of Actinoceras) Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 273 (Genotype: Orthoceras python Billings). Conotubularia Troost, Mem. Soc. Geol. France, 3, 1838, p. 87; 5th Geol. Rep. Ten- nessee, 1840, p. 5. Saemann, Palseontographica, 3, 1852, p. 146. Barrande, . Sil. Boheme, 2, pt. 3, 1874, p. 767. (Genotype: C. cuvierii Troost.) Actinoceras abnorme (Hall). Orthoceras abnorme Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 355, pi. 18 (9), fig. 10; rev. ed. 1868 (1870), p. 415, pi. 18, fig. 10; pi. 25, fig. 18.- Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 756, pi. 456. Day, Trans. Wisconsin Acad. Sci., Arts Letters, 4, 1879, p. 120. 10 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Actiiioceras abnorme Continued. Orthoceras (Actinoceras) abnorme Zittel, Handb. Pal., 2, 1884, p. 367, fig. 506. Actinoceras abnorme Ruedemann, Bull, New York State Mus., 80, 1905, p. 332, fig. 22. Xiagaran (Racine and Guelph): Racine, etc., Wisconsin. ACTINOCERAS ALLUMETTENSE Whiteaves. See Loxoceras allumettense. Actinoceras anticostiense (Billings). Orthoceras Anticostiense, Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 316; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 22 (loc. ref.). Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 731, pi. 434. Richmond and Gamachian: Charleton Point, etc., Anticosti. Actinoceras back! (Stokes). Orthocerae Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 204, pi. 30, fig. 1. Orthoceras Backii Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689. Orthoceras nummularium Etheridge (not Sowerby), Quart. Jour. Geol. Soc. Lon- don, 34, 1878, p. 608. Actinoceras Backi Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 182. Niagaran: Drummond Island, Lake Huron; Cape Louis Napoleon, Smith Sound, and Bessels Bay, Kennedy Channel, Arctic America. Observation. See Actinoceras rotulatum (Billings) for a possible synonym. Actinoceras bayfleldi (Stokes). Ormoceras Bayfieldii Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689 (nom. nud.); Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 709, pi. 40, fig. 1. Woodward, Man. Mollusca, pt. 1, 1851, p. 88, footnote, fig. 48. Barrande, Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 470, pi. A, fig. 5; Neues Jahrb. f. Min., etc., 1855, p. 408, pi. 6, fig. 5. Miller, N. A, Geol. Pal., 1889, p. 445, fig. 749. Orthoceras Bayfieldi Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 738, pi. 231. Orthoceras (Ormoceras) Bayfieldi, Zittel, Handb. Pal., 2, 1884, p. 368, fig. 507. Niagaran: Drummond Island, Lake Huron. Actinoceras beaumonti Castelnau. Actinoceras Beaumonti Castelnau, Essai Syst. Sil. PAmerique Septent., 1843, p. 32, pi. 6, fig. 1. Niagaran: Drummond Island, Lake Huron. Actinoceras beloi tense (Whitfield). Orthoceras (Actinoceras) Beloitense Whitfield, Ann. Rep. Geol. Surv. Wisconsin, for 1877, 1878, p. 77; Geol. Wisconsin, 4, 1882, p. 226, pi. 8, fig. 1; pi. 10, figs. 9, 10. Orthoceras Beloitense Chamberlin, Geol. Wisconsin, 1883, p. 159, figs. Actinoceras beloitense Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 782, pi. 47, fig. 18. Holtedahl. Vidensk, Skrifter, 1, No. 9, 1912, p. 8, pi. 4, fig. 2. Orthocerae Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 198, pi. 25, fig. 3 (not 1, 2). Actinoceras Bigsbyi, Stokes (part) Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840, p. 707. Orthoceras (Ormoceras) Backii? Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 298, pi. 1, fig. 4. Barrande, Syst. Sil. Centre Boheme, 2, text 4, 1877, p. 264, pi. 474, fig. 11. Black River (Platteville): Beloit and Janesville, Wisconsin; Thessalon Island, Lake Huron; Arctic America. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 11 Actlnoceras beudanti Castelnau. Artinoceras Beudanti Castelnau, Easai Syst. Sil. 1'Amerique Septent., 1843, p. 34, pi. 6, fig. 2. Niagaran: Drummond Island, Lake Huron. Actinoceras bigsbyi Bronn. Orthocerae Bigsby, Trans. Geol. Soc. London, 1, 1824, p. 198, pi. 25, figs. 1, 2 (not 3). Actinocras Bigsbyi Bronn, Leth. Geog., 1, 1837, p. 98, pi. 1, fig. 8. Stokes, Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 707. Seamann, Palseontographica, 3, 1852, p. 142. Foord, Cat. Ceph. British Mus., 1, 1888, p. 168. Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 84, pi. 10, fig. 2; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 208. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 781, pi. 47, figs. 15-17. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 115, fig. 1350. Orthoceras bigsbyi Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 149, fig. 109a, b, and App., p. 949. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 543, figs. Orthoceras (Actinoceras) Bigsbyi Barrande, Neues Jahrb. f. Min., etc., 1855, p. 400, Syst. Sil. du Centre Boheme, 1, pt. 3, 1874, p. 734, pi. 231, figs. 4, 5; pi. 437, figs. 10-16. Roemer, Leth, geog., 1, Leth. Pal., 1876, pi. 16, fig. 7. Actinoceras Lyonii Stokes, Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840, p. 707, pi. 59, fig. 1. Castelnau, Syst. Sil. de I'Amerique Septent., 1843, p. 32, pi, 17, figs. la-b. Ormoceras Lyonii Hector, Quart. Jour. Geol. Soc. London, 17, 1861, p. 439. Conoceras angulosum Saernann, Palseontographica, 3, 1852, p. 144. Black River: Thessalon Island, Lake Huron; New York; Ontario; Manitoba; Kentucky; Tennessee; Minnesota; Arctic America, etc. ACTINOCERAS BIGSBYI Stokes (part). See Actinoceras beloitense. Actinoceras blainvillei Castelnau. Aetinoceras Blainvillei Castelnau, Essai Syst. Sil. l'Amerique Septent., 1843, p. 31, pi. 5, fig. 1; pi. 8, fig. 1. Niagaran: Little Manitoulin Island, Lake Huron. Actinoceras (Paractinoceras) canadense (Whiteaves). Sactoceras Canadense Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 85, pi. 10, figs. la-c. Orthoceras Canadense Miller, N. A. Geol. Pal., 1st App., 1892, p. 697. Actinoceras (Sactoceras?) Canadense Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 210. Paractinooeras Canadense Hyatt, Zittel-Eastman Textbook Pal., 1900, p. 528. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 344. Black River or Richmond: Lake Winnipeg, Manitoba. ACTINOCERAS CAPITOLINUM Foord. See Actinoceras cuvieri. Actinoceras clouei (Barrande). Orthoceras clouei Barrande, Syst. Sil. du Centre Boheme, ser. 2, 1870, pi. 432, figs. 1-6; pi. 433, figs. 1, 2; pi. 434, figs. 1-5. Ordovician: Newfoundland. Actinoceras cordieri Castelnau. Actinoceras Cordieri Castelnau, Essai Syst. Sil. l'Amerique Septent., 1883, p. 31, pi. 5, fig. 2. Niagaran: Great Manitoulin Island, Lake Huron. 12 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Actlnoceras erebriseptum (Hall). Ormoceraa erebriseptum Hall, Pal. New York, 1, 1847, p. 313, pi. 86, fig. 2a; pi. 87, figs. 2a-e. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 821, fig. 621. Lesley, Geol. Surv. Pennsyl- vania, Rep. P 4, 1889, p. 504, fig. Actinoceras erebriseptum D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.). Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 173. Orthoceras erebriseptum Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 218, fig. 228. Chapman, Canadian Jour. n. s., 8, 1863, p. 206, fig. 208; Expos. Min. Geol. Canada, 1864, p. 178, fig. 208. Lesley, Geol. Surv. Pennsyl- vania, Rep. P 4, 1889, p. 546, figs. Orthoceras (Ormoceras) crebriseptum Barrande, Syst, Sil. du Centre Boheme, 2, pt. 3, 1874, p. 739, pi. 434, figs. 6-8. Cineinnatian (Pulaski): Turin, Pulaski, etc., New York. Actinoceras(?) cuvieri (Troost). Conotubularia Cuvierii Troost, Mem. Soc. Geol. France, 3, 1838, p. 88, pi. 9, fig. 1; 5th Geol. Rep. Tennessee, 1840, p. 48; 6th Geol. Rep. Tennessee, 1841, p. 176. Actinoceras Cuvieri D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.). Orthoceras cuvieri Miller, N. A. Geol. Pal., 1889, p. 447 (gen. ref.). Orthoceras Capitolinum Safford, Geol. Tennessee, 1869, p. 290, pi. 4 (G. 3), figs. la, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 544, figs. - Actinoceras capitolinum Foord. Cat. Foss. Ceph. British Mus., 1, 1888, p. 174. Jovellania capitolinum Foord. Cat. Foss. Ceph. British Mus., 1, 1888, p. 327 (gen. ref.). Trenton (Bigby): Nashville, Tennessee. Actinoceras daytonense (Foerste). Orthoceras (Actinoceras) Daytonensis Foerste, Proc. Boston Soc. Nat. Hist., 24, ]889, p. 286, pi. 8, fig. 6; Geol. Surv. Ohio, 7, 1893, p. 539, pi. 33, fig. 6. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. Actinoceras desnayesi Castelnau. Actinoceras Deshayesii Castelnau, Essai Syst. Sil. rAmerique Septent., 1843, p. 32, pi. 8, fig. 4. Silurian: Green Bay, Lake Michigan. Actinoceras distans (Hall). Endoceras distans Hall, Pal. New York, 1, 1847, p. 220, pi. 58, figs, la, b. Actinoceras distans Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist,, n, pt. 1, 1898, p. 58 (gen. ref.). Trenton: Turin, Lewis County, New York. Actinoceras dufresnoyi Castelnau. Actinoceras Dufresnoyi Castelnau, Essai Syst. Sil. I'Ameriqiie Septent., 1843, p. 32, pi. 8, fig. 3. Niagaran: Drummond Island, Lake Huron. Actinoceras fulgur (Billings). Orthoceras propinquum Billings (not Eichwald), Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 320. Orthoceras fulgur Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 22. Richmond (Charleton): Charleton Point, Anticosti. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 13 Actlnoceras gracile (Hall). Ormoceras? gracile Hall, Pal. New York, 1, 1847, p. 58, pi. 17, fig. 3. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 504, fig. Actinoceras gracile D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.). Hormoceras? gracile Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 601 (gen. ref.). Black River (Watertown): Watertown, New York. Actinoceras hearsti Parks. Actinoceraa hearsti Parks, in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 37. Niagaran (Guelph): Severn River, Ontario. Actinoceras infelix (Billings). Orthoceras infelix Billings, Cat. Sil. FOSH. Anticosti, Geol. Surv. Canada, 1866, p. 57. Actinoceras (Orthoceras) infelix Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 272. Anticostian (Becsie River-Jupiter River): Southwest Point, Ariticosti. Actinoceras keewatinense Whiteaves. Actinoceras Keewatinense Whiteaves, Ann. Rep. Geol. Surv. Canada (n. s.), 14, App. F, 1904, p. 54; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, pp. 246, 263, pi. 30, figs. 7, 8. Niagaran: Rainy Island, Attawapiskat River and Ekwan River, Canada. Actinoceras latonummulatum (Foerste). Orthoceras (Actinoceras) lata-nummulatus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 285, pi. 8, fig. 4; Geol. Surv. Ohio, Pal. 7, 1893, p. 538, pi. 33, fig. 4. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. ACTINOCERAS LYONI Stokes. See Actinoceras bigsbyi. ACTINOCERAS LYONI Whiteaves. See Actinoceras richardsoni. Actinoceras (Deiroceras) python (Billings). Orthoceras python Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 335. Deiroceras python Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 273 (gen. ref.). Actinoceras (Deiroceras) python Whitea ves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 210. Trenton: Ottawa, Montreal and Lake Winnipeg, Canada. Actinoceras remotiseptum (Hall). Ormoceras remotiseptum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 181, pi. 4, fig. 3. (Doc. ed., p. 173). Actinoceras remotiseptum Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 782, pi. 54, figs. 1-3. Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 172. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 115. Hormoceras remotiseptum Clarke and Ruedemann, New York State Mus., Bull. 65, p. 602 (gen. ref.). Black River: Watertown, New York (Watertown); Cannon Falls, Minnesota (Platteville). Actinoceras richardsoni Stokes. Actinoceras Richardsonii Stokes, Proc. Geol. Soc. London, 2, p. 689 (nom. nud.); Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 708, pi. 59, figs. 2, 3. Castelnau, Essai Syst. Sil. 1'Amerique Septent, 1843, p. 30, pi. 7, figs. 1, 2; pi. 8, figs. 14 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Actlnoceras richardsoni Continued. 2a, b. Woodward, Man. Mollusca, pt. 2, 1851, p. 88, footnote, fig. 47. Barrande, Neues Jahrb. f. Min., "etc., 1855, p. 396, pi. 6, figs. 6, 7; Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 461, pi. B, figs. 6, 7. Foord, Cat. Foss. Ceph. Brit. Mue., pt. 1, 1888, p. 172. Miller, N. A. Geol. Pal., 1889, p. 431, text fig. 725. Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, p. 83, pi. 9, figs. 1, 2, 2a, 3, 4a; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 207. Orthoceras richardsoni Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 737, pi. 234. ?0rmoceras Brongniarti Owen, Geol. Rep. Wisconsin, Iowa, Minnesota, 1852, p. 181. Actinoceras Lyoni Whiteaves (not Stokes), Geol. Surv. Canada, Rep. Progr. 1878-79, 1880, pp. 460, and 48c of Appendix 1. Black River or Richmond : Lake Winnipeg, Canada. Actinoceras richardsoni magnum Parks. Actinoceras richardsoni var. magnum Parks in Tyrrell, 22nd Rep. Ontario Bur. Mines, 1913, p. 33. Mohawkian or Richmond: Shamattawa River, Manitoba. Actinoceras rotulatum (Billings). Orthoceras rotulatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 334. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 732, pi. 437, figs. 1-5. Niagaran: Head of Lake Temiscaming, Canada. Observation. Considered synonymous with A, backi (Stokes) by Foord (Cat. Foss. Ceph. British Mus., 1, 1888, p. 182). Actinoceras sedgwicki (Billings). Orthoceras Sedgwicki Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 320; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 22, 58 (loc. ref.). Richmond and Gamachian: West End, Gamachi Bay, etc., Anticosti. Actinoceras sphseroidale (Stokes). Huronia sphaeroidalis Stokes, Trans. Geol. Soc. London, 2d ser., 1, pt. 2, 1824, p. 203, pi. 28, fig. 5. Orthoceras (Huronia) sphaeroidale Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 742, pi. 232, fig. 3. Actinoceras sphaeroidale Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 186. Niagaran: Drummond Island, Lake Huron. Actinoceras tenuifllum (Hall). Onnoceras tenuifilum Hall, Pal. New York, 1, 1847, p. 222, pi. 58, figs. 2a-c; p. 55, pi. 15, figs, la-c; pi. 16, figs, la-e; pi. 17, figs, la, b. Saemann, Paleonto- graphica, 3, 1852, p. 142. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 398, 405. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72. Chap- man, Canadian Jour., n. s., 8, 1863, p. 20, fig. 129, p. 198, fig. 171; Expos. Min. Geol. Canada, 1864, p. 128, fig. 129, p. 170, fig. 171. Chamberlin, Geol. Wisconsin, 1, 1883, p. 158, fig. Lesley, Geol. Surv. Pennsylvania Rep. P. 4, 1889, p. 504, fig. Hormoceras tenuifilum Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 602 (gen. ref.) Actinoceras tenuifilum D'Orbigny, Prod. Pal., 1, 1849, p. 3 (gen. ref.). Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 115, fig. 1351, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 15 Actinoceras tenulfilum Continued. Orthoceras (Ormoceras) tenuifilum Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 754, pi. 237. Orthoceras tenuifilum James, Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 241. Black River: Watertown, Lowville, etc., New York (Watertown); Kentucky; Tennessee. Actinoceras tenulfllum distans (Hall). Ormoceras tenuifilum? var. distans Hall, Pal. New York, 1, 1847, p. 58, pi. 17, fig. 2. Black River (Watertown): Watertown, etc., New York. Actlnoceras turgidonummulatum (Foerste). Orthoceras (Actinoceras) turgido-nummulatus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 285, pi. 8, fig. 7; Geol. Surv. Ohio, Pal. 7, 1893, p. 538, pi. 33, fig. 7; pi. 35, figs. 1, 2. Upper Medinan (Brassfield) : Soldiers Home, near Dayton, Ohio Actinoceras vertebratum (Hall). Ormoceras vertebratum Hall, Pal. New York, 2, 1852, p. 94, pi. 29, fig. la-g. Lesley, Geol. Surv. Pennsylvania Rep., P 4, 1889, p. 504, figs. Orthoceras (Ormoceras) vertebratum Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 755, pi. 232, 237. Actinoceras vertebratum Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 185. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 528, fig. 1078. Lower Clinton: Reynale's Basin, New York. Actinoceras whitei (Stokes). Orthocerse - - Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 204, pi. 30, fig. 2. Ormoceras whitei Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 709. Actinoceras whitei Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 184. Orthoceras Backi Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 731, pi. 437, figs. 17, 18. Niagaran: Drummond Island, Lake Huron. Actinoceras youngi (Foerste). Orthoceras (Actinoceras) youngi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 284, pi. 8, fig. 3; Geol. Surv. Ohio, Pal., 7, 1893, p. 537, pi. 33, fig. 3; pi. 36, fig. 1. Upper Medinan (Brassfield): Hanover, Indiana; Dayton, Ohio. ACTINOCRINITES TENNESSEE.*; Troost. See Periechocrinus tennesseensis and P. dubius. ACTINOCRINITES vERNEuiLi Troost. See Melocrinus roemeri. ACTINOCRINUS CHRISTYI Hall. See Periechocrinus whitfieldi. ACTINOCRINUS MEEKI Lyon. See Macrostylocrinus meeki. ACTINOCRINUS OBPYRAMIDALIS Winchell and Marcy. See Melocrinus obpyramidalis. ACTINOCRINUS? PLUMOSUS Hall. See Glyptocrinus plumosus. ACTINOCRINUS POLYDACTYLUS Bonny. See Melocrinus pachydactylus. ACTINOCRINUS (SACCOCHINUS) SEMIRADIATUS Hall. See Macrostylocrinus semi- radiatus, 16 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ACTINOCRINUS SPECIOSUS Meek and Worthen. See Feriechocrinus speciosus. ACTINOCRINUS SUBCRASSUS Meek and Worthen. See locrinus snbcrassus. ACTINOCRINUS TENUIRADIATUS Hall. See Palseocystites tenuiradiatus. ACTINOCRINUS \VALDRONENSIS Shumard. See Periechocrinus whitfieldi. ACTINOCRIXUS WHITFIELDI Shumard. See Periechocrinus whitfieldi. ACTINODICTYON Parks. Genotype: A. canadense Parks. Actinodictyon Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909, p. 30. Actinodictyon canadense Parks. Actinodictyon canadense Parks, Univ. Toronto Studies, Geol. Ser. No. 0, 1909, p. 32, pi. 20, figs. 1, 2. Niagaran: Southampton Island, Hudson Bay, Canada. Actinodictyon keelei Parks. Actinodictyon keelei Parks, Univ. Toronto Studies, Geol. Ser. No. 5, 1909, p. 35, pi. 19, figs. 5, 6. Niagaran: Gravel River, Mackenzie District, Canada. Actinodictyon lowi Parks. Actinodictyon lowi Parks, Univ. Toronto Studies, Geol. Ser. No. 6, 1909, p. 33, pi. 20, figs. 3, 4. Niagaran: Southampton Island, Hudson Bay, Canada. Actinodictyon neptuni Parks. Actinodictyon neptuni Parks, Univ. Toronto Studies, Geol. Ser. No. 6, 1909, p. 34, pi. 20, figs. 5, 6. Niagaran: Southampton Island, Hudson Bay, Canada. ACTINODONTA Phillips. See Lyrodesma Conrad. ACTINOMYA Ulrich. See Whiteavesia Ulrich. ACTINOPTERIA Hall. Genotype: A. decussata Hall. Actinopteria Hall, Pal. New York, 5, pt. 1, Lam. (adv. copy), 1883, p. 3; ibid., 1884, p. xii; 35th Rep. New York State Mus. Nat. Hist., 1884, p. 406b; 1st Rep. State Geol. New York, 1884, p. 13. Miller, N. A. Geol. Pal., 1889, p. 459. Nettelroth, Kentucky, Foss. Shells, Geol. Surv. Kentucky, 1889, p. 229. Jackson, Mem. Boston Soc. Nat. Hist., 4, 1890, p. 386. Whidborne, Mon. Bev. Fauna South England, 2, Pal. Soc., 1892, p. 59. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 245. Clarke, Archiv. Mus. Nac. de Janeiro, 10, author's Eng. ed., 1900, p. 45. Hind, Mon. British Carb. Laniell., 2, Pal. Soc., 1901, p. 22. Actinopteria bella Williams. Actinopteria bella Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 342, pi. 30, figs. 17, 19. Silurian (Pembroke): Leighton Cove, Washington County, Maine. Cotypes.Czt. No. 58964, U.S.N.M. Actinopteria communis (Hall). Avicula communis Hall, Pal. New York, 3, 1859, p. 286, pi. 3, figs. 1-7; pi. 53, figs. 1, 4, 6. Actinopteria communis Clarke, Mem. New York State Mus., 3, No. 3, 1900, p. 34, pi. 4, figs. 1, 2. Weller, Pal. New Jersey, 3, 1903, p. 292, pi. 31, fig. 21. Ohern, Maryland Geol. Surv., Low. Dev., 1913, p. 455, pi. 76, figs. 2-4. Helderbergian: Helderberg Mountains, etc., New York; New Jersey; Cumber- land, Maryland (Keyser, etc.). BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 17 Actiiiopterla dispar Williams. Actinopteria dispar Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 343, pi. 30, figs. 20, 21. Silurian (Pembroke): Leighton Cove, Washington County, Maine. Cotypes. Cat. No. 58966, U.S.N.M. A< TINOPTERIA EMACERATA Whitfield and Hovcy. See Pterim-u emarorata. Actinopteria fornicata Williams. Actinopteria fornicata Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 343, pi. 30, figs. 14-16. Silurian (Pembroke): Youngs Cove, Washington County, Maine. Holotype.Czt. No. 58965, U.S.N.M. Actinopteria reticulata Weller. Actinopteria reticulata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 245, pi. 22, fig. 3. Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 459, pi. 76, fig. 6. Helderbergian : Near Tri States, New York (Decker Ferry) ; Keyser, West Virginia (Keyser). ACTINOSTOMA Young and Young. See Fenestella Lonsdale. ACTINOSTROMA Nicholson. Genotype: A. clathratum Nicholson. Actinostroma Nicholson, Mon. British Strom., Pal. Soc., 1886, p. 75. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 221. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 142. Zittel-Eastman Textb. Pal., 1, 1900, p. 112; 2d ed., 1913, p. 122. Actinostroma franklineuso Parks. Clathrodictyon franklinense Ami., Cruise of the "Neptune," 1906, p. 329 (nom. mid.). Actinostroma franklinense Parks, Univ. Toronto Studies, Geol. Ser. No. 6, 1909, p. 27, pi. 19, figs. 3, 4. Niagaran: Beechy Island, Lancaster Sound, Canada. ACTINOSTROMA INFLECTUM Parks. See Actinostroma tenuifilatuni inflectum. Actinostroma matutinum Nicholson. Actinostroma matutinum Nicholson, Ann. Mag. Nat. Hist., 6th ser., 7, 1891, p. 322, pi. 9, figs. 1, 2. Whiteaves, Canadian Bee. Sci., 7, 1895, p. 134. Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 14. Silurian: L'Anse au Gascon, Baie de Chaleur, Quebec. Actinostroma tenuifilatum Parks. Actinostroma tenuifilatum Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 10, pi. 9, figs. 1-3; Ibid., No. 6, 1909, p. 25. Niagaran: Ann Arbor, Michigan (drift); Drummonds Island, Lake Huron, I'agwa- chuan River, and Southampton Island, Hudson Bay, Canada. Cotypes.C&t. Nos. 36828, 36829, U.S.N.M. Actinostroma tenuifilatum cylindricum Parks. Actinostroma tenuifilatum var. cylindricum Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909, p. 26. Niagaran: Southampton Island, Hudson Bay, Canada. Actinostroma tenuifilatum inflectum Parks. Actinostroma inflectum Parks, Ottawa Nat., 22, 1898, p. 27; Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 11. 84243 Bull. 9215 2 18 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Actinostroma tenuifilatum in flee turn Continued. Actinoslroraa tenuifilatum var. inflectum, Parks, Univ. Toronto Studies, Geol. Ser. No. 6, 1909, p. 25, pi. 19, figs. 1 and 2. Niagaran: Pagwachuan River and Little Current River, Canada. Actlnostroma tenuissimum Parks. Actiiiostroma tenuissimum Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909, p. 42, pi. 18, figs. 2, 3, 9, and 12. ( ;iyugan (Cobleskill) : Schoharie County, New York. Actinostroma? trentonense Ulrich and Everett. Actinostroma? trentonense Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 282, pi. 7, figs. 3a, b. Black River (Platteville): Near Dixon, Illinois. Sections oiholotype.Vat. No. 46545 U.S.N.M. ACTLNOSTROMA TRENTONENSIS Weller. See Solenopora compacta. Actinostroma vulcana Parks. Actinostroma vulcana Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 10, pi. 1, figs. 1, 2, 5. Niagaran (Guelph): Durham, Ontario. Actinostroma whiteavesi niagarense Parks. Actinostroma whiteavesii var. niagarense Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 11, pi. 12, figs. 4-5. Niagaran (Lockport): Thorold, Ontario. J3CHMINA Jones and Holl. Genotype: A. cuspidata Jones and Holl. ^chmina Jones and Holl, Ann. Mag. Nat. Hist., 4th eer., 3, 1869, p. 217. Zittel, Handb. Pal., 2, 1885, p. 557. Vogdes, Ann. New York Acad. Sci., 5, 1889, p. 4, pi. 2, fig. 6. Miller, N. A. Geol. Pal., 1st App., 1892, p. 704. Koken, Die Leitfossilien, Leipzig, 1896, p. 40. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 308. Ulrich, Zittel-Eastman Textb., Pal., 1, 1900, p. 644. Grabau, Bull. New York State Mus., 45, 9, 1901, p. 220; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 220. -Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 345. Bassler, Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 738. abnormis Ulrich. JSchmina abnormis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 183, pi. 12, figs. 7a, 7b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346, fig. 1660, h-j. Clinton (Rochester): Lockport, etc. New York, Maryland, etc. Holotype.C&t. No. 41372, U.S.N.M. .ECHMINA BYRNESI Jones. See Dicranella? byrnesi. .'Echmina spinosa (Hall). Cytherina spinosa Hall, Pal. New York, 2, 1852, p. 317, pi. 67, figs. 17-21. Beyrichia spinosa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80 (gen. ref.). 2Echmina spinosa Jones and Holl, Ann. Mag. Nat. Hist., 4th ser., 3, 1869, p. 218 (gen. ref.). Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 11, pi. 13, figs. 4-8. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 220, fig. 152; Bull. New York State Mus., 45, No. 9, 1901, p. 220, fig. 152. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 345, fig. 1659. Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario; Pennsylvania; Maryland. BIBLIOGRAPHIC LIST OF ,GENERA AND SPECIES. 10 JSgilopeliall. Genotype: JE. subcarinata Hall. ^Egilops Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 179 (doc. ed., p. 171). JSgilops Kiibrurinata Hall. JSgilops subrarinata Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 179, pi. 4., figs, la, b (doc. ed., p. 171). Trenton: Near Lowville, Lewie County, New York. Observation. Not recognized. Founded on cast of undetermined pelecypod. Burmeister. See Proetus Steininger. s Bather. See ^siocystites Miller and Gurley. J3SIOCYSTITES Miller and Gurley. Genotype: A. priscus Miller and Gurley. jEsiocystites Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 13. Miller, N. A. Geol. Pal., 2d App., 1897, p. 732. jEsiocystis Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 208. JSsiocystites priscus Miller and Gurley. ^Esiocystites priscus Miller and Gurley, Bull. Illinois State Mus., 5, 1894, p. 14, pi. 2, figs. 10-12. Miller, N. A. Geol and Pal., 2d App., 1897, p. 732, text fig. 1281. Trenton (Curdeville) : Mercer County, Kentucky. jETHOCYSTITES Miller. Genotype: M. eculptus Miller. JJthocystites Miller, N. A. Geol. Pal., 1st App., 1892, p. 673; 18th Ann. Rep. Indiana Dep. Geol. Nat Res., 1894, p. 263. (Adv. sheets, 1892, p. 9.) Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 57. J3thocystites sculptus Miller. ^thocystites sculptus Miller, N. A. Geol. Pal., 1st App., 1892, p. 673, fig. 1207; 18th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1894, p. 264, pi. 2, fig. 2. (Advance sheets, 1892, p. 10, pi. 2, fig. 2.) Niagaran (Laurel): St. Paul, Indiana. AGARICIA SWINDERNANA Goldfuss. See Thecia swindernana. AGELACRINITES Vanuxem. Genotype: A. hamiltonensis Vanuxem. Agelacrinites Vanuxem, Geol. Surv. New York, 3d dist., 1842, p. 158. Beyrich, Neues Jahrb. f, Min., etc., 1846, p. 192. Forbes, Mem. Geol. Surv. Great Britain, 2, pt. 2, 1848, p. 519. Hall, Pal. New York, 2, 1852, p. 236 footnote. Billings, Canadian Jour., 2, 1854, p. 271. Chapman, Canadian Jour., n. a., 5, 1860, p. 358, 361; Ann. Mag. Nat. Hist., 3d ser., 6, 1860, p. 159; Expos. Min. Geol. Canada, 1864, p. 110. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 53 (footnote). Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 290; 2d ed. 1881, p. 481. Barrande and Waagen, Syst. Sil. du Centre Boheme, 7, pt. 1, 1887, p. 83, pi. 37. Jaekel, Stammesges. Pelmat., 1, 1899, p. 49. Zittel, Grundzuge Pal., 1, 1910, p. 182. Agelacrinus Pictet, Traite de Pal. 2d ed., 4, 1857, p. 305. Hall, Pal. New York, 3, 1859 (1861), p. 152. Zittel, Handb. Pal., 1, 1879, p. 414. Stiirtz, Neues Jahrb. f. Min., 2, 1886, p. 144. Miller, N. A. Geol. Pal., 1889, p. 221. Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 207, fig. 3. Clarke, Bull. New York State Mus., 49, 1901 (1902), p. 184. Haeckel, Amphorideen u. Cystoideen, 1896, p. 112. Grabati and Shimer, N. A. Index Fossils, 2, 1910, p. 472. Springer, Zittel-Eastman Textb. Pal. 1, 1913, p. 169. Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 399. Agelacilnus (Agelacrinites) Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 353. Agelacystts Haeckel, Amphorideen u. Cystoideen, 1890, p. 114. 20 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Agelacrinites austini (Foerste). Agelacrinus austini Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 444, pi. 6, fig. 1. Richmond (Whitewater): Four and one-half miles northwest Wilmington, Ohio. AGELACRINITES (EDRIO ASTER) BIGSBYI Chapman. See Edrioaster bigsbyi. AGELACRINITES BILLINGSI Chapman. See Hemicystites billingsi. Agelacrinites cincinnatiensis (Roemer). Agelacrinus Cincinnatiensis Roemer, Verhdl. Nat. Hist. Ver. preuss. Rheinland, 8, 1851, p. 372, pi. 8, fig. 3. Bronn, Leth. geog., 3d ed., 2, 1855, p. 277, pi. 4, fig. 6. Hall, Desc. n. sp. Crin., etc., 1886, p. 6. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 3, fig. 16. Zittel, Handb. Pal., 1, 1879, p. 414, fig. 291. Miller, N. A., Geol. Pal., 1889, p. 222, fig. 241. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 476, pi. 1, fig. 6. Agelacrinus (Lepidodiscus) Cincinnatiensis Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 214, pi. 6, fig. 7; Desc. n. sp. fossils, Cincinnati, Ohio, 1871, photographic pi. 2, fig. 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 472, fig. 1784b. Lepidodiscus cincinnatiensis Sharman and Newton, Quart. Jour. Geol. Soc. London, 48, 1892, p. 151. Haeckel, Amphorideen u. Cystoideen, 1896, p. 113, fig. 16. Bather, Treatise on Zool., pt. 3, Echinoderma, 1900, p. 207, fig. 4. Agelacrinites (Lepidodiscus) Cincinnatiensis Meek, Geol. Surv. Ohio, Pal. 1, pt. 2, 1873, p. 55, pi. 3, fig. 6a, b. Agelacrinites ciricinnatiensis Jaekel, Stamm. Pelmat., 1, Thecoidea, u. Cyetoidea, Berlin, 1899, p. 50, pi. 2, fig. 1. Clarke, Bull. New York State Mus., 49, 1901, p. 185. Maysville (Fairmount-Corryville) : Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Tennessee. Agelacrinites dicksoni Billings. Agelacrinites dicksoni Billings, Rep. Progress 1853-56, Geol. Surv. Canada, 1857, p. 294; Canadian Org. Rem., dec. 3, Geol. Surv. Canada, 1858, p. 84, pi. 8, fig. 3, 3a, 4, 4a. Chapman, Expos. Min. Geol. Canada, 1864, p. 110. Grant, Trans. Ottawa Field Nat. Club, 1, No. 2, 1881, fig. 9. Jaekel, Stamm. Pelmat. 1, Thecoidea u. Cystoidea, 1899, p. 50, pi. 2, fig. 2. Clarke, Bull. New York State Mus. 49, 1901, p. 191, fig. 3. Agelacrinus Dicksoni Haeckel, Amphorideen u. Cystoideen, 1896, pi. 3, fig. 29. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 44 (loc. occ.). Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. Agelacrinites faberi (Miller). Agelacrinus faberi Miller, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 156, pi. 8, figs. 24, 25. Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 441, pi. 1, fig. 3, pi. 3, fig. 4. Lepidodiscus faberi Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 728, pi. 4, fig. 11. Richmond (Whitewater) : Between Osgood and Versailles, Indiana. Agelacrinites holbrooki (James). Agelacrinus Holbrooki James, Paleontologist, No. 1, 1878, p. 2; Jour. Cincinnati Soc. Nat. Hist., 10, 1897, p. 25, figs. A, B. Foerste, Bull. Sci. Lab. Denisoi Univ., 17, 1914, p. 446, pi. 1, fig. 1, pi. 4, fig. 1. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 21 Agelacrinites holbrookl Continued. Agelacrinites Holbrooki Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1889, p. 50. Olarke, Bull. New York State Mus., 49, 1901, p. 189, fig. 2. Maysville(?Corryvile): Near Lebanon (Morrow), Ohio. Plesiotype. Cat. No. 40744, U.S.N.M. Agelacrinites pilcus (Hall). Agelacriuus (Lepidodiscus) pileus Hall., 24th Rep. New York State Cab. Nat. Hist., 1872, p. 214, pi. 6, figs. 8-10 (Adv. publication, 1866). Lepidodiscus pileus SladtMi, Quart. Jour. Geol. Soc. London, 1879, p. 750. Agelaerimis pileua Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 85, pi. 1, fig. 10. Foerste, Bull. Sci. Lai). Denison Univ., 17, 1914, p. 482, pi. 2, figs. 1-4. Agelacrinites pileus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 56, pi. 3, fig. 5. Jaekel, Stammes, Pelmatozoen, 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 50, fig. 10, pi. 1, fig. 6. Maysville (Fairmount-Corryville): Cincinnati, Ohio, and vicinity. AGELACRINITES SEPTEMBRACHIATUS Jaekel. See Streptaster septembrachiatus. Agelacrinites vetustus (Foerste). Agelacrinus vetustus Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 439. Trenton (Cynthiana): Clays Ferry, Kentucky. AGELACRINITES VORTICELLATA Meek. See Streptaster vorticellatus. Agelacrinites warrenensis (James). Agelacrinus warrenensis James, Paleontologist, No. 7, 1883, p. 58, pi. 2, figs. 3, 3a. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 448, pi. 1, fig. 4. Maysville (Fainnoimt): Morrow, Ohio. Observation. Poorly defined and figured. Probably young specimens of A. cincinnatiensis. AGELACRINUS of authors. See Agelacrinites Vanuxem. AGELACRINUS BIGSBYI Schmidt. See Edrioaster bigsbyi. AGELACRINUS BILLINGSI Chapman. See Hemicystites billingsi. AGELACRINUS CINCINNATIENSIS of authors. See Agelacrinites cincinnatiensis. AGELACRINUS DICKSONI Hseckel. See Agelacrinites dicksoni AGELACRINUS FABERI Miller. See Agelacrinites faberi. AGELACRINUS HOLBROOKI James. See Agelacrinites holbrooki. AGELACRINUS PARASITICA Hall. See Hemicystites parasiticus. AGELACRINUS PILEUS of authors. See Agelacrinites pileus. AGELACRINUS SEPTEMBRACHIATUS Miller and Dyer. See Streptaster septembrachi- atus. AGELACRINUS (HEMICYSTITES) STELLATUS Hall. See Hemicystites stellatus. AGELACRINUS VORTICELLATA Hall. See Streptaster vorticellatus. AGELACRINUS WARRENENSIS James. See Agelacrinites warrenensis. AGELACYSTIS Hseckel. See Agelacrinites Vanuxem. 22 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. AGNOSTUS Brongniart. Genotype: Entomolitus paradoxus pisiformis Linnaeus. Agnostus Brongniart, Hist. Crust. Foss., 1822, p. 38. DeKay, Ann. Lyceum Xat, Hist. New York, 1, 1824, p. 176, -footnote. Green, Mon. Tril. N. A., 1832, p. 17. Murchison, Sil. Syst, 1839, p. 664. Edwards, Hist. Nat. d. Crus- tacea, 3, 1840, p. 347. Goldfuss, Neues Jahrb. f. Min., etc., 1843, p. 541. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 526. Salter, Mem. Geol. Surv. United Kingdom, dec. 11, 1864, pi. 1. Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 296 (ibid., 2d ed., 1881, p. 488). BrSgger, Nyt Mag. for Naturvid., 24, 1877, p. 61. Angelin, Tal. Scandinavica, 3d ed., Holmise, 1878, p. 5. Tullberg, Sveriges, Geol. tinders., Ser. C, No. 42, 1880, p. 11. Zittel, Handb. Pal., 2, 1885, p. 592. Matthew, Trans. Royal Soc. Canada, 3, sec. 4, 1886, p. 67. Miller, N. A. Geol. Pal., 1889, p. 526. Vogdes, Amer. Geol., 9, 1892, pp. 377-383; Cal. Acad. Sci., Occ. Papers, 4, 1893, p. 262. Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143; Amer. Geol., 16, 1895, p. 175. Matthew, Trans. New York Acad. Sci., 15, 1896, p. 207. Koken, Die Leitfossilien, Leipzig, 1896, p. 14, fig. 6. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 104, 183, pi. 3, fig. 9. Matthew, Trans. Royal Soc. Canada, 2d ser. 3, sec. 4, 1897, p. 170. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 10, 37, pi. 1, fig. 7. Matthew, Amer. Geol., 27, 1901, p. 56. Gronwall, Danmarks Geol. Unders., 2, Rsekke, No. 13, 1902, p. 46. Jaekel, Zeit. d, Deutsch. Geol. Gesell., 61, 1909, p. 380. Raymond, Zittel- Eastman Textb. Pal., 1913, p. 710. Agnostus acadicus declivus Matthew. Agnostus Acadicus var. declivis Matthew, Trans. Royal Soc. Canada, 3, sec. 4, 1886, p. 70, pi. 7, figs. 6a, b. Vogdes, Amer. Geol., 9, 1892, p. 387, pi. 9, fig. 8. Matthew, Trans. New York Acad. Sci., 15, 1896, p. 219, pi. 15, figs, lla-d. Agnostus cf. declivis Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 223. Canadian (Bretonian Div. C. 3b): McNeil Brook, Cape Breton, Nova Scotia. Agnostus americanus Billings. Agnostus Americanus Billings, Canadian Nat. Geol., 5, 1860, p. 302, fig. 1 a, b; Geol. Canada, Geol. Surv. Canada, 1863, p. 233, figs. 250 a, b; Pal. Foss. 1, Geol. Surv. Canada, 1865, p. 395, fig. 372 a, b. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 298. Ozarkian? (Levis erratic): Point Levis, Quebec. Agnostus bisectus Matthew. Agnostus bisectus Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 50, pi. 13, figs. 2 a, b. Canadian (Bretonian Div. C. 3b): Navy Island, St. John, New Brunswick. Agnostus bolivianus Hoek. Agnostus bolivianus Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 212, pi. 7, fig. 6. Lowest Ordovician: Salitre, Bolivia- Argentina boundary. Agnostus canadensis Billings. Agnostus Canadensis Billings, Canadian Nat. Geol., 5, 1860, p. 304, fig. 3 a, b; Geol. Canada, Geol. Surv. Canada, 1863, p. 233, fig. 252 a, b; Pal. Fos., 1, Geol. Surv. Canada, 1865, p. 397, fig. 374 a, b. Brogger, Geol. Foren. Stock- holm Forhandl., 8, 1886, p. 207. Vogdes, Amer. Geol., 9, 1892, p. 390, pi 9, fig. 9. Ozarkian? (Levis erratic): Point Levis, Quebec. BIBLIOGRAPHIC UST OF GENERA AND SPECIES. 23 Agnostus communls Hall and Whitfield. Agnostus communis Hall and Whitfield, U. S. Geol. Expl. 40th Parl., 4, 1877, p. 228, pi. 1, figs. 28, 29. Walcott, Mono. U. S. Geol. Surv., 8, 1884, p. 27. Brogger, Geol. Foren. Stockholm Forhandl., 8, 1886, p. 207. Vogdes, Amer- Geol., 9, 1892, p. 390, pi. 9, fig. 15. Cambrian and ?Ordovician (Pogonip): White Pine and Eureka Districts, Nevada. AC-NOSTUS CYCLOPYGE Tullberg. See Lejopyge cyclopyge. Agnostus fabius Billings. Agnostus Fabius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 298, text fig. 289. Vogdes, Amer. Geol., 9, 1892, p. 396, pi. 9, fig. 10. Chazyan (Quebec N, P) : Table Head, Pistolet Bay and four miles northeast Port, land Creek, Newfoundland. AGNOSTUS GALBA Billings. See Arthrorrachis galba. AGNOSTUS LATUS VAnuxem. See Beyrichia lata. Agnostus orion Billings. Agnostus Orion Billings, Canadian Nat. Geol., 5, 1860, p. 304, fig. 2; Geol. Canada, Geol. Surv. Canada, 1863, p. 233, fig. 251. Shumard, Trans. Acad. Sci. St. Louis, 2, 1863, p. 105. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 397, fig. 373. Vogdes, Amer. Geol., 9, 1893, p. 391, pi. 9, fig. 12. Ozarkian? (Le vis-erratic): Point Levis, Quebec. Agnostus pisiformis (Linnaeus). Entomolithus paradoxus pisiformis Linnaeus, Inter Scan., 1757, p. 122. Agnostus pisiformis Brongniart, Crust, foss., 1822, p. 38. Roemer, Leth. geog., 1. Leth. Pal., Atlas, 1876, pi. 1, fig. 2a. Tullberg, Sveriges Geol. Unders., Ser. C, No. 42, 1880, p. 25, pi. 2, fig. 14. Salter, Mem. Geol. Surv. Great Britain, 2d ed., 1881, p. 489. Brogger, Die sil. Etagen 2-3, Kristiania, 1882, p. 55 (cites bibliography). Wallerius, Unders, Zonen med Agnostus Isevi- gatus i Vestergotland, Lund, 1895, p. 43. Koken, Die Leitfossilien, Leipzig, 1896, p. 11, fig. 6; p. 347, fig. 242, 1. Agnostus pisiformis var. Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 59, pi. 13, fig. la, b; ibid., 1898, p. 138, pi. 2, figs. la-c. Lower Ordovician : Europe. Canadian (Bretonian Div. C3a): Long Island, Kennebecasis River, New Bruns- wick. Agnostus pisiformis afflnis Matthew. Agnostus pisiformis mut. affinis Matthew, Trans. Royal Soc. Canada, 2d ser., 4, sec. 4, 1898, p. 137, pi. 2, fig. 3. Canadian (Bretonian Div. C 3a): Kennebecasis Valley, New Brunswick. Agnostus pisiformis rugulosus Matthew. Agnostus pisiformis mut. rugulosus Matthew, Trans. Royal Soc. Canada, 2d ser. 4, sec. 4, 1898, p. 137, pi. 2, fig. 2. Canadian (Bretonian Div. C 3a): Kennebecasis Valley, New Brunswick. Agnostus pisiformis validus Matthew. Agnostus pisiformis mut. valida Matthew, Trans. Royal Soo. Canada, 2d ser., 4, sec. 4, 1898, p. 137. Canadian (Bretonian Div. C 3a): Kennebecasis Valley, New Brunswick. 24 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Aguostus sitlenbladhi Linnarsson. Agnostus Sidenbladhi Linnarsson, Vesterg. Cambr., etc., 1869, p. 82, pi. 2, figs. 60, 61 (K. Sv. Vet. Akad. HandJ.); Ofvers. K. Vet.-Akad. Forhandl., 26, 1869, p. 195. Brogger, Die Sil. Etageft 2-3, Kristiania, 1882, p. 56 (cites bib- liography). Canadian: Europe; Point Levis, Quebec (Levis-Diplograptus dentatus zone) [Raymond]. Agnostus trisectus Salter. Agnostus trisectus Salter, Mem. Geol. Surv.,.dec. 13, 1864, p. 10. pi. 1, fig.ll. Belt, Geol. Mag., 5, 1868, p. 11. Salter, Cat. Camb. Sil. Foss., 1873, p. 10. Linnarsson, Geol. For. Stockholm Forhandl., 5, 1880, p. 157, p. 6, fig. 16. Tullberg, Sveriges Geol. Unders., Ser. C, No. 42, 1880, p. 24, pi. 1, fig. 13. Linnarsson, ibid., No. 43, 1880, p. 27, pi. 2, fig. 16. Matthew, Trans. Royal Soc., Canada, 11, sec. 4, 1894, p. 110. Groom, Quart. Jour. Geol. Soc., London, 58, 1902, p. 119. Lower Ordovician: Europe. Canadian (Bretonian Div. C 3b): McNeil Brook, Cape Breton, Nova Scotia. Agnostus trisectus germanus Matthew. Agnostus trisectus mut. germanus Matthew, Bull. Nat. Hist. Soc. New Bruns- wick, No. 19, 1901, p. 279; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 221. Canadian (Bretonian Div. C 3b): East Bay, east of Bras d'Or Lake, Cape Breton, Nova Scotia. Agnostus trisectus ponepunctus Matthew. Agnostus trisectus mut. ponepunctus Matthew, Bull. Nat. Hist. Soc. New Bruns- wick, No. 19, 1901, p. 278, pi. 5, fig. 8a-c; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 220, pi. 17, figs. 8a-c. Canadian (Bretonian Div. C 3b): McAdam shore, East Bay, Bras d'Or Lake, Cape Breton, Nova Scotia. AGNOSTUS TUBERCULATUS Quenstedt. See Beyrichia tuberculata. Agnostus tumidosus Hall and Whitfield. Agnostus tumidosus Hall and Whitfield, U. S. Geol. Expl. 40th Parl., 4, 1877, p. 231, pi. 1, fig. 32. Brogger, Geol. Foren Stockholm Forhandl., 8, 1886, p. 204. Vogdes, Amer. Geol., 9, 1892, p. 393, pi. 10, fig. 8. Walcott, Mono. U. S. Geol. Surv., 32, pt. 2, 1899, p. 455, pi. 63, figs. 5, 5a. Cambrian and ?Ordovician (Pogonip): Eureka District, Nevada. AGRAULOS CYLINDRICUS Miller. See Arionellus cylindricus. AGRAULOS OWENI Meek and Hayden. See Ptychoparia oweni. AGRAULOS (ARIONELLUS) PUSTULATUS Vogdes. See Glaphurus pustulatus. AGRAULOS SARATOGENSIS Walcott. See Plethopeltis saratogensis. ALECTO Lamouroux. See Stomatopora Bronn. ALECTO AULOPOROIDES Nicholson. See Proboscina auloporoides. ALECTO CONFUSA Nicholson. See Proboscina confusa. ALECTO PRONDOSA Nicholson. See Proboscina frondosa. ALECTA INFLATA Hall. See ( 'orynotrypa inflata. BIBI.TOiiH A I'll 1C LIST OF 'GENERA AND SPECIES. 25 ALECTO NEXILIS James. See Batostoma implicatum. ALEPIDASTER Meek. Genotype: Protaster? granuliferus Meek. Alepidaster Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 275; Geol. Surv. Ohio, Pal., 1, 1873, p. 68. Schuchert, Bull. U. S. Nat. Mus., 88, 1915, p. 228. Protasterina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 95 James, ibid., 18, 1895, p. 139. (Genotype: P. fimbriata Ulrich). Alepidaster flmbriatus (Ulrich). Protasterina (Protaster) fimbriata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, ],. <)f>, pi. 4, figs. 9, 9a, 9b, 9c. Protasterina fimbriata James, ibid., 18, 1895, p. 139. Eden (Economy): Covington, Kentucky. Alepidaster flexuosus (Miller and Dyer). Protaster flexuosus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 31, pi. 2, figs. 1, la. Miller, N. A. Geol. Pal., 1889, p. 276, fig. 409. Parks, Trans. Canadian Inst., 8, 1908, p. 368. Protasterina flexuosa James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 140. Alepidaster flexuosus Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 11; Bull. U. S. Nat. Mus., 88, 1915, p. 231, pi. 36, fig. 4. Maysville: Cincinnati, Ohio. Alepidaster granuliferus (Meek). Protaster? granuliferus Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 274; Geol. Surv. Ohio, Pal., 1, 1873, p. 68, pi. 3 bis., figs. 8a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 775, figs. James, Jour. Cincinnati Soc. Nat. Hist., 23, 1896, p. 138. Parks, Trans. Canadian Inst., 8, 1908, p. 368. Taeniaster granuliferus Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 733, pi. 3, fig. 7. Alepidaster granuliferus Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 11; Bull. U. S. Nat. Mus., 88, 1915, p. 230, fig. 26. Richmond: Moore's Hill, Indiana. Alepidaster miamiensis (Miller). Protaster miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1872, p. 116, pi. 5, figs. 6, 6a, 6b. James, ibid., 18, 1895, p. 138. Parks, Trans. Canadian Inst., 8, 1908, p. 368. Alepidaster miamiensis Schuchert, in Freeh, Foss. Cat., 1, pt. 3, 1914, p. 11; Bull. U. S. Nat. Mus., 88, 1915, p. 233. Richmond (Waynesville or Liberty) : Near Waynesville, Ohio. Cotypes. Cat. No. 40886, U.S.N.M. ALLOCRINTJS Wachsmuth and Springer. Genotype: A. typus Wachsmuth and Springer. Allocrinus Wachsmuth and Springer in Miller, N. A. Geol. Pal., 1889, p. 222; Geol. Surv. Illinois, 8, 1890, p. 206; Proc. Acad. Nat. Sci. Philadelphia, 1890, p. 376; Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 306. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 162. Wachsmuth, Zittel- Eastman Textb. Pal., 1, 1900, p. 148. Zittel, Grundzuge Pal., 1, 1910, p. 162. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 191. Allocrinus benedicti Miller. Allocrinus benedicti Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 647, pi. 7, fig. 1 (Adv. sheets, 1891, p. 37); N. A. Geol. Pal., 1st App., 1892, p. 674, fig. 1210. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 308, pi. 24, fig. 8a, b. Niagaran (Laurel): St. Paul, Indiana. 26 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Allocrinus typus Wachsmuth and Springer. Allocrinus typus Wachsmuth and Springer, Geol. Surv. Illinois, 8, 1890, p. 207, pi. 14, figs. 7, 7a, b; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 307, pi. 24, fig. 7a, b. Niagaran (Brownsport): Wayne and Decatur Counties, Tennessee. ALLOCYSTITES Miller. Genotype: A. hammelli Miller. Allocystites Miller, N. A. Geol. Pal., 1889, p. 222. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 398. Zittel, Grundzuge Pal., 1, 1910, p.- 72. Allocystites hammelli Miller. Allocystites hammelli Miller, N. A. Geol. Pal., 1889, p. 222, fig. 242. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 398. Clinton (Osgood) : Jefferson County, Indiana. ALLODESMA Ulrich. Genotype: Modiolopsis subelliptica Ulrich. Modiolopsis (part) Ulrich, 19th Ann. Rep. Geol. and Nat. Hist Surv. Minnesota, 1892, p. 226. Allodesma Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 617. Dall, Zittel-Eaatman Textb. Pal., 1, 1900, p. 393; ibid., 2d ed., 1913, p. 470. Allodesma subellipticum (Ulrich). Modiolopsis subelliptica Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv., Minne- sota, 1892, p. 226, fig. 12. Allodesma subellipticum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 617, pi. 42, figs. 9-14. Ruedemann, Bull. New York State Mus., 162, 1912, p. 103, pi. 6, fig. 11. Trenton: Near Cannon Falls, Minnesota (Prosser); Canajoharie, New York (Cana- joharie). Holotype and plesiotype.C&t. No. 46078, U.S.N.M. ALLONEMA Ulrich and Bassler. Genotype: A. botelloides Ulrich and Bassler. Allonema Ulrich and Bassler, Smith. Misc. Coll. (Quart. Issue), 45, 1904, p. 276-279. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 12. Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 118. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 318. Allonema waldronense Ulrich and Bassler. Allonema waldronense Ulrich and Bassler, Smith. Misc. Coll. (Quart. Issue), 45, 1904, p. 283, pi. 67, fig. 5. Bassler, Bull. U. S. Geol. Survey, 292, 1906, p. 13, pi. 4, fig. 9. Niagaran: Waldron, Indiana (Waldron); Middleport, New York (Rochester). Holotype. Cat. No. 43128, U.S.N.M. ALLONYCHIA Ulrich. Genotype: Ambonychia (Megambonia) jamesi Meek. Megambonia Meek (not Hall, 1859), Proc. Acad. Nat. Sci., Philadelphia, 1872, p. 321. Allonychia Ulrich, Geol. Surv. Ohio, 7, 1893, p. 640. Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res. Indiana, 1908, p. 978. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432. Allonychia flanaganensis Foerste. Allonychia flanaganensis Foerste Bull. Sci. Lab. Denison Univ. 17, 1912, p. 30; Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 134, pi. 2, fig. 1. Trenton (Cynthiana): Flanagan, etc., Kentucky. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 27 Allonychla jamesi (Meek). Megambonia jamesi Meek, Puoc. Acad. Nat. Sci. Philadelphia, 1872, p. 321; Geol. Surv. Ohio, Pal. 1, 1873, p. 136, pi. 12, figs. 9a, b. Miller, Cincinnati Quart. Jour. Sci., 1, 1873, p. 13; ibid. 1874, p. 225. Ambonycliia jamesi Miller, N. A. Geol. Pal., 1889, p. 460 (gen. ref.) Allonychia jameei Ulrich, Geol. Surv. Ohio, 7, 1893, p. 641, pi. 48, fig. 7. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 986, pi. 43, fig. 2. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432. Maysville (Corryville): Cincinnati, Ohio, and vicinity. Plesiolype. Cat. No. 46079, U.S.N.M. Allonychia ovata Ulrich. Allonychia ovata Ulrich, Geol. Surv. Ohio, 7, 1S93, p. 641, pi. 48, figs. 4-6. Maysville (Fairmount): Covington, Kentucky. Holotype.V*t. No. 46080 U.S.N.M. Allonychia subrotunda Ulrich. Allonychia subrotunda Ulrich, Geol. Surv. Ohio, 7, 1893, p. 642, pi. 48, figs. 8, 9. Maysville (Corryville): Cincinnati, Ohio. Holotype.CsLt. No. 46081, U.S.N.M. ALVEOLITES Lamarck. Genotype: A. suborbicularis Lamarck. Alveolites Lamarck, Syst. des Anim. sans. Vert., 1801, p. 375. Steininger, Mem. Soc. Geol. France, 1, 1834, p. 333. Koninck, Desc. Animaux Fossiles, Leige, 1842, p. 11. Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, Zoophytes, 1846, p. 537. Edwards and Haime, Compt. Rend. 1'Acad. Sci., 29, 1849. p. 260. King, Mon. Permian Foss. England, Pal. Soc., 1850, p. 29. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist., 5), 1851, p. 153; McCoy, British Pal. Rocks Foss., 1854, p. 68. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 442. Billings, Canadian Jour., n. s., 4, 1858, p. 114. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 263. Rominger, Amer. Jour. Sci. and Arts, 2d ser., 34, 1862, p. 390. Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 132. Salter, Cat. Camb. Sil. Foss., 1873, p. 106. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 53; Geol. Mag., dec. 2, 1, 1874, p. 14. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 40. Nicholson, Trans. Royal Soc. Edinburgh, 27, 1876, p. 247. Nicholson and Etheridge, Jour. Linnean Soc. London, Zool., 13, 1877, p. 353, 354. Nichol- son, Tab. Corals, 1879, p. 117. Zittel, Handb. Pal., 1, 1880, p. 618. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 441. Hall and Simpson, Pal. New York 6, 1887, p. xiii. Nicholson, Geol. Mag., dec. 3, 5, 1888, p. 107. Miller, N. A. Geol. Pal., 1889, p. 170. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 20. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 4, 1893, pp. 147, 148. Sardeson, Neues Jahrb. Min., Geol., Pal., Beilage-Band, 10, 1896, p. 315. Zittel-Eastman Textb. Pal., 1, 1900, p. 100. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 266. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 91. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 114. Alveolites? arc tic us Woodward. Alveolites? arctica Woodward, Geol. Mag., dec. 2, 5, 1878, p. 289, pi. 10, fig. 7. Niagaran: Beechy Island, Arctic America. ALVEOLITES EXPANSA James. See Ceramopora? expanaa. ALVEOLITES EXSUL Hall. See Lioclema? exsul. Alveolites flbrosus Davis. Alveolites fibrosus Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 46, fig. 8. Niagaran (Louisville): Near Louisville, Kentucky. 28 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ALVEOLITES GRANULOSUS James. See Stromatocerium huronensis. ALVEOLITES HEMISPHERICUS D'Orbigny. Alveolites liemispherica D'Orbigny, Prodr. Pal., 1, 1849, p. 49. Boule and Thevenin, Ann. Pal., 1, 1906, p. 8, pi. 4, figs. 1-4. Silurian(?): Falls of the Ohio. Observation. The figures given by Boule and Thevenin refer to a Devonian species. Alveolites Inornatus Foerste. Alveolitesinornat.ua Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 103, pi. 3, fig. 56. Niagaran (Brownsport) : East of Linden, Tennessee. ALVEOLITES IRREGULARIS Whitfield. See Ceramoporella? irregularis. Alveolites labechei Edwards and Haime. Alveolites labechei Edwards and Haime, Polyp. Foss. d. Terr. Pal., 1851, p. 257. Milne-Edwards and Haime, Brit. Foss. Corals, 1855, p. 262, pi. 61, figs. 6a-b. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 33 (loc. ref.). Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 21. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 285. Silurian: Great Britain and Russia; Anticosti (Jupiter River) and Manitoulin Islands, Canada (Niagaran). Alveolites louisvillensis Davis. Alveolites louisvillensis Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 46, figs. 5, 6. Niagaran: Louisville, Kentucky (Louisville); West Tennessee (Brownsport). Cotype. Cat. No. 52754 U.S.N.M. Alveolites? niagarensis Nicholson and Hinde. Alveolites Niagarensis Nicholson and Hinde (not Rominger), Canadian Journal, n. s., 14, 1874, p. 152, fig. 3. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 56, fig. 27. Niagaran (Lockport): Rockford, Ontario. Observation. Probably a species of Cladopora. ALVEOLITES NIAGARENSIS Rominger. See Alveolites undosus. ALVEOLITES PEGRAMENSIS Foerste. See Pachypora (Platyaxum) pegramensis. Alveolites repens (Fought). Millepora repens Fought, Amcen Acad., 1, 1749, p. 99. Alveolites repens Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), p. 258. Mon. British Foss. Corals, Pal. Soc., 1854, p. 263, pi. 62, figs. 1, la. Roemer, Sil. Fauna West Tennessee, 1860, p. 22, pi. 2, fig. 13, 13a. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 268. Silurian: Gotland and England;? West Tennessee. Observation. Roemer 's reference is to some Cladopora probably distinct from Alveolites repens (Fought). ALVEOLITES REPENS Billings. See Ccenites juniperina. Alveolites? seriatopora Edwards and Haime. Alveolites? seriatopora Edwards and Haime, Mon. Polyp. Fosa. Terr. Pal., 1851 (Arch. Mus. Hist. Nat., 5), p. 260. Silurian: Dudley, England; Bear Grass Creek near Louisville, Kentucky. Observation. Not recognized as an American species. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 29 ALVEOLITES STROMATOPOROIUES Rominger. See Dictyostronia uiidulatum. Alveoli tes thoroldensis Parks. Alveolites thoroldensis Parks, Univ. Toronto Studies, Geol. Ser. No. 5, 1908, p. 59, pi. 15, figs. 5 and 6. Niagaran: Louisville, Kentucky (Louisville); Thorold, Ontario (Lockport). Alveolites undosus Miller. Alveolites niagarensis Rominger (not Nicholson and Hinde), Geol. Surv. Michigan, 3, pt. 2, 1876, p. 40, 41, fig., pi. 16, figs. 1, 2. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 46, fig. 7. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 336. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 22. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 91. Alveolites undosus Miller, N. A. Pal. Foss. (2d ed.), 1883, p. 262. Niagaran: Drummond Island, Lake Huron; Point Detour, Michigan; Lake Tem- iscaming, Saskatchewan River, etc., Quebec; Falls of the Ohio (Louisville); Dayton, Ohio; West Tennessee (Brownsport). AMBONYCHIA of authors. See Byssonychia and Clionychia Ulrich. AMBONYCHIA Hall. Genotype: A. bellistriata Hall. Ambonychia (part) Hall, Pal. New York, 1, 1847, p. 163. McCoy, British Pal. Rocks and Foss., 1854, p. 264. Woodward, Man. Mollusca, 2, 1854, p. 261. Hall, Pal. New York, 3, 1859, pp. 14, 272, 523; 12th Rep. New York State Cab. Nat. Hist., 1859, pp. 8, 110. Zittel, Handb. Pal., 2, 1881, p. 35. Miller, N. A. Geol. Pal., 1889, p. 460. Koken, Die Leitfossilien, Leipzig, 1896, p. 185. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 489. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 429. AMBONYCHIA ACUTIROSTRA Hall. See Mytilarca acutirostra. Ambonychia afflnis Ulrich. Ambonychia affinis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 492, pi. 35, figs. 5-7. Trenton (Prosser): Near Spring Valley, Minnesota; Carroll County, Illinois. Cotype Cat. No. 46083, U.S.N.M. A M BONYCHIA (MEGAPTERA) ALATA Meek. See Anomalodonta alata. Ambonychia amygdalina Hall. Ambonychia amygdalina Hall, Pal. New York, 1, 1847, p. 165, pi. 36, figs. 6a-c. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 493, pi. 35, figs. 8, 9. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 430, fig. 561c-d. Palaearca? amygdalina Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 65 (gen. ref.). Cypricardites amygdalina Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 22, fig. Posidonomya amygdalina Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177, pi. 13, figs. 20, 21. Cleionychia amygdalina Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). Trenton: Adams, Jefferson County, New York; Goodhue County, Minnesota (Prosser). Plesiotype.Czt. No. 46085, U.S.N.M. AMBONYCHIA APELEA Hall. See Streptomytilus aphsea. AMBONYCHIA ATTENUATA of authors. See Clionychia lamellosa. 30 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ambonyehia bellistriata Hall. Ambonychia bellistriata Hall, Pal. New York, 1, 1847, p. 163, pi. 36, figs. 4a-d. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 605. Zittel, Handb. Pal., 2, Munich, 1881, p. 35, fig. 42a. Lesley, Geol. Surv. Pennsylvania, Rep., P. 4, 1889, p. 22, fig. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 492, pi. 35, figs. 1 and 2. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 430, fig. 561a, b. Posidonomya bellistriata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 176, pi. 13, figs. 5, 6. Trenton: Middleville and Trenton Falls, New York; near Wykoff, Minnesota (Prosser). Plesiotype.-CaL No. 46084, U.S.N.M. AMBONYCHIA BELLISTRIATA Miller. See Byssonychia vera. AMBONYCHIA CARINATA Hall. See Byssonychia carinata. AMBONYCHIA (MEGAPTERA) CASEI Meek and Worthen. See Opisthoptera casei. AMBONYCHIA (MEGAPTERA) CASEI? Meek. See Opisthoptera fissicosta. AMBONYCHIA CINCINNATIENSIS Miller and Faber. See Byesonychia vera. AMBONYCHIA COSTATA James. See Anomalodonta costata. Ambonychia? curvata Raymond. Ambonychia? curvata Raymond, Amer. Jour. Sci., 20, 1905, p. 373. Chazyan (Day Point, Crown Point): Chazy, Valcour and Sloop Islands, New York. AMBONYCHIA E RECTA Hall. See Olionychia erecta. AMBONYCHIA EXCAVATA Miller. See Clionychia excavata. Ambonychia illinoisensis Worthen. Ambonychia Illinoisensis Worthen, Geol. Surv. Illinois, 6, 1875, p. 495, pi. 23, figs. 4a-b. Richmond (Maquoketa): Savannah County, Illinois. AMBONYCHIA INTERMEDIA Meek and Worthen. See Byssonychia intermedia. AMBONYCHIA JAMESI Miller. See Allonychia jamesi. AMBONYCHIA LAMELLOSA of authors. See Clionychia lamellosa. AMBONYCHIA MAXIMA Safford. Ambonychia maxima Safford, Geol. Tennessee, 1869, p. 287 (not defined). Middle Nashville: Central Tennessee. AMBONYCHIA MYTILOIDES Hall. See Clionychia mytiloides. AMBONYCHIA NEGLECTA McChesney. See Amphico?lia neglecta. AMBONYCHIA NITIDA Billings. See Mytilarca nitida. AMBONYCHIA OBESA Miller. See Byssonychia obesa. AMBONYCHIA OBTUSA Hall. See Cyrtodonta obtusa, Ambonychia orbicularis (Emmons). Pterinea orbicularis Emmons, Nat. Hist. New York, Geol., 2, 1842, pp. 395, 397, fig. 3. Owen, Amer. Jour. Sci. and Arts, 47, 1844, pp. 368, 369, fig. 3. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 31 Ambonychia orbicularis Continued. Posidonomya orbicularis Emmons, Amer. Geol., 1, pt. 2, 1855, p. 176, pi. 13, figs. 18, 19. Ambonychia orbicularis Hall, Pal. New York, 1, 1847, p. 164, pi. 36, tigs. 5a-d. Emmons, Man. Geol., 1860, p. 99, fig. 88. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 22, fig. Trenton: Watertown and Middleville, New York. AMBONYCHIA PERANGULATA Miller. See Psilonychia perangulata. Ambonychia planistriata Hall. Ambonychia planistriata Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 32. Ulrich Geol. Minnesota, 3, pt. 2, 1894, p. 491, pi. 35, figs. 3 and 4. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 58, pi. 7, figs. 3, 4. Black River (Platteville): Mineral Point and Beloit, Wisconsin; Cannon Falls, Minnesota; Lee County, Illinois. Plesiotype. Cat. No. 46086, U.S.N.M. AMBONYCHIA RADIATA of authors. See Byssonychia radiata. AMKONYCHIA RAUCHI McChesney. Ambonychia Rauchi McChesney, Desc. New Fossils, 1860, p. ,S9. M;iysville or Richmond: Madison, Indiana. Observation. Probably refers to some species of Byssonchia, but description is too poor for identification. AM BONYCHIA RETRORSA Miller. See Byssonychia retrorsa. AMBONYCHIA ROBUSTA Miller. See Byssonychia robusta and B. richmondensis. Ambonychia septentrionalis Whiteaves. Ambonychia septentrionalis Whiteaves, Geol. Surv. Canada, Ann. Rep. (n. s.), 14, App. F, 1904, p. 46; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 255, pi. 28, fig. 5. Niagaran: Ekwan River, Canada. AMUONYCHIA STRLECOSTA McChesney. See Pterinea strisecosta. AMBONYCHIA SUBUNDATA Miller. See Clionychia subundata. AMBONYCHIA SUPERBA Billings. See Clionychia superba. AMBONYCHIA SWANANA Safford. Ambonychia Swanana Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.). Upper Nashville: Central Tennessee. AMBONYCHIA TENUISTRIATA Miller. See Byssonychia tenuistriata. AMBONYCHIA UNDATA Hall. See Clionychia undata. Ambonychia undulata (Whitfield). Leptodomus undulatus Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 81; Geol. Wisconsin, 4, 1882, p. 293, pi. 18, figs. 1, 2. Ambonychia undulata Whiteaves, Ann. Rep. Geol. Surv. Canada (n. s.), 14, App. F, 1904, p. 46; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 254, pi. 28, fig. 4. Niagaran: Wauwatosa, Wisconsin (Racine); Ekwan River, Canada. 32 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. AMPHERISTOCRINUS Hall. Genotype: A. typus Hall Ampheristocrinus Hall, llth Ann. Rep. Indiana Dept. Geol. Nat. Hist., 1882, p. 278, fig. Trans. Albany Inst., 10^ 1883, p. 67, fig. (Preliminary notice, 1879). Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 115, 143. Miller, N. A. Geol. Pal., 1889, p. 223. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 18; Treatise on Zoology, pt. 3, Echi- uoderma, London, 1900, p. 173. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 67. Anipheristocrinus? calyx (Hall). Poteriocrinus? calyx Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 266, pi. 15, fig. 14; Trans. Albany Inst., 10, 1883, p. 66 (Preliminary notice, 1879). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 740, fig. Niagaran (Waldron): Waldron, Indiana. Ampheristocrinus dubius Weller. Ampheristocrinus dubius Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 67, pi. 14, fig. 11. Niagaran (Racine): Romeo, Illinois. Ampheristocrinus typus Hall. Ampheristocrinus typus Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 278, pi. 15, figs. 17, 18; Trans. Albany Inst., 10, 1883, p. 67 (Prelimi- nary notice, 1879). Miller, N. A. Geol. Pal., 1889, p. 223, text fig. 243. Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 68. Niagaran (Waldron): Waldron, Indiana. AMPHIC(ELIA Hall. Genotype: A. leidyi Hall. Amphicoelia Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, (extras, 1865) p. 339; Rev. ed., p. 386. Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 339, footnote; 3, 1868, p. 357. Meek, Amer. Jour. Sci. Arts, 2d ser., 44, 1867, p. 173, footnote. Miller, N. A. Geol. Pal., 1889, p. 461. Amphico3lia costata (Hall and Whitfield). Amphicoelia (Leptodomus?) costata Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 140, pi. 7, fig. 23. Amphicoelia costata Miller, N. A. Geol. Pal., 1889, p. 461, fig. 773. Niagaran (Cedarville): Cedarville, Greene County, Ohio. Amphicoelia leidyi Hall. AmphiccElia leidyi Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1865), p. 339, pi. 14 (5), figs. 13-15, p. 387; Rev. ed., 1870, p. 387, pi. 14, figs. 13-15; p. 431, fig.; 28th Rep.New York State Mus. Nat. Hist., doc. ed., 1875, pi. 27, figs. 1, 2; mus. ed. 1879, p. 171, pi. 27, figs. 1, 2; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 313, pi. 28, figs. 1, 2. Leptodomus (Amphicoelia) leidyi Whitfiela, Geol. Wisconsin, 4, 1882, p. 357 (gen. ref.) Niagaran: Racine and Wauwatosa, Wisconsin; Bridgeport, Illinois (Racine); Waldron, Indiana; and Newsom, Tennessee (Waldron). Amphicoalia neglecta (McChesney). Ambon ychia neglecta McChesney, Desc. New Fossils, 1861, p. 88. Pterinea neglecta Wiuchell and Many, Mem. Boston Soc. Nat. Hist., 1, 1865, pp. 96, 108. Pterinea (Ambonychia) neglecta McChesney, Plates Illust. New Sp. Fossils, 1865, pt. 9, figs. 2-2b. Leptodomus neglectus Whitfield, Geol. Wisconsin, 4, 1882, p. 292, pi. 18, figs. 3, 4. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 33 Amphieoelia neglecta Continued. Amphicoclia neglecta McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 41, pi. 9, fig. 2. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 358, pi. 5, fig. 9a, b. Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, pt. 2, 1895, p. 66 (loc. occ.). Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 449, pi. 10, fig. 10. Niagaran: Bridgeport, Illinois; Milwaukee, Wisconsin (Racine); Wabash, In- diana; Ontario (Guelph). Amphicoelia orbiculoldes (Grabau). Avicula? orbiculata Hall (not Hall, 1843) Pal. New York, 2, 1852, p. 284, pi. 59, fig. 4. Lyriopecten orbiculoides Grabau, Bull. New York State Mus., 45, 1901, p. 208; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208. Amphicoelia orbiculata Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, pt. 2, 1899, p. 156 (gen. ref.). Clinton (Rochester): Rochester, Niagara, etc., New York. Amphicoelia ulrichi Maynard. Amphicoelia ulrichi Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 453, pi. 75, figs. 8-10. Helderbergian (Keyser): Keyser, West Virginia. A nip hid os 111 a delafleldi Castelnau. Not recognized. Amphidesma delafieldi Castelnau, Sil. Syst., 1843, p. 44, pi. 14, fig. 10. Ordovician or Silurian: New York. AMPHIGRAPTUS Lapworth. Genotype: Graptolithus divergens Hall. Amphigraptus Lapworth, Geol. Mag., 10, 1873, p. 559. Zittel, Handb. Pal., 1, 1879, p. 298. Tullberg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 12. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Roemer and Freeh, Leth. geog., 1 Theil. Leth. Pal., 1, 3 Lief., 1897, p. 587. Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. 121. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 270. Amphigraptus divergens (Hall). Graptolithus divergens Hall, Pal. New York, 3, 1859, p. 509, fig. 9; 12th Ann. Rep. New York State Cab. Nat. Hist., 1859, p. 57, fig. 9. Canadian Org. Rem., Geol. Surv. Canada, dec. 2, 1865, p. 13, fig. 11. Walcott, Trans. Albany Inst., 10, 1883, p. 35 (Adv. sheets 1879). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 264, fig. Graptolithus (Crenograptus) divergens Hall, 20th Ann. Rep., New York State Cab. Nat. Hist., 1868, p. 179, fig. 12; p. 226; rev. ed., 1868, p. 210, fig. 12; p. 223. Ccenograptus (?Pleurograptus,? Pterograptus) divergens, Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 587. Amphigraptus divergens Lapworth, Geol. Mag., 10, 1873, p. 559; Cat. West Scot, FOBS., 1876, p. 5, pi. 1, fig. 70; Quart. Jour. Geol. Soc. London, 34, 1878, p. 331; Ann. Mag. Nat. Hist., 6, 1880, p. 18; Trans. Royal Soc. Canada, 5, sec. 4, 1886, p. 184. Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 338. Elles and Wood, Mon. British Grapt., pt. 3, 1903, p. 122, fig. 73, pi. 18, fig. 1. Ruede- mann Mem. New York State Mus., 11, pt. 2, 1908, pp. 271-272, figs. 187-190, pi. 15, figs. 2, 3. Chazyan: Kenwood and Glenmont, New York (NormansHll); England and Scot- land (Hartfell). 84243 Bull. 9215 3 34 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Amphlgraptus multifasclatus (Hall). Graptolithus multifasciatus Hall, Pal. New York, 3, 1859, suppl., pp. 508, 509, fig. 8; 12th Ann. Kep. New York State Cab. Nat. Hist., 1859, pp. 56, 57, fig. 8; Can. Org. Rem., Geol. Surv. Canada, dec. 2, 1865, p. 10, fig. 7. Wal- cott, Trans. Albany Inst,, 10, 1883, p. 35 (Adv. sheets, 1879). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 266, fig. Graptolithus (Monoprion) multifasciatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 176, fig. 8, p. 226; rev. ed., 1870, p. 208, fig. 8; p. 223. Clematograptus multibrachiatus Lapworth, Ann. Mag. Nat. Hist., 6, 1880, p. 20. Clematograptus multifasciatus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 652 (gen. ref.). Lapworth, Proc. and Trans. Royal Soc. Canada, 4, 1887, p. 178. Walcott, Bull. Geol. Soc. Amer. 1, 1890, p. 338. Amphigraptus multifasciatus Elles and Wood, Mon. Brit. Graptolites, Pal. Soc., 1903, p. xlii (gen. ref.). Ruedemann Mem. New York State Mus., 11, pt. 2, 1908, pp. 272-274, pi. 15, fig. 4. Chazyan (Normanskill) : Kenwood, near Albany, New York; Canada. AMPHILICHAS Raymond. Genotype: Platymetopus lineatus Angelin. Platymetopus Angelin, Pal. Scand., 1854, p. 68; 3d ed., 1878, p. 68. Nieszkow- ski, Archiv. f. Naturk. Liv-, Ehst-u. KurL, (1), 1, 1857, p. 621. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, pp. 5, 29, 39, 49. Zittel, Handb. Pal., 2, 1885, p. 623. Clarke, Geol. Minnesota, 3, pt. 2,1894, p. 753. Koken, Die Leitfossilien, Leipzig, 1896, p. 30. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 67. Gurich, Neues Jahrb. f . Min., Geol. Pal. Beilage-Band, 14, 1901, p. 524, pi. 20, fig. 19. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 62, 63, 81. Raymond, Amer. Jour. Sci., 4th ser., 19, 1905, p. 377. Paralichas Reed (new name for Platymetopus, preoccupied), Quart. Jour. Geol. Soc. London, 58, sec. F, 1902, pp. 80-82. Amphilichas Raymond, Amer. Jour. Sci., 4th ser., 19, 1905, p. 378 (to replace the preoccupied names Platymetopus and Paralichas). Grabau .and Shimer, N. A. Index Fossils, 2, 1910, p. 308. Slocom, Field Mus. Nat. Hist., Geol. Ser. 4, No. 3, 1913, p. 58. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 721 Amphilichas bicornis (Ulrich). Lichas (Hoplolichas) bicornis Ulrich, Amer. Geol., 10, 1892, p. 272, fig. 2a, D. Lichas (Platymetopus) bicornis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 748, figs. 70, 71. Richmond (Maquoketa): Spring Valley, Minnesota. Holotype.Ga,t. No. 41949. U.S.N.M. Amphilichas clermontensis Slocom. Amphilichas clermontensis Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913, p. 59, pi. 15, fig. 7. Richmond (Maquoketa): Clermont, Iowa Amphilichas cucullus (Meek and Worthen). Lichas cucullus Meek and Worthen, Proc. Acad. Nat. Sci., Philadelphia, 1865, p. 266; Geol. Surv. Illinois, 3, 1868, p. 299. Lichas (Platymetopus) cucullus Clarke, Geol. Minnesota, 3, 1894, p. 746, figs. 66, 67. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 236. Black River: Alexander County, Illinois (Kimmswick) ; Janesville, Wisconsin; Lake Winnipeg, Canada. Trenton (Prosser): Wykoff, Minnesota. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 35 Amphilichas halll (Foerste). Platyniotus trentonensis (part) Hall, Pal. New York, 1, 1847, p. 235, pi. 64, fig. le (not la-d). Lichas trentonensis Miller, N. A. Geol. Pal., 1889, p. 555, fig. 1026. Lichashalli Foerste, Bull. Ser. Lab. Denison Univ., 3, 1888, p. 118, pi. 13, fig. 4. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 754. Lichas faberi Miller, N. A. Geol. Pal., 1889, p. 554, fig. 1024. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Cotype, Cat. No. 43038, U.S.N.M Amphilichas jukesi (Billings). Lichas Jukesii Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 282, fig. 269a, b; 335, figs. 323a, b. Lichas (Platymetopus) jukesi Schmidt, Mem. PAcad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, p. 29. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753. Chazyan (Quebec P.): Cow Head, Newfoundland; Stanbridge, Quebec. Amphilichas minganensis (Billings). Lichas Minganensis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 181, fig.!63a, b. Lichas (Platymetopus) minganensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753. Platymetopus minganensis Raymond, Ann. Carnegie Mus., 3, 1905, p. 355, pi. 14, figs. 1-3; p. 366, figs. 7, 8. Amphilichas minganensis Raymond, 7th Rep. State Geol. Vermont, 1910, p. 232, pi. 36, figs. 1-3, pi. 38, fig. 6, pi. 39, fig. 14; Ann. Carnegie Mus., 7, No. 1, 1910, p. 72, pi. 18, fig. 6, pi. 19, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 308, fig. 1619. Bassler, Bull. Virginia Geol. Surv., 2, A, 1909, p. Ill, figs. 7, 8, 10. Perkins, Rep. State Geol. Vermont, 8, 1912, pi. 18, fig. 6. Lichas Champlainensis Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 342, pi. 33, figs. 6-8. Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22. Chazyan: Large Island, Mingan Islands, and Montreal, Canada; Chazy, Valcour Island, etc., New York, Isle la Motte, Vermont (Day Point, Valcour") : Lexing- ton, Virginia (Liberty Hall). Amphilichas rhinoceros Slocom. Amphilichas rhinoceros Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913, p. 58, pi. 15, figs. 5-6. Richmond (Maquoketa): Elgin, Iowa. Amphilichas robbinsi (Ulrich). Lichas (Hoplolichas) robbinsi Ulrich, Amer. Geol., 10, 1892, p. 271, fig. la, b. Lichas (Platymetopus) robbinsi Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 747, figs. 68, 69. Trenton (Prosser): Near Wykoff, Minnesota. Holotype. Cat. No. 41950, U.S.N.M. Amphilichas trentonensis (Conrad). Asaphus? Trentonensis Conrad, Jour. Acad. Nat. Sci. Philadelphia,' 8, 1842, p. 277, pi. 16, fig. 16. Platynotus trentonensis Hall, Pal. New York, 1, 1847, p. 235, pi. 64, figs. la-d. Lichas trentonensis Emmons, Amer. Geol., 1, pt. 2, 1855, pi. 15, figs. 2, 5, 18. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 127. Rowley, Missouri Bur. Geol. Mines, 2d ser., 8, 1908, p. 58, pi. 15, figs. 4, 5. 36 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Amphilichas trentonensis Continued. Lichas (Platymetopus) trentonensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753, (gen. ref.). Platymetopus trentonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 200, pi. 15, figs. 17-19. Amphilichas trentonensis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 308. Trenton: Near Carlisle, Pennsylvania; Middleville. etc., New York; Jackson- burg, New Jersey; Frankfort, Missouri. AMPHION CAYLEYI Billings. See Anacheirurus? apollo. AMPHION MULTISEGMENTATUS Portlock. See Encrinurus multiseginentatus. AMPHISTROPHIA Hall and Clarke. See Strophonella Hall. AMPHOTON Lorenz. See Dolichometopus Angelin. AMPLEXOPORA Ulrich. Genotype: A. cingulata Ulrich. Amplexopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154. Foord, Contr. Micro-Pal. Cambro.-SiL, 1883, p. 15. Miller, N. A. Geol. Pal., 1889, p. 291. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 377, 450. Ulrich, Zittel- Eastman Textb. Pal., 1896, p. 278. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 577. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 30. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 41. Grabau and Shinier, N. A. Index Fossils, 1, 1904, p. 130. Cum- ings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 739. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 336. AMPLEXOPORA AFFINIS Ulrich. See Heterotrypa affinis. Amplexopora ampla Ulrich and Bassler. Amplexopora ampla Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 42, pi. 13, figs. 7, 8; pi. 14, fig. 3. Maysville: Nashville and Columbia, Tennessee (Leipers); Cincinnati, Ohio (Fair- mount). Cotypes.C&t. No. 42313, U.S.N.M. AMPLEXOPORA CANADENSIS Foord. See Batostoma canadense. Amplexopora cingulata Ulrich. Amplexopora cingulata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 254, pi. 11, figs. 5-5c. Miller, N. A. Geol. Pal., 1889, fig. 449 (p. 292). Ulrich, Geol. Surv. Illinois, 8, 1890, p. 308, fig. 3c; p. 309, fig. 4c. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 193. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 55, pi. 3, fig. 6. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 131, fig. 186g. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 758, pi. 6, figs. 1, la; pi. 26, fig. 3. Maysville (Fairmount) : McKinneys Station and Boyle County, Kentucky; Cincinnati, Ohio. . Cat. No. 43641, U.S.N.M. Amplexopora columbiana Ulrich and Bassler. Amplexopora columbiana Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 41, pi. 13, figs. 1-4. Hayes and Ulrich, Folio U. S. Geol. Surv., 95, 1903, illustration sheet, figs. 11, 12. Maysville (Leipers): Columbia, etc., Tennessee. Cotypes. Cat. No. 43211, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 37 Amplexopora cylindracea Ulrich and Bassler. Amplexopora cylindracea Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 43, pi. 13, figs. 5, 6; pi. 14, figs. 4, 5. Trenton (Catheys) : Nashville, Tennessee. Cotypes Cat. No. 43216, U.S.N.M. Amplexopora? discoidea (Nicholson). Chsetetes discoideus James, Cat. Foss. Cincinnati group, 1871 (not denned). Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 511, pi. 30, figs. 4-4d; Pal. Ohio, 2, 1875, p. 20G, pi. 21, figs. 15-15c; Pal. Prov. Ontario, 1875, pp. 10, 32,; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 88, pi. 5, figs. 7, 7a. Chaetetes (Monticulipora) discoideus Chamberlin, Geol. Wisconsin, 1, 1883, p. 153, fig. Monticulipora (Monotrypa) discoidea Nicholson, Genus Monticulipora, 1881, p. 193, pi. 4, figs. 3, 3f. Amplexopora discoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 255. Foord, Contr. Micro-Pal. Cambro.-Sil., 1883, p. 17. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 11. Leptotrypa discoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 158. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Hist. Res. Indiana, 1908, p. 855, pi. 20, figs. 2-2f. Monticulipora discoidea Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 247, pi. 10, figs. 4, 5. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 163. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 420, figs. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 178. Maysville: Cincinnati, Ohio, and vicinity (Fairmount); Ontario (Pulaski). Amplexopora filiasa (D'Orbigny). Monticulipora filiasa D'Orbigny, Prodr. de Pal., 1, 1850, p. 25. Milne-Edwards, Hist. nat. des Corall, 3, 1860, p. 274. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 162. J. F. James, ibid., 15, 1893, p. 158. Chsetetes filiasa Milne-Edwards and Haime, Pol. Foss. Ter. Pal., 1851, p. 261. Nicholson, Pal. Ohio, 2, 1875, p. 206. Leptotrypa filiosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 456, pi. 36, figs. 7, 7a. Monotrypa? filiasa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 10, 1883, p. 162. Amplexopora filiasa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 164. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 41, pi. 12, figs. 10, 11. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 12, pi. 3, figs. 1-3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 765, pi. 5, fig. 2; pi. 7, figs. 1, Ib. Monticulipora subcylindrica James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 123, fig. 13a-c. Maysville (Fairmount-Corryville) : Cincinnati, Ohio, and various localities in Ohio, Indiana, Kentucky, Tennessee, etc. Plesiotypes. Cat. No. 44070, U.S.N.M. Amplexopora granulosa Cumings and Galloway. Amplexopora granulosa Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 69, pi. 1, figs. 1-lc. Richmond (Liberty): Near Weisburg, Indiana. AMPLEXOPORA MULTISPINOSA Cumings. See Amplexopora septosa. Amplexopora persimilis Nickles. Amplexopora persimilis Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 47, pi. 2, figs. 2, 3. Eden (Economy) : Cincinnati, Ohio, and vicinity. 38 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Amplexopora petasiformis (Nicholson). Chsetetes petropolitanus James, Paleontologist, No. 2, 1878, p. 11. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 31. Monticulipora (Monotrypa) petasiformis Nicholson, Genus Monticulipora, 1881, p. 190, fig. 40. Monotrypa petasiformis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 256; 6, 1883, p. 163. Monticulipora petasiformis James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 168. J. F. James, ibid., 16, 1894, p. 186. Amplexopora petasiformis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 165. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 760, pi. 6, figs. 3, 3a; pi. 26, fig. 2. Eden (Economy-McMicken) : Cincinnati, Ohio, and vicinity. Amplexopora petasiformis welchi (James). Monticulipora (Monotrypa) welchi James, Paleontologist, No. 6, 1882, p. 50; No. 7, 1883, pi. 1, figs. 4-4c. Monticulipora petasiformis var. welchi James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 169. J. F. James, ibid., 16, 1894, p. 187. Amplexopora petasiformis-welchi Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 165. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 13. Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity. Amplexopora pumila Cumings and Galloway. Amplexopora pumila Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 70, pi. 2, figs. 1-le. Richmond (Waynesville and Liberty): Near Weisburg, Indiana. Amplexopora piretulosa Ulrich. Amplexopora pustulosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 451, pi. 36, figs. 3-3c. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 761, pi. 6,figs.4-4b; pi. 26, fig. 1. Monticulipora pustulosa J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 72. Richmond (Waynesville): Hanover, Clarksville, etc., Ohio; Indiana. Cotype. Cat. No. 44069 U.S.N.M. Amplexopora robusta Ulrich. Amplexopora robusta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 82, pi. 1, figs. 1-16. Miller, N. A. Geol. Pal., 1889, p. 292, fig. 450. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 318, fig. 7d. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 762, pi. 6, figs. 5, 5b. Maysville (Bellevue): Cincinnati, Ohio, and vicinity; Indiana; Kentucky. Holotype.C&t. No. 43640 U.S.N.M. Amplexopora septosa (Ulrich). Atactopora septosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 125, pi. 12, figs. 7-7c. Monticulipora septosa James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 180. James, J. F., ibid., 16, 1894, p. 203. Amplexopora septosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 255. Nickles, BulL Kentucky Geol. Surv., 5, 1905, p. 52, pi. 3, fig. 1. Cumings, 32d Ann. Rep. Dep. Geol. NaL Res- Indiana, 1908, p.. 763, pi. 6, figs. 6, 6b; pi. 26, fig. 4. Amplexopora multispinosa Cumings, Amer. Geol., 28, 1901, p. 376, pi. 34, figs. 7-10. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 39 Amplexopora septosa Continued. Amplexopora septosa var. multispinosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 765, pi. 6, figs. 2, 2b; pi. 26, fig. 5. Amplexopora septosa maculosa Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 71, pi. 3, figs. 1-lc. Amplexopora septosa minima Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 72, pi. 4, figs. 1-ld. Eden (McMicken) and Maysville (Mt. Hope and Fairmount): Cincinnati, Ohio, and vicinity; Indiana and Kentucky. . Cat. No. 43621 U.S.N.M. AMPLEXOPORA SEPTOSA MACULOSA Cumings and Galloway. ' See Amplexopora sep- tosa. AMPLEXOPORA SEPTOSA MINIMA Cumings and Galloway. See Amplexopora septosa. AMPLEXOPORA SEPTOSA MULTISPINOSA Cumings. See Amplexopora septosa^ AMPLEXOPORA SUPERBA Foord. See Batostoma superbum and B. minnesotense. AMPLEXOPORA WINCHELLI Ulrich. See Batostoma winchelli. AMPLEXUS Sowerby. Genotype: A. coralloides Sowerby. Amplexus Sowerby, Min. Conch., 1, 1814, p. 165. Phillips, Pal. Foss. Cornwall, Devon and W. Somerset, 1841, p. 7. McCoy, Syn. Char. Garb. Foss. Ireland, 1844, p. 185. Koninck, Desc. Animaux Fossiles, Leige, 1842, p. 26. Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, Zoophytes, 1846, p. 357; Amer. Jour. Sci. Arts, 2d ser., 1, 1846, p. 184. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr., Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), pp. 164, 342. McCoy, British Pal. Rocks Foss., 1854, p. 70. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 452. Billings, Canadian Jour. n. s., 4, 1859, p. 123. Milne-Edwards Hist. Nat. d. Corall., 3, 1860, p. 347. Koninck, Animaux Foss. Terr. Carb. Belgique (Mem. TAcad. Royal Sci. de Belgique, 39), 1872, p. 63. Dybowski, Archiv. f. Natur. Liv-Ehst-und Kurl., 5, 1873, p. 334. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 31. Thomson and Nicholson, Ann. Mag. Nat. Hist., 4th ser., 16, 1875, p. 424. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 153. Zittel, Handb. Pal., 1, 1879, p. 227. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 364. Freeh, Zeits. d. geol. Gesell., 37, 1885, p. 83. Freeh, in Dames & Kayser, Pal. Abhandl., 3, Heft 3, 1886, p. 97. Miller, N. A. Geol. Pal., 1889, p. 171; 2d App., 1897, p. 726. Sherzer, Amer. Geol., 7, 1891, pp. 278-283. Koken, Die Leitfossilien, Leipzig, 1896, p. 313. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 123. Zittel-Eastman Textb. Pal., 1, 1900, p. 76. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 128. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 76. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 58. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 83. AMPLEXUS ANNULATUS Whitfield. See Amplexus whitfieldi. Amplexus clnctutus Miller. Amplexus cinctutus Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1893, p. 259, pi. 1, figs. 5, 6. (Adv. sheets, 1892, p. 5.) Niagaran (Laurel): St. Paul, Indiana. Amplexus cingulatus Billings. Amplexus cingulatus Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 106. (Adv. sheets, 1862.) Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 129, pi. 10, figs. 2, 3, 3a. Silurian: L'Anse a la Barbe, Bay of Chaleurs, Quebec. 40 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Amplexus feildeni Etheridge. Amplexus Feildeni Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 589, pi. 26, fig. 3. Niagaran: Offley Island, Arctic America. Amplexus fenestratus Whitfield. Amplexus fenestratus Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Sun'., 1878, p. 80; Geol. Wisconsin, 4, 1882, p. 278, pi. 15, figs. 1-3. Niagaran (Waukesha-Racine) : Cato, Cato Falls, and near Clarks Mills, Wisconsin. Amplexus junctus Hall. Amplexus junctum ( Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 415 (ext. 1882, p. 11). Niagaran: Port Byron, Illinois. AMPLEXUS LAXATUS Billings. See Pycnostylus guelphensis. Amplexu^ phragmoceras (Salter). Calophyllum Phragmoceras Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, 1852, p. ccxxx, pi. 6, figs. 4, 4a. Houghton, Jour. Geol. Soc. Dublin, 1, 1857, p. 245, pi. 8, fig. 1. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 585. Amplexus phragmoceras Miller, N. A. Geol. Pal., 1889, p. 171 (gen. ref.). Niagaran: Seal Island, Baring Bay, and Cape Hilgard, Arctic America. Amplexus septatus Foerste. Amplexus septatus Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, Xo. 1, 1909, p. 8, pi. 1, figs. 12a, b; pi. 2, figs. 16 a-c. Cayugan (Kokomo): Near Kokorno, Indiana. Amplexus shumardi (Edwards and Haime). Cyathophyllum Shumardi Milne-Edwards and Haime, Hist. Nat. Corall., 3, 1860, p. 372; Mon. Polyp. Foss. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 370, pi. 7, fig. '3. Roemer, Sil. Fauna West Tennessee, 1860, p. 27, pi. 2, figs. 14, 14a. Amplexus shumardi Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 153, pi. 54. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 132, fig. 14; pi. 138, fig. 3. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 24, fig. Foerste, Jour. Geol., 11, 1903, p. 712. Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 59. Zaphrentis cinctosa Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 92. Zaphrentis shumardi Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 121, pi. 8, figs. 3, 4. Niagaran: Perry County, etc. Tennessee (Brownsport) : Mason ville, Iowa; Drummond Island, Point Detour, Cockburn Island, etc., Lake Huron; Louisville, Kentucky; Wisconsin, etc. Amplexus uniformis Hall. Amplexus uniforme Hall, 35th Rep. New York State Mus. Nat. Hist,, 1884, p. 415 (ext. 1882, p. 11). Niagaran: Port Byron, Illinois. Amplexus whitfleldi Miller. Amplexus annulatus Whitfield (not Verneuil and Haime, 1850), Ann. Rept. for 1877, W T is. Geol. Surv., 1878, p. 80; Geol. Wisconsin, 4, 1882, p. 314, pi. 23, figs. 8-11. Amplexus whitfieldi Miller, N. A. Geol. Pal., 2d App., 1897, p. 726. Niagaran (Guelph): Sheboygan and Carlton, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 41 AMPTX Dalman. Genotype: Ampyx nasutiis Dalman. Ampyx Dalman, Svenska Vet.-Akad. Handl. for 1826, 1827, pp. 252, 279. Dalman-Engelhart, Die Palseaden, Nurenberg, 1828, pp. 53, 72. Eichwald, Zool. Specialis, Pt. 2, Vilnse, 1830, p. 116. Green, Mon. Tril. N. A., 1832, p. 19. Edwards, Hist. Nat. d. Crustacea, 3, 1840, p. 296. Portlock, Rep. Geol. Londonderry, 1843, p. 258. Burmeister, Org. der Tril., Berlin, 1843, p. 128. Goldfuss, Neues Jahrb. f. Min., etc., 1843, p. 540, 542. Emmrich, Neues Jahrb. f. Min., etc., 1845, p. 45. Burmeister, Org. Tril., London, 1846, p. 110. Hawle and Corda, Abh. d. k. Bohmischen Gesell. d. Wiss., 5 (extract), 1847, p. 38, pi. 3, fig. 19. Forbes, Mem. Geol. Surv. United King- dom, Dec. 2, 1849, pi. 10. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 780; Syst. Sil. du Centre Boheme, 1, 1852, p. 632. McCoy, British Pal. Rocks Fossils, 1854, p. 147. Pictet, Traite Pal., 2d ed., 2, 1854, p. 509. Malaise, Desc. Terr. Sil. du Centre de la Belgique, 1873, p. 84. Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874, p. 38. Angelin, Pal. Scandinavica, 3d ed., Holmise, 1878, p. 19. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 176. Zittel, Handb. Pal., 2, 1885, p. 594. Miller, N. A. Geol. Pal., 1889, p. 528. Pompeckj, Beit. Phys.-Oekon. Gesell. Konigsberg, 1890, p. 16. Vogdes, Amer. Geol. 11, 1893, pp. 99-105. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7, ser., 42, 1894, p. 74. Beecher, Amer. Jour. Sci., 3d ser., 49, 1895, p. 307. Koken, Die Leitfossilien, Leipzig, 1896, p. 15, fig. 8. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 105, 184, 186, pi. 3, fig. 13. Freeh, Leth. geog.. 1, Th., Leth. Pal., 2, 1897, p. 32, footnote. Ruedemann, Bull. New York State Mus., 49, 1901, p. 51. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 32. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 259. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 712. Lonchodomas Angelin, Pal. Scandinavica, 3d ed., Holmise, 1878, p. 80, pi. 40, fig. 11. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 177. Zittel, Handb. Pal., 2, 1885, p. 594. Pompeckj, Beit. Phys.-Oekon. Gesell. Konigsberg, 1890, p. 16. Vogdes, Amer. Geol., 11, 1893, p. 103. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 62, 1894, p. 75. Koken, Die Leitfossilien, Leipzig, 1896, p. 15. Ruedemann, Bull. New York State Mus., 49, 1902, p. 51. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 712 (Genotype: Ampyx rostratus Sars). Ampyx americanus Safford and Vodges. Ampyx Americanus Safford and Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1889, p. 166, fig. Vogdes, Amer. Geol., 11, 1893, p. 106, fig. 4. Ampyx jillsoni Safford, Geol. Tennessee, 1869, p. 235 (nom. nud.). Chazyan (Athens): Bulls Gap, near Russellville, Tennessee. Ampyx (Lonchodomas) halli (Billings). Ampyx halli Billings, Rep. Econ. Geol., etc., Vermont, 1862, p. 231, fig. 365; Geol. Vt., 2, 1862, p. 959, fig. 365; Geol. Canada, Geol. Surv. Canada, 1863, p. 274, fig. 279a-c; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 24, text figs. 25a-c (Adv. sheets, 1861). Vogdes, Amer. Geol., 11, 1893, p. 106, fig. 5. Ampyx (Lonchodomus) halli Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 259, figs. 1548, 1549. Lonchodomas halli Raymond, Ann. Carnegie Mus., 3, No. 2, 1905, p. 332, pi. 10, figs. 3-7; 7th Rep. State Geol. Vermont, 1910, p. 216, pi. 32, figs. 3-6. Chazyan: St. Dominique, Canada; Highgate, Vermont; Valcour, etc., New York (Crown Point). 42 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ampyx (Lonchodomas) hastatus Ruedemann. Ampyx (Lonchodomas) hastatus Ruedemann, Bull. New York State Mus., 49, 1902, p. 48, pi. 3, figs. 1-10, 30. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. AMPYX JILLSONI Safford. See Ampyx americanus. Ampyx (Lonchodomas) Iseviusculus (Billings). Ampyx Iseviusculus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 295, fig. 285. Chazyan (Quebec-N): Table Head, Newfoundland. Ampyx niagarensis Van Ingen. Ampyx niagarensis Van Ingen, School of Mines Quart., 23, 1901, p. 53, fig. 15, pi. figs. 11, lla. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 259, fig. 1550. Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas. Ampyx (Lonchodomas) normalis (Billings). Ampyx normalis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 295, fig. 286. Miller, N. A. Geol. Pal., 1889, p. 528, fig. 958. Vogdes, Amer. Geol., 11, 1893, p. 107, fig. 6. Ampyx (Lonchodomus) normalis Grabau and Shimer, N. A. In4ex Fossils, 2, 1910, p. 259. Chazyan (Quebec-N, P.): Table Head and Pistolet Bay and four miles northeast of Portland Creek, Newfoundland. Ampyx quadricostatus (Emmons). Microdiscus quadricostatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 116, pi. 1, fig. 8; Man. Geol., 1860, p. 88, fig. 73. Barrande, Bull. Soc. Geol. France, 2d ser., 18, 1861, p. 280, pi. 5, fig. 13. Marcou, Mem. Boston Soc. Nat. Hist., 4, 1888, p. 128. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 405, fig. Miller, N. A. Geol. Pal., 1889, p. 557, fig. 1033. Chazyan (Athens): Augusta County, Virginia. Ampyx (Lonchodomas) rutilius (Billings). Ampyx rutilius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 296. Vogdes, Amer. Geol., 11, 1893, p. 108. Chazyan (Quebec-P.): Four miles northeast of Portland Creek, Newfoundland. Ampyx (Lonchodomas) semicostatus (Billings). Ampyx semicostatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 297, fig. 287. Vogdes, Amer. Geol., 11, 1893, p. 108, fig. 6. Chazyan (Quebec-N, P.): Table Head, Pistolet Bay, and four miles northeast Portland Creek, Newfoundland. AMYGDALOCYSTIS Haeckel. See Amygdalocystites Billings. AMYGDALOCYSTITES Billings. Genotype: A. florealis Billings. Amygdalocystites Billings, Canadian Jour., 2, 1854, p. 270; Geol. Surv. Canada, Rep. for 1853-1857, 1857, p. 288; Geol. Surv. Canada, dec. 3, 1858, p. 63. Chapman, Expos. Min. and Geol. Canada, 1864, p. 109. Zittel. Handb. Pal., 1, 1879, p. 413. Billings, Trans. Ottawa Field Nat. Club, 1, No. 4, 1883, p. 51. Miller, N. A. Geol. Pal., 1889, p. 223. Jaekel, Zeits. d. d. geol. Gesell., 52, 1900, p. 675. Zittel, Grundzuge Pal., 1, 1910, p. 184. Grabau and Shi- mer, N. A. Index Fossils, 2, 1910, p. 462. Springer, Zittel-Eastman Textb. Pal.,2ded., 1913, p. 151. Amygdalocystis Haeckel, Amphor. und Cystoid., 1896, p. 106. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 58, fig. 29. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 43 Amygdalocystites florealis Billings. Amygdalocystites florealis Billings, Canadian Jour., 2, 1854, p. 270, figs. 4-6; Rep. Geol. Surv. Canada, 1857, p. 289; Canadian Org. Remains, dec. 3, Geol. Surv. Canada, 1858, p. 888, 63, pi. 6, fig. la-e; pi. 10 bis., fig. 12. Chamberlin Geol. Wisconsin, 1, 1883, p. 154, fig. Grabau and Shimer, N. A. Index Fos- sils, 2, 1910, p. 463, fig. 1769. Amygdalocystis florealis Haeckel, Amphorideen u. Cystoideen, 1896, p. 106, fig. 15. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 57, fig. 19. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 45 (loc. occ.). Trenton (Curdsville): Ottawa and Kirkfield, Ontario. Amygdalocystites florealis laevis Billings. Amygdalocystites florealis var. laevis Billings, Trans. Ottawa Field Nat. Club, 4, 1883, p. 52. Trenton (Curdsville): Hull, Quebec. Amygdalocystites huntingtoni Wetherby. Amygdalocystites huntingtoni Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 177, pi. 5, fig. 3. Miller, N. A. Geol. Pal., 1889, p. 223, fig. 245. Trenton (Curdsville): Mercer County, near High Bridge, Kentucky. Amygdalocystites radiatus Billings. Amygdalocystites radiatus Billings, Canadian Jour., 2, 1854, p. 271, figs. 7, 8; Rep. Geol. Surv. Canada, 1857, p. 289; Canadian Org. Rem., dec. 3, Geol. Surv. Canada, 1858, p. 65, pi. 6, figs. 3a, 3b; Trans. Ottawa Field Nat. Club, 1, No. 4, 1883, p. 51. Amygdalocystis radiatus Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 45 (loc. occ.). Trenton (Curdsville): Ottawa and Kirkfield, Ontario. Amygdalocystites tenuistriatus Billings. Amygdalocystites tenuistriatus Billings, Canadian Journal, 2, 1854, p. 271, text fig. 9; Rep. Geol. Surv. Canada, 1857, p. 289; Canadian Org. Rem., dec. 3, Geol. Surv. Canada, 1858, p. 64, pi. 6, figs. 2a-f. Trenton (Curdsville): Ottawa, Ontario. ANABAIA Clarke. Genotype: A. paraia Clarke. Anabaia Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 12. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 417. ANABAIA ANTICOSTIANA Clarke. See Camarotcechia decemplicata. Anabaia paraia Clarke. Anabaia paraia Clarke, Archives Mus. Nac. Rio de Janerio, 10, author's Eng. ed., 1900, p. 12, pi. 2, figs. 1-9. Silurian: Rio Trombetas, Brazil. ANACHEIRURUS Reed. Genotype: Eccoptocheile frederici Salter, Anacheirurus Reed, Geol. Mag., dec. 4, 3, 1896, p. 119. Anacheirurus? apollo (Billings). rheimrus Apollo Billings, Canadian Nat. Geol., 5, 1860, p. 322, fig. 28; Geol. Canada, Geol. Surv. Canada, 1863, p. 239, fig. 275; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 413, fig. 397. Ceraurus (Cyrtometopus) apollo Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738. Pseudosphaerexochus apollo Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 36, pi. 4, figs. 1, 2. 44 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Anacheirurus? apollo Continued. Anacheirurus? apollo Raymond and Barton, Bull. Mus. Comp. Zool., 54, No. 20, 1913, p. 543 (gen. ref.). Amphion Cayleyi Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 239, fig. 277; PaL Foss., 1, Geol. Surv. Canada, 1865, p. 413, footnote, fig. 398. Canadian or Ozarkian? (Levis-erratic) : Point Levis, Quebec. ANAPHRAGMA Ulrich and Bassler. Genotype: A. mirabile Ulrich and Bassler. Anaphragma Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 49. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 297. Anaphragma mirabile Ulrich and Bassler. Anaphragma mirabile Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 49, pi. 13, figs. 9-11. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 298, 299. fig. 183. Richmond: Wilmington, Illinois (Fern vale); Delafield and Iron Ridge, Wis- consin (Maquoketa); Island of Dago, Baltic Sea (Lyckholm). Cotypes and plesiotype: Cat. Nos. 43218, 57385, U.S.N.M. ANASTROPHIA Hall. Genotype: Pentamerus verneuili Hall. Brachymerus Shaler (not Dejean, 1834), Bull. Mus. Comp. Zool., 4, 1865, p. 69. Zittel, Handb. Pal., 1, Munich, 1880, p. 694. Koken, Die Leitfossilien, Leipzig, 1896, p. 244. Anastrophia Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal. New York, 4, 1867, p. 374. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv. 1889, p. 47. Miller, N. A. Geol. Pal., 1889, p. 333. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 224; 13th Ann. Rep. New York State Geol., 1895, p. 839. Schuchert, Zittel-Eastman Textb. Pal., 1,. 1900, p. 321. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 189; Bull. New York State Mus., 9, 1901, p. 189. Anastrophia brevirostris (Hall). ?Terebratula brevirostris Sowerby, Murchison's Sil. Syst., 1839, p. 631, pi. 13, fig. 15. Atrypa brevirostris? Hall, Pal. New York, 2, 1852, p. 278, pi. 58, fig. 1. Pentamerus brevirostris Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 77. Rhynchonella brevirostris Billings, Geol. Canada, 1863, p. 315, fig. 324. Lesley, Geol. Surv. Pennsylvania Rep. P 4, 1889, p. 884, fig. Anastrophia brevirostris Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 142. Grabau, Bull. New York State Mus., 45, 1901, p. 190, fig. 102; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 190, fig. 102. Clinton (Rochester): Lockport, etc., New York. ANASTROPHIA? HEMIPLICATA Winchell and Schuchert. See Parastrophia hemiplicata. ANASTROPHIA? HEMIPLICATA var. ROTUNDA Winchell and Schuchert. See Parastrophia hemiplicata rotunda. Anastrophia internascens Hall. Anastrophia verneuili Hall (not Hall, 1859), 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1876, pi. 26, figs. 41-49. Anastrophia internascens Hall, ibid., 1879, p. 168, pi. 26, figs. 41-49; llth Rep. State Geol. Indiana, 1882, p. 311, pi. 26, figs. 41-49. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 47, pi. 32, figs. 17-20. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 32, pi. 3, figs. 14-16. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 224, pi. 63, fig. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 45 Anastrophia internascens Continued. 30, Miller, N. A. Geol. Pal., 1889, p. 333, text fig. 538. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 434, pi. 2, fig. 10. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 272, fig. 329. Niagaran: Waldron, Indiana, and Newsom, Tennessee (Waldron and Laurel); Louisville, Kentucky (Louisville); Wabash, Indiana; Milwaukee, Wisconsin. Plesiotype.-Vat. No. 51336, U.S.N.M. Anastrophia interplicata (Hall). Atrypa interplicata Hall, Pal. New York, 2, 1852, p. 275, pi. 57, fig. 2. Pentamerus interplicatus Hall, 12th Rep. New York State Cab. Nat. Hist. 1859, p. 77. Safford, Geol. Tennessee, 1869, p. 315, fig. 7. Anastrophia interplicata Miller, Amer. Pal. Fossils, 1877, p. 104. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 224. Grabau, Bull. New York State Mus., 45, 9, 1901, p. 190, fig. 101; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 190, fig. 101. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 272, fig. 238. Niagaran: Lockport, etc., New York (Rochester); Louisville, Kentucky; Tennes- see; Wisconsin. ANASTROPHIA REVERSA Miller. See Parastrophia reversa. ANASTROPHIA? SCOFIELDI W T inchell and Schuchert. See Parastrophia scofieldi. ANASTROPHIA VERNEUILI Hall. See Anastrophia internascens. ANATINA? SINUATA Hall. See Ilionia sinuata. ANAZYGA Davidson. See Zygospira Hall. ANCISTROCERAS Boll. Genotype: A. undulatum Boll. Ancistroceras Boll, Archiv. des Vereins der Freunde der Naturgisch. in Mecklen- burg, 11, 1857, p. 87. Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 509. Remele, Zeits. d. d. geol. Gesell., 33, 1881, p. 184; ibid., 34, 1882, p. 123. Noetling, Jahrb. d. k. Preuss. Geol. Landesans. u. Bergak. fur 1883, 1884, p. 122, 130. Koken, Die Leitfossilien, Leipzig, 1896, p. 50. Ancistroceras? dyeri Hyatt. Ancistroceras? dyeri Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 511. Niagaran (Racine) : Chicago, Illinois. ANGELLUM Miller. See Cyrtodonta Billings. ANISOCRINUS Angelin. Genotype: A. interradiatus Angelin. Anisocrinus Angelin, Icon. Crin. Suec., 1878, p. 13. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, Rev. Pal., 1, 1879, p. 37. Zittel, Handb. d. Pal., 1, 4, 1879, p. 356. Bather, Treatise on Zool., 3, 1900, p. 189. Springer, Jour. Geol., 14, 1906, p. 479. Anisocrinus greenei (Miller and Gurley). Lecanocrinus greenei Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 8, 1896, p. 52, pi. 3, fig. 28. Miller, N. A. Geol. Pal., 2d App., 1897, p. 748 fig., 1363. Anisocrinus greenei Springer, Jour. Geol., 14, 1906, p. 480, pi. 6, fig. 11; Mon. Crin. Flex., Smiths. Inst. (in press). Niagaran: Near Louisville, Kentucky (Louisville); Decatur County, Tennessee (Brownsport). 46 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Anlsocrinus oswegoensis (Miller and Gurley). Lecanocrinus oswegoensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 4, 1894, p. 33, pi. 3, figs. 15-17. Anisocrinus oswegoensis Springer, Jour. Geol., 14, 1906, p. 480, pi. 6, fig. 12; Mon. Grin. Flex., Smiths. Inst. (in press). Niagaran: Oswego, Illinois. ANISOPHYLLUM Edwards and Haime. Genotype: A. agassizi Edwards and Haime. Anisophyllum Edwards and Haime, Mon. Polyp. Foss. Ter. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), pp. 165, 354. Pictet, Traite Pal., 2d ed., 4, 1857, p. 453. Milne-Edwards, Hist. Corall., 3, 1860, p. 354. Dybowski, Archiv. Natur. Liv.-Ehst. und Kurl., 5, 1873, pp. 335, 396. Zittel, Handb. Pal., 1, 1879, p. 229. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 370. Miller, N. A. Geol. Pal., 1889, p. 172. Sherzer, Amer. Geol., 7, 1891, pp. 278-285. Anisophyllum agassizi Edwards and Haime. Anisophyllum agassizi Edwards and Haime, Mon. Polyp. Foss. Ter. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), p. 351, pi. 1, figs. 2, 2a. Pictet, Traite Pal., 2d ed., 4, 1857, p. 453, pi. 107, fig. 19. Milne-Edwards,- Hist. Nat. Corall., 3, 1860, p. 355. Niagaran (Brownsport) : Perry County, Tennessee. Anisophyllum? bilamellatum Hall. Anisophyllum? bilamellatum Hall, 35th Rep. New York State Mus. Nat, Hist., 1884, p. 413 (ext. 1882, p. 9). Niagaran (Louisville): Louisville, Kentucky. Anisophyllum trifurcatum Hall. Anisophyllum trifurcatum Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 413 (ext. 1882, p. 9); 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 273, pi. 15, figs. 7, 8. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 26, text figs. Niagaran (Louisville): Louisville, Kentucky. Anisophyllum unilargum Hall. Anisophyllum unilargum Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 412 (ext. 1882, p. 8); 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 272, pi. 15, figs. 5, 6. Miller, N. A. Geol. Pal., 1889, p. 172, text fig. 134. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 26, text figs. Niagaran (Louisville): Louisville, Kentucky. ANODONTOPSIS (part) Meek. See Cycloconcha Miller and Ischyrodonta Ulrich. ANODONTOPSIS McCoy. Genotype: A. angustifrons McCoy. Anodontopsis, McCoy, Ann. Mag. Nat. Hist., 2d ser., 7, 1851, p. 53; Cont. British Pal., 1854, p. 188; Brit. Rocks and Foss., 1854, p. 270. Pictet, Traite Pal., 2d ed., 3, 1855, p. 533. Zittel, Handb. Pal., 2, 1881, p. 64. Miller, N. A. Geol. Pal., 1889, p. 462. Anodontopsis austrina Clarke. Anodontopsis austrina Clarke, Archiv. Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 16, pi. 2, fig. 12. Silurian: Rio Trombetas, Brazil. Anodontopsis concinna Whiteaves. Anodontopsis concinna Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 1, 1884, p. 12, pi. 2, fig. 4; pi. 7, figs. 4, 4a; ibid., 3, pt. 2, 1895, p. 67 (loc. occ.). Niagaran (Guelph): Gait and Durham, Ontario. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 47 ANODONTOPSIS MILLERI Meek. See Cycloconcha milleri. Anodontopsis putilla Clarke. Anodontopsis putilla Clarke, Archiv. Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 16, pi. 2, figs. 10, 11. Silurian: Rio Trombetas, Brazil. ANODONTOPSIS? UNIONOIDES Meek. See Ischyrodonta imionoides. Anodontopsis wabashensis Kindle and Breger. Anodontopsis wabashensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 453, pi. 10, figs. 5-7. Niagaran: Wabash, Indiana. ANOLOTICHIA Ulrich. Genotype: Anolotichia ponderosa Ulrich. Anoloticha Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 381, 473; Geol. Minnesota, 3, 1893, p. 326; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 268. Nickles and Bass- ler, Bull. U. S. Geol. Surv., 173, 1900, p. 24. Grabau and Sliimer, N. A. Index Fossils, 1, 1907, p. 123. Bassler, Bull. U. S..Nat. Mus., 77, 1911, p. 91; Zittel-Eastman Textb. Pal., 1913, p. 328. Anolotichia impolita (Ulrich). Crepipora impolita Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 77. Anolotichia impolita Ulrich, Geol. Minnesota, 3, 1893, p. 327, pi. 28, figs. 15-20; Zittel's Textb. Pal. (Eng. ed.), 1896, p. 268, fig. 437a-c. Sardeson, Jour. Geol., 9, 1901, p. 13, pi. A, fig. 12. Grabau and Sliimer, N. A. Index Fossils, 1, 1907, p. 123, fig. 182a. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 97, figs. 32, 33, pi. 7, fig. 11. Zittel-Eastman Textb. Pal., 1913, p. 328, figs. 465a-c. Black River (Decorah): Minneapolis, etc., Minnesota; Iowa. Ordovician (Kuckers): Near Jewe, Esthonia, Russia. Cotypes and plesiotype.Cat. Nos. 43276, 57204, U.S.N.M. Anolotichia ponderosa Ulrich. Anolotichia ponderosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 320, fig. 8c; p. 473, pi. 41, figs. 3-3d; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 268, fig. 437d. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 465d. Richmond (Fernvale): Wilmington, Illinois; Tennessee. Cotype.Czt. No. 43275, U.S.N.M. ANOMALOCRINUS Meek and Worthen. Genotype: Heterocrinus? incurvus Meek and Worthen. Heterocrinus(?) subgenus Anomalocrinus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 2d ser., 9, 1865, p. 148. Hybocrinus (Anomalocrinus) Meek and Worthen, Geol. Rep. Illinois, 3, 1868, p. 327. Anomalocrinus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 17. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 295 (Rev. Pal., pt. 1, p. 72); ibid., 1886, pp. 110, 111, 116, 135; ibid., 1890, pp. 378, 380. Zittel, Handb. Pal., 1, 1879, p. 350. Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. Ill; ibid., 5, 1882, p. 38, pi. 5, figs. 3, 3a, 3e. Miller, N. A. Geol. Pal., 1889, p. 223. Bather, Ann. Mag. Nat. Hist., 6th ser, 5, 1890, p. 15, fig. 11; p. 332, pi. 14, fig. 8; pi. 15, fig. 10; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 20; Treatise on Zool. (Lankester), pt. 3, 1900, p. 146, fig. 58, 4. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 152. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 710. Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p. 501. Zittel, Grundzuge Pal., 1, 1910, p. 151. Springer, Zittel-Eastman Textb. Pal., 1913, p. 213. 48 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ANOMALOCRINUS Continued. Ataxiacrimis Lyon, Trans. Amer. Phil. Soc., n. s., 13, 1869, p. 463. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 247 (Rev. Pal., pt. 2, p. 73). Ataxocrinus Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 146. Zittel, Grundzuge Pal., 1, 1910, p. 151. Anomalocrinus caponiformis (Lyon). Ataxiacrinus caponiformis Lyon, Trans. Amer. Phil. Soc., n. s., 13, 1869, p. 464, pi. 27, figs. 1-3. Anomalocrinus caponiformis Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879 p. 109, pi. 9, figs. 4-4a. Maysville (Corryville): Cincinnati, Ohio, and vicinity. Anomalocrinus incurvus (Meek and Worthen). Heterocrinus (Anomalocrinus) incurvus, Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 148. Hybocrinus? (Anomalocrinus) incurvus Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 327, text fig., pi. 4, figs. 3a, b. Anomalocrinus incurvus Meek and Worthen, Geol. Surv. Ohio, 1, pt. 2, 1873, p. 17, pi. 2, figs. 6a-f. MiUer, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 112; N. A. Geol. Pal., 1889, p. 224, fig. 246. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 716, pi. 3, figs. 1-lc. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 501, fig. 1813. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. ANOMALOCYSTIS Haeckel. See Anomalocystites Hall. ANOMALOCTSTITES Hall. Genotype: A. cornutus Hall. Anomalocystites Hall, Arner. Jour. Sci. Arts, 2d ser., 25, 1858, p. 279; Pal. New York, 3, 1859, p. 132 Meek (part), Geol. Surv. Ohio, Pal.,1, 1873, p. 43 Woodward, Geol. Mag., dec. 2, 7, 1880, pp. 193, 199. Barrande, Syst. Sil. Center Boheme, 7, pt. 1, 1887, p. 89. Miller, N. A. Geol. Pal., 1889, p. 224. Jaekel, Zeits. d. d. geol.Ges., 52, 1900, p. 668. Zittel-Eastman Textb. Pal., 1, 1900, p. 186. Bather, Treatise 'on Zool. (Lankester), pt. 3, 1900, p. 51. Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 204. Zittel, Grundzuge Pal., 1, 1910, p. 182. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 150. Ateleocystites Woodward (part), Geol. Mag., dec. 2, 7, 1880, p. 193. Anomalocystis Haeckel, Amphoroideen und Cystoideen, 1896, p. 40. ANOMALOCYSTITES (ATELEOCYSTITES) BALANOIDES Meek. See Ateleocystites bal- anoides. Anomalocystites cornutus Hall. Anomalocystites cornutus Hall, Pal. New York, 3, 1859, p. 133, pi. 7A, figs. 5-7. Woodward, Geol. Mag., dec. 2, 7, 1880, p. 193, pi. 6, figs. 4, 5. Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 206, pi. 40, figs, 4, 5. Anomalocystis cornuta Haeckel, Amphoroideen und Cystoideen, 1896, p. 41, pi. 2, figs. 8, 9. Helderbergian (Manlius transition beds or Coeymans): Litchfield, Herkimer County, New York. Plesiotypes.G&t. Nos. 35078, 35079, U.S.N.M. ANOMALOCYSTITES HUXLEYI Miller. See Ateleocystites huxleyi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 49 ANOMALODONTA Miller. Genotype: A. gigantea Miller. Anomalodonta, Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 16; 2, 1875, p. 280. White, Amer. Jour. Sci. Arts, 3d ser., 8, 1874, pp. 218, 219. Zittel, Handb. Pal., 2, 1881, p. 36. Miller, N. A. Geol. Pal., 1889, p. 462. Ulrich, Geol. Surv. Ohio, 7, 1893, p. 636. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 978. Grabau and Shimer, N. A. Index Fossils, 1 1909. p. 430. Anomalodonta alata (Meek). Ambonychia (Megaptera) alata Meek, Proc. Acad. Nat. Sci. Philadelpliia, 1872, p. 319; Geol. Surv. Ohio, Pal., 1, 1873, p. 131, pi. 11, fig. 9; pi. 12, fig. 10. Megaptera alata White, Cincinnati Quart. Jour. Sci., 1, 1874, p. 327. Anomalodonta alata Miller, Cincinnati Quart. Jour. Sci., 1874, p. 16, pp. 223, 328. Ulrich, Geol. Surv. Ohio, 7, 1893, p. 638, pi. 46, fig. 1. Orabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431. Richmond (Arnheim and Waynesville): Morrow, Clarksville, etc., Ohio; Ver- sailles, etc., Indiana. Pleswtype.Cat. No. 46087, U.S.N.M. Anomalodonta casei (Meek and Worthen). Ambonychia (Megaptera) Casei Meek and Worthen, Proc. Chicago Acad. Sci., 1, 1866, p. 22. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 133, pi. 11, fig. 8. White, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1880, p. 491, pi. 1, figs. 1, 2. Megaptera Casei Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 337, pi. 4, fig. 9a, b. Anomalodonta casei Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 15, 16, p. 224. Richmond (Whitewater): Richmond, Indiana. Anomalodonta costata (Meek). Ambonychia costata James, Cat. Low. Sil, Fossils Cincinnati Group, 1871, p. 13 (not described). Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 130, pi. 12, figs. 5a, b, c Miller, Cincinnati Quart. Jour. Sci., 1, p. 15. Anomalodonta costata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 987, pi. 62, figs. 6-6a. Richmond (Arnheim and Waynesville): Clarksville, etc., Ohio. Anomalodonta gigantea Miller. Anomalodonta gigantea Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 17, figs. 7, 8, 9; also p. 327; N. A. Geol. Pal., 1889, p. 462, figs. 776, 777; p. 463, fig. 778. Ulrich, Geol. Surv. Ohio, 7, 1895, p. 637, pi. 50, figs. 1 to 4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 968, pi. 43, figs. 1-lb. Richmond (Arnheim- Whitewater) : Versailles, etc., southeastern Indiana; Ohio. Plesiotype.C&t. No. 46088, U.S.N.M. Anomalodonta plicata Ulrich. Anomalodonta plicata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 638, pi. 46, figs. 2, 3. Maysville (Corryville) : Cincinnati, Ohio. Holotype.G&t. No. 46089, U.S.N.M. ANOMALOIDES Ulrich. Genotype: A. reticulatus Ulrich. Anomaloides Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 92. James, J. F., ibid., 8, 1885, pp. 165, 166. Ulrich, Amer. Geol., 1, 1888, p. 324. Anomalospongia Ulrich, Geol. Minnesota, 3, pt. 1, 1895, pp. 68-69 (ext. 1893). 84243 Bull. 9215 1 50 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Anomaloides reticulatus Ulrich Anomaloides reticulatus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 92, pi. 4, figs. 6, 6a-b. Anomalospongia reticulata Ulrich, Geol. Minnesota, 3, pt. 1, 1895, p. 71, fig. 1, pi. F, figs. 13-15 (ext. 1893). Receptaculites reticulatus James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1885, p. 166; 9, 1886, p. 249; 14, 1891, p. 62. Maysville (Mt. Hope): Covington, Kentucky. Cotypes. Cat. No. 46546, U.S.N.M. ANOMALOSPONGIA Ulrich. See Anomaloides Ulrich. ANOMIA BILOBA Linnaeus. See Bilobites bilobus. ANOMIA RETICULARIS Linnaeus. See Atrypa reticularis. ANOMITES EXPORRECTUS Wahlenberg. See Cyrtia exporrecta. ANOMITES LENTICULARIS Wahlenberg. See Eoorthis (Orusia) lenticularis. ANOMITES TRANSVERSALIS Wahlenberg. See Plectambonites transversalis. ANOMOCARE Angelin. Genotype: A. leave Angelin. Anomocare Angelin, Pal. Scandinavica, 3d ed., 1878, p. 24. Zittel, Handb. Pal., 2, 1885, p. 601. Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 60. Koken, Die Leitfossilien, Leipzig, 1896, p. 22. Walcott, Smiths. Misc. Coll., 57, No. 4, 1911, p. 87; Research in China, 3, Carnegie Institution, 1913, p. 187 (figures genotype). Anomocare parrula Weller. Anomocare parvula Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 120, pi. 3, fig. 12. Upper Cambrian or Ozarkian (Kittatinny): Newton, New Jersey. ANOMOCARE SPINIGER Matthew. See Acantholenus spiniger. Anomocare stenotoides (Matthew). Leptoplastus stenotoides Matthew, Canadian Rec. Sci., 3, 1889, p. 486, fig. 2. Anomocare stenotoides Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 61, pi. 13, fig. 3 a-d; Bull. Nat. Hist. Soc. New Brunswick, 16, 1898, p. 42; Trans. Royal Soc. Canada, 2d ser., 4, sec. 4, 1898, p. 139, pi. 2, figs. 5 a-i. Canadian (Bretonian Div. C 3b): Long Island, Kennebecasis River, New Brunswick. ANOMOCARELLA Walcott. Genotype: A. chinensis W^alcott. Anomocarella Walcott, Proc. U. S. Nat. Mus., 29, 1905, p. 54; Smiths. Misc. Coll., 57, 1911, p. 91; Research in China, 3, Carnegie Inst., 1913, p. 195. Anomocarella belli (Billings). Dikelocephalus Belli Billings, Canadian Nat. Geol., 5, 1860, p. 311, fig. 7; Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 260; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 403, fig. 378. Dicellocephalus Belli Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Anomocarella belli Walcott, Smiths. Misc. Coll., 57, 1914, p. 349 (gen. ref.). Ozarkian? (Levis erratic): Point Levis, Quebec. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 51 Anomocarella? oweni (Billings). Dikelocephalus Oweni Billings, Canadian Nat. Geol. 5, 1860, p. 310, fig. 8; Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 259; Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 402, fig. 379. Dicellocephalua Oweni Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Anomocarella? oweni Walcott, Smiths. Misc. Coll., 57, 1914, p. 251 (gen. ref.). Ozarkian? (Levis erratic): Point Levis, Quebec. Anomocarella? planlfrons (Billings). Dikelocephalus planifrons Billings, Canadian Nat. Geol., 5, 1860, p. 309, fig. 6; Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 256; Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 401, fig. 377. Dicellocephalus planifrons Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Anomocarella? planifrons Walcott, Smiths. Misc. Coll., 57, 1914, p. 352 (gen. ref.). Ozarkian? (Levis erratic) : Point Levis, Quebec. ANOMOCLONELLA Rauff. Genotype: A. zitteli Rauff. Anomoclonella Rauff, Palseontographica, 41, 1895, p. 226. Anomoclonella zitteli (Rauff). Anomoclonella Zitteli Rauff, Palaeontographica, 40, 1894, pi. 8, figs. 1-4; 41, 1895, pp. 226-242, figs. 78-83. Niagaran (Brownsport) : Decatur County, Tennessee. ANOPLOTHECA (part) of authors. See Coelospira Hall. ANOPTERA Ulrich. Genotype: A. miseneri Ulrich. Anoptera Ulrich, Geol. Surv. Ohio, 7, 1893, p. 649. Anoptera miseneri Ulrich. Anoptera miseneri Ulrich, Geol. Surv. Ohio, 7, 1893, p. 650, pi. 50, figs. 5-9. Richmond: Clarksville, Ohio ( Waynesville) ; Richmond, Indiana (Whitewater). CotypesCat. Nos. 46090, 46091, U.S.N.M. ANORTH ASTER Schuchert. Genotype: Palaeastermiamiensis Miller Anorthaster Schuchert in Freeh, Cat. FOBS., 1, Anim., pt. 3, 1914, p. 11 (nom. nud.); Bull. U. S. Nat. Mus., 88, 1915, p. 125. Anorthaster miamiensls (Miller). Palaeaster miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 143, pi. 4, fig. 3. James, Ibid. 18, 1895, p. 129. Anorthaster miamiensis Schuchert, in Freeh, Cat. Foss., 1, Anim., pt. 3, 1914, p. 11; Bull. U. S. Nat. Mus., 88, 1915, p. 127, pi. 13, fig. 4; pi. 20, fig. 1. Richmond (Waynesville or Liberty) : Waynesville, Ohio. Holotype.Ca.t. No. 40880, U.S.N.M. ANTHASPIDELLA Ulrich and Everett. Genotype.' A. mammulata Ulrich and Everett. Anthaspidella Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 256. Miller, N. A. Geol. Pal., 1889, p. 153. Anthaspidella fenestrata Ulrich and Everett. Anthaspidella fenestrata, Ulrich and Everett, Geol. Surv. Illinois, 1890, p. 264, pi. 2, fig. 1. Black River (Platteville): Near Dixon, Illinois. 52 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Anthaspidella flrma Ulrich and Everett. Anthaspidella firma Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 263, pi. 2, figs. 3, 3a. Black River (Platteville): Near Dixon, Illinois. Anthaspidella florifera Ulrich and Everett. Anthaspidella florifera Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 259, pi. 1, fig. 2; pi. 4, fig. 2. Black River (Platteville): Near Dixon, Illinois. Anthaspidella grandis Ulrich and Everett. Anthaspidella grandis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 262, pi. 2, figs. 2. 2a. Black River (Platteville): Near Dixon, Illinois. Anthaspidella? magniflca Ulrich and Everett. Anthaspidella? magnifica Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 265, pi. 8, figs. 2, 2a-c. Black River (Platteville): Near Dixon, Illinois. Anthaspidella mammulata Ulrich and Everett. Anthaspidella mammulata Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 258, pi. 1, figs. 1, la-d. Black River (Platteville): Near Dixon, Illinois. Anthaspidella obliqua Ulrich and Everett. Anthaspidella obliqua Ulrich and Everett, Geol. Surv. -Illinois, 8, 1890, p. 265, pi. 4, figs. 1, la. Black River (Platteville) : Near Dixon, Illinois. Anthaspidella parvistellata Ulrich and Everett. Anthaspidella parvistellata Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 260, pi. 1, fig. 3. Black River (Platteville): Near Dixon, Illinois. Anthaspidella scutula Ulrich and Everett. Anthaspidella scutula Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 261, pi. 3, fig. 1, la. Black River (Platteville): Near Dixon, Illinois. ANTHES Goldfuss. See Peltura Milne-Edwards. ANTHOCRINUS Miiller. See Cyathocrinus Miller. ANTHOCYSTIS Haeckel. See Callocystites Hall. ANTHOCYSTIS HALLIANA Haeckel. See Callocystites jewetti. AXTHOPHYLLUM DENTicuLATUs Goldfuss. See Zaphrentis denticulatus. ANTHOPHYLLUM EXPANSUM Owen. See Ptychophyllum expansuin. ANTIRHYNCHONELLA Quenstedt. See Conchidium Linnaeus. APARCHITES Jones. Genotype: A. whiteavesi Jones. Aparchites Jones, Ann. Mag. Nat. Hist., 6th ser., 3, 1889, p. 384. Miller, N. A. Geol. Pal., 1889, p. 529. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 643; Zittel-Eastman Textb. Pal., 1, 1900, p. 644. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 343. Bassler, Zittel-Eastman Textb. Pal., 2d. ed., 1913, p. 737. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 53 Aparchites arrectus Ulrich. Aparchites arrectus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 646, pi. 43, figg. 35, 36. Black River (Decorah): St. Paul, Minnesota, Holotype Cat. No. 41836, U.S.N.M. Aparchites billings! (Jones). Leperditia Billingsi Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 345, pi. 20, fig. 9. Aparchites billingsii Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 231. Silurian or Devonian: Lake Winnepegosis, Canada. Aparchites chatfleldensis Ulrich. Aparchites chatfieldensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 646, pi. 43, figs. 37, 38. Black River (Decorah): Chatfield, Minnesota. Holotype. Cat. No. 41829 U.S.N.M. Aparchites concinnus (Jones). Cytheropsis concinna Jones, Ann. Mag. Nat. Hist., 3d ser., 1,1858, p. 249, pi. 10, figs. 3, 4; Geol. Surv. Canada, dec. 3, 1858, p. 99. Primitia concinna Jones and Holl, Ann. Mag. Nat. Hist., 3d ser., 16, 1865, p. 424. Aparchites concinnus Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 99. Black River (Leray): Pauquettes Rapids, Allumette Island, Ottawa River, Canada. Aparchites ellipticus Ulrich. Aparchites ellipticus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 644, pi. 43, figs. 15-17. Black River (Decorah): Minneapolis, Minnesota. Cotypes Cat. No. 41832 U.S.N.M. Aparchites flmbriatus (Ulrich). Leperditia fimbriata Ulrich, Amer. Geol., 10, 1892, p. 268, pi. 9, figs. 34-36. Aparchites fimbriatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645, pi. 45, figs. 10--12. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 343, fig. 1657b. Richmond (Maquoketa): Spring Valley, Minnesota. Holotype. Cat. No. 41834, U.S.N.M. Aparchites gordoni Ulrich and Bassler. Aparchites gordoni Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 515, pi. 95, figs. 1-3. Helderbergian (Keyser): Cumberland, Maryland. Holotype. Cat. No. 53283, U.S.N.M. Aparchites granilabiatus (Ulrich). Leperditia granilabiata Ulrich, Amer. Geol., 10, 1892, p. 267, pi. 9, figs. 31-33. Aparchites granilabiatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 644, pi. 45, figs. 21-23. Black River (Decorah): St. Paul, Minnesota. Holotype. Cat. No. 41828, U.S.N.M. Aparchites granilabiatus neglectus Ulrich. Aparchites granilabiatus neglectus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645. Black River (Decorah): Minneapolis, Minnesota. Cotypes. Oat. No. 41835, U.S.N.M. 54 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ap arc-kites millepunctatus (Ulrich). Leperditia millepunctata Ulrich, Amer. Geol., 10, 1892, p. 268, pi. 9, figs. 37-39. Aparchites millepunctatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645, pi. 45, figs. 16-18. Black River (Decorah): Fountain, Minnesota. Holotype.C&t. No. 41837, U.S.N.M. Aparchites minutissimus (Hall). Leperditia (Isochilina) minutissima Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 231, pi. 8, fig. 13 (adv. sheet 1871, p. 7). Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 102, pi. 4, fig. 4. Leperditia minutissima Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 122. Aparchites minutissimus Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2, 1889, p. 49, pi. 9, fig. 5. Whiteaves, ibid., Pal. Foss., 3, pt. 2, 1895, p. 126 (loc. occ.). Eden-Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain, Manitoba, Anticosti, etc. Aparchites minutissimus robustus Ruedemann. Aparchites minutissimus var. robustus Ruedemann, Bull. New York State Mus., 49, 1901, p. 74, pi. 7, figs. 6-11. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Aparchites minutissimus trentonensis Ulrich. Aparchites minutissimus var. trentonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 646, pi. 43, figs. 18-20. Black River (Decorah) and Trenton (Prosser): Fountain, Cannon Falls, etc., Minnesota. Cotypes.C&t. Nos. 41302, 41303, U.S.N.M. Aparchites mundulus Jones. Aparchites mundulus Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 62, pi. 10, figs. 12a, b. Trenton: Falls of Lorette, Quebec. Aparchites oblongus Ulrich. Aparchites oblongus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 137, pi. 10, figs. lOa-lOc. Richmond (Arnheim): Middletown, Ohio. Holotype.C&t. No. 41811, U.S.N.M. Aparchites parvulus Jones. Aparchites parvulus Jones, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 230, pi. 22, figs. 4a-4c. Black River or Richmond: Little Black Island, Lake Winnipeg, Canada. Aparchites tyrrelli Jones. Aparchites Tyrrellii Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 62, pi. 13, figs. 14a-c. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 242 (loc. occ.). Black River or Richmond: Great Black Island, Like Winnipeg, Canada. APARCHITES UNICORNIS Ulrich. See Primitiella unicornis. Aparchites whiteavesi Jones. Aparchites Whiteavesi Jones, Ann. Mag. Nat. Hist., 6th ser., 3, 1889, p. 384, figs. 5, 6, pi. 17, fig. 10. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 230. Black River or Richmond: Lower Fort Garry, St. Andrew, Manitoba. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 55 APATOKEPHALUS Brogger. Genotype: Trilobites serratus Boeck. Apatokephalus Brogger, Nyt. Mag. f. Naturvid, 36, 1897, p. 184. Tramoria Reed, Quart. Jour. Geol. Soc. London, 55, 1899, p. 758, pi. 49, figs. 14-16; Geol. Mag., dec. 4, 7, 1900, p. 46. Apatokephalus corax (Billings). Dikelocephalus? corax Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 334, fig. 322a, b. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, foot- note. Ozarkian ? (Levis erratic): Point Levis, Quebec. Apatokephalus (in alls (Walcott). Dicellocephalus finalis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 89, pi. 12, figs. 12, 12a, 22. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Apatokephalus finalis Brogger, Nyt. Mag. f. Naturvid., 1897, p. 175, fig. 6a, p. 184. Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada. Cotypes Cat. No. 24563, U.S.N.M. APATOKEPHALUS MAGNIFICUS Brogger. See Hungaia magnifica. APATOKEPHALUS SCHLOTHEIMI Billings. See Remopleurides? schlotheimi. APHETOCERAS Hyatt. Genotype: A. americanum Hyatt. Aphetoceras Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 447. Miller, N. A. Geol. Pal., 2d App., 1897, p. 771. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 65. Aphetoceras americanum Hyatt. Aphetoceras americanum Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 447, pi. 6, figs. 5-8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 65. Canadian: Port au Choix, Newfoundland. Aphetoceras attenuatum Hyatt. Lituites farnsworthi Billings (part), Geol. Surv. Canada, Pal. Foss., 1, 1861, p. 21. Aphetoceras attenuatum Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 449. Ruede- mann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 475. Canadian (Beekmantown) : Phillipsburg, Missisquoi County, Quebec. Aphetoceras boreale Hyatt. Aphetoceras boreale Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 448, pi. 5, figs. 15-17. Canadian: Schooner Island, Newfoundland. Aphetoceras complanatum (Shumard). Lituites complanata Shumard, Trans. Acad. Sci. St. Louis, 2, 1863, p. 107. Eeyes, Missouri Geol. Surv., 5, 1895, p. 225. Aphetoceras complanatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.). Canadian ( Yellville) : Ozark County, Missouri. Aphetoceras farnsworthi (Billings). Lituites Farnsworthi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 21, fig. 24 (adv. sheets, 1861); Geol. Vermont, 2, 1862, p. 958, fig. 364; Rep. Econ. Geol., etc., Vermont, 1862, p. 230, fig. 364; Geol. Canada, Geol. Surv. Canada, 1863, p. 277, fig. 283. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 354, fig. 56 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Aphetoceras farnsworthi Continued. Aphetoceras farnsworthi Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 448. Ruede- mann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 473, fig. 24. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 65, fig. 1273. Canadian (Beekmantown) : Phillipsburg, Missisquoi County, Quebec. APHYLLOSTYLUS Whiteaves. Genotype: A. gracilis Whiteaves. Aphyllostylus Whiteaves, Ottowa Naturalist, 18, 1904, p. 113. Aphyllostylus gracilis Whiteaves. Aphyllostylus gracilis Whiteaves, Ottawa Nat., 18, 1904, p. 114; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 278, pi. 24, figs. 1, la. Niagaran: Stonewall, Manitoba. APIOCERAS Saemann. See Poterioceras McCoy. APIOCRINITE(?) Anthony. See Glyptocrinus decadactylus. APIOCYSTIS Haeckel. See Apiocystites Forbes. APIOCYSTTTES Hall. See Hallicystis Jaekel. APIOCYSTITES Jaekel. See Lepocrinites Conrad. APIOCYSTITES Forbes. Genotype: A. pentrematoides Forbes. Apiocystites Forbes, Mem. Geol. Surv. Great Britain, 2, pt. 2, 1848, pp. 501, 503. Hall, Pal. New York, 2, 1852, p. 242. Muller, Ann. Mag. Nat. Hist., 2d ser., 13, 1854, p. 248. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 298. Chapman, Canadian Jour., n. s., 2, 1857, p. 303. Hall, Pal. New York, 3, 1861, pp. 126, 151. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 354. Miller, N. A. Geol. Pal., 1889, p. 224. Jaekel, Stammesg. Pelmat., 1, The- coidea u. Cystoidea, Berlin, 1899, p. 279 (part). Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 210. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 154. Apiocystis Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 132. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 61. Zittel, Grundzuge Pal., 1, 1910, p. 187. Lepadocrinus Bather (part), Treatise on Zool. (Lankester), pt. 3, 1900, p. 61. APIOCYSTITES CANADENSIS Billings. See Callocystites canadensis. Apiocystites elegans (Hall). Apiocystites elegans Hall, Pal. New York, 2, 1852, p. 243, pi. 51, figs. 1-17. Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 282. Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 212, pi. 34, figs. 4, 5. Apiocystis elegans Haeckel, Amphorideen u. Cystoideen, 1896, pi. 3, figs. 4-9. Clinton (Rochester): Lockport, New York; Grimsby, Ontario. APIOCYSTITES GEBHARDII Jaekel. See Lepocrinites gebhardi. APIOCYSTITES HURONENSIS Billings. See Brockocystis huronensis. APIOCYSTITES IMAGO Hall. . See Hallicystis imago. APIOCYSTITES TECUMSETH Billings. See Brockocystis tecumseth. APLOCRINUS D'Orbigny. See Haplocrinus Steininger. APSIDOCERAS Hyatt. Genotype: Gyroceras (Lituites) magnificum Billings. Apsidoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 289. Miller, N. A. Geol. Pal., 1st App., 1892, p. 695. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 57 APSIDOCERAS INSIGNE Whiteaves. See Litoceras insigne. Apsldoceras magniflcum (Billings). Gyroceras (Lituites) magnificum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 307. Lituites? magnificum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 23 (loc. ref.). Apsidoceras magnificum Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 289. Richmond (English Head and Charleton) : Southwest End Lighthouse, Anticosti. ARABELLITES Hinde. Genotype: A. hamatus Hinde. Arabellites Hinde, Quart. Jour. Geol. Soc. London, 25, 1879, p. 377. Miller, N. A. Geol. Pal., 1889, p. 517. Orabau and Shimer, N. A. Index Fossils, 2, 1910, p. 240. Arabellites aciculatus James. Arabellites aciculatus James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 148, pi. 7, fig. E. Maysville (Fairmount): Near Loveland, Ohio. Arabellites ascialis Hinde. Arabellites ascialis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18, fig. 21, Cincinnatian (Pulaski): Toronto, Ontario. Arabellites cervicornis Hinde. Arabellites cervicornis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379, pi. 19, figs. 8, 12. Cincinnatian (Pulaski) : Toronto, Ontario. Arabellites cornutus Hinde. Arabellites cornutus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 377, pi. 18, figs. 13-15. Cincinnatian (Pulaski) : Toronto, Ontario. Arabellites crenulatus Hinde. Arabellites crenulatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379, pi. 19, fig. 9. Cincinnatian (Pulaski) : Toronto, Ontario. Arabellites cristatus Hinde. Arabellites cristatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 19, fig. 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1528g. Eunicites cristatus Miller, N. A. Geol. Pal., 1889, p. 518 (gen. ref.). Cincinnatian (Pulaski): Toronto, Ontario. Arabellites cuspidatus Hinde. Arabellites cuspidatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18, fig. 19. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1527a. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites elegans Hinde. Arabellites elegans Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 382, pi. 20, figs. 5, 7. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 241, fig. 1529b. Upper Medinan (Cataract): Toronto, Ontario. 58 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Arabellites gibbosus Hinde. Arabellites gibbosus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18, fig. 21. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1527c. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites hamatus Hinde. Arabellites hamatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 377, pi. 18, fig. 12. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 240, fig. 1526d. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites hindei James. Arabellites hindei James, Jour. Cincinnati Soc. Nat, Hist., 7, 1884, p. 149, pi. 7, fig. D. Maysville (Fairmount): Near Loveland, Ohio. Arabellites lunatus Hinde. Arabellites lunatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 19, fig. 4-6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1528d. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites? obliquus Hinde. Arabellites? obliquus Hinde, Quart. Jour. Geol. Soc. London, 1879, p. 379, pi. 19, fig. 15. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites ovalis Hinde. Arabellites ovalis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18, fig. 16. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites pectinatus Hinde. Arabellites pectinatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379, pi. 19, fig. 11. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites procursus Foerste. Arabellites procursus Foerste, Amer. Geologist, 2, 1888, p. 417, fig. 3; Geol. Surv. Ohio, Pal., 7, 1893, p. 517, fig. 3. Richmond (Elkhorn): Todds Fork, near Wilmington, Ohio. Arabellites quadratus Hinde. Arabellites quadratus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379, pi. 19, fig. 14. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites rectus Hinde. Arabellites rectus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18, fig. 18. Cincinnatian (Pulaski): Toronto, Ontario. Arabellites scutellatus Hinde. Arabellites scutellatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379, pi. 19, fig. 16. Cincinnatian (Pulaski): Toronto, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 59 Arabellites similis Hinde. Arabellites similis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 382, pi. 20, fig. 8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1529d. Upper Medinan (Cataract): Toronto, Ontario. ARACHNOCRINUS PISIFORMIS Meek and Worthen. See Lecanocrinus pisiformis. ARACHNOPHYLLUM Dana. See Strombodes Schweigger. ARCA Linnaeus. Not a Paleozoic genus. Area?? browni Salter. Area? Brownii Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 69, pi. 4, figs. 19, 20. Silurian: West slope of Mt. Illampu, Bolivia. Area?? gracills Hoek. Area gracilis Hoek, Neues Jahrb., Min., Geol., Pal., 34, 1912, pi. 8, fig. 17. Ordovician: Totoropampa, Bolivia. ARCA POSTSTRIATA D'Orbigny. See Lyrodesma postetriatum. ARCH^EOCRINUS Wachsmuth and Springer. Genotype: Glyptocrinus lacunosus Billings. Archaeocrinus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 363 (Rev. Pal., pt. 2, p. 189); ibid., 1885, p. 318; ibid., 1890, p. 366 Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 217 Carpenter, Phil. Trans. Hoy. Soc. London, 174, 1884, pp. 929, 930. Miller, N. A. Geol. Pal., 1889, p. 225. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 253. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 200, fig. 125 Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 145. Weller, Bull. Chicago Acad. Nat. Hist. Surv., 4, pt. 1, 1900, p. 88, fig. 41. Zittel, Grund- zuge Pal., 1, 1910, p. 161. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 550. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 188. ARCELEOCRINUS ASPERATUS Wachsmuth and Springer. See Deocrinus asperatus. ARCH^OCRINUS ASPERATUS Miller and Gurley. See Diabolocrinus asperatus. Archaeocrinus? deliculatus Hudson. Archaeocrinus ? deliculatus Hudson, Bull. New York State Mus., 107, 1907, p, 129, fig. 8. Chazyan (Valcour): Valcour Island, Lake Champlain, New York. Archseocrinus depressus Weller. Archaeocrinus depressus Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4, pt. 1, 1900, p. 89, pi. 3, figs. 9-10. Niagaran (Racine): Bridgeport, Cicero, and Hawthorne, Illinois. Arehseocrinus desideratus W. R. Billings. Archseocrinus desideratus W. R. Billings, Trans. Ottawa Field Nat. Club, 2, 1885, p. 249, pi. fig. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 257, pi. 10, figs. 4a, b Bather, Treatise on Zool., pt. 3, Echino- derma, London, 1900, p. 200, fig. 125. Trenton (Curdsville) : Ottawa, Ontario. Archaeocrinus knoxensis Miller and Gurley. Archaeocrinus knoxensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895, p. 34, pi. 3, fig. 12-15. Chazyan (Ottosee) : Knox County, Tennessee. 60 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Archgeocrinus lacunosus (Billings). Glyptocrinus lacunosus Billings, Geol. Surv. Canada, Rep. Progress for 1853-1856, 1857, p. 261; Geol. Surv. Canada, dec. 4, 1859, p. 61, pi. 8, figs. 3a-3e. Archseocrinus lacunosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har- vard, 20, 1897, p. 255, pi. 10, fig. 1. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 11 (loc. occ.). Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. Archseocrinus margin at us (Billings). Glyptocrinus marginatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 260; Geol. Surv. Canada, dec. 4, 1859, p. 59, pi. 9, fig. la. Archseocrinus marginatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har- vard, 20, 1897, pp. 254, 275, pi. 20, fig. 2 Trenton (Curdsville): Ottawa, Ontario. Archseocrinus microbasilis (Billings). Thysanocrinus (Rhodocrinus) microbasilis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 264. Rhodocrinus microbasilis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 63, pi. 6, fig. 2. Archseocrinus microbasilis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool. Har- vard, 20, 1897, p. 256, pi. 10, fig. 2a-c. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 11 (loc. occ.). Trenton (Curdsville): Ottawa and Kirkfield, Ontario. Archseocrinus parvus Miller and Gurley. Archseocrinus parvus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 21, pi. 2, figs. 26-28. Miller, N. A. Geol. Pal., 1897, 2d App., p. 734, fig. 1298. Chazyan (Ottosee): Knox County, Tennessee. Archaeocrinus peculiaris Miller and Gurley. Archaeocrinus peculiaris Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 17, pi. 2, figs. 1-3. Miller, N. A. Geol. Pal., 1897, 2d App., p. 734, figs. 1299-1300. Chazyan (Ottosee): Knox County, Tennessee. Archseocrinus pyriformis (Billings). Thysanocrinus (Rhodocrinus) pyriformis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 262. Rhodocrinus pyriformis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 61, pi. 6, figs, la-d. Archseocrinus pyriformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190) (gen. ref.); Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 255, pi. 10, fig. 3a, b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 550. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 11. Trenton (Curdsville): Ottawa, Montreal, and Kirkfield, Canada. ARCHAEOCRINUS? RAMULOSUS Wachsmuth and Springer. See Glyptocrinus ramulosus. ARCH.EOCRINUS SCULPTUS Wachsmuth and Springer. See Diabolocrinus vesperalis. ARCILEOCYATHUS MINGANENSIS Billings. See Archseoscyphia minganensis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 61 ARCHJSOSCYPHIA Hinde. Genotype: Archaeocyathus minganensis Billings. Archaeocyathus (part) Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 354. Archaeoscyphia Hinde, Quart. Jour. Geol. Soc. London, 45, 1894, p. 142. Rauff, Palaeontographica, 40, 1894, p. 238. Archaeoscyphia inlnganensis (Billings). Petraia minganensis Billings, Canadian Nat. Geol., 4, 1859, p. 346. Archaeocyathus Minganensis Billings, New sp. L. Sil. Foss., 1861, p. 5; Pal. Foss. 1, Geol. Surv. Canada, 1865, p. 354, figs. 342a, b, 343a, 344; Geol. Vermont, 2, 1861, p. 945; Rep. Econ. Geol., etc., Vermont, 1862, p. 217. Nicholson, Man. Pal., 1872, p. 68, fig. 15. Dawson, Life's Dawn on Earth, 1875, p. 152, fig. 38. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 2, fig. 2a; Ibid., 1880, p. 299, pi. 2, figs. 2a, b. Zittel, Handb. Pal., 1, 1880, pp. 173, 728. Hinde, Quart. Jour. Geol. Soc., London, 40, 1884, p. 835; Geol. Mag., dec. 3, 5, 1888, p. 226, 227, fig. 1. Archaeoscyphia minganensis Hinde, Quart. Jour. Geol. Soc. London, 45, 1889, p. 143, pi. 5, figs. 12-14; Canadian Rec. Sci., 3, 1889, p. 373. Rauff, Palseonto- graphica, 40, 1894, p. 240, pi. 1, figs. 1-10. Ethmophyllum minganense Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 77, fig. 6-8. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, pp. xxit, 225, figs. Canadian (Romaine) : Mingan Islands, Canada. ARCHINACELLA Ulrich and Scofield. Genotype: A. powersi Ulrich and Scofield. Metoptoma Billings (part), Geol. Surv. Canada, Pal. Fossils, 1, 1865, p. 39. Tryblidium Whiteaves (part), Geol. Surv. Canada, Pal. Fossils, 3, 1884, p. 31. Whitfield, Bull. Amer. Mus. Nat. Hist., 1 and 2, 1886-9. Archinacella Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 821-828. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p, 605. Berkey, Amer. Geol., 21, 1898, p. 278. Archinacella? billings! (Walcott;. Metoptoma Billings! Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 212, pi. 17, figs. 12, 12a. Black River (Lowville) : Russia, Herkimer County, New York. Archinacella canadensis (Whiteaves). Tryblidium Canadense Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 31, pi. 5, figs. 1, la. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1234, text figs. Capulus Canadensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 69, pi. 11, fig. 1. Archinacella canadensis Ulrich and Scofield Geol. Minnesota, 3, pt. 2, 1897, p. 825 (gen. ref.). Niagaran (Guelph): Hespeler, Ontario. Archinacella cingulata Ulrich. Archinacella cingulata Ulrich Geol. Minnesota, 3, pt, 2, 1897, p. 829, pi. 61, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606, fig. 805 g, h. Triblidium cingulatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.). Trenton (Curdsville) : Mercer County, Kentucky. Holotype.C&t. No. 45686, U.S.N.M. Archinacella clochensis Foerste. Archinacella clochensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 308, pi. 2, figs. 5a-b. Black River (Lowville) : La Cloche Peninsula, Ontario. 62 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Archinacella deformata (Hall). Orbicula? deformata HaU, Pal. New York, 1, 1847, p. 23, pi. 4, figs. lOa, lOb. (Orbicula deformis in explanation of plate.) Crania? deformata Miller, N. A. Geol. Pal., 1889, p. 341. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 150. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 189. Archinacella? deformata Raymond, Amer. Jour. Sci., 4th eer., 20, 1905, p. 375; Ann. Carnegie Mus., 4, 1908, p. 171, pi. 46, figs. 1-6. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 605, fig. 806. Metoptoma deformis Billings, Geology Canada, 1863, p. 937. Discina deformis Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 1, fig. 10. Stenotheca dubia Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, 1898, p. 58. Metoptoma dubia Hall, Pal. New York, 1, 1847, p. 23, pi. 4, figs, lla, lib. Chazyan (Day Point-Valcour) : Crown Point, Valcour Island and Chazy, New York; Aylmer, Canada. Archinacella dele t a (Sardeson). Carinaropsis deleta Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 335, pi. 6, figs. 5, 6. Archinacella deleta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 831, pi. 61, figs. 16-20. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606, fig. 805c-e. Black River (Decorah): Minneapolis, St. Paul, Cannon Falls, etc., Minnesota. Plesiotype.C&t. No. 45687, U.S.N.M. Archinacella depressa Ulrich and Scofield. Archinacella depressa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 830, pi. 61, figs. 8 and 9. Black River (Platteville) : Minneapolis, Minnesota. Plastotype.Ca,t. No. 45688, U.S.N.M. Archinacella estella (Billings). Metoptoma estella Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 153, fig. 134a, b (advance sheets, 1862); Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866, p. 18 (loc. ref.). Tryblidium? estella, Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1894,- p. 31 (gen. ref.). Archinacella estella Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829 (gen. ref.). Richmond (English Head) : English Head, Anticosti. Archinacella indianensis (Miller). Tryblidium indianense Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 695, pi. 14, fig. 14 (adv. sheets, 1891, p. 85). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 977, pi. 39, fig. 11. Richmond: Fayette County, Indiana. Observation. Compare Archinacella richmondensis Ulrich. Archinacella instabilis (Billings). Metoptoma instabilis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 251, fig. 236a, b. Tryblidium? instabilis Whiteaves, Pal. Fossils, Geol. Surv. Canada, 3, pt. 1, 1884, p. 31 (gen. ref.). Archinacella instabilis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829 (gen. ref.). Chazyan (Quebec L): Table Head, Newfoundland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 63 Archlnacella instabilis Incurva Ulrich and Scofield. Archinacella instabilia var. incurva Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 835, pi. 61, figs. 21-23. Black River (Decorah): Goodhue County, Minnesota. Holotype.G&i. No. 45689, U.S.N.M. Archinacella orbiculata (Hall). Carinaropsis orbiculatus Hall, Pal. New York, 1, 1847, p. 306, pi. 83, figs. 8a-c. Helcion orbiculatus D'Orbigny, Prodr. Pal., 1, 1849, p. 9 (gen. ref.). Emmons, Amer. Geol., 1, pt. 2, 1855, p. 164. Arcliinacella orbiculata Ruedemann, Bull. New York State Mus., 162, 1912, p. 108, pi. 7, figs. 1-6. Trenton (Snake Hill): Snake Hill, Waterford, etc., New York. Archinacella patelliformis (Hall). Carinaropsis patelliformis Hall, Pal. New York, 1, 1847, p. 183, pi. 40, figs. 2a, b. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 314; N. A. Geol. Pal., 1889, p. 400, fig. 659. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 117, figs. Helcion patelliformis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 164, pi. 6, fig. 1. D'Orbigny, Prodr. Pal., 1, 1849, p. 9 (gen. ref.). Arcliinacella patelliformis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 832 (gen. ref.). Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 174, pi. 12, figs. 1, 2. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 606. Black River-Maysville: Middleville, etc., New York (Trenton); New Jersey; Ohio; Missouri, etc. Archinacella perovalis (Whitfield). Metoptoma perovalis Wliitfield, Ann. Rep. Geol. Surv. Wisconsin, 1878, p. 74; Geol. Wisconsin, 4, 1882, p. 211, pi. 5, figs. 13 and 14. Archinacella perovalis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 830, pi. 82, figs. 3 and 4. Metoptoma explanata Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 337, pi. 6, figs. 7, 8. Black River (Platteville) : Minneapolis, Minnesota; Beloit, Wisconsin. Archinacella phillipsi (Walcott). Metoptoma phillipsi Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 83, pi. 1, figs. 4, 4a. Archinacella phillipsi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829 (gen. ref.) Upper Pogonip: Pogonip Ridge, Eureka District, Nevada. Cotypes.C&t. No. 17359, U.S.N.M. Archinacella pileolum (Whitfield). Triblidium pileolum Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 46, pi. 7, figs. 15-17. Tryblidium pileolum Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1236, figs. Archinacella pileolum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 826 (gen. ref.). Canadian (Beekmantown): Beekmantown, New York. Archinacella powersi Ulrich and Scofield. Archinacella powersi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829, pi. 61, figs. 3-5, p. 820, fig. la. 64 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Archinacella powers! Continued. Triblidium powers! Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.) Black River (Platteville) : Beloit, Wisconsin. Plastotype.~Q*t. No. 45690, U.S.N.M. Archinacella? propria Raymond. Metoptoma montrealensis Raymond (not Billings), Bull. Amer. Pal., 14, 1902, p. 34. Archinacella? propria Raymond, Ann. Carnegie Mus., 3, 1906, p. 575; 4, 1908, p. 172, pi. 46, figs. 7, 8. Chazyan (Day Point, Crown Point): Crown Point, Valcour Island, and Chazy, New York. Archinacella pulaskiensis Foerste. Carinaropsis patelliformis Hull (part), Pal. New York, 1, 1847, p. 306, pi. 83, figs. 7a, b. Archinacella pulaskiensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 309, pi. 3, fig. 3a-d. Cincinnatian (Pulaski): Pulaski, Lorraine, etc., New York. Archinacella richmondensis Ulrich. Archinacella richmondensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 834, pi. 61, figs. 6, 7. Richmond (Whitewater): Richmond, Indiana. HolotypeC&t. No. 45691, U.S.N.M. Observation. Compare Archinacella indianensis (Miller). Archinacella rotunda Ulrich and Scofield. Archinacella rotunda Ulrich and Schofield, Geol. Minnesota, 3, pt. 2, 1897, p. 835, pi. 61, figs. 24, 25. Triblidium rotundum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.). Richmond (Maquoketa): Near Graf, Iowa. Holotype.C&t. No. 45692, U.S.N.M. Archinacella rugatina Ulrich. Archinacella rugatina Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 835, pi. 82, figs. 5,6. Richmond (Arnheim): Middletown, Ohio. Holotype.C&t. No. 43693, U.S.N.M. Archinacella semicarinata Ulrich and Scofield. Archinacella semicarinata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 833, pi. 61, figs. 12, 13. Trenton (Prosser) : Cannon Falls, Goodhue County, Minnesota. Holotype.Czt. No. 43694, U.S.N.M. Archinacella similis (Whitfield). Metoptoma similis Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 61; Geol. Wisconsin, 4, 1882, p. 196, pi. 3, figs. 12, 13. Chamberlin, Geol. Wisconsin, 1, 1883, p. 142, fig. Tryblidium simile Sardeson, Jour. Geol., 11, 1903, p. 479, fig. 3. Archinacella similis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829 (gen. ref.). Ozarkian (Mendota) : East of Baraboo, Wisconsin. Archinacella simplex (Billings). Metoptoma simplex Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 346, fig. 334. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 65 Archinacella simplex Continued. Tryblidium simplex Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, pt. 1, 1884, p. 31 (gen. ref.). Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 306, pi. 24, figs. 30, 31. Seely, Rep. Vermont State Geol., 7, 1910, pi. 62, figs. 30, 31. Archinacella simplex Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 826 (gen. ref.). Canadian (Beekmantown): Near Merrickville, Ontario. Archinacella simulatrlx Ulrich and Scofield. Archinacella simulatrix Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 833, pi. 61, figs. 10, 11. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606, fig. 805f, i. Black River (Decorah): St. Paul, Minnesota. Trenton (Hermitage): Frankfort, Kentucky. Holotype.Cat. No. 45695, U.S.N.M. Archinacella subrotunda Ulrich and Scofield. Archinacella subrotunda Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 834, pi. 61, figs. 26, 27. Black River (Decorah): Near Cannon Falls, Minnesota. Holotype.C&t. No. 45696, U.S.N.M Archinacella trentonensis (Billings). Metoptoma trentonensis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p 40, fig. 41a, b (adv. sheets, 1862). Tryblidium? trentonensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 31 (gen. ref.). Archinacella trentonensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829 (gen. ref.). Trenton: Chevrotiere and Island of Montreal, Canada. Archinacella valid a (Sardeson). Tryblidium validum Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 337, pi. 6, figs. 1, 2. Archinacella valida Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 832, pi. 61, figs. 14, 15. Trenton (Prosser): Near Cannon Falls and Kenyon, Minnesota. ARCTINURUS Castelnau. Genotype: Paradoxides boltoni Bigsby. Arctinurus Castelnau, Essai Syst. Sil. PAmer. Sept., 1843, p. 21. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 60, 63, 73. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 307. Oncholichas Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, pp. 31, 39. Koken, Die Leitfossilien, Leipzig, 1896, p. 30. Platynotus Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 60, 62. Pterolichas Gurich, Neues Jahrb. f. Minn., Geol. Pal., Bellage-Band, 14, 1901, p. 528, pi. 20, fig. 2. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 62, 73. Arctinurus boltoni (Bigsby). Paradoxides boltoni Bigsby, Jour. Acad. Nat. Sci. Philadelphia, 1st ser., 4, pt. 2, 1825, p. 365, pi. 23. Green, Mon. Tril. N. A., 1832, p. 60, pi. 1, fig. 5. Harlan, Trans. Geol. Soc. Pennsylvania, pt. 1, 1834, p. 103. Arctinurus boltoni Castelnau, Essai Syst. Sil. 1'Amer. Sept., 1843, p. 21, pi. 3, fig. 2. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 307, fig. 1618. 84243 Bull. 9215 5 66 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Arctinurus boltoni Continued. Platynotus boltoni Conrad, Rep. New York State Geol Surv., 1838, p. 118. Hall, Geol. New York, pt. 4, Tab. Org. Rem., 1843, p. 19, fig. 1. Lickas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 69; pi. 70, figs, la-g, j-1 (not figs. lh-i). Gebhgtrd, 8th Rep. New York State Cab. Nat. Hist., 1855, p. 29, pi. 69, fig. 1. Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 508, pi. 25, fig. 5. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 336, fig. Clarke, 10th Rep. State Geol. New York, 1891, p. 88; 44th Rep. New York State Mus., 1892, p. 112. Keyes, Missouri Geol. Surv., 4, 1894, p. 226. Grabau, Bull. New York State Mus., 45, 1901, p. 225, pi. 17. Lichas (Oncholichas) Boltoni Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, p. 31. Plerolichas boltoni Gurich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 14, 1901, p. 528, pi. 20, fig. 2. Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Hamilton, etc., Ontario. Plastotype.Gzt. No. 4888, U.S.N.M. Arctinurus chicagoensis Weller. Arctinurus chicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 248, pi. 23, figs. 7, 8; pi. 22, fig. 14. Niagaran (Racine): Hawthorne, Illinois. Arctinurus harrisi (Miller). Lichas harrisi Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi. 3, fig. 9. Lichas (Platynotus) harrisi Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753. Richmond (Liberty): Near Waynesville, Ohio. HolotypeC&t. No. 40690, U.S.N.M. Arctinurus nereus (Hall). Lichas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 70, figs. Ih-i (not figs. la-g, j-1). Lichas nereus Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 226. Van Ingen, School of Mines Quart., 23, 1901, p. 64, pi. figs. 14-26. Arctinurus nereus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 308. Niagaran: Lockport, New York (Rochester); St. Clair Springs, Independence County, Arkansas (St. Clair). Arctinurus obvius (Hall). Lichas obvius Hall, 20th Rep. New York State Cab. Nat. Hist,, 1870 (rev. ed.), p. 424, pi. 25, fig. 10. Lichas (Oncholichas) obvia Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, p. 31. Niagaran: Lyons, Iowa. Arctinurus occidentalis (Hall). Lichas boltoni Worthen and Meek, Geol. Surv. Illinois, 6, 1875, p. 508, pi. 25, fig. 5. Lichas boltoni var. occidentalis Hall, Trans. Albany Inst., 4, 1864, p. 223; 28th Rep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 34, figs. 8-11; (mus. ed.), 1879, p. 198, pi. 34, figs. 8-11; llth Rep. Dep. Geol. Nat. Hist, Indiana, 1882, p. 344, pi. 36, figs. 8-11, 12. Lesley, Geol. Surv. Pennsylva- nia, Rep. P 4, 1889, p. 335, fig. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 272. Arctinurus occidentalis Weller, Bull. Chicago Acad. Sci., Nat. Hist., Surv., 4, pt. 2, 1907, p. 247, pi. 20, figs. 10-12. Grabau and Shimer, N. A. Index Fos- sils, 2, 1910, p. 308, fig. 1621a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 67 Arctinurus occldentalis Continued. Niagaran: Waldron, Indiana, and Newsom, Tennessee (Waldron); Graf ton, Joliet, and Bonfield, Illinois; Cumberland Gap, Tennessee (Clinton). ARENICOLA SALTER. See Arenicolites Salter. ARENICOLITES Salter. Genotype: Arenicola didyma Salter. Arenicola Salter (not Leach), Quart. Jour. Geol. Soc. London, 12, 1856, p. 248. Arenicolites Salter, Quart. Jour. Geol. Soc. London, 13, 1857, p. 204. Nathorst. Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, p. 49. Whitfield, Geol. Wisconsin, 4, 1882, p. 177. Miller, N. A. Geol. Pal., 1889, p. 517. ARENICOLITES (SCOLITHUS) LINEARIS. See Scolithus linearis. Arenicolites sparsus Salter. Arenicolites sparsus Salter, Quart. Jour. Geol. Soc. London, 13, 1857, p. 203. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 138. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 41, fig.17. Silurian: Europe; Dundas, Ontario (Cataract). ARETHUSINA Barrande. Genotype: Arethusa koninckii Barrande. Aretlmsa Barrande, Notice Prel., Syst. Sil. Boheme, 1846, p. 48. Arethusina Barrande, Neues Jahrb. f. Min., etc., 1850, p. 780; Syst. Sil. du Cen- tre Boheme, 1, 1852, p. 493. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 498. Barrande, Neues Jahrb. f. Min., Geol. Pal., 1868, p. 257. (Ehlert, Bull. Soc. d'Etudes Sci. d'Angers, 1885, p. 4. Zittel, Handb. Pal., 2, 1885, p. 624. Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143; Amer. Geol., 16, 1895, pp. 167, 176. Koken, Die Leitfossilien, Leipzig, 1896, p. 24. Lindstrom, Kougl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 32. Arethusina ainericana Walcott. Arethusina Americana Walcott, Mono. U. S. Geol. Surv., 8, 1884, p. 62, pi. 9, fig. 27. Brogger, Geol. Foren. Stockholm Forhandl., 8, 1886, p. 206. Harpides? americanua Freeh, Leth. geog., Th. 1, Leth. Pal., 2, 1897, p. 44, foot- note. Cambrian and ?Ordovician (Pogonip): Eureka District, Nevada. Arethusina argentina Kayser. Arethusina argentina Kayser, Beitr. Geol. Pal. Argentinischen Republik, Palseon- tographica Supp., 3, 1876, p. 12, pi. 2, fig. 2. Ordovician: Quebrada de la Laja, Argentina. ARGASTER Hall. See Mesopalseaster Schuchert. ARGES ARKANSANA Van Ingen. See Dicranopeltis arkansana. ARGES PHLYCTAINODES Hall. See Corydocephalus phlyctainodes. ARGES PHLYCTAINODES DEPAUPERATUS Van Ingen. See Corydocephalus depaupe- ratus. ARGES TUBERCULATUS Weller. See Corydocephalus tuberculatus. ARIONELLUS Barrande. Genotype: A. ceticephalus Barrande. Arionellus Barrande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du Centre Boheme, 1, 1852, p. 404, pi. 10. Pictet, Traite de Pal., 2d ed., 1854, 2, p. 491 Billings, Canadian Nat. Geol., 5, 1860, p. 313; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 405. Kayser, Beit. Geol. Pal., Argentinischen Republik, Palacontographica Suppl., 3, 1876, p. 7. Walcott, Science, 3, 1884, p. 281. 68 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ARIONELLUS Continued. Zittel, Handb. Pal., 2, 1885, p. 601. Koken, Die Leitfossilien, Leipzig, 1896, p. 21, fig. 13, figs. 5, 6 Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 22, 25. Arionellus? cylindricus Billings. Arionellus cylindricus Billings, Canadian Nat. Geol., 5, 1860, p. 314, fig. 14; Geol. Canada, Geol. Surv. Canada, 1863, p. 237, fig. 264; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 406, fig. 385. Ptychaspis cylindricus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 198. Agraulos cylindricus Miller, N. A. Geol. Pal., 1889, p. 527, fig. 955. OzarHan? ( Le vis-erratic) : Point Levis, Quebec. ARIONELLUS OWENI Meek and Hayden. See Ptychoparia oweni. ARIONELLUS PUSTULATUS Walcott. See Glaphurus pustulatus. Arionellus? subclavatus Billings. Arionellus subclavatus Billings, Canadian Nat. Geol., 5, p. 315, fig. 15; Geol. Canada, Geol. Surv. Canada, 1863, p. 237, fig. 265a, b; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 406, fig. 386a. Ptychaspis subclavatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 198. Ozarkian? ( Le vis-erratic) : Point Levis, Quebec. ARISTERELLA Ulrich. Genotype: A. nitidula Ulrich. Aristerella, Ulrich Geol. Minnesota, 3, pt. 2, 1894, p. 524. Miller, N. A. Geol. Pal., 2d App., 1897, p. 779. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518. Aristerella nitidula Ulrich. Aristerella nitidula Ulrich Geol. Minnesota, 3, pt. 2, 1894, p. 524, pi. 35, figs. 30-39. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518, fig. 696c, d, e. Black River: Chatfield, Minnesota (Decorah); Lincoln County, Missouri (Auburn). Cotypes Cat. No. 46092, 46093, U.S.N.M. Aristophycus Miller and Dyer. Genotype: A. ramosum Miller and Dyer. Aristophycus Miller and Dyer, Contr. to Pal. No. 2, 1878, p. 3. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 130 Miller, N. A. Geol. Pal., 1889, p. 107. Observation. Genus and species abandoned by author in 1889, as probably inorganic and, if fucoidal, too irregular and too little known to be retained. Aristophycus ramosum Miller and Dyer. Aristophycus ramosum Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 4, pi. 4, fig. 2. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 130, pi. 6, fig. 2; 14, 1891, p. 46 Miller, N. A. Geol. Pal., 1, 1889, p. 107. Maysville: Cincinnati, Ohio. Aristophycus ramosum germanum Miller and Dyer. Aristophycus ramosum var. germanum Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 4, pi. 4, fig. 3 Miller, N. A. Geol. Pal., 1889, p. 130. James, Jour. Cincinnati Soc. Nat. Hist., 1891, 14, p. 46. Maysville: Cincinnati, Ohio. ARISTOZOE Barrande. Genotype: A. bisulcata Barrande. Aristozoe Barrande, Syst. Sil. Boheme, Sup. 1, 1872, p. 474. Canu, Ann. Soc. geol. du Nord, 12, 1885, p. 145. Jones Rep. 53d Meeting Brit. Assoc. Adv. Sci., 1884, p. 217; 55th Meeting, 1886, p. 358. Zittel, Handb. d. Pal., 2, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 69 ARISTOZOE Continued. Munich, 1885, p. 552 Novak, Sitz. d. k. bohm. Gesell. d. Wiss. Math.- Naturw. Cl., 1886, p. 239. Jones and Woodward, Mon. Brit. Pal. Phyllopoda, Pal. Soc., 1888, p. 3. Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1889, p. 42. Miller, N. A. Geol. Pal., 1889, p. 530 Koken, Die Leit- fossilien, Leipzig, 3896, p. 40. Arlstozoe canadensis Whitfield. Aristozoe canadensis Whitfield, Ann. New York Aoad. Sri., 1890, p. 505; 5, 1891, p. 572, pi. 12, figs. 17, 18; Geol. Surv. Ohio, Pal., 7, 1893, p. 462, pi. 8, figs. 17, 18. Grabau and Shimer, N. A. Index Fo&sils, 2, 1910, p. 379, fig. 1680e, f. Trenton: Ottawa Basin, Ontario. ARTHRARIA Billings. Genotype: A. antiquata Billings. Arthraria Billings, Canadian Nat., n. s., 6, 1872, p. 467; Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 66; Geol. Surv. Newfoundland, Rep. Progr. for 1881, 1882, App. p. 14. Miller, N. A. Geol. Pal., 3889, p. 307. Arthraria bielavata Miller. Arthraria bielavata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 354, fig. 26. Maysville: Cincinnati, Ohio, and vicinity. ARTHROCLEMA Billings. Genotype: A. pulchellum Billings. Arthroclema Billings, Pal. Foss., 1, 1865, p. 54 (adv. sheets, 1862). Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 151; Hth Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 60; Amer. Geol., 1, 1888, p. 232. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 192; Geol. Surv. Illinois, 8, 1890, p. 400; Geol. Minnesota, 3, 1893, p. 197; Zittel's Textb. Pal., 1896, p. 281. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 546. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 5. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 42 Cumings, Amer. Jour. Sci., 4th ser., 17, 1904, p. 75, fig. 83; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 739. Grabau and Shimer, N. A. Index Foasils, 1, 1907, p. 152 Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 150; Zittel-Eastman Textb. Pal., 1913, p. 343. Arthroelema angulare Ulrich. Arthroclema angulare Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 45; Geol. Surv. Illinois, 8, 1890, p. 641, pi. 29, figs. 6-6b Whiteaves, Pal. Foss., 3, 1895, p. 117. Richmond: Wilmington, Illinois (Fernvale); Stony Mountain, Manitoba (Stony Mountain); English Head, etc., Anticosti (English Head and Charleton). Arthroclema armatum Ulrich. Arthroclema armatum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 194, fig. 19a-d (not e-h); Geol. Minnesota, 3, 1893, p. 201, pi. 2, figs. 8-11, 25, 28-33, pi. 3, fig. 7. Simpson, Hth Ann. Rep. State Geol. New York for 1894, 1897, p. 547, fig. Ill Sardeson, Jour. Geol., 9, 1901, p. 161 Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 153, fig. 2051. Bassler, Bull. U. S. Nat. Mus. No. 77, 1911, pp. 151, 152, fig. 73. Trenton (Prosser): Cannon Falls and St. Paul, Minnesota. Ordovician (Glauconite limestone) : Reval, Esthonia, Russia. Cotypes Cat. No. 43633, U.S.N.M. ARTHROCLEMA ARMATUM Ulrich (part). See Arthroclema pulchellum. 70 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Arthroclema billiiigsi Ulrich. Arthroclema billings! Ulrich, Geol. Surv. Illinois, 8, 1890, p. 642; Geol. Minnesota, 3, 1893, p. 197, pi. 2, fig. 7. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 547, fig. 105. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 153, fig. 205k. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 343, fig. 50Ia. Trenton: Ottawa, Ontario. Holotype.Ca,t. No. 43415, U.S.N.M. Arthroelema cornutum Ulrich. Arthroclema cornutum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 193, fig. 18; Geol. Minnesota, 3, 1893, p. 200, pi. 2, figs. 16-21, 23, pi. 3, fig. 34 Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 547, figs. 106-108, 112. Black River (Decorah): Minneapolis, Minnesota. CotypesC&t. No. 43634, U.S.N.M. Arthroclema piilchellum Billings. Arthroclema pulchellum Billings, Pal. Foss., 1, 1865, p. 54, fig. 60 (adv. sheets, 1862); Geol. Canada, Geol. Surv. Canada, 1863, p. 157, fig. 119. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 642, pi. 29, fig. 6c; Geol. Minnesota, 3, 1893, pi. 2, figs. 12-15. Arthroclema armatum (part) Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 194, fig. 19e-h (not 19a-d). Trenton: Ottawa, Ontario. ARTHROCLEMA SPINIFORME Ulrich. See Helopora spiniformis. Arthroclema striatum Ulrich. Arthroclema striatum Ulrich, Geol. Minnesota, 3, 1893, p. 198, pi. 2, figs. 22, 24, pi. 3, figs. 28-33. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 547, figs. 109, 110. Black River (Decorah): Minneapolis and St. Paul, Minnesota. Cotypes.C&t. No. 43498, U.S.N.M. ARTHRONEMA Ulrich. See Arthrostylus Ulrich. ARTHROPHYCUS Hall. Genotype: Fucoides harlani Conrad . Arthrophycus Hall, Pal., New York, 2, 1852, p. 4. Dawson, Canadian Nat. and Geol., n. s., 1, 1864, p. 366. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, pp. 32, 86. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893, p. 82; Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 132; Bull. New York State Mus., 9, 1901, p. 132. Sarle, Proc. Rochester Acad. Sci., 4, 1906, p. 203. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 247. Harlania Goeppert, Zeits. d. d. Geol. Gesell., 3, 1851, p. 189. Roemer, Leth. geog., 1 Theil, Leth. Pal., Erste Lief, 1880, p. 135. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 21, No. 14, 1886, p. 32. Arthrophycus alleghaniensis (Harlan). Fucoides alleghaniensis Harlan, Jour. Acad. Nat. Sci., 6, 1831, p. 289, pi. 15. Taylor Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 5. Harlan, Medical and Physical Researches, 1835, p. 393, fig. 1 on plate. Unger, Gen. et Sp. Foss. Plants, 1850, p. 30. Arthrophycus alleghaniensis James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893, p. 86. Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172. Sarle, Proc. Roches- ter Acad. Sci., 4, 1906, p. 203. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 8, fig. 4. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 247. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 71 Arthrophycus alleghaniensis Continued. Fucoides harlani Conrad, 2d Ann. Rep. New York Geol. Surv., 1838, p. 113. Vanuxem, Nat. Hist. New York, Geol, 3, 1842, p. 71, fig. 10. Hall, Nat. Hist. New York, Geol., 4, 1843, p. 46, figs. 1, 2; tab. ill. 1, figs. 1, 2. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 299, figs. 1, 2. Hall, Pal. New York, 2, 1852. p. 5, pi. 1, fig. 1; pi. 2, figs. la-c. Arthrophycus harlani Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 821, fig. 623. Eminons, Manual Geol., 1860, p. 105, fig. 95. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 52, pi. 5, figs. 10,11. Chapman, Cana- dian Jour., n. s., 8, 1863, p. 209, fig. 211; Expos. Min. Geol. Canada, 1864, p. 181, fig. 211. Whiteaves, Trans. Royal Soc. Canada, 1, sec. 4, 1883, p. 110. Lesley, Geol. Surv. Pennsylvania Rep. P 4, 1889, p. 37-39, figs. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893, pp. 82-86; Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172. Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 3. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 132, pi. 16; Bull. New York State Mus., 45, 1901, p. 132, pi. 16. Crinosoma antiqua Castelnau, Syst. Sil., 1843, p. 50, pi. 25, fig. 1. Encrinus giganteus Eaton, Geol. Textbook, 2d ed., 1832, p. 37, pi. 1, fig. 8. Harlania Hallii Goeppert, Nov. Act. Acad. Caes. Leop., 22, 1852, Suppl. (Ueber- gangsgeb, p. 98, pi. 41, fig. 4); Zeits. d. d. geol. Gesell., 3, 1852, pp. 189, 205; Saporta Le Monde des Plantes Appar. Homme, Paris, 1879, p. 164, figs. 1, 2. Schimper, Pal. Veg., 1, 1869, p. 196, pi. 2, fig. 6. Roemer, Leth. Geog., 1, Pal., 1880, p. 135, fig. 4. Lesquereux, 13th Ann. Rep. Indiana Geol. Surv., 1883, p. 29, pi. 2, fig. 3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 272, fig. James, Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172. Dana, Man. Geol., New York, 4th ed., 1895, p. 545, fig. 744. Nathorst, Forh. Geol. Foren. Stockholm, 19, pt. 5, 1897, p. 364, pi. 5. Fucoides Brongniartii Harlan, Featherstonhaugh's Monthly Amer. Jour. Geol., 1, 1832, p. 307. Taylor, Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 14, pi. 3, fig. 6. Harlan, Medical, Physical Res., 1835, p. 398, pi. , fig. 2. Conrad 1st Ann. Rep. New York Geol. Surv., 1837, p. 168. Top of White Medina (Tuscarora, Clinch, etc.): Mifflin County, etc., Pennsyl- vania; New York; Ontario; Maryland; Virginia. ARTHROPHYCUS HARLANI Rogers. See Arthrophycus alleghaniensis. ARTHROPORA Ulrich. Genotype: Ptilodictya (Stictopora) shafferi Meek. Arthropora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 152, 167. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 393; Geol. Minnesota, 3, 1893, p. 176; Zittel'sTextb. Pal. (Engl. ed.), 1896, p. 279. Pocta, Syst. Sil. Centre Boheme, 8, 1894, pt. 2, p. 14. Simpson, 14th Ann. Rep. State. Geologist New York for the year 1894, 1897, p. 605. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 4^. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 156. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 739. Bassler, Bull. U. S. Nat. Mus., No. 77, 1911, p. 119; Zittel-Eastman Textb. Pal., 1913, p. 345. Arthropora bifurcata Ulrich. Arthropora b if urcata Ulrich, Geol. Minnesota, 3, 1893, p. 178, pi. 14, figs. 22-25. Black River (Decorah): St. Paul and Cannon Falls, Minnesota. Trenton: Minnesota, Kentucky, Tennessee, and Canada. Cat. No. 43504, U.S.N.M. Arthropora cincinnatiensis (James). Ptilodictya? cincinnatiensis James, Paleontologist, No. 5, 1881, p. 39. Arthropora cincinnatiensis Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 14, pi. 4, fig. 7. Maysville (Mount Hope): Cincinnati, Ohio, and vicinity. 72 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Arthropora cleavelandl (James). Ptilodictya cleavelandi James, Paleontologist, No. 5, 1881, p. 38. Ptilodictya grahami James, Paleontologist, No. 5, 1881, p. 39. Btilodictya dubia James, Paleontologist, No. 5, 1881, p. 40. Arthropora shafferi-cleavelandi Nickles and Bassler, Bull. U. S. Geol. Surv., 173 1900, p. 171. Arthropora cleavelandi Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 14, pi. 3, figs. 13-16; pi. 4, fig. 6. Comings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 766, pi. 26, fig. 10. Eden: Cincinnati, Ohio, and vicinity. Arthropora kentuckiensis (James). Ptilodictya kentuckyensis James, Paleontologist, No. 5, 1881, p. 38. Arthropora kentuckiensis Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 15, pi. 4, fig. 5. Trenton (Upper): Ohio River bank opposite Cincinnati, Ohio. Arthropora reversa ITlrich. Arthropora reversa Ulrich, Geol. Minnesota, 3, 1893, p. 178, pi. 14, fig. 26. Trenton (Prosser): St. Paul, Minnesota. ITolotype.C&t. No. 43502 U.S.N.M. Arthropora shafferi (Meek). Ptilodictya (Stictopora) Shafferi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 317; Pal. Ohio, 1, 1873, p. 69, pi. 5, figs. la-c. Ptilodictya shafferi Nicholson, Pal. Prov. Ontario, 1875, p. 33, fig. 4. Stictopora shafferi Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1890, p. 1069, figs. Arthropora shafferi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 167, pi. 7, figs. 10, 10a. Miller, N. A. Geol. Pal., 1889, p. 293, figs. 453-455. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 308, fig. 3e. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 157. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 171. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 767, pi. 26, fig. 9. Crateripora erecta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29, pi. 7, figs. 29, 29a; 5, 1882, p. 151. Stromatopora(?) lichenoides James, Paleontologist, No. 3, 1879, p. 18; Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 251; 15, 3892, pt. 3, p. 90. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 56. Maysville (Bellevue, Corryville): Cincinnati, Ohio, and many localities in Ohio, Indiana, Kentucky, and Tennessee. Plesiotypes.Czt. Nos. 43630, 43646 U.S.N.M. ARTHROPORA SHAFFERI-CLEAVELANDI Nickles and Bassler. See Arthropora cleave- landi. Arthropora simplex Ulrich. Arthropora simplex Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 65; Geol. Minnesota, 3, 1893, p. 177, pi. 14, figs. 12-21. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 157, fig. 208g. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 120, 121, fig. 16. Black River (Decorah): Minneapolis, St. Paul, etc., Minnesota; Decorah, Iowa, Ordovician (Wassalem) : Uxnorm, Esthonia, Russia. Coupes. Cat. No. 43503, U.S.N.M. ARTHRORHACHIS Hawle and Corda. Genotype: Battus tardus Barrande. Arthrorhachis Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847, p. 114, pi. 6, fig. 60. Raymond, Ottawa Naturalist, 26, 1913, p. 3. BIBLIOGRAPHIC LJST OF GENERA AND SPECIES. 73 Arthrorhachis galba (Billings). Agnostus Galba Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 297, fig. 288. Vogdes, Amer. Geol., 9, 1892, p. 395, pi. 9, fig. 6. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, p. Ill, figs. 10, 2-5. Chazyan: Table Head, Pistolet Bay, and four miles northeast of Portland Creek, Newfoundland (Quebec M, N, P); Lexington, Virginia (Liberty Hall). ARTHROSTYLUS Ulrich. Genotype: Helopora tenuis James. Arthronema (preoccupied) Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 151, 160; Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 14. Arthrostylua Ulrich, American Geologist, 1, 1888, p. 230. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 188; Geol. Surv. Illinois, 8, 1890, p. 400; Geol. Minnesota, 3, 1893, p. 187; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 280. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 527. Nicklea and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 42. Graban and Shimer, N. A. Index Fossils, 1, 1907, p. 152. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 740. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 147; Zittel-Eastman Textb. Pal., 1913, p. 342. Arthrostylus conjunctus Ulrich. Arthrostylus conjunctus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 189, fig. 14; Geol. Minnesota, 3, 1893, p. 188, pi. 3, figs. 13, 14. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 526, figs. 78, 79, 79a. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 147, 148, fig. 70; Zittel-Eastman Textb. Pal., 1913, p. 343, fig. 501d, e. Black River (Decorah): Near Fountain, Minnesota. Ordovician (Wassalem): Uxnorm, Esthonia, Russia. Holotype.C&t. No. 43636, U.S.N.M. Arthrostylus curtus (Ulrich). Arthronema curtum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 161, pi. 6, fig. 9. Arthrostylus curtus Miller, N. A. Geol. Pal., ]889, p. 293. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 171. Maysville (Mount Hope): Covington, Kentucky. Holotype.Czt. No. 43639, U.S.N.M. Observation. Probably the basal segment of some species of Arthropora. Arthrostylus obliquus Ulrich. Arthrostylus obliquus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 190, figs. 14c, d; Geol. Minnesota, 3, 1893, p. 188, pi. 3, figs. 15, 16. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 152, fig. 205i. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 148, fig. 71. Black River (Decorah): Minneapolis, Minnesota. Ordovician (Echinospherites limestone): Wolchow River, St. Petersburg, Russia. Holotype.V&t. No. 43639, U.S.N.M. Arthrostylus teuuis (James). Helopora tenuis James, Paleontologist, No. 1, 1878, p. 3. Arthronema tenuis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 160, pi. 6, figs. 8-8c. Arthrostylus tenuis Ulrich, Geol. Minnesota, 3, 1893, pi. 3, fig. 16e; Jour. Cin- cinnati Soc. Nat. Hist., 12, 1890, pp. 189, 190, figs. 14e, f. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 15. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 768, pi. 26, figs. 8-8c. 74 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Arthrostylus tenuis Continued. Trenton (Upper) and Eden: Cincinnati, Ohio, and vicinity; Indiana and Ken- tucky; New York (Indian Ladder). Plesiotypes.V&t. No. 43637, U.S.N.M. ASAPHELLUS Callaway. Genotype: Asaphus homfrayi Salter. Asaphellus Callaway, Quart. Jour. Geol. Soc. London, 33, 1877, p. 663. Zittel, Handb. Pal., 2, 1885, p. 609. Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 37; Zittel-Eastman Textb. Pal., 1913, p. 719. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 290. Asaphellus gyracanthus Raymond. Asaphus canalis? Cleland, Bull. Amer. Pal., 3, 1900, p. 128, pi. 16, figs. 7, 8; 4, 1903, p. 38. Isotelus canalis Weller, Pal. New Jersey, 3, 1902, p. 132, pi. 5, figs. 5, 6. Asaphellus gyracanthus Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 39, pi. 14, figs. 5-7. Canadian (Beekmantown): Fort Hunter, New York (Tribes Hill), and Columbia, New Jersey. Asaphellus homfrayi (Salter). Asaphus Homfrayi Salter, App. Ramsay Geol. N. Wales; Mem. Geol. Surv., 3, 1866, p. 311, pi. 8, figs. 11-14; Mem. Geol. Surv. Great Britain, 3, 1881, 2d ed., p. 506, pi. 8, figs. 11-14. Asaphus (Isotelus) Homfrayi Salter, Mon. British Tril., Pal. Soc., 1866, p. 165, pi. 24, figs. 6-12; Cat. Camb. and Sil. Foss., 1873, p. 17. Asaphus (Asaphellus) Homfrayi Callaway, Quart. Jour. Geol. Soc. London, 33, 1877, p. 663, pi. 24, fig. 1. Asaphellus Homfrayi var. Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 1902, p. 413, pi. 18, figs. lOa-e; Rep. Cambrian Rocks Cape Breton, Geol. Surv. Canada, 1903, p. 232, pi. 18, figs. lOa-e. Asaphellus Homfrayi, var. macropyga Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 290, fig. 1598. Lower Ordovician: Europe; McLeod Brook, near Boisdale, Cape Breton, Nova Scotia (Bretonian Div. C 3c2). ASAPHELLUS PLANUS Matthews. See Hemigyraspis plana. ASAPHOCRINTJS Springer. Genotype: A. bassleri Springer. Asaphocrinus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). Asaphocrinus bassleri Springer. Asaphocrinus bassleri Springer, Mon. Crin. Flex., Smiths. Inst. (in press). Niagaran (Brownsport): Decatur County, Tennessee. Asaphocrinus incisus (Ringueberg). Lecanocrinus incisus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, p. 10, pi. 1, fig. 6. Asaphocrinus incisus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). Clinton (Rochester): Lockport, New York. Asaphocrinus ornatus (Hall). Cyathocrinus? Hall, Nat. Hist. New York, Geol. 4th Dist., 2, 1843, p. 201, pi. 44, figs. 2a-m. Lecanocrinus ornatus Hall, Pal. New York, 2, 1852, p. 201, pi. 44, figs. 2a-m. Asaphocrinus ornatus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). Lecanocrinus nitidus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, p. 9, pi. 1, fig. 5. Lecanocrinus excavatus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, p. 11, pi. 1, fig. 7. Clinton (Rochester): Lockport, New York. BIBLIOGRAPHIC LffST OF GENERA AND SPECIES. 75 ASAPHOIDICHNUS Miller. Genotype: A. trifidus Miller. Asaphoidiclmus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, pp. 217, 218; N. A. Geol. Pal., 1889, p. 530. Asaphoidichnus dyeri Miller. Asaphoidichnus dyeri Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 219, pi. 13, fig. 1. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, p. 48. Eden (Economy): Cincinnati, Ohio. Asaphoidichnus trifldus Miller. Asaphoidichnus trifidus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 218; N. A. Geol. Pal., 1889, p. 530, fig. 966. Eden (Economy): Cincinnati, Ohio. ASAPHUS Brongniart. Genotype: Entomolithus paradoxus expansus Linnseus. Asaphus Brongniart, Hist. Nat. Crust. FOBS., 1822, p. 17. DeKay, Annals Lyceum Nat. Hist., New York, 1, 1824, p. 175 footnote. Dalman, Kongl. Vet.-Akad. Handl. for 1826, 1827, pp. 149, 235, 268. Dalman-Engelhart, Die Palaeaden, Nurnberg, 1828, pp. 32, 41. Eichwald, Zool. Specialis, pt. 2, Vilnae, 1830, p. 114. Fischer deWaldheim, OryctographiedeMoscou, 1830-1837, p. 121. Eaton, Geol. Textb., 2d ed., 1832, p. 31. Green, Mon. Tril. N. A., 1832, pp. 16, 43. Murchison, Sil. Syst., 1839, p. 654. Edwards, Hist, Nat. d. Crus- taces, 3, 1840, p. 305. Burmeister, Org. der Tril., Berlin, 1843, p. 122. Portloek, Rep. Geol. Londonderry, 1843, pp. 274, 292. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 541, 560. Emmrich, ibid., 1845, p. 41. Loven, Ofvers, Kongl. Vet.-Akad. Forhandl., 2, 1845, p. 50. Burmeister, Org. Tril., London, 1846, pp. 105, 108. Hawle and Corda, Abh. d. k. bohmis- chen Gesell. d. Wiss., 5 (extract), 1847, p. 68, pi. 4, fig. 38. Salter, Mem. Geol. Surv. United Kingdom, dec. 2, 1849, pi. 5. McCoy, Ann. Mag. Nat. Hist., ser. 2, 4, 1849, p. 399. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 778; Syst. Sil. du. Centre Boheme, 1, 1852, p. 643. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 511. McCoy, British Pal. Rocks and Foss., 1854, p. 169. Nieszkowski, Archiv. fur die Naturk. Liv.-Ehstund Kurl., 1st ser., 1, 1857, p. 545. Chapman, Canadian Jour., n. s., 8, 1863, p. 28; Expos. Min. and Geol. Canada, 1864, p. 136. Salter, Mem. Geol. Surv. United Kingdom, dec. 11, 1864, pi. 3; Mon. Brit. Tril., Pal. Soc. 1866, p. 145. Woodward, Canadian Nat., n. s., 6, 1871, p. 228. Miller, Cincinnati Quart. Jour. Sci., 1874, pp. 135, 136. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 51. Novak, Sitz. d. k. bohm. Gesell. d. Wiss. Math. Naturw. Cl. for 1884, 1885, p. 217. Zittel, Handb. Pal., 2, Munich, 1885, p. 608. Brogger, Bihang till K. Sven. Vet.-Akad. Handl., 11, No. 3, 1886, pp. 25, 26, 70; Afh. Sveriges Geol. Unders., ser. C, 1886, p. 70. Woodward, Quart. Jour. Geol. Soc. London, 44, 1888, p. 77. Clarke, Jour. Morph., 2, 1888, pp. 254, 265. MiUer, N. A. Geol. Pal., 1889, p. 530; 1st App. 1892, p. 704. Walcott, Geol. Mag., dec. 4, 1, 1894, p. 247. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 701. Koken, Die Leitfos- silien, Leipzig, 1896, p. 26, fig. 16, 1, 2. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3, fig. 18. Schmidt, Mem. 1'Acad. Imp. Sci. St. Peters- burg, 8th ser., 6, 1898, pp. 11, 12; 12, 1901, p. 4, Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 147. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 26, 37. Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 1051. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 290. Raymond, Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 114. 76 BULLETIN 2, UNITED STATES NATIONAL MUSEUM. ASAPHUS Continued. Oyptonymus Eichwald, Obs. geog.-zool., etc., de Tril. (not 1840), 1825, p. 44; Zool. Specialis, pt. 2, Vilnae, 1830, p. 114. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 541, 554. Salter, Mon. Brit. Tril., Pal. Soc., 1866, p. 147, 160. Vogdes, Mon. Genera Zethus, Cybeleand Cryptonymus, 1878, p. 15. Zittel, Handb. Pal., 2, Munich, 1885, p. 609. Hemicrypturus Green, Mon. Tril. N. A. 1832, p. 20. Burmeister, Org. der Tril., Berlin, 1843, p. 124; Org. Tril., 1846, p. 107. Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5, 1847, p. 69, pi. 4, fig. 37. Observation. Few of the above references apply to Asaphus a. s., but all are included here for future research upon this and allied genera. ASAPHUS ALACER Billings. See Brachyaspis alacer. ASAPHUS ALPHA Raymond. See Basilicus marginalia. Asaphus? astragolotes Green. Asaphus astragolotes Green Supp. 1, Mon. Trilobites N. A., 1835, p. 11. Ordovician: Grenville Canal, Canada. Pla8totype.Ga,t. No. 25698, U.S.N.M. ASAPHUS BARRANDI Hall. See Ptychopyge barrandi. ASAPHUS BETA Raymond. See Isotelus beta. ASAPHUS BOLIVIENSIS D'Orbigny. See Megalaspis? boliviensis. ASAPHUS CANADENSIS Chapman. See Ogygites canadensis. ASAPHUS CANALIS Whitfield. See Isoteloides whitfieldi. ASAPHUS CANALIS Hall. See Isotelus canalis. ASAPHUS CANALIS Cleland. See Asaphellus gyracanthus. Asaphus(?) caribouensis Walcott. Asaphus Caribouensis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 98, pi. 12, figs. 7, 7a, b. Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada. Cotype.C&t. No. 24652, U.S.N.M. ASAPHUS CAUDATUS Green. See Dalmanites limulurus. ASAPHUS CONVEXUS Cleland. See Symphysunis convexus. ASAPHUS CORDIERI Castelnau. See Dalmanites, limulurus. ASAPHUS CORYCCEUS Conrad. See Proetus corycoeus. Asaphus? crypturus Green. Asaphus crypturus Green, Suppl. Mon. Trilobites North Amer., 1835, p. 18. Silurian: Moose River, Nova Scotia. Plastotype.Czt. No. 4835, U.S.N.M. Asaphus(?) curiosus Billings. Asaphus? Curiosus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 318, fig. 305. Asaphus? curiosa Walcott, Mon. IT. S. Geol. Surv., 8, 1884, p. 98, pi. 12, fig. 15. Canadian: Stanbridge, Quebec (Beekmantowu) ; Eureka District, Nevada (Pogonip). Plesiotype.V&t. No. 24651, U.S.N.M. BIBLIOGRAPHIC L,IST OF GENERA AND SPECIES. 77 ASAPHUS EDWARDSII Castelnau. See Dalmaiiites limulurus. ASAPHUS EMORYI Hall. See Onchoinetopus emoryi. ASAPHUS EXTANS Winchell. See Proelus stonemani. ASAPHUS? EXTANS Hall. See Bathyurus extans. ASAPHUS GAMMA Raymond. See Basilicus marginally. ASAPHUS GIGAS Dalman. See Isotelus gigas. ASAPHUS(?) GONIURUS Billings. See Megalaspis goniurus. ASAPHUS HALLI Chapman. See Ogygites canadensis. ASAPHUS HINCKSII Chapman, gee Ogygites canadensis. ASAPHUS HOMALONOTOIDES Walcott. See Isoteloides homalouotoides. ASAPHUS HUITONI Billings. See Basilicus huttoni. ASAPHUS ILLJSNOIDES Billings. See Symphysurus illaenoidcu. ASAPHUS (ISOTELUS) IOWENSIS Owen. See Isotelus iowensis. Asaphus(?) latimarginata Hall. Asaphus? latimarginata Hall, Pal. New York, 1, 1847, p. 253, pi. 66, figs. 4a, b. Asaphus latimarginatus Chapman, Canadian Jour., n. s., 2, 1857, p. 47. Utica: Near Watertown, Jefferson County, New York. Observation. Possibly the same as Ogygites canadensis (Chapman). ASAPHUS LIMULURUS Green. See Dalmanites limulurus. ASAPHUS MARGINALIS Collie. See Hemigyraspis collieana. ASAPHUS MARGINALIS Hall. See Basilicus marginalis. ASAPHUS MAXIMUS Clarke. See Isotelus inaximus. Asaphus megalopthalmus Troost. Asaphus megalopthalmus Troost, Mem. Soc. Geol. France, 3, 1838, p. 94, pi. 11, figs. 1-5; 5th Geol. Rep. Tennessee, 1840, p. 57; 6th Geol. Rep. Tennessee, 1841, p. 175 (nom. mid.). Silurian or Devonian: Perry County, Tennessee. Observation. Not recognized. Probably refers to some Devoniaoi species of Phacops. ASAPHUS MEGISTOS of authors. See Isotelus inaximus. Asaphus micropleurus Green. Not recognized. Asaphus micropleurus Green, Suppl. Moil. Tril. N. A., 1835, p. 21, cast No. 41. Trenton: Glens Falls, New York. ASAPHUS MORRISII Billings. See Basilicus huttoni. ASAPHUS MURCHISONI Castelnau. See Isotelus gigas. ASAPHUS NODOSTRIATUS Hall. See Bathyurus extans. ASAPHUS? XOTANS Billings. See Brachyaspis notan.s. ASAPHUS OBTUSUS Hall. See Onchometopus obtusus. 78 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Asaphus(?) pelops Billings. Asaphus pelops Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 317, fig. 304a, b. Canadian (Beekmantown): Bedford, Missisquoi County, Quebec. ASAPHUS PLANUS Dalraan. See Isotelus gigas. ASAPHUS PLATYCEPHALUS Stokes. See Isotelus gigas. ASAPHUS PLATYCEPHALUS Billings. See Isotelus latus and Brachyaspis altilis. Asaphus(?) quadraticaudatus Billings. Asaphus quadraticaudatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 272, fig. 258. Chazyan (Quebec-N. P.): Table Head and four miles northeast Portland Creek, Newfoundland. ASAPHUS ROMINGERI Walcott. See Basilicus romingeri. ASAPHUS SUSM Whitfield. See Onchometopus susse. ASAPHUS STOKESII Murchison. See Proetus stokesii. Asaphus tetragonocephalus Green. Asaphus tetragonocephalus Green, Amer. Jour. Sci., 25, 1834, p. 335; Suppl. Mon. Tril. N. A., 1835, p. 12, cast 38. Ordovician(?): ?Newport, New York. Plastotype.C&t. No. 4948, U.S.N.M. Observation. The type is a specimen made up of two fragments of unidentified Cambrian trilobites, probably Olenus. ASAPHUS? TRENTONENSIS Conrad. See Amphilichas trentonensis. ASAPHUS TRIANGULATUS Whitfield. See Isoteloides homalonotoides. ASAPHUS ULRICHI Miller. See Basilicus romingeri. ASAPHUS VETUSTUS Hall. See Basilicus vetustus. ASAPHUS (ISOTELUS) VIGILANS Meek and Worthen. See Nileus vigilans. ASAPHUS WETHERILLI Green. See Dalmanites limulurus. ASAPHUS WISCONSINENSIS Walcott. See Basilicus romingeri. ASCOCERAS Barrande. Genotype: A. bohemicum Barrande. Ascoceras Barrande in Haidinger's Mittheil. d. Fr. d. Naturw., 3, 1847, p. 264-269; Neues Jahrb. f. Min., etc., 1854, p. 11, pi. 1, fig. 13a, b. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 639. Barrande, Neues Jahrb. f. Min., etc., 1855, pp. 257, 260, pi. 3, figs. 1-10, p. 320; Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 160, pi. 5, figs. 16-28. Woodward, Mem. Mollusca, pt. 3, 1856, p. 450. Billings, Canadian Nat. Geol., 2, 1857, p. 137, fig. 9. Barrande, Neues Jahrb. f. Min., etc., 1860, p. 653; Syst Sil. du Centre Boheme, 2, pt. 1, 1867, p. 334. Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 26, fig. 3. Blake, Mon. British Foss. Cephalopoda, 1882, p. 60. Zittel, Handb. Pal., 2, Munich, 1884, p. 372. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 279; 23, 1888, p. 483. Lindstrom, Geol. Mag., dec. 3, 5, 1888, p. 532. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 246; 2, 1891, p. 387. Miller, N. A. Geol. Pal. 1889, p. 432. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 23, No. 12, 1890, p. 14. Koken, Die Leitfossilien, Leipzig, 1896, p. 49, text fig. 32, fig. 3. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 516; 2d ed., 1913, p. 596. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 79 Ascoceras auticostiense Billings. Ascoceras newberryi Billings (part), Pal. Foss., 1, (iool. Snrv. Canada, 1865, p. 163, fig. 148b (adv. sheets, 1862). Ascoceras Anticostiense Billings, Oat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1865, p. 60 (loc. ref.). Gamachian (Ellis Bay): Gamache Bay, Anticosti. Ascoceras boreale Parks. Ascoceras boreale Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 34. Mohawkian or Richmond : Shamattawa River, Manitoba. ASCOCERAS CANADENSE Billings. See Billingsites canadensis. Ascoceras costulatum Whiteaves. Ascoceras costulatum Whiteaves, Canadian Rec. Sci., 6, 1895, p. 394; Pal. Foes., Geol. Surv. Canada, 3, pt. 3, 1897, p. 215, pi. 22, fig. 1. Black River or Richmond: Lake Winnipeg, Canada. Ascoceras gibberosum Sardeson. Ascoceras gibberosum Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 102, pi. 6, figs. 8-10. Ozarkian (Oneota) : Dresbach, Minnesota. Ascoceras Indianense Newell. Ascoceras Indianensis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 484, figs. Niagaran: Delphi, Indiana. Ascoceras newberryi Billings. Aecoceras Newberryi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 163, fig. 148a (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 23, 59 (loc. ref.). Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 484. Richmond (English Head and Charleton) and Gamachian: English Head, etc., Anticosti. Niagaran: Delphi, Indiana (Newell). ASCOCERAS NEWBERRYI Billings (part). See Ascoceras auticostiense. Ascoceras sonthwelli Worthen. Ascoceras southwelli Worthen, Geol. Surv. Illinois, 8, 1890, p. 151, pi. 27, figs. 2, 2a. Niagaran: Port Byron, Illinois. Ascoceras townsendi AVhiteaves. Aecoceras Townsendii Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 41, pi. 6, figs. 4, 4a; pt. 2, 1895, p. 103. Niagaran (Guelph) : Durham, Ontario. ASCODICTYON Nicholson and Etheridge, Jun. Genotype: A. stellatum Nicholson and Etheridge, Jun. Ascodictyon Nicholson and Etheridge, Jun., Ann. Mag. Nat. Hist. 4th ser., 19, 1877, p. 463. Vine, Quart. Jour. Geol. Soc. London, 37, 1881, p. 618; 38, 1882, p. 52; Rep. 53d Meeting Brit. Assoc. Adv. Sci., 1884, p. 185; Proc. Yorkshire Geol. Polyt. Soc., 9, 1887, p. 183; 12, 1892, p. 86. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Geol. Sun-. Illinois, 8, 1890, p. 367.- Simpson, 14th Rep. State Geol. New York for 1894, 1897, p. 603. Nickles 80 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ASCODICTYON Continued. and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 19, 172. Ulrich and Bassler, Smiths. Misc. Coll., 45, 1904, p. 285. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 14. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 117. ASCODICTYON RADIANS Vine. See Vinella radiciformis. ASCODICTYON RADICIFORME Vine. See Vinella radiciformis. Ascodictyon siluriense Vine. Ascodictyon stellatum Vine (not Nicholson and Etheridge), Quart. Jour. Geol. Soc. London, 37, 1881, p. 618. Ascodictyon stellatum var. siluriense Vine, Quart. Jour. Geol. Soc. London, 38, 1882, p. 52, figs. 1, 2; Ann. Mag. Nat. Hist,, 5th ser., 14, 1884, p. 81, fig. 7; Proc. Yorkshire Geol. and Polytech. Soc., 9, 1887, p. 184, pi. 12, fig. 6. Ascodictyon siluriense Vine, Proc. Yorkshire Geol. Polytech. Soc., 12, 1892, p. 88, pi. 2, fig. 1. Ulrich and Bassler, Smiths. Misc. Coll., 45, 1904, p. 286, pi. 68, figs. 11, 12. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 14, pi. 4, figs. 6-8. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 260, pi. 46, fig. 2. Silurian: Shropshire, England (Wenlock); Lockport, etc., New York; Ontario, Canada (Rochester); Waldron, Indiana; Newsom, Tennessee (Waldron); Island of Anticosti (Jupiter Biver). Helderbergian (Keyser): Cash Valley, Maryland. Plesiotypes.C&t. Nos. 43135, 43138, U.S.N.M. ASCODICTYON STELLATUM Vine. See Ascodictyon siluriense. ASCODICTYON STELLATUM SILURIENSE Vine. See Ascodictyon siluriense. ASPIDOPORA Ulrich. Genotype: Aspidopora areolata Ulrich. Aspidopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 373; Geol. Minnesota, 3, 1893, p. 254. Simpson, 14th Ann. Bep. State Geol. New York for 1894, 1897, p. 584. Nickels and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 29. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130. Cumings, 32d Ann. Bep. Dep. Geol. Nat. Bes. Indiana, 1908, p. 740. Aspidopora areolata Ulrich. Aspidopora areolata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 164, pi. 7, figs. 2-2c. Monticulipora areolata J. F. James, ibid., 16, 1894, p. 183. Eden (Fulton) : Cincinnati, Ohio, and vicinity. Cotypes.C&t. No. 43632, U.S.N.M. Aspidopora calycula (James). Lichenalia? calycula James, Cat. Foss. Cincinnati Group, 1871 (not defined). Chsetetes? calyculus James, Introd. Cat. Foss. Cincinnati Group, 1875, p. 1. Monticulipora (Diplotrypa) calycula Nicholson, Genus Monticulipora, 1881, p. 165, pi. 4, figs. 4-4b. Prasopora calycula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 165. Monticulipora calycula James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 167. J. F. James, ibid., 16, 1904, p. 184. Aspidopora calycula Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 173. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 16, pi. 1, figs. 8-10. Trenton (Upper): Covington, Kentucky, and vicinity. BIBLIOGRAPHIC IJIST OF GENERA AND SPECIES. 81 Aspidopora eccentrlca (James). Monticulipora (Heterotrypa?) eccentrica James, Paleontologist, No. 6, 1882, p. 48; No. 7, pi. 1, figs. 6, 6a. Monticulipora eccentrica James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 167, pi. 2, figs. 2a-c. J. F. James, ibid., 16, 1894, p. 185. Aspidopora eccentrica Ulrich, Geol. Minnesota, 3, 1893, p. 255. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 17, pi. 2, figs. 8-12; pi. 5, figs. 7, 8. Eden (Soutligate) : Cincinnati, Ohio, and vicinity. Aspidopora elegantula (Ulrich). Aspidopora elegantula Ulrich, Geol. Minnesota, 3, 1893, p. 256, pi. 17, figs. 13-21. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 162-164 (p. 584). Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130, fig. 186e. Trenton (Prosser) : Kenyon and St. Paul, Minnesota. Cotypes.Ca,t. No. 45499, U.S.N.M. Aspidopora newberryi (Nicholson). Chsetetes Newberryi Nicholson, Pal. Ohio, 2, 1875, p. 212, pi. 22, figs. 4, 4a. Monticulipora (Prasopora) Newberryi Nicholson, Genus Monticulipora, 1881, p. 212, pi. 4, figs. l-le. Prasopora? newberryi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 165. Aspidopora newberryi Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 91. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130. Monticulipora newberryi James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 164. J. F. James, ibid., 16, 1894, p. 179. Eden (Economy): Cincinnati, Ohio, and vicinity. Aspidopora parasitica (Ulrich). Aspidopora parasitica Ulrich (part), 14th Ann. Rep. Geol. Nat. Hist. Surv. Minne- sota, 1886, p. 90; Geol. Minnesota, 3, 1893, p. 255, pi. 17, figs. 26-32. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 180. Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota. Cotypes Cat. No. 44051, U.S.N.M. Aspidopora parmula (Foerste). Prasopora parmula Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 170; 3, 1888, pi. 15, fig. 14. Aspidopora parmula Foerste, Geol. Surv. Ohio, 7, 1895, p. 600, pi. 28, fig. 14. Upper Medinan (Brassfield): Dayton, and Clinton County, Ohio. Aspidopora parmula fenestelliformis Foerste. Aspidopora parmula var. fenestelliformis Foerste, Geol. Surv. Ohio, 7, 1895, p. 600. Upper Medinan (Brassfield): Dayton, Ohio. ASTERIAS ANTHONH Dana. See Petraster jamesi. ASTERIAS ANTIQUA Troost. See Mesopalseaster antiqua. ASTERIAS ANTIQUATA Locke. See Promopalseaster speciosa. ASTERIAS (FOSSIL) Graham, Anthony, and James. See Petraster americana. ASTERIAS MATUTINA Hall. See Hudsonaster matutina. ASTR^OPHYLLUM Nicholson and Hinde. See Strombodes Schweigger. ASTRJSOPORA VETUSTA D'Orbigny. See Protarea vetusta. 84243 Bull. 9215 6 82 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ASTRJEOSPONGIA Roemer. Genotype: Blumenbachium meniscus Roemer. Blumenbachium Roemer (not Konig, 1820), Neues Jahrb. f. Min., etc., 1848, pp. 680, 682. Astraeospongia Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 13; Cin- cinnati Quart. Jour. Sci., 1, 1874, p. 248. Zittel, Handb. Pal., 1, Munich, 1879, p. 185. Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Lief., 1880, p. 313. Hinde, Mon. Brit. Foss. Sponges, Pal. Soc., 1888, p. 133. Miller, N. A. Geol. Pal., 1889, p. 154. Koken, Die Leitfossilien, Leipzig, 1896, p. 342. Zittel-Eastman Textb. Pal., 1, 1900, p. 56 Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 17. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 62. Astraeospongia meniscus (Roemer). Blumenbachium meniscus Roemer, Neues Jahrb. Min., 1848, p. 683, pi. 9, fig. 1. Oswald, Zeits. d. d. geol. Gesell., 2, 1850, p. 83. Astraeospongia meniscus Roemer, Sil. Fauna West. Tennessee, 1860, p. 14, pi. 1, figs. 6, 6a-d. Safford, Geol. Tennessee, 1869, pp. 311, 320, pi. 5 (II), figs. la-e. Roemer, Cincinnati Quart. Jour. Sci., 1, 1874, p. 248; Leth. geog., Leth. Pal., 1, Atlas, 1876, pi. 9, fig. 2. J. W. Hall and Gaertner, 30th Rep. New York State Mus. Nat. Hist., 1878, pp. 111-116, pi. 3, pp. 1-6. Roemer, Leth. geog, 1, Theil., Leth. Pal., Erste Lief., 1880, p. 314, pi. 9, figs. 2a-2e. Hinde, Cat. Foss. Sponges Brit. Mus., 1883, p. 148. Miller, N. A. Geol. Pal., 1889, p. 154, text fig. 90. Foerste, Jour. Geol., 11, 1903, p. 713, (loc. occ.). Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 18, fig. 27. Niagaran: Brownsport, Perry ville, etc., Tennessee (Brownsport); Louisville, Kentucky (Louisville). ASTRASPIS Walcott. Genotype: A. desiderata Walcott. Astraspis Walcott, Bull. Geol. Soc. Amer., 3, 1892. p. 166. Astraspis desiderata Walcott. Astraspis desiderata Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 166, pi 3, figs. 6-14, pi. 4, figs. 1-4. Black River (Harding): Canyon City, Colorado. Astrea fungiformis Owen. Not recognized. Astrea fungiformis Owen, Geol. Expl. Iowa, Wisconsin, and Illinois, 2d ed., 1844, p. 78, pi. 14, fig. 11. Niagaran: Iowa and Wisconsin. ASTREA? GIGAS Owen. . See Strombodes gigas. ASTREA MAMILLARIS Owen. See Strombodes mamillaris. ASTREOPORA ORGANUM D'Orbigny. See Syringophyllum organum. ASTROCERIUM Hall. See Favosites Lamarck. ASTROCERIUM coNSTRiCTUM Hall. See Favosites constrictum. ASTROCERIUM PARASITICUM Hall. See Favosites hisingeri. ASTROCERIUM PYRIFORME Hall. See Favosites pyriformis. ASTROCERIUM VENUSTUM Whitfield. See Favosites hisingeri. ASTROCONIA Sollas. Genotype: A. granti Sollas. Astroconia Sollas, Quart. Jour. Geol. Soc. London, 36, 1881, p. 254. Miller, N. A. Geol. Pal., 1889, p. 154. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 83 Astroconia granti Sollas. Astroconia Grant! Sollas, Quart. Jour. Geol. Soc. London, 37, 1881, pp. 254, 255, figs. 1-11. Rauff, Palseontographica, 40, 1894, p. 278, fig. 58. Niagaran dolomite: Hamilton, Ontario. ASTROCRINITES Conrad. See Mariacrinus Hall. ASTROCRINITES PACHYDACTYLUS Conrad. See Melocrinus pachydactylus. ASTROCYSTITES Whiteaves. Genotype: A. ottawaensis Whiteaves. Astrocystites Whiteaves, Canadian Rec. Sci., 7, 1897, p. 287. Miller, N. A. Geol. Pal., 2d App., 1897, p. 734. Steganoblastus Whiteaves, Canadian Rec. Sci., 7, 1897, p. 305 (proposed to re- place Astrocystites which was believed to bo too much like Asterocystis Haeckel). Batlier,Treatise onZool., pt. 3, Echinoderma, London, 1900, p. 200, fig. 7. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 320. Springer, Zittel-Eastman Textb. Pal., 1, 1913, p. 160. A-strocystites ottawaensis Whiteaves. Astrocystites Ottawaensis Whiteaves, Canadian Rec. Sci., 7, 1897, p. 287, figs. 1-3. Steganoblastus canadensis (in error for ottawaensis) Whiteaves, Canadian Rec. Sci., 7, 1898, p. 396. Steganoblastus ottawaensis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 210, fig. 7. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 316, figs. 21, 21a, 22; p. 321, figs. 23, 24. Trenton (Curdsville) : Ottawa, Ontario. Astroporites Lambe. Genotype: A. ottawaensis Lambe. Astroporites Lambe, Canadian Rec. Sci., 7, 1896, p. 1. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 174. Astroporites ottawaensis Lambe. Astroporites Ottawaensis Lambe, Canadian Rec. Sci., 7, 1896, p. 1, pi. 1. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 173, 174. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 46. Trenton (Curdsville) : Hull near Ottawa, and Kirkfield, Ontario; Mercer County, Kentucky. Observation. This genus and species, originally described as a bryozoan, is founded upon the attached basal disk of some crinoid. ASTYLOMANON Rauff. See Palaaomanon Roemer. ASTYLOMANON CRATERA Rauff . See Palseomanon cratera. ASTYLOMANON CRATERA ARYBALLIUM Rauff. See Palaeomanon cratera. ASTYLOMANON CRATERA BALANTIUM Rauff. See Palseomanon cratera. ASTYLOMANON CRATERA CANTHARIUM Rauff. See Palaeomanou cratera. ASTYLOMANON CRATERA CYLIX Rauff. See Palseomanon cratera. ASTYLOMANON CRATERA LECYTHIUM Rauff. See Palaeomanon cratera. ASTYLOMANON CRATERA PATERA Rauff. See Palaeomanon cratera. ASTYLOMANON CRATERA POTERIUM Rauff. See Palaaomanon cratera. ASTYLOMANON CRATERA PROMISCUUM Rauff. See Pakeomanon cratera. 84 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ASTYLOMANON CRATERA PROTOTYPUM Rauff. See Palaeomanon cratera. ASTYLOMANON PLEURiEXCAVATUM Rauff. See Palseomanon pleuriexcavatum. ASTYLOMANON VERRUCOSUM Rauff. See Palaaomanon verrucosum. ASTYLOMANON VERRUCOSUM BULLIFERA Rauff. See Palaeomanon verrucosum btilli- fera. ASTYLOSPONGIA Roemer. Genotype: Siphonia praemorsa Goldfuss. Astylospongia Roemer, Sil. Fauna West Tennessee, 1860, p. 7; Cincinnati Quart. JOUT. Sci., 1, 1874, p. 31. Zittel, Ann. Mag. Nat. Hist., 4th ser., 20, 1877, p. 501; Neues Jahrb. Min., Geol. Pal., 1877, p. 353; Abh. math.-phys. Classe Akad. Wiss., 13, 1 Abth., 1878, p. 44. Martin, Arch. Ver. Freun. Naturg. Mechlenburg, Jahrg., 31, 1878, pp. 2, 18. Zittel, Handb. Pal., 1, 1879, p. 172. Roemer, Leth. geog., 1, Theil. Leth. Pal., Erste Lief., 1880, p. 307. Hinde, Cat. Foss. Sponges Brit. Mus., 1883, p. 91. Zittel, Ann. Mag. Nat. Hist., 5th ser. 14, 1884, p. 271; Neues Jahrb. f. Min., Geol. Pal., 2, 1884, p. 75. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1887, pp. 246, 247. Hinde, Mon. Brit. Foss. Sponges, Palaeont. Soc., 1888, p. 112. Miller, N.A. Geol. Pal., 1889, p. 154. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 55. Rauff, Palseontographica, 40, 1894, p. 289. James, Amer. Nat., 29, 1895, p. 543. Koken, Die Leitfossilien, 1896, p. 337. Zittel-Eastman Textb. Pal., 1, 1900, p. 50; 2d ed., 1913, p. 55. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 14. % ASTYLOSPONGIA (PALAEOMANON) BURSA Hall. See Palaeomanon btirsa. Astylospongia?? Christiana Meek and Worthen. Astylospongia?? Christiana Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 344, pi. 5, figs. 3a-c. Niagaran: Carroll County, Illinois. ASTYLOSPONGIA GREGARIA James. See Hindia gregaria. Astylospongia imbricato-articulata (Roemer). Siphonia imbricato-articulata Roemer, Neues Jahr. Min. Geol., Pal., 1848, p. 685. Astylospongia imbricato-articulata Roemer, Sil. Fauna West Tennessee, 1860, p. 12, pi. 1, figs. 5, 5a; Cincinnati Quar. Jour. Sci., 1, 1874, p. 191. Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 104; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 224. Foerste, Jour. Geol., 11, 1903, p. 714 (loc. occ.). Niagaran: Various localities in Decatur and Perry Counties, Tennessee (Browns- port); Louisville, Kentucky (Louisville). ASTYLOSPONGIA INCISO-LOBATA Roemer. See Caryomanon incisolobatum. ASTYLOSPONGIA INORNATA Hall. See Hindia sphseroidalis. Astylospongia parvula Billings. Astylospongia parvula Billings, Geol. Vermont, 2, 1861, p. 956; Rep. Econ. Geol. Vermont, 1862, p. 956; Pal. Foss., 1, Geol. Surv. Canada, 1863, p. 20. (Ad- vance sheets, 1861.) Trenton: Ottawa, Ontario. Astylospongia prseinorsa (Goldfuss). Siphonia praemorsa Goldfuss, Petref. Germ., 1826, p. 17, pi. 6, fig. 9a. Astylospongia prseniorsa Roemer, Sil. Fauna West Tennessee, 1860, p. 8, pi. 1, figs. 1, la-e. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 377, fig. 352 BIBLIOGRAPHIC LjJST OF GENERA AND SPECIES. 85 Astylospongia pramiorsa Continued. Roemer, Cincinnati Quart. Jour. Sci., 1, 1874, p. 32. Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 499, pi. 25, figs. 2, 2a. Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p. 307, pi. 9, figs, la-c. Miller, N. A. Geol. Pal., 1889, p. 154, fig. 91. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 224, fig. 3. Rauff, Palaeontographica, 40, 1894, p. 309, pi. 11, fig. 3. Walker, Jour, and Proc. Hamilton Assoc., 11, 1895, p. 87, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 14, fig. 22. Niagaran: West Tennessee, and many other localities. Plesiotypc.^t. No. 49719, U.S.N.M. Observation. A very complete bibliography of this species is given by Rauff, 1894. ASTYLOSPONGIA PR^MORSA Hall. See Astylospongia praemorsa pusilla. ASTYLOSPONGIA PR^MORSA Roemer. See Palseomanon verrucosum. ASTYLOSPONGIA PR^JMORSA var. NUXMOSCHATA Hall. See Caryospongia juglana nuxmoschata. Astylospongia praemorsa pusilla Rauff. Astylospongia praemorsa Hall, Trans. Albany Inst., 4, 1863, p. 228; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 3, figs. 4-14 (Museum ed., 1879); llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 222, pi. 2, figs. 4-11, 14. Astylospongia preemorsa var. pusilla Rauff, Palseontographica, 40, 1894, p. 309. Niagaran (Waldron) : Waldron, Indiana; Newsom, Tennessee. Plesiotypes.C&t. No. 46547, U.S.N.M. ASTYLOSPONGIA ROEMERI Hinde. See Caryomanon roemeri. ASTYLOSPONGIA STELLATIM-SULCATA Roemer. See Carpomanon stellatim-sulcatum. ASTYLOSPONGIA SUBROTUNDUS James. See Hindia subrotunda. ASTYLOSPONGIA TUMIDUS James. See Pasceolus darwini. ATACTOPORA Ulrich (part). See Atactoporella Ulrich. ATACTOPORA Ulrich. Genotype: Atactopora hirsuta Ulrich. Atactopora Ulrich (part), Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 119; Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154; 6, 1883, p. 245. Miller, N. A. Geol. Pal., 1889, p. 293. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 377; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 278. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 563. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, pp. 24, 31. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 334. Atactopora angularis Ulrich and Bassler. Atactopora angularis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 32, pi. 8, figs. 10-12. Richmond ( Waynesville) : Waynesville, Ohio. Holotype.C&t. No. 43193, U.S.N.M. Atactopora hirsuta Ulrich. Atactopora hirsuta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 1LO, pi. 12, figs. 3-3b; 6, 1883, p. 245, pi. 12, figs. 1, la. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 31, pi. 8, fig. 14. Eden and Maysville (Fairview): Covington and Newport, Kentucky; Cincinnati, Ohio. HolotypeGzt. No. 43619. U.S.N.M. 86 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Atactopdra intermedia Cumings and Galloway. Atactopora intermedia Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 73, pi. 4, figs. 2, 2a; pi. 5, figs. 1-ld. Eden (McMicken): Big Four Railroad, near Guilford, Indiana. Atactopora maculata Ulrich. Atactopora maculata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 121, pi. 12, figs. 2-22; 6, 1883, p. 245, pi. 12, figs. 2, 2a; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 466 (p. 278). Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 31, pi. 8, fig. 13. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333, fig. 483. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Holotype.C&t. No. 43619, U.S.N.M. ATACTOPORA MULTIGRANOSA Ulrich. See Atactoporella multigranosa. ATACTOPORA MUNDULA Ulrich. See Atactoporella mundula. ATACTOPORA ORTONI Ulrich. See Atactoporella ortoni. ATACTOPORA SEPTOSA Ulrich. See Amplexopora septosa. ATACTOPORA SUBRAMOSA Ulrich. See Heterotrypa subramosa. ATACTOPORA TENELLA Ulrich. See Atactoporella tenella. ATACTOPORELLA Ulrich. Genotype: Atactoporella typicalis Ulrich Atactopora Ulrich (part), Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 119. Peronopora Nicholson (part), Genus Monticulipora, 1881, p. 215. Atactoporella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 247. Miller, N. A. Geol. Pal., 1899, p. 293. Ulrich, Geol Surv. Illinois, 8, 1890, p. 370; Geol. Minnesota, 3, 1893, p. 222; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 272. Simpson, 14th Ann. Rep. State. Geol. New York for 1894, 1897, p. 585. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 28. Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 127. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 740. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 331. ATACTOPORELLA CRASSA Ulrich. See Homotrypella hospitalis crassa. Atactoporella insueta Ulrich. .Atactoporella insueta Ulrich, Geol. Minnesota, 3, 1893, p. 224, pi. 15, figs. 13-15; pi. 18, figs. 5-8. Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota. . No. 43805, U.S.N.M. Atactoporella multigranosa (Ulrich). Atactopora multigranosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 122, pi. 12, figs. 1, la. Atactoporella multigranosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 254, pi. 12, figs. 8, 8a. J. F. James, ibid., 18, 1895, p. 80. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 769, pi. 7, figs. 2, 2a. Maysville (Fairmount-Corryville): Hamilton, Morrow, and Cincinnati, Ohio; southeastern Indiana. Holotype.C&t. No. 43626, U.S.N.M. Atactoporella mundula (Ulrich). Atactopora mundula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 123, pi. 12, figs. 4, 4a.. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 87 Atactoporella mundula Continued. Atactoporella mundula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 252, pi. 12, figs. 6, 6a. J. F. James, ibid., 18, 1895, p. 80. Cumings, 32d Ann. Rep. Dep. Geol. Nat Res. Indiana, 1908, p. 770, pi. 7, figs. 3, 3a; pi. 26, fig. 6. Maysville (Fairmount): Covington, Kentucky, and Cincinnati, Ohio. Holotype.C&t. No. 43623, U.S.N.M. Atactoporella newportensls Ulrich. Atactoporella newportensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 250, pi. 12, figs. 4-4b. Miller, N. A. Geol. Pal., 1889, fig. 456, p. 29. Cum- ings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 770, pi. 7, fig. 4; pi. 26, fig. 7. Monticulipora newportensis James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 183. James, ibid., 16, 1894, p. 206. Eden (Economy): Newport, Kentucky. Cotypes.C&t. No. 43627, U.S.N.M. Atactoporella ortoni (Nicholson). Chsetetes Ortoni Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 513, pi. 29, figs. 15-15b; Pal. Ohio, 2, 1875, p. 211, pi. 22, figs. 3-3b. Atactopora ortoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 120 (gen. ref.). Monticulipora (Peronopora?) Ortoni Nicholson, Genus Monticulipora, 1881, p. 228, pi. 3, figs. 4-4d. Atactoporella ortoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 256, pi. 12, figs. 7, 7a. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 771, pi. 7, figs. 5, 5a; pi. 26, fig. 11. Monticulipora ortoni James and James, Jour. Cincinnati Soc. Nat. Hist., 1888, 11, p. 22. James, ibid., 18, 1895, p. 79. Maysville (Bellevue and Corryville) : Cincinnati, Ohio, and vicinity. Plesiotype.G&t. No. 43629, U.S.N.M. Atactoporella ramosa Ulrich. Atactoporella ramosa Ulrich, Geol. Minnesota, 3, 1893, p. 226, pi. 20, figs. 22-27. Black River (Decorah) : Cannon Falls, Minnesota. Cotypes. Cat. No. 43500, U.S.N.M. Atactoporella schucherti Ulrich. Atactoporella schucherti Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 251, pi. 12, figs. 5-5b. J. F. James, ibid., 18, 1895, p. 80. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 772, pi. 7, figs. 6, 6a. Richmond ( Waynesville-Whitewater) : Oxford, Waynesville, etc., Ohio; Rich- mond and Versailles, Indiana. Holotype.Czt. No. 43628, U.S.N.M. Atactoporella tenella (Ulrich). Atactopora tenella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 123, pi. 12, figs. 5, 5a. Atactoporella tenella Ulrich, ibid., 6, 1883, p. 24(5. J. F. James, ibid., 18, 1895, p. 80. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Eolotype.Q^t. No. 43624, U.S.N.M. Atactoporella typicalis (Ulrich). Atactoporella typicalis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 248, pi. 12, figs. 3-3d. J. F. James, ibid., 18, 1895, p. 80. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 272, fig. 450. Simpson, 14th Ann. Rep. State 88 BULLETIN 92,, UNITED STATES NATIONAL MUSEUM. Atactoporella typicalis Continued. Geol. New York for 1894, 1897, p. 585, figs. 165-167. Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 128, fig. 186b. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 332. Eden (Economy): Covington, Kentucky, and vicinity. Cotypes.C&t. No. 43625/U.S.N.M. Atactoporella typicalis prsecipta Ulrich. Atactoporella typicalis var. prsecipta Ulrich, Geol. Minnesota, 3, 1893, p. 223, pi. 15, figs."l6, 17, pi. 18, figs. 1-4. Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota. Cotypes.C&t. Nos. 43806, 43872, U.S.N.M. ATAXIACRINUS Lyon. See Anomalocrinus Meek. ATAXOCRINUS Bather. See Anomalocrinus Meek. ATELOCYSTIS Haeckel. See Ateleocystites Billings. ATELEOCYSTITES Billings. Genotype: A. huxleyi Billings. Ateleocystites Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3, 1858, pp. 72, 73. Chapman, Expos. Min. Geol. Canada, 1864, p. 110. Salter, Cat. Camb. Sil. Foss., 1873, p. 128. Zittel, Handb. Pal., 1, Munich, 1879, p. 413. Woodward, Geol. Mag., dec. 2, 7, 1880, p. 194. Walther, Pakeonto- graphica, 32, 1886, p. 193. Miller, N. A. Geol. Pal., 1st App., 1892, p. 674. Ateleocystis Haeckel, Amphorideen u. Cystoideen, 1896, p. 41, pi. 2, figs. 10-12. Enoploura Wetherby, Jour. Cincinnati Soc. Nat. Hist., 1, 1879, p. 163. Jaekel, Zeits. d. d. Geol. Gesell., 52, 1900, p. 668. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 51 (Genotype Anomalocystites balanoides Meek). Anomalocystites in part of authors. Ateleocystites balanoides (Meek). Anomalocystites (Ateleocystites?) balanoides Meek, Amer. Jour. Sci. Arts, 3d ser., 3, 1872, p. 423; Geol. Surv. Ohio, 1, pt. 2, 1873, p. 41, pi. 3, bis. fig. 6a-c. Enoploura balanoides Wetherby, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 162, pi. 7, figs, larg; p. 164, pi. 1, figs. 1-5. Ateleocystites balanoides Woodward, Geol. Mag., dec. 2, 7, 1880, p. 198, pi. 6, figs. 5-15. Anomalocystites balanoides Miller, N. A. Geol. Pal., 1889, p. 224, fig. 247. Placocystis balanoides Haeckel, Amphorideen u. Cystoideen, 1896, pi. 2, figs. 5-7. Placocystis Crustacea Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 39, figs. 1, 2. Enoploura Crustacea Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 51. Maysville (Corryville): Cincinnati, Ohio, and vicinity. Ateleocystites huxleyi Billings. Ateleocystites Huxleyi Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3, 1858, pp. 72, 73, fig. 4. Woodward, Geol. Mag., 7, 1870, p. 261, footnote; 8, 1871, p. 72, text figs. 1-7; dec. 2, 7, 1880, pi. 6, fig. 1. Anomalocystites Huxleyi Miller, N. A. Geol. Pal., 1889, p. 224. Ateleocystis Huxleyi Haeckel, Amphor. und Cystoid., 1896, p. 41. Trenton (Curdsville): Hull and Ottawa, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 89 ATHYRIS McCoy. Genotype: Terebratula concentrica Von Buch. Athyris McCoy, Carb. Fossils Ireland, 1844, pp. 128, 146. Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 73. Billings, Canadian Jour., 5, 1860, p. 273; 6, 1861, p. 138; Pal. Fossils, 1, 1862, p. 144. Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, pp. 152, 258; Pal. New York, 4, 1867, p. 282. Billings, Amer. Jour. Sci., 44, 1867, p. 48. Herrick, Bull. Denison Univ., 4, 1888, p. 14. Nettelroth, Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky, 1889, p. 87. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 83, fig. 57 on p. 86; 13th Ann. Rep. New York State Geol., 1895, p. 777. Spirigera D'Orbigny, Paris Acad. Sci., Comptes Rendus, 25, 1847, p. 268. Euthyris Quenstedt, Petrefactenkunde Deutschlands, 1871, p. 442. ATHYRIS Billings (1863). See Meristella Hall. ATHYRIS ANTICOSTIENSIS Billings. See Catazyga anticostiensis. ATHYRIS BOREALIS Billings. See Catazyga headi borealis. ATHYRIS CYLINDRICA Billings. See Whitfieldella cylindrica. ATHYRIS HEADI Billings. See Catazyga headi. ATHYRIS HEADI ANTICOSTIENSIS Billings. See Catazyga anticostiensis. ATHYRIS HEADI BOREALIS Billings. See Catazyga headi borealis. ATHYRIS INTERMEDIA Nicholson and Hinde. See Whitfieldella intermedia. ATHYRIS JULIA Billings. . See Whitfieldella(?) julia. ATHYRSIS JUNIA Billings. See Hyattidina congesta junia. ATHYRIS LARA Billings. See Whitfieldella lara. ATHYRIS NAVIFORMIS Billings. See Whitfieldella(?) naviformis. ATHYRIS NITIDA Hall. See Whitfieldella nitida. ATHYRIS PRINSTANA Billings. See Hindella prinstana. ATHYRIS SOLITARIA Billings. See Whitfieldella? solitaria. ATHYRIS? TRISINUATUS McChesney. See Meristina trisinuata. ATHYRIS TITMIDA Roemer. See Meristina maria roeineri. Athyris(?) tumidula Billings. Athyris tumidula Billings, Cat. Sil. Foss. Anticosti, 1866, p. 47. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 150. Anticostian (Gun River and Jupiter River): Jupiter River, etc., Anticosti. ATHYRIS TURQIDA Shaler. See Hindella prinstana. ATHYRIS UMBONATA Billings. See Hindella umbonata. ATOPS FISCHERI Miller. See Triarthrus fischeri. 90 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ATRYPA Dalman. Genotype: Anomia reticularis Linnaeus. Atrypa Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 102. Billings, Canadian Nat. Geol., 1, 1856, p. 134; Canadian Jour., 6, 1861, p. 264. Chap- man, Canadian Jour., n. s., 7, 1862, p. 114; Expos. Min. Geol. Canada, 1864, p. 117. Whitfield, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 141, pi. 1. Hall, Pal. New York, 4, 1867, p. 312. Zittel, Handb. Pal., 1, Munich, 1880, p. 688. Davidson, Mon. Brit. Foss. Brachiopoda, 5, Sil. Suppl., Pal. Soc., 1882, p. 84. Miller, N. A. Geol. Pal., 1889, p. 335. Nettelroth, Ken- tucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 88. Beecher, Amer. Jour. Sci., 3d ser., 44, 1892, p. 147. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 163; 13th Ann. Rep. New York State Geol., 1895, p. 818. Koken, Die Leitfossilien, Leipzig, 1896, p. 241, fig. 202, 203. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 226; Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 334. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 195. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309. Schuchert, Zittel- Eastman Textb. Pal., 1913, p. 409. ATRYPA ACUTIROSTRA Hall. See Zygospira(?) acutirostris. ATRYPA AFFINIS Vanuxem. See Atrypa reticularis. ATRYPA ALTILIS Hall. See Camarotcechia plena. ATRYPA AMBIGUA Hall. See Camarella ambigua. ATRYPA APRINIS Hall. See Homoeospira aprinifonnis. Atrypa arctostriata (Foerste). Atrypa reticularis arctostriatus Foerste, Jour. Geol., 11, 1903, p. 710. Atrypa arctostriata Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 93, pi. 2, figs. 34A, B. Niagaran (Brownsport): Near Brownsport Furnace, three miles west Vice Land- ing, Tennessee. Atrypa? biconvexa Maynard. Atrypa? biconvexa Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 393, pi. 68, figs. 1-3. Helderbergian (Keyser): Keyser, West Virginia; Cash Valley, Maryland. ATRYPA BIDENS Hall. See Rhynchonella(?) bidens. ATRYPA BIDENTATA Hall. See Rhynchonella(?) bidentata. ATRYPA BISULCATA Hall. See Cyclospira bisulcata. ATRYPA BREVIROSTRIS Hall. See Anastrophia brevirostris. Atrypa calvini Nettelroth. Atrypa calvini Nettelroth, Kentucky Foss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 89, pi. 32, figs. 64-66. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 440, pi. 8, figs. 13-15. Niagaran: Louisville, Kentucky (Louisville); Delphi, Pendleton, etc., Indiana (Noblesville). Holotype.Czt. No. 51331, U.S.N.M. ATRYPA CAMURA Hall. See Trematospira camura. ATRYPA CAPAX Conrad. See Rhynchotrema capax. ATRYPA CHEMUNQENSIS Conrad. See Atrypa reticularie. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 91 ATRYPA CIRCULARIS Hall. See Parastrophia hemiplicata. ATRYPA CONGESTA Conrad. See Hyattidiua congesta. ATRYPA CORALLIPERA Hall. See Dictyonella corallifera. ATRYPA CRASSIROSTRA Hall. See Whitfieldella cylindrica. ATRYPA CUNEATA Hall. See Rhynchotreta cuneata americana. ATRYPA CUSPIDATA Hall. See Triplecia cuspidata. ATRYPA CYLINDRICA Hall. See Whitfieldella cylindrica. ATRYPA DEFLECTA Hall. See Zygospira deflecta. ATRYPA DENTATA Hall. See Rhynchotrema dentatum. ATRYPA DISPARILIS Hall. See Atrypina diaparilis. ATRYPA DUBIA Hall. See Protorhyncha dubia. ATRYPA EMACERATA Hall. See Rhynchonella emacerata. ATRYPA EQUIRADIATA Hall. See Camarotcechia sequiradiata. ATRYPA EXIGUA Hall. See Zygospira exigua. ATRYPA EXTANS Emmona. See Triplecia extana. ATRYPA FLAB ELLA Shaler. See Cceloapira hemiapherica. ATRYPA GALEATA Dalman. See Gypidula (Sieberella) galeata. ATRYPA GRAYI Davidson. See Streptia grayi. Atrypa(?) gibbosa Hall. Atrypa gibbosa Hall, Pal. New York, 2, 1852, p. 79, pi. 20, fig. 30. Clinton: Clinton, New York. ATRYPA HEMIPLICATA Hall. See Paraetrophia hemiplicala. ATRYPA HEMISPHERICA Sowerby. See Ccelospira hemiapherica. ATRYPA IMBRICATA Hall. See Atrypa nodostriata. ATRYPA IMPRESSA Shaler. See Atrypa reticularis. ATRYPA INCREBESCENS Hall. See Rhynchotrema capax and R. inaequivalve. ATRYPA INTERMEDIA Hall. See Whitfieldella intermedia. ATRYPA INTERPLICATA Hall. See Anastrophia interplicata. ATRYPA L^JVIS Vanuxem. See Whitfieldella Isevis. ATRYPA LAMELLATA Hall. See Camarotcechia lamellata. ATRYPA? LARA Schuchert. See Whitfieldella? lara. Atrypa laticorrugata Foerate. Atrypa lati-corrugata Foerste, Geol. Ohio, 7, 1895, p. 591, pi. 57A, fig. 16. Upper Medinan (Brasafield): Dayton, Ohio. ATRYPA LENS Sowerby. See Stricklandinia lens. ATRYPA LENTIFORMIS Vanuxem. See Atrypa reticularis. 92 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Atrypa mansoiiii (Salter). Rhynchonella mansonii Salter, Sutherland's Jour. Voyage Baffins Bay, etc., 2, 1852, p. ccxxi, pi. 5, fig. 5. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 596. Atrypa masonii Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 153. Niagaran: Near Wellington Channel, Bessels Bay, Arctic America. Atrypa marginalis (Dalman). Terebratula marginalis Dalman, Kongl. Svenska Vet.-Akad. Handl. for 1827, 1828, p. 59, pi. 6, fig. 6. Atrypa marginalis Roemer, Sil. Fauna west. Tennessee, 1860, p. 69, pi. 5, fig. 10. Billings, Cat. Sil. Foss. Anticosti, 1866, p. 46. Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 197. Davidson, Geol. Mag., dec. 2, 8, 1881, p. 10, fig. 9; Mon. Brit. Foss. Brachiopoda, 5, Sil. Suppl., Pal. Soc., 1882, p. 122. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 314, pi. 6, figs. 8, 9; Geol. Ohio, 7, 1895, p. 591, pi. 25, figs. 6, 9; pi. 31, figs. 8, 9. Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 55, figs. 24, 25. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309. Trematospira rnatthewsoni McChesney, Descriptions New Pal. Fos'., 1860, p. 71; Trans. Chicago Acad. Sci., 1, 1868, p. 32, pi. 7, fig. 3. Atrypa nodostriata Foerste (not Hall), Bull. Denison Univ., 1, 1885, p. 90, pi. 13, fig. 9. Atrypa marginalis var. multistriata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 316, pi. 6, fig. 8. Silurian: Europe; Anticosti, etc., Canada; New York, Pennsylvania, Ohio, etc. (Brassfield-Niagaran) . ATRYPA MARGINALIS var. MULTISTRIATA Foerste. See Atrypa marginalis. ATRYPA MODESTA Hall. See Zygospira modesta. ATRYPA NAVIFORMIS Hall. See Whitfieldella(?) naviformis. ATRYPA NEGLECTA Hall. See Camarotcechia (Stegerhynchus) neglecta. ATRYPA NITIDA Hall. See Whitfieldella nitida. ATRYPA NITIDA var. OBLATA Hall. See Whitfieldella oblata. ATRYPA NODOSTRIATA Foerste. See Atrypa marginalis. Atrypa nodostriata Hall. Atrypa imbricata Hall (not Sowerby), Geol. New York, Rep. 4th Dist., 1843, Tab. Org. Rem., 13, fig. 1. Atrypa nodostriata Hall, Pal. New York, 2, 1852, p. 272, pi. 56, fig. 2. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 133, pi. 7, figs. 12-14. Safford, Geol. Ten- nessee, 1869, p. 315, text fig. 5. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 196, fig. 114; Bull. New York State Mus., 45, 1901, p. 196, fig. 113. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309, fig. 387. Niagaran: Lockport, etc., New York (Rochester); Ontario; Ohio; Kentucky; Wisconsin; Tennessee. ATRYPA NUCLEOLATA Hall. See Whitfieldella(?) nucleolata. ATRYPA NUCLEUS Hall. See Triplecia nucleus. ATRYPA OBTUSIPLICATA Hall. See Camarotcechia obtusiplicata. Atrypa orbicularis Owen. Atrypa orbicularis Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844, p. 80, pi. 15, fig. 9. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 93 Atrypa orbicularis Continued. Ordovician: Iowa. Observation. Not recognized. Figure represents internal cast of some unde- termined brachiopod. ATRYPA PHOCA of authors. See Lissatrypa phoca. ATRYPA PLANOCONVEXA Hall. See Coelospira planoconvexa. ATRYPA PLENA Hall. See Camarotcechia plena. ATRYPA PLICATA Hall. See Rhynchonella plicata. ATRYPA PLICATELLA Hall. See Rhynchonella plicatella. ATRYPA PLICATULA Hall. See Coelospira plicatula. ATRYPA PLICIFERA Hall. See Camarotocchia plena. Atrypa prsemarginalis Savage. Atrypa preemarginalis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 84, pi. 4, figs. 14-16. Upper Medinan (Edgewood): Near Edgewood and Watson Station, Pike County, Missouri; near Thebes, Illinois. ATRYPA PRISCA Vanuxem. See Atrypa reticularis. Atrypa putilla (Hall and Clarke). Zygospira putilla Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 157, fig. 150; p. 365, pi. 54, figs. 35-37; pi. 83, figs. 29, 30. Hall, 48th Rep. New York State Mus., 2, 1897, p. 362, pi. 9, figs. 31, 32. Hall and Clarke, 14th Rep. State Geol. New York for 1894, 1897, p. 362, pi. 9, figs. 31, 32. Atrypa putilla Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 85, pi. 4, fig. 25. Upper Medinan (Edgewood): Thebes, Illinois; Edgewood and Louisiana, Mis- souri. ATRYPA QUADRICOSTATA Hall. See Hyatticlina congesta. ATRYPA RECURVIROSTRIS Hall. See Zygospira recur virostris. Atrypa reticularis (Linnseus). Anomia reticularis Linnseus, Syst. Nat., 12th ed., 1, 1767, p. 1132. Atrypa chemungensis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 265. Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 182, fig. 4. Hipparionyx consimilaris Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 132, fig- 2. Atrypa affinis Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 88, fig, 12. Hall, ibid., Rep. 4th Dist., 1843, p. 88, fig. 12. Atrypa prisca Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 139, fig. 5. Hall, ibid., Rep. 4th Dist., 1843, p. 175, fig. 5; p. 198, fig. 4. Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 1844, pi. 12, figs. 2, 10. Billings, Canadian Nat. Geol., 1, 1856, p. 474, pi. 7, fig. 11. Atrypa lentiformis Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 163, fig. 3, p. 164. Hall, ibid., Rep. 4th Dist., 1843, p. 215, fig. 3. Strophomena ithacensis Vanuxem Geol. New York, Rep. 3d Dist., 1842, p. 174, fig. 2. Atrypa tribulis Hall, Geol. New York, Rep. 4th Dist., 1843, p. 271, fig. 3. Terebratula prisca Castelnau, Essai Syst., Sil. I'Amerique Septent., 1843, p. 40, pi. 13, fig. 8. 94 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Atrypa reticularis Continued. Terebratula reticularis Hall, Amer. Jour. Sci., 2d ser., 20, 1849, p. 227. Yandell and Shumard, Cont. Geol. Kentucky, 1847, p. 10. Atrypa impressa Shaler (not Hall), Bull. Mus. Comp. Zool., 4, 1865, p. 68. Atrypa reticularis Hall, Pal. New York, 2, 1852, p. 72, pi. 23, fig. 8; p. 270, pi. 55, fig. 5. Billings, Canadian Nat. Geol., 1, 1856, p. 137, pi. 2, fig. 10. Hall, Geol. Surv. Iowa, 2, 1858, p. 515; Pal. New York, 3, 1859, p. 253, pi. 42, fig. 1. Roemer, Sil. Fauna west. Tennessee, I860, p. 69, pi. 5, fig. 9. Bil- lings, Canadian Jour., 6, 1861, p. 264, figs. 84-87; Geol. Canada, 1863, p. 318, fig. 335; p. 384, fig. 416. Hall, Pal. New York, 4, 1867, p. 316, pi. 52, figs. 1-3, 7-12; pi. 53, figs. 3-19; pi. 53A, figs. 22, 23. Meek, Trans. Chicago Acad. Sci., 1, 1868, p. 97, pi. 13, fig. 13. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 432, pi. 13, fig. 11. Meek, Simpson's Rep. Expl. Great Basin Terr. Utah, 1876, p. 347, pi. 1, fig. 6. King's U. S. Geol. Surv. Expl. 40th Parl., 4, 1877, p. 38, pi. 1, fig. 7; pi. 3, fig. 6. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 596. Hall, 28th Rep. New York. State Mus. Nat. Hist., 1879, p. 162, pi. 25, figs. 44-47. White, 2d Ann. Rep. Indiana Bureau Statistics and Geol., 1880, p. 502, pi. 5, figs. 7-9; 10th Rep. State Geol. Indiana, 1881, p. 134, pi. 5, figs. 7-9; llth Rep., 1882, p. 304, pi. 25, figs. 44-47. Whitfield, Geol. Wisconsin, 4, 1882, p. 333, pi. 26, fig. 6. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 150, pi. 14, fig. 6. Beecher and Clarke, Mem. New York State Mus. Nat. Hist., 1, 1889, p. 51, pi. 4, figs. 12-20. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Surv., 1889, p. 91, pi. 14, figs. 12-23; pi. 15, fig. 1. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 314. Whiteaves, Cont. Canadian Pal., 1, 1892, p. 289, pi. 37, fig. 8. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 165, fig. 153; pi. 55, figs. 1-17. Herrick, Geol. Ohio, 7, 1895, pi. 20, fig. 7. Davidson, Mon. British Devonian Brach. Pal. Soc., 1864, p. 53, pi. 10, figs. 3, 4.; 1867, p. 129, pi. 14, figs. 1-22; 1882, pp. 109, 110, figs. ; pi. 6, figs. 14, 15; pi. 7, figs. 1-6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, pp. 57-60, figs. Miller, N. A. Geol. Pal., 1889, pp. 336, 337, figs. 541-543. Grabau, Bull. Buffalo Soc. Nat. Sci., 8, 1901, p. 195, fig. 112; Bull. New York State Mus., 45, 1901, p. 195, fig. 112. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 440, pi. 8, figs. 16-18. Grabau, Michigan Geol. Surv., geol. ser. 1, 1909, p. 162, pi. 20, fig. 1. Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 392, pi. 67, figs. 26-28. Holtedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32, 1914, p. 23, pi. 8, fig. 5. Silurian and Devonian: World-wide distribution. ATRYPA RETICULARIS ARCTOSTRIATUS Foerste. See Atrypa arctostriata. Atrypa reticularis newsomensis Foerste. Atrypa reticularis newsomensis Foerste, Jour. Geol., 11, 1903, p. 710. Foreste, Bull. Sci. Lab. Denison Univ. 14, 1909, p. 93, pi. 1, fig. 11A, B. Niagaran (Waldron): Newsom, etc., Tennessee. Atrypa reticularis niagarensis Nettelroth. Atrypa reticularis var. niagarensis Nettelroth, Kentucky Fossils Shells, Mem. Kentucky Geol. Surv., 1889, p. 92, pi. 32, figs. 5-8, 44-47. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 13. Niagaran (Waldron-Louisville) : Louisville, etc., Kentucky; Clarke County, Wal- dron, etc., Indiana; Newsom, etc., Tennessee. Cotypes. Cat. No. 51314, U.S.N.M. BIBLIOGRAPHIC UST OF GENERA AND SPECIES. 95 ATRYPA ROBUSTA Hall. See Rhynchotreta robusta. Atrypa rugosa Hall. Atrypa rugosa Hall, Pal. New York, 2, 1852, p. 271, pi. 56, fig. 1. Hall and Clarke, ibid., 8, pt. 2, 1893, p. 171. Grabau, Bull. New York State Mus., 45, 1901, p. 196, fig. 114; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 196, fig. 114. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 310, fig. 388. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 13, pi. 2, fig. 6. Rhynchonella rugosa Billings, Geol. Canada, 1863, p. 315, fig. 321. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 899, fig. Niagaran: Lockport, etc., New York, and Ontario (Rochester); Indiana; Ohio (West Union); Kentucky; Anticosti. ATRYPA SEMIPLICATA Conrad. See Camarotoechia semiplicata. ATRYPA SORDIDA Hall. See Plectorthis (Encuclodema) sordida. ATRYPA SUBTRIGONALIS Hall. See Rhynchotreina subtrigonale. ATRYPA SULCATA Vanuxem. See Whitfieldella sulcata. ATRYPA TRIBULIS Hall. See Atrypa reticularis. Atrypa tubulistriata Savage. Atrypa tubulistriata Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 86, pi. 5, figs. 23 and 21. Upper Medinan (Edgewood): Louisiana and mouth of Buffalo Creek, Pike County, Missouri; south of Hamburg, Illinois. ATRYPINA Hall and Clarke. Genotype: Leptocoalia imbricata Hall. Atrypina Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 161, fig. 152; 13th Ann. Rep. New York State Geol. 1895, p. 815. Schuchert, Zittel-Eastman Textb. Pal., 1900, p. 334; 2d ed., 1913, p. 408. Atrypina clintoni Hall and Clarke. Atrypina clintoni Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 162, pi. 53, figs. 7, 17-19; pi. 83, fig. 6; 48th Rep. New York State Mus., 2, 1897, p. 362, pi. 9, figs. 27-30; 14th Rep. State Geol. New York for 1894, 1897, p. 362, pi. 9, figs. 27-30. Clinton: Orleans County, New York. Atrypina disparilis (Hall). Atrypa disparilis Hall, Pal. New York, 2, 1852, p. 277, pi. 57, fig. 6. Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 53, figs. 1-4. Leptocoelia disparilis Hall, 12th, Rep. New York State Cab. Nat. Hist., 1859, p. 77. Trematospira? disparilis Hall, 16th Rep., ibid., 1863, p. 60; Trans. Albany Institute, 4, 1863, p. 146. Crelospira disparilis Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, p. 162, pi. 25, figs. 39-43; llth Rep. State Geol. Indiana, 1882, p. 363, pi. 25, figs. 39-43. Beecher and Clarke, Mem. New York State Mus. Nat. Hist., 1, 1889, p. 64, pi. 5, figs. 17-23. Atrypina disparilis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 156. Niagaran: Wolcott, etc., New York (Wolcott-Rochester); Waldron, Indiana; Tennessee (Waldron). Atrypina intermedia (Hall). Leptoccelia intermedia Hall, Canadian Nat. Geol., 1860, 5, p. 147, fig. 5. Dawson, Acadian Geology, 3d ed., 1878, p. 598, fig. 202. Atrypina intermedia Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 157 (gen. ref.). Silurian: Arisaig, Nova Scotia. 96 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. AULO CERIUM Parks. Genotype: A. savagei Parks. Aulocerium Parks, Univ. Toronto Studies, Geol. Ser., 6, 1909, p. 44. Aulocerium savage! Parks. Aulocerium savagei Parks, Univ. Toronto Studies, Geol. Ser., 6, 1909, p. 44, pi. 18, figs. 13 and 15. Niagaran: Wilmington, Illinois. AULO CO PELL A Rauff. Genotype: A. winnipegensis Rauff. Aulocopella Rauff, Palaeontographica, 41, 1895, p. 268. Aulocopella winnipegensis Rauff. Aulocopella winnipegensis Rauff, Palseontographica, 41, 1895, p. 269, fig. 124, pi. 24, figs. 4-6. Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, pp. 145, 146, fig. 9, pi. 16, figs. 1-3. Black River or Richmond: Cat Head, Lake Winnipeg, Canada. AULOCOPINA Billings. Genotype: A. granti Billings. Aulocopina Billings, Canadian Nat., n. s., 7, 1874, p. 230. Miller, N. A. Geol. Pal., 1889, p. 154. Zittel-Eastman Textb. Pal., 1, 1900, p. 47; 2d ed., 1913, p. 53. Aulocopina granti Billings. Aulocopina Granti Billings, Canadian Nat., n. s., 7, 1874, p. 231, figs. 1, 2. Walker, Jour, and Proc. Hamilton Assoc., 11, 1895, p. 86, fig. 2. Niagaran dolomite: Hamilton, Ontario. AULOPOBA Goldfuss (part). See Stomatopora Bronn. AULO FOR A Goldfuss. Genotype: A. serpens Goldfuss. Aulopora Goldfuss, Petrefacta Germ., 1826, pp. 82, 245. Fischer de Waldheim, Oryctographie Gouv. Moscou, 1837, p. 162. Dana, Wilkes' U. S. Expl. Exped., 7, Zoophytes, 1842, p. 630. McCoy, Syn. Foss. Carb. Ireland, 1844, p. 190. King, Mon. Permian Foss. England, Pal. Soc., 1850, p. 31. Edwards and Haime, Mono. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, pp. 159, 311. Pictet, Traite de Pal., 2d ed., 4, 1859, p. 463. Billings, Canadian Jour., n. s., 4, 1859, p. 118. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 319. Koninck, Animaux Foss. Terr. Carb. Belgique (Mem. 1'Acad. Royale Sci. de Belgique, 39), 1872, p. 148. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 42. Nicholson, Trans. Royal Soc. Edinburgh, 27, 1876, p. 241. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 87. Nicholson, Tab. Corals Pal. Period, 1879, p. 219. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 518. Hall and Simpson, Pal. New York, 6, 1887, p. xi. Miller, N. A. Geol. Pal., 1889, p. 173. Beecher, Trans. Connecticut Acad. Arts and Sci., 8, 1891, p. 210. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 217. Sardeson, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 10, 1896, p. 339. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 131. Zittel-East- man Textb. Pal., 1, 1900, p. 101. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 78. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 116. AULOPORA ARACHNOIDEA Hall. See Stomatopora arachnoidea. AULOPORA CONSIMILIS Lonsdale. See Berenicea consimilis. AULOPORA FRONDOSA James. See Proboscina frondosa. BIBLIOGRAPHIC LJST OF GENERA AND SPECIES. 97 Aulopora precius Hall. Aulopora precius Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875 (1877), pi. 9, figs. 5, 6; Mus. ed., 1879; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 227, pi. 8, figs. 5, 6. Roerner, Lethsea geog. , pt. 1, Leth. Pal., 1883, p. 521. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 97, fig. 20. Niagaran: Waldron, Indiana, etc. (Waldron); Louisville, Kentucky (Louisville). Aulopora precius compressus Foerste. Aulopora precius compressus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890 p 339. Upper Medinan (Brassfield) : Ludlow Falls, Ohio. Aulopora pygmoea Davis. Aulopora pygmoea Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 73, figs. 5, 6. Niagaran (Louisville): Near Louisville, Kentucky. AULOPORA REPENS Roemer. See Aulopora roeineri. Aulopora roemeri Foerste. Aulopora repens Roemer (not Knorr and Walsh, 1775), Sil. Fauna West Tennes- see, 1860, p. 28, pi. 2, fig. 1, la. Aulopora roemeri Foerste, Jour. Geol., 11, 1903, p. 712. Niagaran (Brownsport): Perry and Decatur Counties, Tennessee. Aulopora schohariae Hall. Aulopora scholiariae Hall, 26th Rep. New York State Mus., 1874, p. 110; 32d Rep. 1879, p. 142; Rep. New York State Geol. for 1882, 1883, pi. 2, figs. 1-6; Pal. New York, 6, 1887, p. 3, pi. 2, figs. 1-6. Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 219, pi. 26, figs. 2, 3. Helderbergian: Schoharie and Clarksville, New York (New Scotland); Hyndman, Penn sy Ivania ( Key ser ) . Aulopora schucherti Swartz. Aulopora schucherti Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 219, pi. 26, figs. 4, 5. Helderbergian (Keyser): Keyser, West Virginia; Cash Valley, Hancock, etc., Maryland; Hyndman, Pennsylvania. Aulopora serpens Owen. Aulopora serpens Owen (not Goldfuss, 1829), Geol. Expl. Iowa, Wisconsin, and Illinois, 2d ed., 1844, p. 78, pi. 14, fig. 2. Niagaran: Iowa and Wisconsin. Aulopora(?) trentonensis Winchell and Schuchert. Aulopora(?) trentonensis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 95, pi. G, figs. 26-28. Black River (Decorah): Minneapolis, near Cannon Falls, etc., Minnesota. AULOPORA UMBELLIFERA Billings. See Romingeria umbellifera. Aulopora vanclevil Hall. Aulopora Vanclevii Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 255, pi. 4, figs. 1, 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 67, figs. Niagaran (Louisville) : Falls of the Ohio. AUSTINELLA Foerste. See Plectorthis subgenus Austinella. 84243 Bull. 9215 7 98 BULLETIN 92. UNITED STATES NATIONAL MUSEUM. AVICULA Klein. Genotype: A. hirundo Klein. Avicula Klein, Ostrac., 1873. McCoy, Syn. Char. Foss., 1844, p. 82. Wood- ward, Man. Mollusca, pt. 2, 1854, p. 260, pi. 16, fig. 18. McCoy, Brit. Pal. Rocks and Foss., 1854, p. 257. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 597. Zittel, Handb. Pal., 2, Munich, 1881, p. 32. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 188], p. 289. Barrande, Syst. Sil. Centre Boheme, 6, 1881, p. 23. Miller, N. A. Gaol. Pal., 1889, p. 463 Jackson, Amer. Nat., 24, 1890, p. 1141. Koken, Die Leitfossilien, Leipzig, 1896, p. 187. AVICULA ALATA Nicholson. See Modiolopsis primigenia. AVICULA AVIFORMIS Conrad. See Prolobella trentonensis. AVICULA CARINATA Emmons. See Byssonychia carinata. AVICULA COMMUNIS Hall. See Actinopteria communis. AVICULA CORRUGATA James. See Pterinea corrugata. AVICULA DANBYI McCoy. See Palaeopecten danbyi. AVICULA DEMISSA Conrad. See Pterinea demissa. AVICULA ELLIPTICA Hall. See Prolobella subelliptica. AVICULA EMACERATA Conrad. See Pterinea emacerata. Avicula?? ferruginea Conrad. Avicula ferruginea Conrad, Proc. Acad. Nat. Sci. Philadelphia, 3, 1846, p. 23, pi. 1, fig. 28. Silurian (iron ore) : Jersey Shore, Lycoming County, Pennsylvania. AVICULA HERMIONE Billings. See Prolobella? hermione. AVICULA HONEYMANI Miller. See Pterinea honeymani. AVICULA INSUETA Emmons. See Pterinea insueta. Avicula lamellosa Dawson. Avicula lamellosa Dawson, Canadian Nat., n. s., 9, 1880, p. 342. Silurian: Pictou, Nova Scotia. AVICULA LEPTONOTA Hall. See Pterinea emacerata. AVICULA LIM.EFORMIS Hall. See Limoptera limaeformis. AVICULA OBSCURA Hall. See Pterinopecten? obscura. AVICULA? ORBICULATA Hall. See Amphiccelia orbiculoides. AVICULA RHOMBOIDEA Hall. See Leptodesma rhomboidea. AVICULA RUGOSA Vanuxem. See Pterinea subrugosa. AVICULA SECURIFORMIS Hall. See. Pterinea securiformis. AVICULA SUBARCUATA Emmons. See Modiolopsis arcuata. AVICULA SUBELLIPTICA Emmons. See Prolobella subelliptica. AVICULA SUBPLA.NA Hall. See Leiopteria subplana. AVICULA SUB RECTA Hall. See Pterinea subrecta. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 99 AVICULA SUBRETROFLEXA D'Orbigny. See Pterinea demissa. AVICULA HUBRUGOSA D'Orbigny. See Pterinea subrugosa. AVICULA TENUILAMELLATA Hall. See Aviculopecten tenuilamellatus. AVICULA TRENTONENSIS Conrad. See Prolobella trentonensis. A vie 11 1 a triquetra Hall. Avicula triquetra Hall, Nat. Hist. New York, Geol., 4, 1843, p. 137, fig. 7. Niagaran (Guelph): Newark, Wayne County, New York. AVICULA UNDATA Hall. See Pterinea undata. Avicula? undosa Ringueberg. Avicula undosa Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 18, pi. 2, fig. 9. Clinton (Rochester): Lockport, New York. Avicula welchi James. Not recognized. Avicula welchi James, Cincinnati Quart. Jour. Sci., 1, 1874, p. 239. Richmond: Clinton County, Ohio. AVICULA WHITFIELDI Foerste. See Cyrtodonta? ferruginea. AVICULOPECTEN McCoy. Genotype: A. planoradiatus McCoy. Aviculopecten McCoy, Ann. Mag. Nat. Hist., 2d ser., 7, 1851, p. 171, fig; Contr. British Pal., 1854, p. 203, fig.; British Pal. Rocks and Foss., 1854, p. 392. Meek, Amer. Jour. Sci. and Arts, 2d ser., 37, 1864, p. 217. Meek and Hay- den, Pal. Up. Missouri, Smiths. Cont. Knowl., 172, 14, 1865, p. 49. Meek, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 175; 44, 1868, p. 64. Zittel, Handb. Pal., 2, Munich, 1881, p. 30. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1881, p. 300. Barrande, Syst. Sil. du Centre Boheme, 6, 1881, p. 22; Acephales Ext. Syst. Sil. du Centre Boheme, 1881, p. 34. Hall, Pal. New York, 5, pt. 1, Lam. (adv. copy), 1883, p. 3; 4th Rep. State Geol. New York, 1885, p. 47, figs. 1, 2; 1st Rep. State Geol. New York, 1884, p. 12; Pal. New York, 5, pt. 1, Lam. 1, 1884, p. xii; 35th Rep. New York State Mus., 1884, p. 406b. Miller. N. A. Geol. Pal., 1889, p. 465. Koken, Die Leitfos- silien, Leipzig, 1896, p. 185. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 240. Girty, Amer. Geol., 33, 1904, pp. 291, 292, fig.; 34, 1904, p. 332. Hind, ibid., 34, p. 200. Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 457. AVICULOPECTEN SUBRECTUS Miller. See Pterinea subrecta. Aviculopecten tenuilamellatus (Hall). Avicula tenuilamellata Hall, Pal. New York, 3, 1859, p. 281, pi. 51, figs. 1 and 2. Aviculopecten tenuilamellatus May nard, Maryland Geol. Surv., Low. Dev., 1913, p. 461, pi. 78, fig. 4. Helderbergian: Albany and Schoharie Counties, New York (New Scotland); Keyser, West Virginia (Keyser). AZYGOGRAPTUS Nicholson. Genotype: A. lapworthi Nicholson. Azygograptus Nicholson. Ann. Mag. Nat. Hist., 4th ser, 16, 1875, p. 269. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266; Nat. Sci., 9, 1896, p. 188. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 513. Elles and Wood, Mon. British Grapt. Pal. Soc., 1902, p. 92. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 256-257. 100 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Azygograptus? simplex Ruedemann. Dawsonia campanulata Ruedemann (not Nicholson, 1873), Bull. New York State Mus., 42, 1901, p. 520. Azygograptus? simplex Ruedemann, Mem. New York State Mus., 11, pt. 2, pp. 258-260, pi. 14, fig. 10, figs. 163-171. Chazyan (Normanskill): Kenwood, Glenmont, Mount Moreno, and Lansingburg, New York. Azygograptus? walcotti Lapworth. Azygograptus? walcotti (Lapworth) Gurley, Jour. Geol., 4, 1896, pp. 69, 92. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 257, 258, fig. 162. Chazyan (Normanskill): Stockport, New York. BAIRDIA ANTICOSTIENSIS Jones. See Krausella anticostiensis. BALANOCRINITES Troost. See Lampterocrinus Roemer. BALANOCRINUS Hall. See Lampterocrinus Roemer. BALTOCERAS Holm. Genotype: Endoceras burchardii Dexitz. Baltoceras Holm, Geol. Mag., dec. 4, 4, 1897, p. 251. Ruedemann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 432. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 517. Baltoceras(?) pusillum Ruedemann. Baltoceras(?) pusillum Ruedemann, Bull. New York State Mus., 90, Pal. 14, 1906, p. 431, pi. 9, fig. 4, 5. Canadian (Beekmantown): Valcour, New York. BARRANDELLA Hall and Clarke. See Clorinda Barrande. BARRANDEOCERAS Hyatt. Genotype: Nautilus natator Billings. Barrandeoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 299. Zittel. Handb. Pal., 2, Munich, 1884, p. 382. Foord, Cat. Foss. Ceph. British Mus., 11, 1891, p. 77. Hyatt, Proc. Amer. Philos. Soc., 32, 1894, p. 450. Miller, N. A. Geol. Pal., 2d App., 1897, p. 771. Whiteaves, Geol. Surv. Canada, Pal. FOBS., 3, pt. 4, 1906, p. 307. Ruedemann, Bull. New York State Mus., 90, Pal. 14, 1906, p. 454. Grabau and Shimer N. A. Index Fossils, 2, 1910, p. 65. Barrandeoceras americanum (D'Orbigny). Lituites convolvans (Hisinger?) Hall, Pal. New York, 1, 1847, p. 53, pi. 13, figs. 2, 2a. Hortholus Americanus D'Orbigny, Prodr. de Pal., 1, 1849, p. 1 (new name for Lituites convolvans Hall). Emmons, Amer. Geology, 1, pt. 2, 1855, p. 146. Lituites Americanus Miller, N. A. Geol. Pal., 1889, p. 442. Barrandeoceras convolvans Hyatt, Proc. Amer. Philos. Soc., 32, 1894, p. 451. Miller, N. A. Geol. Pal., sec. app., 1897, p. 771. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 66. Barrandeoceras subcostulatum Whiteaves, Ottawa Naturalist, 12, 1898, p. 121; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 310, pi. 38. Black River: Watertown, New York (Watertown); Wolfe Island, near Kingston, Canada. BARRANDEOCERAS CONVOLVANS Hyatt. See Barrandeoceras americanum. BARRANDEOCERAS ELRODI Milleri. See Gyroceras elrodi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 101 Barrandeoceras minganense Hyatt. Barrandeoceras minganense Hyatt, Proc. Amer. Phil. Soc. ,32, 1894, p. 451. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 309. Chazyan (Mingan): Mingan Islands, Canada. Barrandeoceras natator (Billings). Nautilus natator Billings, Canadian Nat., 4, No. 6, 1859, p. 406. Phragmoceras natator Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 638, 7 figs. Barrandeoceras natator Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 299 (gen. ref.); Proc. Amer. Phil. Soc., 32, 1894, p. 452. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 308, pi. 39, figs. 1, la, lb. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 66, fig. 1274. Chazyan: Mingan Islands, Canada (Mingan); east shore of Valcour Islands, New York (Valcour). BARRANDEOCERAS SUBCOSTULATUM Whiteaves. See Barrandeoceras americanum. Barrandeoceras vagrans (Billings). Gyroceras (Lituites) vagrans Billings, Geol. Surv. Canada Hep. Progr. for 1853-56, 1857, p. 308. Barrandeoceras vagrans Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 311, pi. 40, figs. l-2a. Black River (Leray): La Petite Chaudiere Rapids, Ottawa River, and Montreal, Canada. BARRANDEOCRINUS Angelin. Genotype: B. septrum Angelin. Barrandeocrinus Angelin, Icon. Grin., 7, 1878, pi. 4, fig. 5, 5a; pi. 5, figs. 6, 6a; pi. 22, figs. 2-4. Zittel, Handb. Pal., 1, 1879, p. 368. Wachsmtith and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, p. 347 (Rev. Pal., pt.3, p. 125); Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 484. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 166, fig. 80. Wachsmuth, Zittel- Eastman Pal., 1, 1900, p. 144. Zittel, Grundzuge Pal., 1, 1910, p. 159. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 195. Cylicocrinus Miller, N. A. Geol. Pal., 1st App., 1892, p. 676; 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 285 (adv. sheets 1892). Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 156. (Genotype: C. canaliculatus Miller.) Barrandeocrinus canaliculatus (Miller). Cylicocrinus canaliculatus Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana (adv. sheets, 1892, p. 31, pi. 5, figs. 13, 14), 1894, p. 285, pi. 5, figs. 13, 14; N. A. Geol. Pal., 1st App., 1892, p. 676, fig. 1220. Barrandeocrinus canaliculatus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 21, 1897, p. 485. Niagaran (Laurel): St. Paul, Indiana. Barrandeocrinus? indianensis (Miller and Gurley). Cylicocrinus(?) indianensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895, p. 31, pi. 4, figs. 20-22. Miller, N. A. Geol. Pal., 2d App., 1897, p. 741, fig. 1331. Niagaran (Laurel): St. Paul, Indiana. BARRANDIA? MCCOYI Walcott. See Dolichometopus mccoyi. 102 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BARYPHYLLUM Edwards and Haime. Genotype: B.verneuileanum Edwards and Haime. Baryphyllum Edwards and Haime, Mon. d. Polyp. Foss. d. Ten*. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, pp. 165, 352. Pictet, Traite" de Pal., 4, 1857, p. 453. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 355. Ludwig, Palseon- tographica, 14, 1865, p. 143, pi. 31, figs. 11, lla. Dybowski, Archivf. Natur. Liv-, Ehst-undKurl., 5, 1873, p. 334. Zittel, Handb. Pal., 1, Munich, 1879, p. 227.-,Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 372. Miller, N. A. Geol. Pal., 1889, p. 174. Sherzer, Amer. Geol., 7, 1891, pp. 278-283. Baryphyllum fungulus White. Baryphyllum fungulus White, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 29. Niagaran (Waldron) Waldron. Indiana. BASILICUS Salter. Genotype: Asaphus tyrannus Murchison. Basilicus Salter, Mem. Geol. Surv. United Kingdom, dec. 2, 1849, pi. 5. McCoy, Ann. Mag. Nat. Hist. (2), 4, 1849, p. 399; Brit. Pal. Rocks and Fossils, 1854, p. 169. Salter, Mon. Brit. Tril., Pal. Soc., 1866, p. 146. Zittel, Handb. Pal., 2, 1885, p. 608. Koken, Die Leitfossilien, Leipzig, 1896, p. 26. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 8th ser., 6, 1898, p. 29; 12, No. 8, 1901, p. 1; 14, No. 10, 1904, pp. 3-20. Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 62; Trans, and Proc. Roy. Soc. Canada, 5, 3d eer., sec. 4, 1912, p. 115; Zittel-Eastman Textb. Pal., 1913, p. 719. Basilicus barrandi (Hall). Asaphus Barrandi Hall, Geol. Lake Superior Land Dist., Foster and Whitney's Rep., 1851, p. 210, pi. 27, figs, la-d; pi. 28; Rep. Geol. Surv. Wisconsin, 1862, p. 41, fig. 4. Ogygia barrandii Whitfield, Amer. Mus. Nat. Hist., 2, pt. 1, 1898, p. 70. Asaphus Romingeri Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 96; mus. ed., 1879, p. 96. Ptychopyge romingeri Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 709. Basilicus romingeri Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 49, pi. 15, figs. 9, 10; pi. 16, figs. 1-4. Asaphus Wisconsensis Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 97; mus. ed., 1879, p. 97. Ptychopyge ulrichi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 709, figs. 12, 13. Asaphus ulrichi Miller, N. A. Geol. Pal., 2d App., 1897, p. 786 (gen. ref.). Basilicus barrandi Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 42; Bull. Mus. Comp. Zool., 58, 1914, p. 261, pi. 1, figs. 4, 5; pi. 2, figs. 1, 7. Black River: Platteville, etc., Wisconsin; Russia, Herkimer County, New York; Cannon Falls and Faribault, Minnesota; Ottawa, Ontario* St. Joseph's Island, Lake Huron. BASILICUS CANADENSIS Chapman. See Ogygites canadensis. Basilicus huttoni (Billings). Asaphus Huttoni Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 271, fig. 256. Ptychopyge huttoni Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710. Asaphus morrisii Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 272, fig. 257. Vogdes, Bull. U. S. Geol. Surv., 63, 1890, pp. 93, 94. Chazyan (Quebec N, P): Tablehead and four miles northeast Portland Creek, Newfoundland. Basilicus marginalis (Hall). Asaphus marginalis Hall, Pal. New York, 1, 1847, p. 24, pi. 4 (bis.), fig. 15. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 235, pi. 3, fig. 16. Raymond, Ann. Carnegie Mus., 3, 1905, p. 339, pi. 10, figs. 17-20; pi. 11. Grabau and Shimer, N. A. Index Foss., 2, 1910, p. 291, fig. 1599. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 103 Basilicus marginalis Continued. Basilicus marginalis Raymond, 7th Rep. State Geol. Vermont, 1910, p. 220, pi. 32, figs. 17-20; pi. 34, figs. 8-10; pi. 37, fig. 6; pi. 39, figs. 1-2; Ann. Carnegie Mus., 7, No. 1, 1910, p. 62, fig. 1; pi. 17, fig. 6; pi. 19, figs. 1, 2. Asaphus alpha Raymond, Ann. Carnegie Mus., 3, 1905, p. 342, pi. 12, fig. 9. Asaphus gamma Raymond, Ann. Carnegie Mus., 3, 1905, p. 342, pi. 12, fig. 10. Chazyan (Day Point, Crown Point): Chazy, Valcour Island, etc., New York. Observation. See also Gerasaphes ulrichana Ruedemann (not Clarke) for a possible synonym. Basilicus? vetustus (Hall). Ogygia? vetusta Hall, Pal. New York, 1, 1847, p. 227, pi. 60, fig. 1. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 216, fig. 72. Asaphus vetustus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72 (gen. ref.). Black River (Lowville): Mohawk Valley, New York. BATHYCCELIA Foerste. See Pianodema Foerste. BATHYTJRELLUS Billings. Genotype: Bathyurellus abruptus Billings. Bathyurellus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 262, 263. Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 94, footnote; mus. ed., 1879. Dames, Richthofen's China, Berlin, 4, 1883, p. 5. Zittel, Handb. Pal., 2, 1885, p. 602. Miller, N. A. Geol. Pal., 1889, p. 533. Raymond, Ann. Carnegie Mus., 3, No. 2, 1905, p. 337; Zittel-Eastman Textb. Pal., 1913, p. 718. Bathyurellus abruptus Billings. Bathyurellus abruptus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 263, fig. 247 (?250). Canadian (Quebec F, G, H): Port aux Choix and Keppel Island, Newfoundland. Bathyurellus brevispinus Raymond. Bathyurellus brevispinus Raymond, Ann. Carnegie Mus., 3, 1905, p. 337, pi. 10, figs. 13-15; 7th Rep. State Geol. Vermont, 1910, p. 218, pi. 32, figs. 13-15. Chazyan: Three miles east of Chazy, New York (Day Point); Mingan Islands, Canada (Mingan). Bathyurellus expansus Billings. Bathyurellus expansus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 318, fig. 306a, b. Canadian (Beekmantown): Stanbridge, Quebec. Bathyurellus formosus Billings. Bathyurellus formosus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 206, fig. 250. Chazyan (Quebec P): Cow Head, Newfoundland. Observation. Compare Bathyurellus brevispinus Raymond. Bathyurellus fraternus Billings. Bathyurellus fraternus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 267, fig. 251, a, b. Chazyan: Cow Head, Newfoundland (Quebec P); Mingan Islands, Canada (Mingan). Bathyurellus litoreus Billings. Bathyurellus litoreus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 320. Ozarkian? (Levis-erratic): Point Levis, Quebec. 104 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bathyurellus marginatus Billings. Bathyurellus marginatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 264, fig. 248 (7249). Canadian (Quebec F, G, H): Keppel Island, Portaux Choix, and Table Head, Newfoundland. Bathyurellus minor Raymond. Bathyurellus minor Raymond, Annals Carnegie Mus., 3, 1905, p. 338, pi. 10, fig. 16; 7th Rep. State Geol. Vermont, 1910, p. 219, pi. 32, fig. 16. Bathyurellus validus Raymond, Bull. Amer. Pal., 3, No. 14, 1902, p. 301. Chazyan (Crown Point): Crown Point, Valcour Island, New York. Bathyurellus nitfdus Billings. Bathyurellus nitidus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 265, fig. 249. Miller, N. A. Geol. Pal., 1889, p. 533, fig. 971. Chazyan (Quebec P): Cow Head, Newfoundland. Bathyurellus rams Billings. Bathyurellus rarus Billings, Pal. Foss., 1, Geol. Surv., Canada, 1865, p. 320. Ozarkian? (Levis-erratic): Point Levis, Quebec. Bathyurellus ralidus Billings. Bathyurellus validus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 268, fig. 252. Chazyan (Quebec L): Point Rich, Newfoundland. BATHYURUS Billings. Genotype: Asaphus extans Hall. Bathyurus Billings, Canadian Nat. Geol., 4, 1859, p. 364; 5, 1860, p. 317; Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 408, 409. Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 94; mus. ed., 1879. Kayser, Beitr. Geol. and Pal. Argentinischen Republik, Palaeontographica Suppl., 3, 1876, p. 10. Dames, Richthofen's China, 4, 1883, p. 4. Zittel, Handb. Pal., 2, 1885, p. 602. Miller, N. A. Geol. Pal., 1889, p. 533. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 288. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 718; Bull. Victoria Mem. Mus., 1, 1913, p. 51. Bathyurus acutus Raymond. Bathyurus acutus Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 56, pi. 7. fig. 4. Stones River (Pamelia): Westboro, near Ottawa, Ontario. Bathyurus amplimarginatus Billings. Bathyurus amplimarginatus Billings, Canadian Nat. Geol., 4, 1859, p. 365, fig. 12a, b; Geol. Canada, Geol. Surv. Canada, 1863, p. 122, fig. 41; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 353, fig. 341a. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 288. Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 54. Bathyurus minganensis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 353. Canadian: Mingan Islands, Canada (Romaine); Rockland, Ontario, (Beekman- town). Bathyurus angelini Billings. Bathyrus Angelini Billings, Canadian Nat. Geol., 4, 1859, p. 467, fig. 37; Geol. Canada, Geol. Surv. Canada, 1863, p. 133, fig. 68. Chapman, Canadian Jour., n. s., 8, 1863, p. 29, fig: 142; p. 195, fig. 166; Expos. Min. Geol. Canada, 1864, p. 137, fig. 142; p. 167, fig. 166. Raymond, Ann. Carnegie Mus., 3, 1905, No. 2, p. 335, fig. 1, pi. 10, figs. 11, 12; 7th Rep. State Geol. Vermont, 1910, pi. 32, figs. 11, 12; Bull. Victoria Mem. Mus., 1, 1913, p. 55, pi. 7, fig. 5. Canadian: Grenville (Beekmantown), Mingan Islands (Romaine), etc., Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 105 Bathyurus arcuatiis Billings. Bathyurus arcuatiis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 205, figs. 189, 190. Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57. Canadian (Beekmantown): Near St. Antoine, above Quebec, Canada. BATHYURUS ARMATUS Billings. See Plethopeltis armatus. BATHYURUS ARMATUS Walcott. See Plethopeltis saratogensis. BATHYURUS BITUBERCULATUS Billings. See Lloydia bituberculatus. BATHYURUS BREVICEPS Billings. See Leiostegium breviceps. BATHYURUS CAPAX Billings. See Platycolptis capax. BATHYURUS CAUDATUS Billings. See Goniurus caudatus. BATHYURUS CONGENERIS Walcott. See Holasaphus congeneris. BATHYURUS CONICUS Billings. See Hystricurus conicus. BATHYURUS CORDAT Billings. See Hystricurus oordai. BATHYURUS CROTALIFRONS Dwight. See Hystricunis crotalifrons. BATHYURUS CYBELE Billings. See Petigunis cybele. Bathyurus?? darwinf Kayser. Bathyunis? Darwinii Kayser, Beitr. Geol. Pal. Argentinischen Republik, Palseon- tographiea Suppl., 3, 1876, p. 12, pi. 2, fig. 6. Ordovician: Quebrada de Juan Pobre, Argentina. BATHYURUS DUBIUS Billings. See Platycolpus dubius. BATHYURUS ELLIPTICUS Cleland. See Petigunis ellipticus. Bathyurus extans (Hall). Asaphus? extans Hall, Pal. New York, 1, 1847, p. 228, pi. 60, figs. 2, 2a-c; 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 182, pi. 3, fig. 1 (doc. ed., p. 174). Emmons, Amer. Geology 1, pt. 2, 1855, pi. 15, figs. 8, 11. Asaphus? nodostriatus Hall, Pal. New York, 1, 1847, p. 248, pi. 61, figs, la, b. Bathyurus extans Billings, Canadian Nat. Geol., 4, 1859, p. 364; Geol. Canada, Geol. Surv. Canada, 1863, p. 153, fig. 114. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 722, fig. 37. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 288, fig. 1594. Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 46, pi. 15, figs. 7, 8; pi. 16, fig. 5; Bull. Victoria Mem. Mus., 1, 1913, p. 52. Black River: Mohawk Valley, near Watertown, etc., New York; Ottawa and Mingan Islands, Canada; Minnesota, Wisconsin, Kentucky. Bathyurus glandicephalus Whitfield. Bathyurus (Bathyurellus) glandicephalus Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 38, pi. 2, figs. 9-12. Bathyurus glandicephalus Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 55. Canadian (Beekmantown) : Shoreham, Vermont; Champlain Valley. Bathyurus ingalli Raymond. Bathyurus ingalli Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57, pi. 7, fig. 7. Trenton (Curdsville) : Two miles north Kirkfield, Belleville, and near Ottawa, Ontario. 106 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bathyurus Johnston! Raymond. Bathyurus johnstoni Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 53, pi. 7, figs. 2, 3. Black River (Lowville): Garden, Ottawa, and west of Mechanicsville, Ontario. Bathyurus? lajensis Kayser. Bathyurus? Lajensis Kayser, Beitr. Geol. and Pal. Argentinischen Republik, Palaeontographical Suppl. 3, 1876, p. 12, pi. 2, fig. 5. Ordovician: Quebrada de la Laja, Argentina. BATHYURUS LEVIS Cleland. See Symphysurus convexus. Bathyurus longispinus Walcott. Bathyurus longispinus Walcott, 28th Ann. Rep. New York State Mus., 1879, p. 94. Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 47, pi. 16, figs. 12-14; Zittel-Eastman Textb. Pal., 1913, p. 718, fig. 1381; Bull. VictoriaMem. Mus., 1, 1913, p. 54. Ptychopyge jerseyensis Weller, Pal. New Jersey, 3, 1903, p. 193, pi. 14, fig. 16. Black River: Newport, New York; Jacksonburg, New Jersey. BATHYURUS MINGANENSIS Billings. See Bathyurus amplimarginatus. BATHYURUS NERO Billings. See Petigurus nero. BATHYURUS OBLONGUS Billings. See Lloydia oblongus. Bathyurus? orbignyanus Kayser. Bathyurus? Orbignyanus Kayser, Beitr. Geol. and Pal. Argentinischen Republik, Palseontographical Suppl. 3, 1876, p. 12, pi. 2, figs. 7, 8. Ordovician: Quebrada de Juan Pobre, Argentina. Bathyurus perkinsi Whitfield. Bathyurus perkinsi Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 183, pi. 5, figs. 7, 8. Seely, 7th Rep. State Geol. Vermont, 1910, pi. 55, figs. 7, 8. Canadian (Beekmantown) : Mouth of Otter Creek, Vermont. Bathyurus perplexus Billings. Bathyurus perplexus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 364, fig. 350. Raymond, Bull. VictoriaMem. Mus., 1, 1913, p. 52. Middle Ordovician? Bonne Bay, Newfoundland. Observation. Probably the same as B. extans. BATHYURUS PERSPICATOR Billings. See Goniurus perspicator. Bathyurus pogonipensis Hall and Whitfield. Bathyurus Pogonipensis Hall and Whitfield, U. S. Geol. Expl. 40th Parl., 4, 1877, p. 243, pi. 1, figs. 33, 34. Lower Pogonip: West side Pogonip Mountain, White Pine District, Nevada. Holotype.Cat. No. 24655, U.S.N.M. BATHYURUS QUADRATUS Billings. See Leiostegium quadratus. BATHYURUS SAFFORDI Billings. See Lloydia saffordi. Bathyurus schucherti Clarke. Bathyurus schucherti Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 724, figs. 41, 42. Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 58. Black River (Platteville) : Minneapolis, Minnesota. Cotype.Cat. No. 43052, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 107 BATHYURUS SEELYI Whitfield. See Bolbocephalus seelyi and Hystricurus cordai. Bathyurus(?) simillimus Walcott. Bathyurus? simillimus Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 93, pi. 12, fig. 11. Upper Pogonip: White Mountain, Eureka District, Nevada. Holotype: Cat. No. 24653, U.S.N.M. BATHYURUS SMITHI Billings. See Haploconus smithi. BATHYURUS SOLITARIUS Billings. See Lloydia solitarius. Bathyurus spiniger (Hall). Acidaspis spiniger Hall, Pal. New York, 1, 1847, p. 241, pi. 64, fig. 5. Bathyurus spiniger Clarke, Geol. Minnesota, 3, pt. 2, 1884, p. 723, figs. 38-40. Raymond, Bull. Amer. Pal., 3, 1902, pi. 19, figs. 1-3; Ann. Carnegie Mus., 7, 1910, p. 48, pi. 15, figs. 4-6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 288. Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57. Black River: Mohawk Valley, New York; Montreal, Quebec; Illinois, Kentucky, Missouri, Iowa. Plesiotype.C&t. Nos. 41932, 41933, U. S.N.M. BATHYURUS STONEMANII Vogdes. See Prcetus stonemani. BATHYURUS STRENUUS Billings. See Lloydia Rtrenuus. Bathyurus superbus Raymond. Bathyurus superbus Raymond, Ottawa Nat., 24, 1910, p. 129, pi. 2, figs. 1-3; Bull. Victoria Mem. Mus., 1, 1913, p. 54. Black River: Near Ottawa, Ontario. Bathyurus ? taurifrons Dwight. Bathyurus taurifrons Dwight, Amer. Jour. Sci., 3d ser., 27, 1884, p. 252, pi. 7, figs. 1, la-3. Canadian (Beekmantown): Rochdale County, New York. Bathyurus ? timon Billings. Bathyurus Timon Billings, Pal. Foss., 1, Geol. Surv. Canada, p. 261, fig. 244. Canadian (Quebec-G, H): Port aux Choix, Newfoundland. BATHYURUS TUBERCULATUS W T alcott. See Hystricurus tuberculatus. Bathyurus ? vetulus Billings. Bathyurus vetulus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 365. Middle Ordovician: East arm of Bonne Bay, Newfoundland. BATOSTOMA ? Ulrich. Genotype: Monticulipora (Heterotrypa) implicata Nicholson. Batostoma Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154. Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 17. Miller, N. A. Geol. Pal., 1889, p. 294. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 379, 459; Geol. Minnesota, 3, 1893, p. 288; Zittel's Textb. Pal. (Engl. ed.), 1897, p. 275. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 35. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 136. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 740. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 272; Zittel-Eastman Textb. Pal., 1913, p. 338. 108 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Batostoina canadense (Foord). Amplexopora Canadensis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 17, pi. 4, figs. 2-2d. Batostoma Canadensis Ulrich, Geol. Minnesota, 3, 1893, p. 317. Mohawkian: St. Joseph Island, Lake Huron (Black Paver); Joliette, Quebec (?Trenton). Batostoma? decipiens Ulrich. Batostoma? decipiens Ulrich, Geol. Minnesota, 3, 1893, p. 298, pi. 27, figs. 16-19. Black River (Decorah): Minneapolis, Minnesota. Holotype.C&t. No. 43511, U.S.N.M. Batostoina fertile Ulrich. Batostoma fertilis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Siirv. Minnesota, 1886, p. 92; Geol. Minnesota, 3, 1893, p. 290, pi. 25, figs. 1-11; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 275, fig. 459A. Sardeson, Jour. Geol., 9, 1901, p. 12. Grabati and Shimer, N. A. Index Fossils, 1, 1907, p. 136, fig. 188k, 1901. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 274, 275, fig. 163. Black River (Decorah): Minneapolis, Minnesota, and vicinity. Ordovician (Echinospherites limestone) : Near Reval, Esthonia, Russia. Cotypes.-V&t. No. 43505, U.S.N.M. Batostoma fertile circulare Ulrich. Batostoma fertile var. circulare Ulrich, Geol. Minnesota, 3, 1893, p. 291, pi. 25, figs. 8, 9 Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 275, 276, fig. 164; Zittel-Eastman Textb. Pal., 1913, p. 338, fig. 492b. Batostoma fertile Ulrich, Zittel's Textb. Pal. (Eng. ed.), 1896, p. 275, fig. 459B. Black River (Decorah): Minneapolis, Minnesota, and vicinity. Ordovician (Echinosphserites limestone): Near Reval, Esthonia, Russia. Holotype.Cat. No. 43506, U.S.N.M. Batostoma humile Ulrich. Batostoma humile Ulrich, Geol. Minnesota, 3, 1893, p. 294, pi. 25, figs. 29-36. Trenton (Prosser): St. Paul and Cannon Falls, Minnesota; Decorah, Iowa. Cotypes.G&t. No. 43509, U.S.N.M. BATOSTOMA IMPERFECTUM Ulrich. See Hemiphragma imperfectum. Batostoma implicatum (Nicholson). Chaetetes implicata Ulrich, Cat.Foss. Cincinnati Group, 1880, p. 12 (not defined). Monticulipora (Heterotrypa) implicata Nicholson, Genus Monticulipora, 1881, p. 147, pi. 2, figs. 7, 7e. Monticulipora implicatum J. F. James, Jour. Cincinnati Soc. Hist., 16, 1894, p. 198 Batostoma implicatum Ulrich, ibid., 5, 1882, p. 256; 7, 1883, p. 83. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 178. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 48, pi. 2, fig. 6. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 774, pi. 7, fig. 7; pi. 8, fig. 2. Alecto nexilis James, Intr. Cat. Foss. Cincinnati Group, 1875, p. 3. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 10. Ceramopora? irregularis James, Paleontologist, No. 1, 1878, p. 5 (part). Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 26. Eden: Cincinnati, Ohio, and vicinity. BATOSTOMA IRRASA Ulrich. See Hemiphragma irrasum. Batostoma jamesi (Nicholson). Chaetetes Jamesi Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 506, pi. 29, figs. 10, lOb; Pal. Ohio, 2, 1875, p. 200, pi. 21, figs. 11, lla; Ann Mag. Nat. Hist., 4th. ser., 18, 1876, p. 89. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 109 Batostoma jamesi Continued. Monticulipora Jamesi Nicholson, Ann. Mag. Nat. Hist., 5th ser., 6, 1880, p. 415, fig. 3A, B, fig. 4. (VanCleve) Hall, 12th Rep. Indiana Geol. Nat. Hist., 1883, p. 248, pi. 11, fig. 8. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 176. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 421, figs. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 197. Monticulipora (Heterotrypa) Jamesi Nicholson, Genus Monticulipora, 1881, p. 143, figs. 25, 26. Batostoma jamesi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 256; 6, 1883, p. 83. Miller, N. A. Geol. Pal., 1889, p. 294, fig. 457. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 775, pi. 7, figs. 8, 8a; pi. 8, fig. 1, pi. 27, figs. 6, 6a. * Ceramopora? irregularis James, Paleontologist, No. 1, 1878, p. 5 (part). Bassler, Proc. U. S. Nat. Mtis., 30, 1906, p. 26. Eridotrypa vevayensis Cumings, Amer. Geol., 28, 1901, p. 376, pi. 35, figs. 7, 8. Eden: Cincinnati, Ohio, and vicinity. Observation. The type specimen of Eridotrypa vevayensis was found to be an example of Batostoma jamesi in which the mesopores were fewer than usual, thus making the zooecia more angular. Ceramopora irregularis James was based on incrusting forms of both Batostoma jamesi and B. implicatum. Batostoma libana (Safford). Stenopora libana Safford, Geol. Tennessee, 1869, p. 285. Stones River (Lebanon): Lebanon, Tennessee. Observation. Although not sufficiently described for recognition, this species is known to be a characteristic fossil of the Lebanon limestone. Batostoma magnopora Ulrich. Batostoma magnopora Ulrich, Geol. Minnesota, 3, 1893, p. 291, pi. 25, figs. 12-15. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 272-274, figs. 161, 162. Black River (Decorah): Minneapolis, Minnesota, and vicinity. Ordovician (Wassalem): Uxnorm, Esthonia, Russia. Cotypes and plesiotype.Ca,t. Nos. 43508, 57377, U.S.N.M. Batostoma manitobense Ulrich. Batostoma Manitobense Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 33; pi. 9, rigs. 3-3c. Whiteaves, Pal. Foss., 3, 1895, p. 117. Richmond (Stony Mountain): Stony Mountain, Manitoba; Wyoming. Sections of cotypes.C&t. No. 43250, U.S.N.M. Batostoma maysvillense Nickles. Batostoma maysvillensis Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 51, pi. 2, figs. 13, 14. Maysville (Mount Hope) : Near Maysville, Kentucky. Batostoma minnesotense Ulrich. Amplexopora superba Ulrich (not Foord), 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1881, p. 92. Batostoma minnesotense Ulrich, Geol. Minnesota, 3, 1893, p. 297, pi. 26, figs. 38-40, pi. 27, figs. 9-15. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588, fig. 173. Black River (Decorah): Minneapolis, St. Paul, etc., Minnesota. Cotypes. Cat. No. 43507, U.S.N.M. Batostoma montuosum Ulrich. Batostoma montuosum Ulrich, Geol. Minnesota, 3, 1893, p. 293, pi. 25, figs. 26-28. Black River (Decorah): Cannon Falls, Minnesota. Holotype.C&t, No. 45312, U.S.N.M. 110 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BATOSTOMA OTTAWABNSE Foord. See Hemiphragma ottawaense. Batostoma prosseri Cumings and Galloway. Batostoma prosseri Cumings and Galloway, Proc. Indiana Acad. Sci., 1912, p. 151, pi. 5, figs. 1-lc; pi. 6, figs. 1-ld; pi. 7, figs. 2-2c. Richmond (Upper Waynesville and Lower Liberty) : Weisburg, Indiana. Batostoma? rugosum (Whitfield). Fistulipora rugosa Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1879, 1880, p. 60; Geol. Surv. Wisconsin, 4, 1882, p. 255, pi. 11, figs. 20, 21. Batostoma rugosum Miller, N. A. Geol. Pal., 1889, p. 294. Richmond (Maquoketa): Delafield, Wisconsin. . Batostoma sevieri Bassler. Batostoma sevieri Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 21, figs. 1-3. Chazyan (Ottosee): Speer Ferry, Virginia; Knoxville, Tennessee, etc. Cotypes.C&t. No. 56630, U.S.N.M. Batostoma superbum (Foord). Amplexopora superba Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 16, pi. 4, figs. 1-lc. Batostoma superbum Ulrich, Geol. Minnesota, 3, 1893, p. 297. Trenton: Montreal, Quebec. BATOSTOMA (HEMIPHRAGMA) TENUIMURALE Grabau and Shimer. See Hemiphragma tenuimurale. BATOSTOMA VARIABLE (part) Ulrich. See Batostoma varians. Batostoma variable Ulrich. Batostoma variable Ulrich (part), Geol. Surv. Illinois, 8, 1890, p. 460, pi. 35, fig. 5; pi. 36, fig. 1 (not pi. 35, figs. 4b, c=B. varians). Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 18, pi. 7, figs. 9, 10. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 777, pi. 8, fig. 4; pi. 26, fig. 13. Cumings and Galloway, Proc. Indiana Acad. Sci., 1912, p. 150, pi. 2, figs. 1-lc; pi. 3, figs. 1-lc; pi. 4, figs. 1, la, pi. 7, figs. 1-lc. Richmond (Whitewater): Versailles, Richmond, etc., Indiana; Ohio. Cotypes and plesiotype.Ca.t. Nos. 43820, 44777, U.S.N.M. Batostoma varians (James). Chsetetes varians James, Paleontologist, No. 1, 1878, p. 2. Monticulipora (Chsetetes) varians James, Paleontologist, No. 5, 1881, p. 36. Monticulipora varians James and James, Jour. Cincinnati Soc. Nat. Hist.,. 10, 1888, p. 177, pi. 2, figs. 4a, b. J. F. James, ibid., 16, 1894, p. 199. Batostoma variabile (part) Ulrich, Geol. Surv. Illinois, 8, 1890, p. 460, pi. 35, figs. 4b-c, (Not 4, 4a, 5, or pi. xxxvi, pt. 1=B. variabile). J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 200. Batostoma varians Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 179. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 57, pi. 3, figs. 8, 9. Bassler Proc. U. S. Nat. Mus., 30, 1906, p. 18. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 778, pi. 7, fig. 9; pi. 8, figs. 3, 3b; pi. 26, fig. 14. Cumings and Galloway, Proc. Indiana Acad. Sci., 1912, p. 148, pi. 1, figs. 1-le; pi. 7, figs. 3, 3a. Richmond: Blanchester, Clarksville, etc., Ohio; Richmond, Versailles, etc., Indiana ( Arnheim-Liberty) ; Savannah, Illinois, and Delafield, Wisconsin (Maquoketa). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. Ill Batostoiua varium Ulrich. Batostoma varium Ulrich, Geol. Minnesota, 3, 1893, p. 292, pi. 25, figs. 16-25. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588, fig. 175 (not fig. 176=Eridotrypa mutabilis). Black River (Decorah): Minneapolis and St. Paul, Minnesota. Chazyan (Mingan): Mingan Islands, Canada. Cotypes.Cat. No. 43510, U.S.N.M. BATOSTOMA (HEMIPHRAGMA) WHITFIELDI Grabau and Shimer. See Hemiphragma whitfielcli. Batostoma winchelli (Ulrich). Amplexopora winchelli Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 91. Batostoma winchelli Ulrich, Geol. Minnesota, 3, 1893, 295, pi. 26, figs. 33-37, pi. 27, figs. 1-6. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588, fig. 174. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 136, fig. 188j, 190j. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 278, 279, fig. 166. Black River (Decorah): Minneapolis, Minnesota, and vicinity; Lake Nipissing, Ontario. Ordovician (Wesenberg): Wesenberg, Esthonia, Russia. Cotypes.C&t. No. 43815, U.S.N.M. Batostoma winchelli nodosum Ulrich. Batostoma winchelli var. nodosa Ulrich, Geol. Minnesota, 3, 1893, p. 295, pi. 26, fig. 35. Black River (Decorah): Minneapolis and St. Paul, Minnesota. Batostoma winchelli spinulosum Ulrich. Batostoma winchelli var. spinulosum Ulrich, Geol. Minnesota, 3, 1893, p. 296, pi. 27, figs. 7, 8; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 275, fig. 459C. Bassler, Bull. U. S. Nat. Mus. 77, 1911, pp. 279-280, figs. 167, 168. Black River (Decorah): Minneapolis and St. Paul, Minnesota. Ordovician (Wassalem): Uxnorm, Esthonia, Russia. Plesiotype.Cat. No. 57383 U.S.N.M. BATOSTOMELLA Ulrich. Genotype: B. spinulosa Ulrich. Batostomella Ulrich (in part), Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 141, 154. Miller, N. A. Geol. Pal., 1889, p. 294. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 375, 432. Rominger, Amer. Geol., 6, 1890, p. 119. Whidborne, Devon. Fauna England, Pal. Soc., 2, 1895, pt. 4, p. 187. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 277. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 32, 180. Grabau, Bull. New York State Mus., 45, 1901, p. 164; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 164. Condra, Nebraska Geol. Surv., 2, pt. 1, 1903, p. 38. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 28. Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 133. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 335. Geinitzella Waagen and Wentzel, Pal. Indica, ser., 13, 1886, pp. 875, 880. Zittel, Textb. Pal. (Engl. ed.), 1896, p. 105. BATOSTOMELLA (part) Ulrich. See Eridotrypa Ulrich. BATOSTOMELLA ANNULIFERA Ulrich. See Lioclemella annulifera. BATOSTOMELLA? ASPERA Nickles and Bassler. See Acanthoclema asperum. BATOSTOMELLA GRACILIS Ulrich. See Bythopora gracilis. 112 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Batostomella granulifera (Hall). Trematopora granulifera Hall, Pal. New York, 2, 1852, p. 154, pi. 40 A, figs. 9a-e; *28th Ann. Rep. New York State Mus. (doc. ed.), 1876, pi. 11, figs. 6, 7; (mus. ed.), 1879, p. 112, pi. 11, figs. 6, 7; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 233, pi. 10, figs. 6, 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1200, figs. Rhombopora granulifera Ulrich, Geol. Surv. Illinois, 8, 1890, p. 647. Batostomella granulifera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 180 (gen. ref.). Grabau, Bull. New York State Mus., 45, 1901, p. 164, fig. 61. Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 28, 29, pi. 13, figs. 1-5; pi. 24, figs. 10, 11; pi. 25, figs. 11, 12. *Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 133. Clinton: Lockport, Rochester, Middleport, etc., New York; Grimsby, Hamilton, and Thorold, Ontario (Rochester); Osgood, Indiana (Osgood). Niagaran (Waldron): Waldron, Indiana. Plesiotypes.Cat. No. 35517, U.S.N.M. Observation. The citations preceded by the (*) refer to the Waldron form, which may be specifically distinct. BATOSTOMELLA GRANULIFERA Ulrich. See Homotrypella granulifera. Batostomella interporosa Ulrich and Bassler. Batostomella interporosa Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 270, pi. 45, figs. 1, 2; pi. 48, fig. 5. Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland. Cotypes. Cat. No. 53761, U.S.N.M. BATOSTOMELLA SIMULATRIX Ulrich. See Eridotrypa simulatrix. BATTUS PISIFORMIS Dalman. See Agnostus pisiformis. BATTUS PUSILLUS Sars. See Shumardia pusilla. BATTUS TUBERCULATUS Kloeden. See Beyrichia tuberculata. BEATRICEA Billings. Genotype: B. nodulosa Billings. Beatricea Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6, 1857, p. 343; Canadian Jour., n. s., 3, 1858, p. 331; Canadian Nat. Geol., n. s., 2, 1865, p. 405. Hyatt, Amer. Jour. Sci. Arts, 2d. ser., 39, 1865, p. 261-266. Linney, Geol. Surv. Kentucky, Notes on Rocks Central Kentucky, 1883, p. 14. Nicholson, Mon. British Strom., Pal. Soc., 1886, pp. 9, 86. James, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 245. Miller, N. A. Geol. Pal., 1889, p. 155. Grant, Jour, and Proc. Hamilton Assoc ., 6, 1890, p. 122. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 94. Grabau and Shimer, N. A. Index Foss., 1, 1906, p. 46. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 699. Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910, p. 37. Beatricea nodulifera Foerste. Beatricea nodulifera Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 299, pi. 7, fig. 13; pi. 8, fig. 5. Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910, p. 47, pi. 25, fig. 10. Richmond (Liberty) : Near Sulphur Spring, three miles southeast of Lebanon, and Bardstown, Kentucky. Beatricea nodulifera intermedia Foerste. Beatricea nodulifera intermedia Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 300, pi. 8, figs. 4a-c. Parks, Univ: Toronto Studies, Geol. Ser., No. 7, 1910, p. 47, pi. 25, fig. 9. Richmond (Liberty): Marion County, Kentucky. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 113 Beatricea nodulosa Billings. Beatricea nodulosa Billings, Gcol. Surv. Canada, Rep. Progr. for 1853-6, 1857, p. 344; Canadian Jour., n. s., 3, 1858, p. 332. Hyatt, Proc. Boston Soc. Nat. Hist., 10, 1865, p. 19; Amer. Jour. Sci. and Arts, 2d ser., 39, 1865, pp. 262, 266. Billings, Cat. Sil. FOBS., Anticosti, Geol. Surv. Canada, 1866, p. 8 (loc. ref.) Shaler, Amer. Nat., 11, 1877, p. 628. Nicholson, Mon. British Strom., pt. 1, Pal. Soc., 1886, p. 87-89; pi. 8, figs. 1-8. James, Jour. Cin- cinnati Soc. Nat. Hist., 9, 1886, p. 245; 15, pt. 3, 1892, p. 95. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 114 (loc. occ.); Canadian Rec. Sci., 7, 1897, p. 132. Grabau and Shimer, N. A. Index Foss., 1, 1906, p. 47, fig. 74. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 700, pi. 1, figs, la-b. Foerste, Bull. Sci. Lab. DenisonUniv., 14, 1909, p! 300. Parks, Univ. Toronto Studies, Geol. Ser.. No. 7, 1910, p. 45, pi. 25, figs. 2-5, 7-8. Richmond: Wreck Point, Salmon River, etc., Anticosti; Stony Mountain, Mani- toba; Ohio; Indiana; Kentucky. BEATRICEA SULCATA Hyatt. See Beatricea undulata. Beatricea undulata Billings. Beatricea undulata Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 344; Canadian Jour., n. s., 3, 1858, p. 332; Canadian Nat, Geol., n. s., 2, 1865, p. 405, figs. 1, 2. Hyatt, Amer. Jour. Sci. and Arts, 2d ser., 39, 1865, pp. 261, 266. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 8, 34 (loc. ref.). Shaler, Amer. Nat., 11, 1877, p. 628. Nicholson, Mon. Brit. Strom., Pal. Soc., 1886, p. 89. James, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 245; 15, pt. 3, 1892, p. 95. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 114 (loc. occ.); Canadian Rec. Sci., 7, 1897, p. 133. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 47. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 701, pi. 1, fig. 1. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 298, pi. 8, fig. 3. Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910, p. 43, pi. 25, figs. 1, 6, 7. Beatricea sulcata Hyatt, Proc. Boston Soc. Nat. Hist., 10, 1865, p. 19 (error for undulata). Richmond: Cape James, Table Head, etc., Anticosti; Snake Island, Lake St. John, Quebec; Rabbit and Club Islands, Lake Huron; Stony Mountain, Man- itoba; Marion, Nelson, Madison, and Bullitt Counties, Kentucky; Ohio and Indiana. Beatricea undulata cylindrica Foerste. Beatricea undulata-cylindrica Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 298, pi. 9, fig. 7. Parks, Univ.. Toronto Studies, Geol. Ser., No. 7, 1910, p. 44. Richmond: Four miles north Richmond, and Marion and Nelson counties, Ken- tucky (Liberty); Elkhorn Creek, south of Richmond, Indiana (Elkhorn). BELEMNOCYSTIS Bather. See Belemnocystites Miller and Gurley. BELEMNOCYSTITES Miller and Gurley. Genotype: B. wetherbyi Miller and Gurley. Belemnocystites Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 8. Miller, N. A. Geol. Pal., 2d App., 1897, p. 739. Belemnocystis Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 51. 84243 Hull. 1)2 15 8 114 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Belemnocystites wetherbyi Miller and Gurley. Belemnocystites wetherbyi Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 9, pi. 1, figs. 4-6. Miller, N. A. Geol. Pal., 2d App., 1897, p. 740, fig. 1321. frenton (Curdsville): Mercer County, Kentucky. BELLEROPHON (part) of authors. See Sinuites Koken, Salpingostoma Roemer, Buca- nopsis Ulrich, Tetranota Ulrich and Scofield, and Oxydiscus Koken. BELLEROPHON Montfort. Genotype: B. vasulites Montfort. Bellerophon Montfort, Conchiliologie Systematique, 1, 1808, p. 51. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 286. Emmons, Amer. Geology, pt. 2, 1855, pp. 163, 164. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 306. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, pp. 130, 133. Zittel, Handb. Pal., 2, 1882, p. 183. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 192. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 158. Koken, Neues Jahrb. f. Min., Geol., Pal., Beilage-Band, 6, 1889, p. 385. Miller, N. A. Geol. Pal., 1889, p. 396. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 280. Girty, 19th Ann. Rep. U. S. Geol. Surv., 1899, p. 592. Koken, Die Leitfossilien, 1896, pp. 100, 101, fig. 78, 2. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 853-914. Pilsbry, Zittel-Eastman Textb. Pal., 1, 1900, p. 445. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 948. Grabau and Shimer, N. A. Index Fossils, 3, 1909, p. 618. Dall, Zittel-Eastman Textb. Pal., 2ed ed., 1913, p. 522. BELLEROPHON ACUTUS Sowerby. See Oxydiscus acutus. Bellerophon allegoricus White. Bellerophon allegoricus White, Geogr. Geol. Expl. West. 100th Merid., Prel. Rep., 1874, p. 10; Rep. U. S. Geogr. Surv. West 100th Merid., 4, 1877, p. 55, pi. 3, fig. 6a-c. Middle Ordovician: Fish Spring, House Range, Utah. . Cat. No. 8564, U.S.N.M. BELLEROPHON ANGUSTATA Billings. See Tremanotus angustata. BELLEROPHON ANTIQUATUS WTiitfield. See Owenella antiquata. BELLEROPHON ARGO Billings. See Oxydiscus argo. Bellerophon auriculatus Hall. Bellerophon auriculatus Hall, Pal. New York, 2, 1852, p. 334, pi. 76, fig. 7a, b. Emmons, Man. Geol., 1860, p. 108, fig. 98. Cayugan (Cobleskill) : Schoharie, New York. BELLEROPHON BIDORSATUS of authors. See Tetranota bidorsata. Bellerophon bilineatus Ulrich. Bellerophon bilineatus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 917, pi. 64, figs. 19-21. Trenton (Flanagan) : Near Danville, Kentucky. Holotype.C&t. No. 45697, U.S.N.M. BELLEROPHON BILOBATUS Emmons. See Sinuites cancellatus. BELLEROPHON BILOBATUS var. ACUTUS Hall. See Sinuites cancellatus acutus. BELLEROPHON BILOBATUS var. CORRUGATUS Hall. See Sinuites cancellatus corru- gatue. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 115 Bellerophon bretonensis Matthew. Bellerophon Bretonensis Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 1902, p. 409, pi. 18, figs. 4a-d; Geol. Surv. Canada Rep. Cambrian Rocks, Cape Breton, 1903, p. 218, pi. 18, figs. 4a-d. Canadian (Bretonian-Div. C 3c.): McLeod Brook,, near Boisdale, Cape Breton, Nova Scotia. Bellerophon calcifer Cleland. Bellerophon calcifer Cleland, Bull. Amer. Pal., 3, 1900, p. 126 (254), pi. 15, figs. 15-18; 4, 1903, p. 18. Canadian (Tribes Hill): Fort Hunter and Canajoharie, New York. BELLEROPHON CANADENSIS Billings. See Salpingostoma canadensis. BELLEROPHON CANCELLATUS Hall. See Sinuites cancellatus. Bellerophon capax Ulrich. Bellerophon capax Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 921, pi. 63, figs. 50, 51; pi. 64, figs. 40-43. Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. Cotypes.Cat. Nos. 45698, 45699, U.S.N.M. BELLEROPHON CASSINENSIS Whitfield. See Sinuites cassinensis. Bellerophon charon Billings. Bellerophon Charon Billings, Canadian Nat. Geol., 5, 1860, p. 169, figs. 14, 15; Geol. Canada, Geol. Surv. Canada, 1863, p. 146, fig. 97a, b. Black River (Leray): Pauquettes Rapids, Ottawa River, Canada. Bellerophon cincinnatiensis Miller and Faber. Bellerophon cincinnatiensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 29, pi. 1, figs. 23, 24. Maysville: Cincinnati, Ohio. Bellerophon clausus Ulrich. Bellerophon clausus Ulrich Geol. Minnesota, 3, pt. 2, 1897, p. 916, pi. 64, figs. 7-10. Hayes and Ulrich, U. S. Geol. Surv., Folio 95, 1903, illust. sheet, fig. 32-34, Trenton: Frankfort, Kentucky (Perryville), and near Nashville, Tennessee (Catheys). Cotypes. Cat. Nos. 45700, 45701, U.S.N.M. Bellerophon consimilis Savage. Bellerophon consimilis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 98, pi. 6, fig. 2. Upper Medinan (Edgewood): Alexander County, Illinois; Missouri. Bellerophon convolutus Eaton. Not recognized. Bellerophon convolutus Eaton, Geol. Textb., 2d ed., 1832, p. 28. Silurian(?): Helderberg, New York. Bellerophon declivis Conrad. Bellerophon declivis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 269, pi. 17, fig. 3.- Trenton: Near Carlisle, Pennsylvania. tellerophon dilatatus (Sowerby?) Billings. Bellerophon dilatatus (Sowerby?) Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 56 (loc. ref.). Anticostkn (Gun River and Jupiter River): The Jumpers, Anticosti. 116 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BELLEROPHON DISCULUS Billings. See Oxydiscus disculus. BELLEROPHON (BUCANIA) EXIGUA Foerste. See Bucania exigua, BELLEROPHON EXPANSUS Emmons. See Salpingostoma expansa. BELLEROPHON FISCELLO-STRIATUS Foerste. See Bucania fiscello-striata. BELLEROPHON FRATERNUS Billings. See Salpingostoma fraternum. BELLEROPHON GLOBULARIS Miller and Faber. See Sinuites globularis. Bellerophon gorbyi Miller. Belleroplion gorbyi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 694, pi. 14, figs. 7-9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 953, pi. 39, figs. 1-lb. Maysville: Dearborn County, Indiana. Bellerophon helderbergiae Maynard. Bellerophon helderbergiae Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 466, pi. 79, figs. 3, 4. Helderbergian (Keyser): Cash Valley, Maryland. Bellerophon insulae Matthew. Bellerophon insulse Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 1902, p. 408, pi. 18, fig. 3; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 217, pi. 18, fig. 3. Canadian (Bretonian Div. C3c2): McLeod Brook, near Boisdale, Cape Breton, Nova Scotia. BELLEROPHON INTEXTUS Emmons. See Bucania intexta. BELLEROPHON LINDSLEYI Safford. See Bucania lindsleyi. Bellerophon lirata Hall. Bellerophon (Bucania) lirata Hall, Geol. Rep. Wisconsin, 1862, p. 55, figa. 7, 8. Richmond (Maquoketa): Southwestern Wisconsin. BELLEROPHON HACER Billings. See Oxydiscus macer. Bellerophon miser Billings. Bellerophon miser Billings, Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866, p. 20. Richmond (English Head): Macasty Bay, Anticosti. Bellerophon mohri Miller. Bellerophon Mohri Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 306, fig. 30; N. A. Geol. Pal., 1889, p. 397, fig. 653. Ulrich and Scofield, Geol. Minne- sota, 3, pt. 2, 1897, p. 920, pi. 64, figs. 44-45. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 954, pi. 39, figs. 2-2a. Richmond (Whitewater): Richmond, Indiana; Lincoln County, Kentucky. Plesiotypes.C&t. No. 45702, U.S.N.M. BELLEROPHON MORROWENSIS Miller and Dyer. See Sinuites morrowensis. Bellerophon nashvillensis Troost. Bellerophon Nashvillensis Troost, 5th Geol. Rep. Tennessee, 1840, p. 54; 6th Rep., 1841, p. 175 (nom. nud.); 7th Rep., 1844, p. 17. Ordovician: Davidson County, Tennessee. Observation. Not defined. Probably refers to the abundant Bellerophon troosti D'Orbigny. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 117 Bellerophon nautarum Salter. Bellerophon Nautarum Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2, App., 1852, p. ccxxiii, pi. 5, fig. 20. Niagaran: Dundas Island, Victoria Channel, Arctic America. BELLEROPHON (BUCANIA) OPERTUS Foerste. See Bucania operta. BELLEROPHON PALINURUS Billings. See Oxydiscus palinurus. Bellerophon patersoni Hall. Bellerophon patersoni Hall, Geol. Rep. Wisconsin, 1862, p. 55, fig. 9. Richmond (Maquoketa): Southwestern Wisconsin. BELLEROPHON (BUCANIA) PERFORATUS Winchell and Marcy. See Tremanotus al- pheus. Bellerophon platystoma (Meek and Worthen). Bellerophon (Bucania?) platystoma Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 312, pi. 3, figs. 8a, b. Bellerophon platystoma Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 918, pi. 64, figs. 22-30. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 619, figs. 829d-g. Trenton: Galena and Dixon, Illinois (Galena); Kenyon, Wykoff, etc., Minnesota (Prosser). Plesiotypes.C&t. Nos. 45703, 45704, U.S.N.M. Bellerophon profundus Emmons. Bellerophon profundus Emmons, Nat. Hist. New York Geol., 2, 1842, p. 393, fig. 103; Amer. Geology, 1, pt. 2, 1855, p. 233, pi. 17, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 86, figs. Trenton: Watertown, New York. BELLEROPHON PUNCTIFRONS Emmons. See Bucania punctifrons. Bellerophon recurvus Ulrich. Bellerophon recurvus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 920, pi. 64, figs. 11-13. Maysville (Corryville) : Cincinnati, Ohio. Cotypes. Cat. No. 45705, U.S.N.M. Bellerophon rogersensis Foerste. Bellerophon rogersensis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 141, pi. 2, figs. 4a-c. Trenton (Upper): Near Rogers Gap, Kentucky. BELLEROPHON ROTUNDATUS Emmons. See Bucania sulcatina. Bellerophon rugosus Emmons. Bellerophon rugosus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 166, fig. 37; Man. Geol., 1860, p. 103, fig. 93. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 853 (gen. ref.). Bucania rugosa Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 97, fig. Cincinnatian (Pulaski): Lorraine, Jefferson County, New York. Bellerophon semisculptus Matthew. Bellerophon semisculptus Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 1902, p. 410, pi. 18, fig. 5; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 219, pi. 18, fig. 5. Canadian (Bretonian Div. C3c2): McLeod Brook, near Boisdale, Cape Breton, Nova Scotia. 118 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bellerophon shelbiensis Clarke and Ruedemann. Bucania stigmosa Whiteaves (not Hall), Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 34, pi. 5, fig. 3; pi. 8, fig. 4. Bellerophon shelbiensis Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 51, pi. 5, figs. 13-19. Niagaran (Guelph-Shelby) : Shelby, New York. Bellerophon similis Ulrich and Scofield. Bellerophon similis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 919, pi. 64, figs. 31-39. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 165. Trenton: Wykoff, Kenyon, etc., Minnesota (Prosser); Head of Frobisher Bay, Baffin Land. Cotypes.C&t. Nos. 45706, 45707, U.S.N.M. Bellerophon solitarius Billings. Bellerophon solitarius Billings, Cat. Sil. Fossils, Anticosti, Geol. Surv. Canada, 1866, p. 20. Richmond (English Head): McCasty Bay, Anticosti. Bellerophon subangularis Ulrich. Bellerophon subangularis Ulrich, Geol. Minnesota, 3, 1897, p. 920, pi. 64, figs. 14-16. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 954, pi. 39, figs. 3-3b. Richmond (Whitewater): Richmond, Indiana. HolotypeCat. No. 45708, U.S.N.M. Bellerophon subglobulus Ulrich. Bellerophon subglobulus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 917, pi. 64, figs. 17 and 18. Black River (Lowville): Mercer County, Kentucky. Holotype.C&t. No. 45709, U.S.N.M. Bellerophon subovatus Cleland. Bellerophon subovatus Cleland, Bull. Amer. Pal., 3, 1909, p. 217 (255), pi. 15, figs. 19-21. Canadian (Tribes Hill): Near Fort Hunter, New York. BELLEROPHON SULCATINUS of authors. See Bucania sulcatina. BELLEROPHON TRLLOBATUS Hall. See Bucanella trilobata. Bellerophon troosti D'Orbigny. Bellerophon troosti D'Orbigny, Cephalopoda, 1840, p. 206. Safford, Geol. Tennes- see, 1869, p. 289, pi. 3G, figs. 4a-4d. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 915, pi. 64, figs. 1-5. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 618, fig. 829a-c. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, p. 183, fig. 20, 9, 10. Trenton: Nashville, Hartsville, etc., Tennessee (Catheys) Danville; Frankfort, etc., Kentucky (Flanagan); Virginia. PlesiotypesC&t. Nos. 45710, 45711, U.S.N.M. Bellerophon troosti burginensis Ulrich. Bellerophon troosti var. burginensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 916, pi. 64, fig. 6. Trenton (Flanagan): Near Burgin and Danville, Kentucky. HolotypeGsA. No. 45712, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 119 Bellerophon tuber Hall. Bellerophon tuber, Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 30, figs. 19, 20; mus. ed., 1879, p. 177, pi. 30, figs. 19, 20; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 320, pi. 31, figs. 19, 20; pi. 33, fig. 6. Niagaran (Waldron): Waldron, Indiana. Bellerophon volutus Eaton. Not recognized. Bellerophon volutus Eaton, Geol. Textb., 1832, p. 28. Silurian: Helderberg region of New York. BELLEROPHON WISCONSINENSIS Whitfield. See Tetranota wisconsinensis. BERENICEA Lamouroux. Genotype: Berenicea diluviana Lamouroux. Berenicea Lamouroux (part), Expos. Meth. des Genres d. Pol., 1821, p. 80. McCoy, Brit. Pal. Foss., 52, p. 44. D'Orbigny, Pal. Franc. Terr. Cret., 5, 1854, p. 858. Haime, Bry. de la Form. Juras., 1854, p. 175. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 149. Miller, N. A. Geol. Pal., 1889, p. 294. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 368; Geol. Minnesota, 3, 1893, p. 120. ZittePs Textb. Pal. (Engl. ed.), 1896, p. 261. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 594. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 20. Bassler, Bull. U. S. Geol. Surv. 292, 1906, p. 16. Hennig, Archiv. fur Zool., K. Sven. Vet.-Akad. Stock- holm, 3, No. 10, 1906, p. 25. Grabau and Shimer, N. A. Index Fossils, I, 1907, p. 119. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 741. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 319. Rosacilla Roemer, Verst. des Norddeutsh. Kreidegeb., 1840, p. 19. Diastopora (not Lamouroux) D'Orbigny, Busk and other English authors. Diastoporella Vine, Rep. Brit. Assoc. Adv. Sci., 52, 1883, p. 275; Rep. 53d Meet- ing Brit. Assoc. Adv. Sci., 1884, p. 187; Proc. Yorkshire Geol. Polyt. Soc., 9, 1887, p. 190. Sagenella Hall, Amer. Jour. Sci. and Arts, 2d ser., 11, 1851, p. 401; Pal. New York, 2, 1852, p. 172. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 171. Miller, N. A. Geol. Pal., 1889, p. 321. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 8. Simpson, 14th Ann. Rep. State Geol. New York, 1897, p. 597. Berenicea consimilis (Lonsdale). Aulopora consimilis Lonsdale, in Murchison's Sil. Syst., pt. 2, 1839, p. 675, pi. 15. - Hall, Pal. New York, 2, 1852, p. 173, pi. 40E, figs. 8a, b. Diastopora consimilis Vine, Quart. Jour. Geol. Soc. London, 38, 1882, p. 58. Diastoporella consimilig Vine, Rep. 53d meeting British Assoc. Adv. Sci., 4, 1883; Proc. Yorkshire Geol. and Polytech. Soc., 9, 1887, p. 190, pi. 12, figs. 18-20. Berenicea consimilis Bassler, Bull. U. S.'Geol. Surv., 292, 1906, pp. 16, 17, pi. 5, figs. 1-5. Sagenella membranacea Hall, Pal. New York, 2, 1852, p. 172, pi. 40E, figs. 6a, b. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 181. Sagenella elegans Hall, 28th Rep. New York State Mus., doc. ed., 1876, pi. 7, figs. 12, 13; Mus. ed., 1879, p. 118, pi. 7, figs. 12, 13; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 242, pi. 6, figs. 12, 13. Lesley, Geol. Surv. Penn- sylvania, Rep. P 4, 1890, p. 917, figs. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, pi. 20, fig. 4 Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 181. Silurian: Dudley and Shropshire, England (Wenlock); Island of Gotland; western New York and Ontario (Rochester); Osgood, Indiana (Osgood); Waldron, Indiana; and Newsom, Tennessee (Waldron). Plesiotypes Cat. Nos. 35565, 44115, U.S.N.M. 120 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BERENICEA ELEGANS Nickles and Bassler. See Berenicea consimilis. BERENICEA MEMBRANACEA Nickles and Bassler. See Berenicea consimilis. Berenicea minuesotensis Ulrich. Berenicea minnesotensis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 58; Geol. Minnesota, 3, 1893, p. 120, pi. 1, figs, 25, 27, 29, pi. 2, fig. 1. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 595, figs. 197, 198. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 119, fig. 178e. Proboscina minnesotensis Sardeson, Jour. Geol., 9, 1901, p. 169, fig. 2B. Black River (Decorah): Minneapolis, Minnesota, and vicinity. Cotypes. Cat. No. 43269, U.S.N.M. Berenicea primitiva Ulrich. Berenicea primitiva Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 157, pi. 6, fig. 4, Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 779, pi. 26, fig. 12. Maysville and Richmond: Cincinnati, Waynesville, Lebanon, Clarksville, etc., Ohio; Richmond and Versailles, Indiana. Holotype.Ca,t. No. 43268, U.S.N.M. Berenicea vesiculosa Ulrich. Berenicea vesiculosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 158, pi. 6, fig. 5. Eden: Cincinnati, Ohio, and vicinity. Holotype.CB,t. No. 43267, U.S.N.M. BETRICHIA McCoy. Genotype: B. kloedeni McCoy. Beyrichia McCoy (part), Synop. Sil. Foss. Ireland, 1846, p. 57. Bell and Forbes, in Burmeister's Org. Tril., London, Suppl. App., 1846, p. 124. McCoy, Brit. Pal. Rocks and Foss., 1854, p. 135. Jones, Ann. Mag. Nat. Hist., 2d ser., 16, 1855, p. 85. Hall, Pal. New York, 3, 1859, p. 377. Barrande, Syst. Sil. du Centre Bohme, 1, Suppl., 1872, p. 490. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 118. Zittel, Handb. Pal., 2, 1885, p. 553. Renter, Zeits. d. d. Geol. Gesell., 37, 1885, p. 628. Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, pp. 338, 345. Jones and Kirkby, Proc. Geol. Assoc. (London), 9, 1886, p. 505. Verworn, Zeits. d. d. Geol. Gesell., 39, 1887, p. 27. Krauss, ibid., 41, 1889, p. 17. Miller, N. A. Geol. Pal., 1889, p. 534. Vogdes, Annals New York Acad. Sci., 5, 1889, p. 8, pi. 2, figs. 19-21. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 657. Koken, Die Leitfossilien, Leipzig, 1896, p. 40, text fig. 26B, p. 431. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 306. Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 644. Ulrich and Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 151; 35, 1908, pp. 283, 284. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355. Bassler, Zittel- Eastman Textb., Pal., 2d ed., 1913, p. 738. Observation. Most of the earlier references in the above bibliography are not to Beyrichia as now restricted. Beyrichia atlantica Billings. Beyrichia Atlantica Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 300. Chazyan (Quebec L, M): Point Rich and Table Head, Newfoundland. BEYRICHIA BARRETTI Weller. See Kloedenia barretti. Beyrichia bella Walcott. Beyrichia bella Walcott, Desc. new Spec. Trenton Group, 1883, p. 7, pi. 17, fig. 11; 35th Rep. New York State Mus. Nat. Hist., 1884, p. 213, pi. 17, figs. 11, lla. Trenton: Trenton Falls, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 121 BEYRICHIA BICORNIS Miller. See Dicranella bicornis. BEYRICHIA BUCHIANA Jones. See Bollia persulcata. BEYRICHIA CHAMBERSI Miller. See Ceratopsis chambersi. BEYRICHIA CHAMBERSI VAR. ROBUSTA Ulrich. See Ceratopsis robusta. BEYRICHIA CILIATA Einmons. See Ctenobolbiua ciliata. BEYRICHIA CINCINNATIENSIS Miller. See Primitia cincinnatiensis. BEYRICHIA CLARKEI Jones. See Kloedenella clarkei. Beyrichia clathrata Jones. Beyrichia clathrata Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 242, pi. 9, fig. 1. Niagaran: Beechey Island, Arctic America. BEYRICHIA CLAVIGERA Jones. See Isochilina? clavigera. BEYRICHIA CLAVIGERA CLAVIFRACTA Jones. See Isochilina? clavigera clavifracta. BEYRICHIA DECKERENSIS Weller. See Kloedenia manliensis deckerensis. BEYRICHIA DECORA Billings. See Beyrichia venusta. Beyrichia difflsa Jones. Beyrichia diffisa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 546, pi. 21, fig. 7. Anticostian (Jupiter River) : Jupiter River, Anticosti. BEYRICHIA DURYI Miller. See Ctenobolbina duryi. Beyrichia equilatera Hall. Beyrichia equilatera Hall, Canadian Nat. Geol., 5, 1860, p. 158, fig. 20. Dawson, Acadian Geol., 2d ed., 1868, p. 609, fig. 217. Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 18, pi. 2, fig. 6; p. 552; Geol. Surv. Canada, Contr. Micro- Pal., pt. 3, 1891, p. 72, pi. 11, fig. 6. Silurian: Arisaig, Nova Scotia. Beyrichia forbesi Jones. Beyrichia Forbesii Jones, Quart. Jour. Geol. Soc. London, 17, 1861, p. 67, pi. 4, figs. 13a-c. Silurian: Mount Illampu, Bolivia. Beyrichia granulosa Hall. Beyrichia granulosa Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 32, fig. 4; mus. ed., 1879, p. 186, pi. 32, fig. 4; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 331, pi. 34, fig. 4. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 37, fig. 15. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355, fig. 1663a. Niagaran (Waldron) : Waldron, Indiana. BEYRICHIA HALLI Jones. See Kloedenella halli. BEYRICHIA HAMMELLI Miller and Faber. See Ctenobolbina hammelli BEYRICHIA INITIALIS Ulrich. See Kloedenia initialis. BEYRICHIA JERSEYENSIS Weller. See Kloedenia jerseyensis BEYRICHIA KUMMELI Weller. See Kloedenia kiimmeli. 122 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Beyrichia lata (Vanuxem). Agnostus latus Vanuxem, Geol. New York, 3d Geol. Dist., 1842, p. 80. Beyrichia lata Hall (part), Pal. New York, 2, 1852, p. 301, pi. A 66, figs. lOc-e. (Not b=Bollia lata.) Jones, Ann. Mag. Nat. Hist., 2d ser., 16, 1855, p. 168, pi. 6, fig. 13. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 90, figs. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 292, fig. 25. Clinton: New York, Pennsylvania, Maryland, etc. Plesiotype.Cat. No. 41557, U.S.N.M. Beyrichia lata triplicata Foerste. Beyrichia lata-triplicata Foerste, Bull. .Geol. Surv. Kentucky, 7, 1906, p. 329; Jour. Cincinnati Soc. Nat. Hist., 21, 1909, pi. 1, fig. 4. Clinton (Alger) : Lewis County, Kentucky. BEYRICHIA LOGANI Jones. See Primitia logani. BEYRICHIA LOGANI var. LEPERDITIOIDES Jones. See Primitia logani leperditioides. BEYRICHIA LOGANI var. RENIFORMIS Jones. See Primitia logani reniformis. BEYRICHIA MANLIENSIS Miller. See Klcedenia manliensis. BEYRICHIA MARGINATA Miller. See Dicranella marginata. BEYRICHIA MONTAGUENSIS Weller. See Klcedenia montaguensis. Beyrichia moodeyi Ulrich and Bassler. Beyrichia moodeyi Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 285, pi. 37, fig. 8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355, fig. 1663d. Cayugan (Mackenzie) : Near Cacapon, West Virginia. Cotypes.Cat. No. 53936, U.S.N.M. BEYRICHIA NEARPASSI Weller. See Kloedenia nearpassi. BEYRICHIA NOETLINGI Renter. See Beyrichia tuberculata noetlingi. BEYRICHIA NOTATA Hall. See Klcedenia notata. BEYRICHIA NOTATA var. VENTRICOSA Hall. See Klcedenia notata ventricosa. BEYRICHIA OCULIPERA Miller. See Ceratopsis oculifera. Beyrichia parallel a (Ulrich). Primitia? (?Beyrichia) parallela Ulrich, Geol. Surv. Canada, Contr. Micro-Pal., pt. 2, 1889, p. 51, pi. 9, figs. 7, 7a. Beyrichia (?Primitia) parallela Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 125, pi. 10, fig. 15a-c. Beyrichia parallela Ulrich and Bassler, Proc. U. S.-Nat. Mus., 35, 1908, p. 319, fig. 64. Richmond: Stony Mountain, Manitoba (Stony Mountain); Richmond, Indiana; Oxford, Ohio (Whitewater); Anticosti (Charleton). Plesiotype.Csit. No. 41434, U.S.N.M. BEYRICHIA PERINPLATA Weller. See Klcedenia sussexensis. BEYRICHIA PERSULCATA Ulrich. See Bollia persulcata. Beyrichia plagosa Jones. Beyrichia plagosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 243, pi. 9, fig. 2. Niagaran: Beechey Island, Arctic America. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 123 Beyrichia pustulosa Hall. Beyrichia pustulosa Hall, Canadian Nat. Geol., 5, 1860, p. 157, fig. 19. Dawson, Acadian Geol., 2d ed., 1868, p. 608, fig. 216. Beyrichia tuberculata var. pustulosa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 18, pi. 2, fig. la-c; Geol. Surv. Canada, Contr. Micro-Pal., pt. 3, 1891, p. 76, pi. 11, fig. 2. Silurian: Arisaig, Nova Scotia. BEYRICHIA QUADRIFIDA Jones. See Ceratopsis? quadrifida. BEYRICHIA QUADRILIRATA Hall and Whitfield. See Tetradella quadrilirata. BEYRICHIA REGULARIS Emmons. See Bollia regularis. BEYRICHIA REGULARIS Miller. See Tetradella quadrilirata. BEYRICHIA RICHARDSONI Miller. See Drepanella richardsoni. BEYRICHIA RUGUUFERA Jones. See Primitia rugulifera. BEYRICHIA SIGILLATA Jones. See Primitia sigillata. BEYRICHIA SIMPLEX Miller. See Dicranella? simplex. Beyrichia simplex Emmons. Not recognized. Beyrichia simplex Emmons (not Jones, 1853), Amer. Geology, 1, pt. 2, 1855, p. 218, fig. 74a. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 91, fig. Bine limestone: Ohio. BEYRICHIA SMOCKI Weller. See Klcedenia smocki. BEYRICHIA SPINOSA Hall. See jEchmina spinosa. BEYRICHIA SPINOSA Miller. See Dicranella spinosa. BEYRICHIA STRIATO-MARGINATUS Miller. See Eurychilina? striatomarginata. BEYRICHIA SUSSEXENSIS Weller. See Klcedenia sussexensis. BEYRICHIA SYMMETRICA Hall. See Klcedenella symmetrica. BEYRICHIA SYMMETRICA Emerson. See Drepanella symmetrioa. BEYRICHIA TRISULCATA Hall. See Klcedenella trisulcata. Beyrichia tuberculata (Kloeden). Battus tuberculatus Kloeden (part), Verstein. der Mark Brandenburg, 1834, p. 115-117, pi. 1, figs. 21-23. Agnostus tuberculatus Quenstedt, Petrefactenkunde, 1852, p. 302, pi. 23, figs. 25-28. Beyrichia tuberculata Boll, Palaeontographica, 1, 1847, p. 127; Archiv des Vereins der Freunde der Naturgeschichte in Meklenburg, 16 Jahr., 1862, p. 119, pi. 1, figs, la, b. Bronn and Roemer, Lethaea geog., 1, 1854, p. 536, pi. 10, figs. 9a-d. Jones, Ann. Mag. Nat. Hist., 2d ser., 16, 1855, p. 86, pi. 5, figs. 4-9b; Proc. Geol. Soc., Pal. Div. Entom., 1869, p. 12, figs. 12a-c; Geol. Mag., dec. 2, 3, 1881, p. 344, pi. 10, figs. 8-10; Ann. Mag. Nat. Hist., 6th ser., 1, 1888, p. 402, pi. 21, fig. 12. Roemer, Lethsea palaeozoica, 1876, pi. 19, figs. 9a-d. Krause, Zeitschr. d. d. geol. Gesell., 29, 1877, p. 30, pi. 1, figs. 12a, b. Hoernes, Palaeontologie, 1884, p. 379, figs. 525c, d. Reuter, Zeits. d. d. geol. Ges., 37, 1885, p. 632, pi. 25, figs, la, b. Zittel, Handb. Pal., 2, 1885, p. 553, figs. 739, 740. Verworn, Zeitschr. d. d. geol. Gesell., 1887, p. 31, pi. 3, fig. 12. Jones, Contr. Micro-Pal., Geol. Surv. Canada, 3, 1891, p. 74, pi. 2, fig. 3. Silurian: Europe; Stonehouse Brook, Arisaig, Nova Scotia. 124 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Beyrichia tuberculata noetlingi (Reuter). Beyrichia Noetlingi Reuter, Zeits. d. d. geol. Gesell., 37, 1885, p. 637, pi. 25, figs. 5a, 5b. Beyrichia tuberculata var. noetlingi Jones, Contr. Micro. Pal. Geol. Surv. Canada, 3, 1891, p. 78, pi. 11, figs. 4a, b, 5. Silurian: Europe; Stonehouse Brook, Arisaig, Nova Scotia. BEYRICHIA TUBERCULATA var. PUSTULOSA Jones. See Beyrichia pustulosa. Beyrichia tuberculata strictispiralis Jones. Beyrichia tuberculata var. strictispiralis Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 77, pi. 11, fig. 1. Silurian: Arisaig, Nova Scotia. Beyrichia tumida (Ulrich). Ctenobolbina tumida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 11, pi. 7, figs. 5a-5b. Beyrichia tumida Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 285; p. 292, fig. 24; p. 294, fig. 33. Richmond (lower): McKinneys and Moreland, Kentucky. Eolotype and ple#iotype.Ca,t. Nos. 41326, 41327, U.S.N.M. BEYRICHIA TUMIFRONS Hall. See Ctenobolbina ciliata. Beyrichia venusta Billings. Beyrichia venusta Billings, Geol. Surv. Canada, Cat. Sil. Foss. Anticosti, 1866, p. 68. Beyrichia decora Billings, ibid., p. 67. Anticostian (Jupiter River): East Point, Chaloupe River, Jumpers, etc., Arti- costi. Observation. B. decora was based on the female form of B. venusta. Beyrichia waldronensis Ulrich and Bassler. Beyrichia waldronensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 286, pi. 27, figs. 9, 10. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355, fig. 1663b, c. Niagaran (Waldron): Waldron, Indiana. Cotypes. Cat. No. 41660, U.S.N.M. . BEYRICHIA WALLPACKENSIS Weller. See Klcedenia wallpackensis. BILLINGSELLA Hall and Clarke. Genotype: Orthis coloradoensis Shumard. Kutorgina Hall and Clarke (not Walcott), Pal. New York, 8, pt. 1, 1892, pp. 90-94. Billingsella Hall and Clarke, llth Ann. Rep. State GeoT. New York, 1892, p. 273; 45th Ann. Rep. New York State Mus., 1892, p. 589; Pal. New York, 8, pt, 1, 1892, pp. 230-231. Schuchert (part), Bull. U. S. Geol. Surv., 87, 1892, p. 158. Walcott (part), Proc. U. S. Nat. Mus., 28, 1905, pp. 227-229. Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 210. Walcott, Smiths. Misc. Coll., 53, 1908, pp. 142 and 148, pi. 11; Mon. U. S. Geol. Surv., 51, 1912, p. 749. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 380. Billingsella coloradoensis (Shumard). Orthis coloradoensis Shumard, Trans. Acad. Sci. St. Louis, 1, 1860, p. 627. Orthis pepina Hall, 16th Ann. Rep. New York State Cab. Nat. Hist., 1863, pp. 134-135, pi. 6, figs. 23-27. Whitfield, Geol. Wisconsin, 4, pt. 3, 1882, pp. 170-171, pi. 1, figs. 4, 5. Orthis? (Orthisina?) pepina Hall, 2d Ann. Rep. State Geol. New York, 1883, pi. 8, figs. 1, 2. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 125 Billingsella coloradoensls Continued. Orthis (Billingsella) pepina Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 96. Billingsella pepina Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 230, pi. 7, figs. 16-19; pi. 7a, figs. 7-9. Billingsella coloradoensis Walcott, Mon. U. S. Geol. Surv., 32, pt. 2, 1899, pp. 450-451, pi. 61, figs. 1, la-d; Proc. U. S. Nat. Mus., 28, 1905, pp. 231-234. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 210. Walcott, Mon. U. S. Geol. Surv., 51, 1912, pp. 299, 751, fig. 6, pi. 85, figs. 1, la-z. Ozarkian (Oneota): Stillwater, Washington County, Minnesota. Middle and Upper Cambrian of Montana, Texas, Wisconsin, etc. Pleviotypes.Ca,t. Nos. 34774, 34776, U.S.N.M. Billingsella dice Walcott. Billingsella dice Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 234; Mon. U. S. Geol. Surv., 51, 1912, p. 754. Lower Ordovician (drift bowlder of sandstone): St. Albans, Franklin County, Vermont. Holotype and paratypes.C&t. No. 52248, U.S.N.M. Billingsella(?) grandaeva (Billings). Orthisina grandaeva Billings, Canadian Nat. Geol., 4, 1859, p. 349, fig. 1; Geol. Canada, 1863, p. 113, fig. 21. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 540, fig. Canadian (Romaine): Mingan Islands, Canada. Observation. See Orthis piger for a possible synonym. BILLINGSELLA LAURENTINA Hall and Clarke. See Orthis(?) laurentina. BILLINGSELLA PEPINA Hall and Clarke. See Billingsella coloradoensis. Billingsella(?) primordialis (Whitfield). Streptorhynchus? primordiale Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886. p. 301, pi. 24, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep., P 4, 1890, p. 1096, fig. Seely, Rep. State Geol. Vermont, 7, 1910, pi. 52, fig. 7. Canadian (Beekmantown): Fort Cassin, Vermont. BILLINGSIA Ford. See Elkania Ford. BILLINGSIA Walcott. See Matherella Walcott. BILLINGSIA PRETIOSA Ford. See Acrothele pretiosa. BILLINGSIA SARATOGENSIS \Valcott. See Matherella saratogensis. BILLINGSITES Hyatt. Genotype: Ascoceras canadense Billings. Billingsites Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 278. Zittel, Handb. Pal., 2, 1884, p. 373. Hyatt, Zittel-Eastman, Textb. Pal., 1, 1900, p. 516; 2ded.,1913, p. 597. Billingsites canadensis (Billings). Ascoceras Canadense Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 310; Geol. Canada, Geol. Surv. Canada, 1863, p. 218, fig. 227; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 23 (loc. ref.). Miller, N. A. Geol. Pal., 1889, p. 432, fig. 726. Billingsites canadense Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 278 (gen. ref.). Richmond (English Head and Charleton): English Head, etc., Anticosti. 126 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BILOBIT.ES Linnaeus. Genotype: Anomia biloba Linnaeus. Bilobites Linnaeus, Syst. Naturae, ed. Muller, 6, 1775, p. 325. Zittel, Handb. Pal., 1, Munich, 1880, p. 674. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, pp. 38, 87. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1884, p. 549. Hall, Bull. Geol. Soc. Amer., 1, 1889, p. 21. Dawson, Quart. Jour. Geol. Soc. London, 46, 1890, p. 595. Beecher, Amer. Jour. Sci., 3d ser., 42, 1891, p. 51; 44, 1892, p. 152. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 204, 223; llth Ann. Rep. New York State Geol., 1894, p. 269. Koken, Die Leitfossilien, Leipzig, 1896, p. 234. Cumings, Amer. Jour. Sci., 4th ser., 1903, p. 40. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 259. Dicoelosia King, Mon. Permian Fossils England, Pal. Soc., 1850, p. 106. Bilobites acutllobus (Ringueberg). Orthis acutiloba Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 134, pi. 7, fig. 5. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 507, figs. Bilobites acutilobus Beecher, Amer. Jour. Sci., 3d ser. 42, 1891, p. 52, pi. 1, fig. 1. Clinton (Rochester): Lockport, New York. Bilobites bilobus (Linnaeus). Anomia biloba Linnaeus, Systema Naturae, ed. 12, 1767, p. 1154. Delthyris sinuatus Hall, Geol. New York, Rep. 4th Dist., 1843, p. 105, fig. 8. Owen (Hall), Amer. Jour. Sci. Arts, 48, 1845, p. 313, fig. 8. Spirifer bilobus Hall, Amer. Jour. Sci., 2d ser., 20, 1849, p. 228; Pal. New York, 4, 1852, p. 260, pi. 54, fig. 1. Orthis biloba Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 85. Davidson, Mon. British Sil. Brach., Pal. Soc., 1869, p. 206, pi. 26, figs. 10- 15. Safford, Geol. Tennessee, 1869, p. 315, fig. 10. Hall, llth Rep. State Geol. Indiana, 1882, p. 286, pi. 27, fig. 16. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 510, fig. Bilobites bilobus Beecher, Amer. Jour. Sci., 3d ser., 42, 1891, p. 52, pi. 1, fig. 28. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 190, 204, 205, 223, pi. 5B, figs. 11-14. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 259. Niagaran: Lockport, etc., New York; Ontario (Rochester); Waldron, Indiana, and Newsom, Tennessee (Waldron). Anticostian (Gun River and Jupiter River): Anticosti. BISTRAMIA Hoek. Genotype: B. elegansHoek. Bistramia Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 247. Bistramia elegans Hoek. Bistramia elegans Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 247, pi. 8, figs. 12, 13. Ordovician: Totorapampa, Bolivia. BLASTOIDOCRINUS Billings. Genotype: B. carcharisedens Billings. Blastoidocrinus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 18. Chapman, Canadian Jour., n. s., 6, 1861, p. 514, footnote; Expos. Min. Geol. Canada, 1864, p. 108. Zittel, Handb. Pal., 1, 1879, p. 423. Etheridgeand Carpenter, Ann. Mag. Nat. Hist., 5th ser., 9, 1882, p. 214, footnote. Miller, N. A. Geol. Pal., 1889, p. 229. Jaekel, Stammesgeschichte d. Pelmatozoen, 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 389. Bather, Rep. Mus. Assoc., 1900, p. 103; Treatise on Zool., pt. 3, Echinoderma 1900, p. 80, fig. 3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 477. Hudson, Bull. New York State Mus., 149, 1911, p. 203. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 167. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 127 Blastoidocrinus carchariaedens Billings. Blastoidocrinus carcharisedens Billings, Can. Org. Rem., dec. 4, Geol. Surv. Canada, 1859, p. 18, pi. 1, figs, la-n; fig. 6, p. 20. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 81, fig. 3, i, 2. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 478, fig. 1787. Blastoidocrinus carcharidens Miller, N. A. Geol. Pal., 1889, p. 229, text fig. 257. Hudson, Bull. New York State Mus., 107, 1907, p. 97, figs. 1, 2; pis. 1-7; p. 149, 1911, pis. 1-4. Chazyan: Caughnawaga, Islands of Montreal, Jesus, and Bizard, Canada; Val- cour Island, New York (Valcour). BLASTOPHYCUS Miller and Dyer. Genotype: B. diadematum Miller and Dyer. Blastophycus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 24. Miller, N. A. Geol. Pal., 1889, p. 109. Blastophycus diadematum Miller and Dyer. Blastophycus diadematum Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 24, pi. 1, figs. 1, 2. Miller, N. A. Geol. Pal., 1889, p. 109, fig. 17. Eden (Economy): Cincinnati, Ohio, and vicinity. BLOTHROPHYLLUM Billings. Genotype: B. decorticatum Billings. Blothrophyllum Billings, Canadian Jour., n. s., 4, 1859, p. 129. Nicholson, Cana- dian Nat., n. s., 7, 1874, p. 139; Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 18. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 112. Miller, N. A. Geol. Pal., 1889, p. 174. Sherzer, Amer. Geol., 7, 1891, pp. 284-289. Lambe, Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 171. Blothrophylluin csespitosuin Rominger. Blothrophyllum caespitosum Rominger, Geol. Surv. Michigan, ?, pt. 2, 1876, p. 114, pi. 42. Niagaran: Point Detour, Michigan. Blothrophyllum cinctosum Greene. Blothrophyllum cinctosum Greene, Contr. Indiana Pal., 2, pt. 2, 1906, p. 34, pi. 7, figs. 7, 8. Niagaran (Louisville): Near Louisville, Kentucky. Blothrophyllum niagarense Davis. Blothrophyllum niagarense Davis, Kentucky Fossil Corals, Geol. Surv. Ken- tucky, pt. 2, 1885, pi. 99, fig. 10. Niagaran (Louisville): Near Louisville, Kentucky. BLUMENBACHIUM Roemer. See Astrseospongia Roemer. BLUMENBACHIUM MENISCUS Roemer. See Astraeospongia meniscus. BODMANIA Miller and Faber. Genotype: B. msuetum Miller and Faber. Bodmania Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 22. Miller, N. A. Geol. Pal., 2d App., 1897, p. 780. Observation. Probably the same as Cyrtodonta. Bodmania insuetum Miller and Faber. Bodmania insuetum Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 23, pi. 1, figs. 5-7. Richmond (Whitewater): Richmond, Indiana. BODMANIA VENTRICOSA Miller and Faber. See Whitella ventricosa. 128 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BOLBOCEPHALUS Whitfield. Genotype: Bathyurus seelyi Whitfield. Bolbocephalus Whitfield, Bull. Amer. Mus. Nat. Hist,, 2, 1890, p. 36. Miller, N. A. Geol. Pal., 1st App., 1892, p. 705. Bolbocephalus seelyi (Whitfield). Bathyurus? Seelyi Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 339, pi. 33, fig. 12-18. Bolbocephalus Seelyi Whitfield, Bull. Amer. Mus. Nat, Hist,, 3, 1890, pi. 3, figs. 1-8. Seely, Rep. State Geol. Vermont, 7, 1910, pi. 57, figs. 1-3. Canadian (Beekmantown) : Fort Cassin, Vermont, and Beekmantown, New York. Bolbocephalus? truncatus Whitfield. Bolbocephalus? truncatus Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 37, pi. 2, figs. 6-8. Canadian (Beekmantown) : Fort Cassin, Vermont, BOLBOPO RITES Pander. Genotype: B. mitralis Pander. Bolboporites Pander, BeitragzurGeognosie Russlands, 1830, p. 106. Edwards and Haime, Mon. d. Polyp. Foss. Terr. Pal., 1851 (Arch. du. Mus. d'Hist, Nat., 5), p. 246. Eichwald, Leth. Rossica, 1, sect. 1, 1860, p. 495. Miller, N. A. Geol. Pal., 1889, p. 174. Bolboporites americanus Billings. Bolboporites americanus Billings, Canadian Nat. Geol., 4, 1859, p. 429, figs. 3-6; Geol. Surv. Canada, 1863, p. 124, fig. 124a-d. Chapman, Canadian Jour., n. s., 8, 1863, p. 195, fig. 165b; Expos. Min. Geol. Canada, 1864, p. 167, fig. 165b. Miller, N. A. Geol. Pal., 1889, p. 174, fig. 140. Ruedemann, Bull. New York State Mus., 49, 1901, p. 11, pi. 1, fig. 1. Chazyan: Montreal and Mingan Islands, Canada; New York; Rysedorph Hill, Rensselaer County, New York (Rysedorph). BOLIVIAN A Salter. Genotype: B. melocactus Salter. Boliviana Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71. Boliviana bipennis Salter. Boliviana bipennis Salter, Quart, Jour. Geol. Soc. London, 17, 1861, p. 72, pi. 5, fig. 11. Ordovician(?): Valley of Unduavi, Bolivia. Boliviana melocactus Salter. Boliviana melocactus Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5, fig. 9. Ordovician(?): Valley of Aceromarka, Bolivia. Boliviana proboscidea Salter. Boliviana proboscidea Salter, Quart, Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5, fig. 10. Ordovician(?): Valley of Aceromarka, Bolivia. B OL LI A Jones and Holl. Genotype: B. bicollina Jones and Holl. Bollia Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 360. Krause, Zeits. d. d. geol. Gesell., 41, 1889, p. 13. Miller, N. A. Geol. Pal., 1st App., 1892, p. 705. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 668. Koken, Die Leitfossilien, Leipzig, 1896, p. 40, fig. 26D. Ulrich, Zittel-Eastman Textb. Pal. ,1,1900, p. 644. Grabau, Bull. New York State Mus., 45, 9,1901, p. 219. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 219. Bonnema, Mitt. Min. Geol. Inst. Groningen, 2, 1909, p. 57.- Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 351. Bassler. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 129 BOLLIA CLARKEI Uliich. See Klcedenella clarkei. Bollia cornucopise Ruedemann. Bollia cornucopias Ruedemann, Bull. New York State Mus., 49, 1901, p. 82, pi. 6, figs. 1, 2. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. BOLLIA HALLI Ulrich. See Klcedenella halli. Bollia lata Jones. Beyrichia lata Hall (part), Pal. New York, 2, 1852, p. 301, pi. A 66, fig. lOb (not figs. 10c-e= Beyrichia lata). Bollia lata Jones, Amer. Geol., 4, 1889, p. 339. Grabau and Shimer N. A. Index Fossils 2, 1910, p. 352. Clinton: New York, Pennsylvania, Maryland, etc. Bollia lata brasiliensis Clarke. Bollia lata var. brasiliensis Clarke, Archives. Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 22, pi. 2, figs. 30, 31 Katzer, Grundz. d. Geol. d. unt. Amazonas, Leipzig, 1903, pi. 16, fig. 18a, b. Silurian: Rio Trombetas, Brazil. Bollia persulcata (Ulrich). Beyrichia persulcata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 12, pi. 7, fig. 6. Bollia persulcata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 116, figs. 3a-d. Beyrichia buchiana Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 16, pi. 3, fig. 25. Eden, Maysville, and Richmond: Cincinnati, Ohio, and vicinity. Holotype.Q&t. No. 41524, U.S.N.M. Bollia pumila Ulrich. Bollia pumila Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 117, pi. 12, figs, la, lb. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1042, pi. 53, figs. 12, 12a. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 351, figs. 1660z, z'. Richmond (Waynesville) : Weisberg, etc., Indiana; Waynesville, etc., Ohio. Holotype.Ga,t. No. 41691, U.S.N.M. Bollia regularis (Emmons). Beyrichia regularis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 219, fig. 74b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 91. fig. Bollia regularis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669 (gen. ref.). Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 288, figs. 12-14. Richmond (Arnheim): Waynesville, etc., Ohio; Indiana; Kentucky. Plesiotypts. Cat. No. 41516, U.S.N.M. Bollia semilunata Jones. Bollia semilunata Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 548, pi. 21, figs. 9, a, b. Richmond (Charleton and English Head): South of Junction Cliff, etc. Anti- costi. Bollia subaequata Ulrich. Bollia sub iequata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669, pi. 46, figs. 26-29. Trenton (Prosser): Cannon Falls, St. Paul, etc., Minnesota. Cotypes.Csit. Nos. 41519, 41520, U.S.N.M. 84243 Bull. 9215 9 130 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BOLLIA SYMMETRICA of authors. See Kloedenella symmetrica. BOLLIA TYPA Miller. See Dilobella typa. Bollia unguloidea Ulrich. Bollia unguloidea Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669, pi. 46, figs. 23-25. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 351, fig. 1658, 10, 10'. Trenton (Prosser) : Goodhue County, Minnesota. BOREASTER Lambe. Genotype: B. lowi Lambe. Boreaster Lambe, Cruise of the Neptune in 1903-4, App. 4, 1906, p. 323. Boreaster lowi Lambe. Boreaster lowi Lambe, Cruise of the "Neptune" in 1903-4, App. 4, 1906, p. 323. Niagaran: Beechy Island, Lancaster Sound, Arctic America. BOTRYOCRINITES of authors. See Botryocrinus Angelin. BOTRTOCRINUS Angelin. Genotype: B. ramossissimus Angelin. Botryocrinus Angelin, Icon. Crin. Suec., 1878, 24, pi. 20, fig. 8; pi. 23, fig. 14. Zittel, Handb. Pal., 1, 1879, p. 352. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 320 (Rev. Pal., pt. 1, p. 97); ibid., 1886, pp. 112, 115, 148 (Rev. Pal., pt. 3, sec. 2, pp. 188, 191, 224); ibid., 1890, p. 380. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 30; pi. 15, figs. 9, 13; 7, 1891, p. 392; Kongl. Sv. Vet.-Akad. Handl., 25, No. 2, 1893, p. 116, pi. 5, fig. 160; pi. 6, fig. 193; Nat. Science, 12, 1898, p. 342. teller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 65, fig. 34. Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 179, fig. 97. Springer, Amer. Geol., 26, 1900, p. 133. Bather, ibid., p. 308. Wachsmuth, Zittel- Eastman Textb. Pal., 1, 1900, p. 157. Zittel, Grundzuge Pal., 1, 1910, p. 154. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 506. Botryocrinites Bather, Kongl. Sv. Vet.-Akad. Handl., 25, No. 2, 1893, pp. 114, 119, fig. 17. Sicyocrinus Angelin, Icon. Crin. Suec., 1879, p. 23, pi. 4, fig. 9; pi. 16, fig. 5. Wachsmuth and Springer, Rev. Pal., 1, 1879, pp. 62, 99. Zittel, Handb. Pal., 1, 1879, p. 352. Botryocrinus nucleus (Hall). Dendrocrinus nucleus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 15, figs. 7-9. Cyathocrinus nucleus Hall, ibid., mus. ed., 1879, p. 136, pi. 15, figs. 7-9; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 265, pi. 14, figs. 7-9. Homocrinus nucleus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- phia, 1886, p. 144 (Rev. Pal., 3, sec. 2, p. 220). Botryocrinus nucleus Bather, Crinoidea 'Gotland, 1893, p. 104. Niagaran (Waldron): Waldron, Indiana. Botryocrinus polyxo (Hall). Cyathocrinus polyxo Hall, Trans. Albany Institute, 4, 1863, p. 199; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 15, figs. 10-17; mus. ed., p. 135, pi. 15, figs. 10-17. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 310 (Rev. Pal., 1, p. 87). Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 264, pi. 14, figs. 10-17. Homocrinus polyxo Wachsmuth and Springer, Proc. Acad. Nat. Sci, Philadelphia, 1886, p. 144 (Rev. Pal., pt. 1, p. 87). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 131 Botryocrinus polyxo Continued. Botryocrinua polyxo Bather, Crin. Gotland, 1893, p. 105. \Veller, Bull. Chica-o Acad Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 66, pi. 14, fig. 12. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 506. Niagaran: Waldron, Indiana (Waldron) ; Bridgeport, Illinois (Racine). BRACHIOSPONGIA Marsh. Genotypo: Sryphia digitata Owen. Brachiospongia Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 88. Hovey, Trans. Kansas Acad. Sci., 3, 1875, p. 10; reprint, 1896, p. 111. Roemer, Loth, geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p. 319. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, pp. 246, 247. Beecher, Mem. Pea- body Mus., Yale Univ., 2, 1889, pp. 1, 13. Miller, N. A. Geol. Pal., 1889, p. 155. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 66. Rauff, Palaeontographica, 40, 1894, p. 272. James, Amer. Nat., 29, 1895, p. 542, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 17. Brachiospongia digitata (Owen). Troost, Mem. Geol. Soc. France, 3, 1838, p. 95, pi. 11, figs. 8-10. Scyphia digitata Owen, 2d Rep. Geol. Surv. Kentucky, 1857, p. 111. Hovey, Trans. Kansas Acad. Sci., 3, 1875, p. 10; reprint, 1896, p. 111. Brachiospongia Lyonii Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 88. Brachiospongia Roemerana Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 88. Hovey, Trans. Kansas Acad. Sci., 3, 1875, p. 10, fig. 1; reprint, 1896, p. 112, fig. 1. Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p. 319, fig. 61. Brachiospongia hoveyi Marsh, Trans. Kansas Acad. Sci., 1874, p. 344. Brachiospongia digitata James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 248. Beecher, Mem. Peabody Mus., Yale University, 2, 1889, p. 19, figs. 1-4; pi. 1, figs. 1, 2; pi. 2, figs. 1-7; pi. 3, figs. 1, 2; pi. 4, figs. 1-8. Nettle- roth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 29, pi. 25, fig. 3; pi. 36, figs. 1, 2. Miller, N. A. Geol. Pal., 1889, p. 155, fig. 92. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 66, fig. 6. Rauff, Palseontographica, 40, 1894, p. 272, figs. 52-55. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 17, fig. 26. Trenton (Bigby): Near Bright's Mill, Franklin County, Kentucky; Davidson County, Tennessee. BRACHIOSPONGIA HOVEYI Marsh. See Brachiospongia digitata. Brachiospongia laevis Foerste. Brachiospongia sp. Beecher, Mem. Peabody Mus., 2, pt. 1, 1889, p. 19. Brachiospongia laevis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 300, pi. 8, fig. 2. Maysville (Mount Hope): Near Paint Lick, Madison County, Kentucky. BRACHIOSPONGIA LYONII Marsh. See Brachiospongia digitata. BRACHIOSPONGIA ROEMERANA Marsh. See Brachiospongia digitata. Brachiospongia tuberculata James. Brachiospongia tuberculata James, Palaeontologist, No. 4, 1879, p. 25. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 248; 14, pt. 1, 1891, p. 67. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, pi. 10, fig. 5. Richmond (Liberty): Seven miles west of Wilmington, Ohio. BRACHYASPIS Salter. Genotype: Isotelus rectifrons Portlock. Brachyaspis Salter, Mon. Brit. Tril., Pal. Soc., 1866, p. 148. Zittel, Handb. Pal., 2, 1885, p. 609. Koken, Die Leitfossilien, Leipzig, 1896, p. 28. Ray- mond, Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 115. 132 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Brachyaspis alacer (Billings). Asaphus alacer Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 26, fig. 9a. Brachyaspis alacer Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 119, pi. 2, fig. 3. Richmond (Charleton) and Gamachian: Charleton Point, etc., Anticosti. Brachyaspis altilis Raymond. Asaphus platycephalus Billings (not Stokes), Cat. Sil. Foss. Anticosti, 1866, pp. 24, 26, fig. 9b. Brachyaspis altilis Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 119,'pl. 2, figs. 4, 5; Bull. Victoria Mem. Mus., 1, 1913, p. 47, pi. 4, figs. 3, 7. Richmond (Charleton): English Head, Anticosti. Brachyaspis notans (Billings). Asaphus notans Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 24, fig. 8; p. 60. Brachyaspis notans Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 118, pi. 1, fig. 1. Richmond (English Head): English Head, Anticosti. Gamachian (Ellis Bay): Gamache Bay, Anticosti. BRACHYMERUS Shaler. See Anastrophia Hall. BRACHYMERUS REVERSUS Shaler. See Parastrophia reversa. BRACHYPRION Shaler. See Stropheodonta subgenus Brachyprion. BRACHYPRION VENTRICOSA Shaler. See Stropheodonta (Brachyprion) philomena. BROCKOCTSTIS Foerste. Genotype: Apiocystites tecumseth Billings. Brockocystis Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 468. Brockocystis clintonensis (Parks). Lepadocystis clintonensis Parks, Amer. Jour. Sci., 29, 1910, p. 404, figs. 1, 2. Brockocystis clintonensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 473. Upper Medinan (Cataract): Forks of Credit River, Ontario. Brockocystis huronensis (Billings). Apiocystites Huronensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 91, fig. 28. Schuchert, Smiths. Misc. Coll., 47, 1904, p. 212. Brockocystis huronensis Foerste, Bull. Sci. Lab. Denison Univ. , 17, 1914, p. 473. Upper Medinan (Cataract): Cabots Head, shore of Lake Huron, Canada. Brockocystis tecumseth (Billings). Apiocystites? Tecumseth Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada. 1866, p. 91. Schuchert, Smiths. Misc. Coll., 47. pt. 2, 1904, p. 211. Brockocystis tecumsethi Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 469. pi. 5, fig. 2. Upper Medinan (Cataract): Near South Bay, Manitoulin Island, Lake Huron. BROGGERIA Walcott. See Obolus subgenus Broggeria. BRONGNIARTIA Eaton. See Homalonotus Koenig. BRONGNIARTIA CARCINODEA Eaton. See Triarthrus becki. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 133 BRONONIARTIA ISOTELEA Eaton. See Isotelus gigas. BRONGNIARTIA PLATYCEPHALA Harlan. See Homalonotus delphinocephalus. BRONONIARTIA TRENTONENSIS Collie. See Homalonotua trentonensia. BRONTES Goldfuas. See Goldiua Dekoninck. BRONTEUS Goldfuss. See Goldiua Dekoninck. BRYOGRAPTUS Lapworth. Genotype: B. kjerulfi Lapworth. Bryograptus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 164. Tull- berg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 12. Hermann, Geol. Mag., dec. 3, 1886, p. 17. Lapworth, Trans. Royal Soc. Canada, 4th ser., 1887, p. 168. Nicholson and Marr, Geol. Mag., dec. 4, 2, 1895, pp. 530, 531, fig. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 265. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 583. Elles, Quart. Jour. Geol. Soc., London, 54, 1898, p. 472. Elles and Wood, Mon. Brit. Graptolites, Pal. Soc., 1902, p. 87. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 638, 639. BRYOGRAPTUS KJERULFI Matthew. See Staurograptus dichotomus. BR'YOGRAPTUS KJERULFI Ruedemann. See Bryograptus pusillus. Bryograptus lapworthi Ruedemann. Bryograptus n. sp., Ruedemann, Ann. Rep., New York State Pal., 1902, p. 556. Bryograptus lapworthi Ruedemann, Mem., New York State Mus., 7, pt. 1, 1904, pp. 639-641, pi. 5, figs. 1-12, fig. 47. Canadian (Deepkill, Tetragraptus zone): Deepkill, Rensselaer County, New York. BRYOGRAPTUS LENTUS Matthew. See Staurograptus dichotomus. BRYOGRAPTUS? MULTIRAMOSUS Gurley. See Dictyonema flabelliforme. BRYOGRAPTUS PATENS Matthew. See Staurograptus dichotomus. Bryograptus pusillus Ruedemann. Brygraptus Kjerulfi Ruedemann (not Lapworth), Ann. Rep. New York State Pal., 1902, p. 556. Bryograptus pusillus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 641, 642, pi. 4, figs. 21, 22. Canadian (Deepkill, Tetragraptus zone): Deepkill, Rensselaer County, New York. Bryograptus spinosus Matthew. Bryograptus spinosus Matthew, Trans. New York Acad. Sci., 14, 1895, p. 269, pi. 48, figs. 3a, b. Gurley, Jour. Geol., 4, 1896, p. 93. Ruedemann, Bull. New York State Mus., 69, 1903, p. 938 (loc. occ.). Canadian (Bretonian-Div. C 3c): St. John, New Brunswick. Observation. Possibly the same as Staurograptus dichotomus Emmona. BUCANELLA Meek. Genotype: B. nana Meek. Bucanella Meek, Proc. Amer. Phil. Soc., 11, 1870, p. 426. Miller, N. A. Geol. Pal., 1889, p. 298. Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band 6, 1889, p. 390. Bucaniella Koken, Die Leitfossilien, Leipzig, 1896, pp. 100, 392, 558; Neues Jahrb. f. Min., Geol. Pal., 1. 1896, pp. 6, 10. Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 36. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 612. 134 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. BUCANELLA Koken (part). See Kokenospira Bassler, and Tetranota Ulrich and Scofield. Bucanella nana Meek. Bucanella nana Meek, Proc. Amer. Phil. Soc., 11, 1870, p. 426. Lower Ordovician: Crater's Falls, Colorado. Bucanella trilobata (Conrad). Planorbis trilobatus Conrad, Ann. Rep. New York State Geol. Surv., 1838, p. 113. Bellerophon trilobatus Hall, Geol. Rep. 4th Dist. New York, 1843, p. 48, figs. 6, 7; pi. 2, figs. 6, 7. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 88, figs. Bucania trilobatus Hall, Pal. New York, 2, 1852, p. 13, pi. 4 (bis), figs. 5a, b, and part of 3d; p. 93, pi. 28, figs. lOa, b. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 822, fig. 624. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 5, figs. 6, 7. Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 103, pi. 8, figs. 33a, b. Grabau, Bull. New York State Mus., 45, 1901, p. 213, fig. 144. Bellerophon (Bucania) trilobatus Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 549, pi. 27, figs. 33a, b. Bucaniella trilobata Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 36 (gen. ref.). Upper Medinan and Clinton: Lockport, Medina, etc., New York; Ontario; Arisaig, Nova Scotia. Bucanella trilobata viromundo (Clarke). Bucaniella trilobata var. viro-mundo Clarke, Archivos Mus. Nac. Rio de Janeiro, author's Eng. ed., 1900, p. 18, pi. 2, figs. 20-22. Silurian: Rio Trombetas, Brazil. BUCANIA (part) of authors. See Tetranota Ulrich and Scofield, Salpingostoma Roe- mer, and Bucanopsis Ulrich. BUCANIA Hall. Genotype: Bellerophon sulcatinus Emmons. Bucania Hall, Pal. New York, 1, 1847, p. 32. Vern^uil, Bull. Soc. Geol. France, 2d ser., 5, 1848, p. 376, footnote. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 66; 14th Rep., 1861, p. 93. Meek, Proc. Chicago Soc. Xat. Hist., 1, 1866, p. 11. Miller, Cincinnati Quart. Jour. Sci., 1874, p. 307. Hall, Pal. New York, 5, pt. 2, 1879, p. 121. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1880, 1, p. 130, 150. Zittel, Handb. Pal.. 2, 1882, p. 184. Koninck, Ann. d. Mus. Royal d'Hist. Nat. de Belgique, 8, 1883, p". 148. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 159. Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 6, 1889, pp. 379, 385. Miller, N. A. Geol. Pal., 1889, p. 398. Barrois, Ann. Soc. Geol. du Nord, 19, Lille, 1891, p. 216. Koken, Die Leitfossilien, Leipzig, 1896, p. 100, text fig. 78, fig. 1; Bull. 1'Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 120. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 850. Koken, Xeues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 6. Clarke, Archivos Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900, p. 35. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 213; Bull. New York State Mus., 45, 1901, p. 213. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 52. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 948. Grabau and Shimer, N. A. Index Fossils, 3, 1909, p. 613. Ball, Zittel - Eastman Textb. Pal., 2d ed., 1913, p. 521. BUCANIA ANGUSTATA Hall. See Tremanotus angustata. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 135 Bucania bellapuncta Hall. Bucania bellapuncta Hall, Pal. New York, 2, 1852, p. 93, pi. 28, fig. 9. Lower Clinton: Walcott, New York. BUCANIA (BELLEROPHON) BIDORSATA Hall. See Tetranota bidorsata. BUCANIA BUELLI Whitfield. See Salpingostoma buelli. BUCANIA (TREMANOTUS) BUELLI Whitfield. See Salpingostoma buelli BUCANIA CATILLOIDES Raymond. See Oxydiscus catilloides. BUCANIA CHAMPLAINENSIS Whitfield. See Bucania sulcatina. MIA CHICAGOENSIS McChesney. See Tremanotus cliicagoensis. vNiA COSTATUS Miller. See Dyeria costata. Bucania crassa Ulrich. Bucania crassa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 893, pi. 67, figs. 46-48. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 955, pi. 39, figs. 4-4b. Richmond (Elkhorn): Near Richmond, Indiana. Holotype.Csit. No. 45714, U.S.N.M. BUCANIA CRASSOLARE McChesney. See Tremanotus crassolaris. Bucania cyclostoina Calvin. Bucania cyclostoma Calvin, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, 1890, p. 181, pi. 1, figs. 2a, b. Niagaran: Maquoketa, Iowa. Bucania elliptica Ulrich and Scofield. Bucania elliptica Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 888, pi. 66, figs. 11 and 12. Trenton (Prosser): Near Cannon Falls, Minnesota. Holotype.Cat. No. 45715, U.S.N.M. Bucania emmonsi Ulrich and Scofield. Bucania emmonsi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 887, pi. 66, figs. 1-3. Black River (Platteville): Cannon Falls and Fountain, Minnesota. Stones River (Murfreesboro): Murfreesboro, Tennessee. Cotypes.Czt. Nos. 46049, 46050, U.S.N.M. Bucania euomphaloides Owen. Not recognized. Bucania euomphaloides Owen, Geol. Surv. Indiana, 1862, p. 362, fig. 3. Silurian: Locality not given. Bucania exigua Foerste. Bucania exigua Foerste, Bull. Sci. Lab. Denison Univ., 1, 1884, p. 99, pi. 13, figs. 18a-d.. Bellerophon (Bucania) exigua Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 288, pi. 6, fig. 3; Geol. Surv. Ohio, Pal., 7, 1893, p. 548, pi. 25, figs. 18a-b; pi. 31, fig. 3; pi. 37A, figs. 2a-c. Bellerophon exiguus Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 619. Savage, Bull. Illinois Geol. Surv., 23, 1913, p. 99, pi. 6, fig. 6. Upper Medinan: Dayton and Todds Fork, Ohio; Hanover, Indiana (Brassfield); Pike County, Missouri (Edgewood). BUCANIA EXPANSA Hall. See Salpingostoma expansa. 136 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bucania fiscellostriata (Foerste). Bellerophon fiscello-striatus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 99, pi. 13, figs. 19a-d; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 287; Geol. Surv. Ohio, Pal., 7, 1893, p. 548, pi. 25, figs. 19a-e. Upper Medinan (Brassfield) : Near Dayton, Ohio. Bucania frankfortensis Ulrich. ^ Bucania frankfortensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 891, pi. 66, figs. 30-33. Trenton (Cynthiana): Frankfort, Kentucky. Holotype.Cat. No. 45716, TJ.S.N.M. Bucania halli Ulrich and Scofield. Bucania halli Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 886, pi. 66, figs. 4-8. Orabau and Shimer, N. A. Index Fossils, 1, 1909, p. 614, fig. 822. Black River: Cannon Falls, Minnesota (Platteville) ; Lincoln County, Missouri (Auburn); Mercer County, Kentucky (Lowville). Cotypes.Csit. Nos. 45717, 45718, U.S.N.M. BUCANIA IMBRICATA Miller. See Salpingostoma imbricata. Bucania intexta Hall. Bucania intexta Hall, Pal. New York, 1, 1847, p. 217, pi. 33, figs. 4a-d. Bellerophon intextus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 166. Trenton: Near Watertown, New York. Bucania lindsleyi (Safford). Bellerophon lindsleyi Safford, Geol. Tennessee, 1869, pi. 3 (G), figs. 3a, b, d, e. Bucania lindsleyi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 889, pi. 66, figs. 24 and 25. Trenton: Dekalb County, Tennessee (Catheys): Near Cannon Falls, Minnesota (Prosser). Holotype.Csit. No. 45719, U.S.N.M. Bucania micronema Ulrich. Bucania micronema Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 892, pi. 66, figs. 26-29. Trenton (Flanagan) : Danville, Kentucky. HolotypeCsit. No. 45720, U.S.N.M. Bucania minnesotensis Ulrich and Scofield. Bucania minnesotensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pi. 66, figs. 9 and 10. Black River (Platteville) : Goodhue County, Minnesota. Holotype.Cai. No. 45721, U.S.N.M. Bucania nana Ulrich. Bucania nana Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 895, pi. 66, figs. 41-44. Trenton: Near Burgin (Flanagan) and Covington, Kentucky. Cotypes.C&t. No. 45722, U.S.N.M. Bucania nana subpatula Ulrich. Bucania nana var. subpatula Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 896, pi. 66, figs. 45, 46. Trenton: Near Burgin (Flanagan) and Covington, Kentucky. Holotype.C&t. No. 45723, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 137 Bucania nashvillensls Ulrich. Bucania nashvillensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 890, pi. 66, figs. 36-40. Trenton (Catheys): Dekalb County and Nashville, Tennessee. Colypes.CzL Nos. 45724, 45725, U.S.N.M. BUCANIA OBSOLETA Miller. See Tetranota obsoleta. Bucania operta (Foerste). Bellerophon (Bucania) opertus Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 548, pi. 25, figs. 18c-d; pi. 37A, figs. 3a, b. Upper Medinan (Brassfield) : Near Dayton, Ohio, and Hanover, Indiana. Bucania peracuta Ulrich. Bucania peracuta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 896, pi. 66, figs. 34, 35. Trenton (Catheys): Dekalb County, Tennessee. ffolotype.Cat. No. 45726, U.S.N.M. Bucania perornata Calvin. Bucania perornata Calvin, Bull. Lab. Nat. Hist., State Univ. Iowa, 1, 1890, p. 180, pl.3, figs. 3a, b. Niagaran: Maquoketa, Iowa. BUCANIA PERVOLUTA McChesney. See Tremanotus pervolutus. BUCANIA PUNCTATA Lincklaen. See Bucania punctifrons. Bucania punctifrons (Emmons). Bellerophon punctifrons Emmons, Geol. Rep. 2d Dist. New York, 1842, p. 392, fig. 5. Owen, Amer. Jour. Sci. and Arts, 47, 1844, p. 369, fig. 5. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 165, pi. 12, figs, lla, 12; Manual Geol., 1860, p. 98, fig. 87. Lesley, Geol. Surv. Pennsylvania, Rep. P. 4, 1889, p. 87, figs. Bucania punctifrons Hall, Pal. New York, 1, 1847, p. 187. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 894, pi. 67, figs. 41-44. Raymond, Bull. Amer. Pal., 3, 1902, pi. 19, figs. 9, 10. Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 177, pi. 12, figs. 10-12. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 614. Bucania punctata Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 2, fig. 5. Retepora foliacea Hall, Pal. New York, 1, 1847, p. 78, pi. 26, figs. 9a, b. Trenton: Middleville, Watertown, etc., New York; Canada; Central Tennessee; New Jersey. Plesiotypes.Czt. No. 45727, U.S.N.M. (Ulrich and Scofield). BUCANIA RICHMONDENSIS Miller. See Salpingostoma richmondensis. BUCANIA ROTUNDATA Hall. See Bucania sulcatina. Bucania rugatina Ulrich. Bucania rugatina Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 890, pi. 66, figs. 13-15. Trenton (Flanagan): Near Burgin, Kentucky. Holotype.Czt. No. 45728, U.S.N.M. BUCANIA RUGOSA Lesley. See Bellerophon rugosa. BUCANIA SCULPTILIS Miller. See Salpingostoma sculp tilis. 138 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bucania slmulatrix Ulrich. Bucania simulatrix Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 892, pi. 63, figs. 48, 49; pi. 67, fig. 45. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 955, pi. 42, figs. 9, 9a. Richmond (Whitewater) : Richmond, Indiana. Bucania singularis Ulrich. Bucania singularis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 894, pi. 66, fig. 47. Trenton (Catheys) : Nashville, Tennessee. Holotype: Cat. No. 45730, U.S.N.M. BUCANIA STIGMOSA Whiteaves. See Bellerophon shelbiensis. Bucania stigmosa Hall. Bucania stigmosa Hall, Pal. New York, 2, 1852, p. 92, pi. 28, figs. 8a-e. Lower Clinton: Lockport, New York. Bucania subangulata Ulrich. Bucania subangulata Ulrich, Geol. Minnesota, 3, pt, 2, 1897, p. 891, pi. 66, figs. 20-23. Trenton (Flanagan): Mercer and Boyle Counties, Kentucky. Cotypes. Cat. No. 45731, U.S.N.M. Bucania sublata Ulrich and Scofield. Bucania sublata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 888, pi. 66, figs. 16-19. Trenton: Near Burgin, Kentucky (Flanagan); Wykoi'f, Minnesota (Prosser). Black River (Dec?rah): Near Fountain and Minneapolis, Minnesota. . Nos. 45732, 45733, U.S.N.M. Bucania sulcatina (Emmons). Bellerophon sulcatinus Emmons, Geol. Nat. Hist. New York, 2, 1842, p. 312, fig. 4.__o we n, Amer. Jour. Sci., 47, 1844, p. 358, fig. 4, p. 359. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 165, pi. 4, fig. 4; Manual Geol., 1860, p. 93, fig. 78 only. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 146, fig. 96a, b. Bellerophon (Bucania) sulcatinus Salter, Quart. Jour. Geol. Soc. London, 1854, 10, p. 74. Bucania sulcatina Hall, Pal. New York, 1, 1847, p. 32, pi. 6, figs. 10, lOa; pi. 33, fig. 4d. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 1, figs. 4, 5. Waagen, Pal. Indica, 13th ser., pt. 2, 1880, p. 131. Miller, N. A. Geol. Pal. 1889, p. 398, fig. 656. Koken, Neues Jahrb. f. Min., Geol. Pal., Beibge-Band 6, 1889, p. 379. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 97, figs. Whiteaves, Canadian Rec. Sci., 5, 1893, p. 322 (loc. occ.). Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 850, 883. Koken, Neues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 9. Raymond, Ann. Carnegie Mus., 4, 1908, p. 194, pi. 49, figs, 15-17; pi. 50, figs. 3, 4; pi. 55, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 613, figs. 820, 821. Bucania rotundata Hall, Pal. New York, 1, 1847, p. 33, pi. 6, figs, lla-c. Bellerophon rotundatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 165. Megalomphala? rotundata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 850 (gen. ref.). Bucania champlainensis Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 181, pi. 4, figs. 14-16. Raymond, Bull. Amer. Pal., 3, 1902, p. 305, pi. 18, figs. 7, 8. Chazyan (Day Point- Valcour) : Chazy, Plattsburgh, etc., New York; Vermont- East Tennessee; Isle La Motte, Vermont. Middle Stones River: Chambersburg, Pennsylvania, etc. Plesiotypes Cat. No. 53635, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 139 BUCANIA TRIGONOSTOMA Whitfield. See Tremanotus? trigonostoma. BUCANIA TRILOBATA Clarke. See Bucanella trilobata. Bucania tripla Whitfield. Bucania tripla Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 55, pi. 9, figs. 12, 13. Seely, Rep. State Geol. Vermont, 7, 1910, pi. 60, fig. 7. Canadian (Beekmantown) : Providence Island, Lake Champlain. BUCANIELLA Kokeii. See Bucanella Meek. BUCANOPSIS Ulrich. Genotype: B. carinifera Ulrich. Bellerophon (part)of authors prior to 1884. Bucania (part) Waagen, Pal. Indica, 13th ser., pt. 2, 1880, pp. 130 and 150. Koken, N. Jahrb. f. Min., etc., Beilage Band, 6, 1889, p. 379. Bucanopsis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, pp. 853-922. Grabau and Shimer, N. A. Index Fossils, 3, 1909, p. 622. Bucanopsis carinifera Ulrich. Bucanopsis carinifera Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 925, pi. 62, figs. 56-61. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 622, fig. 836. Trenton (Flanagan): Near Danville, Kentucky; Maysville (Fairmount); Cin- cinnati, Ohio, and vicinity. Cotypes.CaA. No. 45734, U.S.N.M. BUCANOSPIRA Ulrich. Genotype: B. expansa Ulrich. Bucanospira Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044. Bucanospira expansa Ulrich. Bucanospira expansa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044, figs. 9a-c. Niagaran (Brownsport) : Wayne County, Tennessee. Cotypea.C&t. No. 45735, U.S.N.M. . BUMASTUS Murchison. Genotype: B. barriensis Murchison. Bumastus Murchison, Sil. Syst., 1839, p. 656. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 540, 552. Salter, Mem. Geol. Surv. United Kingdom, dec. 2, 1849, pis. 3, 4. McCoy, Ann. Mag. Nat, Hist., 2d ser., 4, 1849, p. 399. Salter, Mon. British Tril., Pal. Soc., 1867, p. 183. Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874, p. 52. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 40. Holm, Bihang K. Svenska Vet.-Hand., 7, 1882, pp. 12, 16. Zittel, Handb. Pal., 2, Munich, 1885, p. 612. Holm, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1886, pp. 18, 21, 42. Koken, Die Leitfossilien, Leipzig, 1896, p. 28. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 26, 45. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 297. Slocom, Field Mus. Nat. Hist., Geol. Ser. 4, 1913, p. 54. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 720. Bumastus armatus (Hall). Illsenus armatus Hall, adv. sheets, 18th Rep. New York State Cab. Nat. Hist., 1805, p. 26, figs. 3, 4; 20th Rep. 1867, p. 330, pi. 22, figs. 1-3, figs. 3-4; (rev. ed.), 1870, p. 418, figs. 8, 9, pi. 22, figs. 1-3, pi. 25, fig. 22; also p. 433; 28th Rep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 32, figs. 19-20; 1879, Mus. ed., p. 189, pi. 32, figs. 19, 20; llth Rep. Dep. Geol. and Nat. Hist. Indiana, 1882, p. 335, pi. 34, figs. 19-20, pi. 33, fig. 12. Kindle and Breger 28th Rep., ibid., 1904, p. 479, pi. 22, fig. 6. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 222, pi. 18, figs. 4-6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 297, fig. 1609. 140 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bumastus armatus Continued. Illaenus (Bumastus) armatus Salter, Mon. Brit. Tril., Pal. Soc., 1867, p. 209, fig. 54. Illsenus (Bumastus) worthenanus Winchell and Marcy, Mem.. Boston Soc. Nat. Hist., 1, 1865, p. 105, 109. Niagaran: Bridgeport, Illinois; Racine, etc., Wisconsin (Racine); Waldron, Indiana (Waldron); Georgetown and Wabash, Indiana. BUMASTUS BARRIENSIS Hall. See Bumastus ioxus. Bumastus beckeri Slocom. Bumastus beckeri Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 54, pi. 14, figs. 1-4. Richmond (Maquoketa): Clennont, Iowa. Bumastus bellevillensis Raymond and Narraway. Bumastus bellevillensis Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 253, pi. 61, figs. 6, 7. Trenton: Belleville, Canada. Bumastus billingsi Raymond and Narraway. Cf. Bumastus trentonensis Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 290, fig. 1. Cf. Illsenus trentonensis Hall, Pal. New York, 1, 1847, p. 230, pi. 60, fig. 5. Cf. Bumastus orbicaudatus Clarke, Geol. Minnesota, 3, 1897, p. 722, fig. 36. Bumastus billingsi Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 250, pi. 61, figs. 1, 2. Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 34, pi. 3, fig. 12. Trenton: Hull, Quebec, and vicinity. Observation. See Raymond and Narraway (1908) for a discussion of the syn- onyms of this species. Bumastus chicagoensis (Weller). Illsenus chicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 220, pi. 16, figs. 10-12. Niagaran (Racine): Bridgeport, Illinois. Bumastus cuniculus (Hall). Illsenus cuniculus Hall, 20th Rep. New York State Cab. Nat. Hist, 1868, p. 377, pi. 22, fig. 12; rev. ed., 1870, p. 421, pi. 22, fig. 12. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 219, pi. 19, figs. 1-6. Niagaran (Racine): Hawthorne, Illinois; Wauwatosa, Wisconsin. Bumastus elongatus Weller. Bumastus elongatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi. 14, fig. 15. Trenton: Near Springdale, New Jersey. Bumastus erastusi (Raymond). Illsenus erastusi Raymond, Ann. Carnegie Mus., 3, 1905, p. 351, pi. 13, figs. 8, 9. Bumastus erastusi Raymond, Ann. Carnegie Mus., 7, 1910, p. 71; 7th Rep. State Geol. Vermont, 1910, p. 229, pi. 35, figs. 8, 9. Illsenus crassicauda? Hall, Pal. New York, 1, 1847, p. 24, pi. 4 bis, fig. 13. Chazyan: Valcour Island and Chazy, New York; Isle La Motte, Vermont (Crown Point, Valcour); Mingan Islands, Canada (Mingan). Bumastus globosus (Billings). Illsenus globosus Billings, Canadian Nat. Geol., 4, 1859, p. 367, figs. 1-3; Geol. Canada, Geol. Surv. Canada, 1863, p. 133, figs. 64, a-c. Miller, N. A. Geol. Pal., 1889, p. 551, text figs. 1015-16. Raymond, Annals Carnegie Mus., 1905, p. 350, pi. 13, figs. 6, 7. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 294, figs. 1605, a. c. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 141 Bumastus globosus Continued. Bumastus globosus Raymond, Ann. Carnegie Mus., 7, 1910, p. 71, pi. 19, fig. 9; 7th Rep. State Geol. Vermont, 1910, p. 228, pi. 35, figs. 6, 7; pi. 39, fig. 9; Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 120, pi. 3, fig. 3. Chazyan: Mingan Islands (Mingan); Island of Montreal; Chazy, Valcour Island, Platteburg, and Crown Point, New York; Isle La Motte, Vermont (Day Point, Valcour); East Tennessee (Lenoir). Bumastus graftonensis (Meek and Worthen). Illsenus (Bumastus) graftonensis Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1870, p. 54; Geol. Surv. Illinois, 7, 1875, p. 508, pi. 25, fig. 4. Illsenus graftonensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 223, pi. 16, figs. 4-6. Keyes, Missouri Geol. Surv., 4, 1894, p. 226. Niagaran: Graf ton, Joliet, and near Lemont. Illinois (Racine). Bumastus harrisl (Weller). Illsenus harrisi Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 218, pi. 16, figs. 1-3. Niagaran (Racine): Bridgeport, Illinois. Bumastus Imperator (Hall). Illsenus imperator Hall, Rep. Prog. Geol. Surv. Wisconsin, 1861, p. 49; Geol. Surv. Wisconsin, 1, 1862, p. 433; adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1865, p. 28; 20th Rep., 1867, p. 332, pi. 22, figs. 15-17; pi. 23, figs. 2-3; rev. ed., 1870, p. 420, pi. 22, figs. 15-17; pi. 23, figs. 2-3. Whit- field, Geol. Wisconsin, 4, 1882, p. 306, pi. 21, figs. 4-5. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 225, pi. 16, figs. 13-16. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 297. Niagaran (Racine): Racine, Waukesha and Burlington, Wisconsin- Joliet, Illinois. Bumastus indeterniinatus (Walcott). Illsenus indeterminatus Walcott, 31st Rep. New York State Mus. Nat. Hist., 1879 (1880); adv. sheets 1877, pp. 19, 70. Illsenus cf. indetermmatus Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 716, fig. 24. Bumastus indeterminatus Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 253, pi. 62, figs. 8, 9. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 297. Black River: Russia, New York; Mechanicsville, Ontario; Tetreauville, Quebec (Lowville); Platteville and Janesville, Wisconsin (Platteville). Bumastus insignis (Hall). Illaenus insignis Hall, adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1865, p. 27, figs. 5, 6; 20th Rep., 1867, p. 331, figs. 5, 6; pi. 22, figs. 13, 14; rev. ed., 1870, p. 419, figs. 10, 11; pi. 22, figs. 13, 14. Whitfield, Geol. Wisconsin, 4, 1882, p. 305, pi. 21, figs. 6-10. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Foerste, 15th Ann. Rep. Geol. and Nat. Hist. Surv. Minnesota, 1887, p. 481. Keyes, Missouri Geol. Surv., 4, 1894, p. 227, pi. 32, figs. 1 a-b. Geol. Surv. Ohio, 7, 1895, p. 525, pi. 26, fig. 11. Kindle, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 479, pi. 22, figs. 1-5. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 215, pi. 17, figs. 1-5. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 296, fig. 1608. Illsenus (Bumastus) insignis Salter, Mon. Brit. Tril., Pal. Soc., 1867, p. 207, pi. 27, figs. 6, 7. Bumastus insignis Salter, Mon. Brit. Tril., Pal. Soc., 1867, p. 183 (gen. ref.). Niagaran: Waukesha, Milwaukee, Racine, etc., Wisconsin; Bridgeport, Illinois (Racine) : Ohio and Indiana. 142 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bumastus ioxus (Hall). Bumastus barriensis Hall (not Murchison), Geol. New York, pt. 4, 1843, p. 102, fig. 4; p. 101; tab. org. rem., 10, fig. 4, and 19, fig. 2. Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 309, fig..4. Verneuil, Amer. Jour. Sci. and Arts, 2d ser., 7, 1849, p. 225. Hall, Pal. New York, 2, 1852, p. 302, pi. 66, figs. 1-15. Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 83, pi. 5, fig. 23. Emmons, Man. Geol., 1860, p. 108, fig. 98. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 319, fig. 338. Miller, N. A. Geol. Pal., 1889, p. 536, fig. 981. Illsenus (Bumastus) barriensis? Hall, Geol. Surv. Wisconsin, 1, 1862, p. 433; adv. sheets, 18th Rep. New York State Cab. Nat. Hist,, 1865, p. 28; 20th Rep. 1867, p. 332. Illsenus barriensis Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 8, fig. 5. Hall, Trans. Albany Inst., 4, 1863, p. 227. Illsenus ioxus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 387, fig.; pi. 22, figs. 4-11; pi. 23, fig. 1; rev. ed., 1870, p. 420, fig. 12, pi. 22, figs. 4-10. Whitfield, Geol. Wisconsin, 4, 1882, p. 304, pi. 21, figs. 11, 12. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 299, figs. Foerste, Proc. Bost. Soc. Nat. Hist., 24, 1889, p. 268, pi. 5, fig. 20. Van Ingen, School of Mines Quart., 23, 1901, p. 35. Grabau, Bull. New York State Mus., 45, 1901, p. 223, fig. 154; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 223, fig. 154. Kindle, 28th Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 480, pi. 22, fig. 7; pi. 23, fig. 3. Weller, Bull. Chicago Acad. Sci., Nat. Hist, Surv., 4, pt. 2, 1907, p. 222, pi. .18, figs. 1-3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, figs. 1606, 1607. Illsenus (Bumastus) ioxus Hall, Trans. Albany Inst., 10, 1883, p. 76; llth Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 335, pi. 38, figs. 13, 14. Niagaran: Rochester, Lockport, etc., New York; Hamilton, etc., Ontario (Roches- ter); Waldron, Indiana (Waldron); Racine, etc., Wisconsin j Illinois (Racine); Cedarville, etc., Wisconsin (Guelph); Indiana; Arkansas; Ohio; etc. Bumastus limbatus Raymond. Bumastus limbatus Raymond, Ann. Carnegie Mus., 7, 1910, p. 71; 7th Rep. Ver- mont State Geol., 1910, p. 230, pi. 35, figs. 1. 2, Illsenus indeterminatus Raymond (not Walcott) Ann.. Carnegie Mus., 3, 1905, p. 347, pi. 13, figs. 1, 2. Chazyan (Valcour): Valcour Island, New York, and Isle La Motte, Vermont. Bumastus miller! (Billings). Cf. Illsenus trentonensis Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 390, fig. 3. Cf. Bumastus trentonensis Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 718, figs. 30-35. Weller, Pal. New Jersey, 3, 1902, p. 194, pi. 14, figs. 8-13. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 298, figs. 1610a, b. Illsenus milleri Billings, Canadian Nat. Geol., 4, 1859, p. 375, fig. 10; Geol. Canada, Geol. Surv. Canada, 1863, p. 151, fig. 112. Walcott, 31st Ann. Rep. New York State Mus. Nat. Hist., 1879, p. 71 (adv. sheets, 1877, p. 20). Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 249, pi. 61, figs. 9, 10; pi. 62, figs. 3-5. Grabau and Shimer j N. A. Index Fossils, 2, 1910, p. 297. Black River: Ottawa, etc., Ontario; New York; New Jersey; etc. Observation. See Raymond and Narraway (1908) for a discussion of this and related species. Bumastus niagarensis (Whitfield). Illsenus niagarensis Whitfield, Ann. Rep. Wisconsin Geol. Surv., 1880, p. 68. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 219, pi. 19, figs. 7-11. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 143 Bumastus iiiagarensis Continued. Bumastus niagarensis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 298. Illoenus madisonianus Whitfield, Geol. Wisconsin, 4, 1882, p. 307, pi. 20, figs. 8, 9. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 106, pi. 14, figs, la, Ib, 2a-2b; 2, 1887, p. 93 f pi. 8, figs. 8-10; Geol. Surv. Ohio, Pal., 7, 1893, p. 526, pi. 27, figs. 7-10. Van Ingen, School of Mines Quart., 23, 1901, p. 35. Illsenus madisonianus vars. elongatus and depressus Foerste, Geol. Surv. Ohio, 7, K93, p. 526, pi. 26, figs. 1, 2; pi. 27, figs. 7-10. Niagaran: Wisconsin and Illinois (Racine); St. Clair Springs, Arkansas (St. Glair); Dayton, Ohio (Brassfield). Bumastus orbicaudatus (Billings). Illsenus orbicauda Billings, Canadian Nat., 4, 1859, p. 379. Illaenus orbicaudatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 27, fig. 10; p. 60. Salter, Mon. Brit. Tril., Pal. Soc., 1867, p. 209. Richmond-Anticostian (English Head, Gun River) : English Head, Gamache Bay, etc., Anticosti. BUMASTUS ORBICAUDATUS Clarke. See Bumastus billingsi. Bumastus transversalis Weller. Bumastus transversalis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi. 14, fig. 14. Trenton: Hainesburg, New Jersey. imastus trentonensis Emmons. Bumastus trentonensis Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 390, fig. 1. Illaenus trentonensis Hall, Pal. New York, 1, 1847, p. 230, pi. 69, fig. 5. Trenton (drift): Hogansburg, New York. Observation. Type lost and figures not sufficient for accurate identification. See Raymond and Narraway (Annals Carnegie Mus., 4, 1908, p. 251) for a dis- cussian of this and related forms. lUTHOGRAPTUS Hall. Genotype: B. laxusHall. Buthograptus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 18; 20th Rep. New York State Cab. Hist., 1868, p. 218; rev. ed., 1870, p. 252. Nicholson, Mon. Brit. Grapt., 1872, p. 131. Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 563. Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 351 (Bytho- cladus, new name, suggested). Bythograptus Miller, N. A. Geol. Pal., 1889, p. 174. Buthograptus laxus Hall. Buthograptus laxus Hall, Rep. Sup. Geol. Surv. W T isconsin, 1861, p. 19; Geol. Surv. Canada, dec. 2, 1865, p. 18, fig. 25; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 185, fig. 27; rev. ed., 1870, p. 214, fig. 27. Nicholson, Mon. Brit. Graptol., 1872, p. 132, fig. 72. Chamberlin, Geol. Wisconsin, 1, 1883, p. 153, fig. Whitfield, Bull. Amer. Mus. Nat. Hist,, 6, 1894, p. 351, pi. 11, figs. 1-3; Mem. Amer. Mus. Nat. Hist,, 1, pt. 2, 1895, p. 40, pi. 4, figs. 1-3. Black River (Platteville) : Platteville, etc., Wisconsin. BUTHOTREPHIS Hall. Genotype: B. antlquata Hall. Buthotrephis Hall, Pal. New York, 1, 1847, p. 8. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 99. Nathorst, Ofvers K. Vet.-Akad. Forhandl., 30, No. 9, 1873, p. 46. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159. Bythotrephis Roemer, Leth. geog., 1, Theil. Leth. Pal., Erste Leif, 1880, p. 123. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 139. Grabau, Bull. Now York State Mus., 45, 1901, p. 130; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 130. Miller, N. A. Geol. Pal., 1889, p. 109. 144 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Buthotrephls antiquata Hall. Buthotrephis antiquata Hall, Pal. New York, 1, 1847, p. 8, pi. 2, fig. 6. Goeppert, Nov. Act. Acad. Caes. Leop. Car., 22, Suppl. (Uebergangsgeb.), 1852, p. 85. Quenstedt, Handb. Petrefaktenk. Tubingen, 3d ed., 1885, p. 1081, fig. 402. Lesley, Rep. Geol. Surv. Pennsylvania, P 4, 1889, p. 98, fig. Chazyan: Chazy, New York. Buthotrephis? caespitosa Hall. Buthotrephis? csespitosa Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 178, pi. 1, fig. la-c (doc. ed., p. 170). Trenton: Near Watertown, New York. Buthotrephis clavelloides (Grabau). Bythotrephis clavelloides Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 210, pi. 12, fig. 1. Cayugan (Akron): North Buffalo, New York. Buthotrephis divaricata White. Buthotrephis divaricata David White, Proc. U. S. Nat. Mus., 24, 1902, p. 265, pi. 16. Cayugan (Kokomo): Kokomo, Indiana. BUTHOTREPHIS FILICIFORMIS James. See Chloephycus filiciformis. BUTHOTREPHIS GRACILIS Hall (1847). See Buthotrephis tenuis. Buthotrephis gracilis (Hall). Fucoides gracilis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 69, fig. Buthotrephis gracilis Hall (not Hall, 1847), Pal. New York, 2, 1852, p. 18, pi. 5, figs, la-d. Rogers, Geol. Pennsylvania, 2, 1858, p. 822, fig. 625. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 137. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 574. Lesquereux, 13th Ann. Rep. Indiana Geol. Surv., 1883, p. 30, pi. 1, figs. 1, 6, 7. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 160, pi. 9, fig. 6. Lesley, Rep. Geol. Surv. Pennsylvania, P. 4, 1889, pp. 99, 100, figs. Bythotrephis gracilis Schimper, Pal. Veg., 1, 1869, p. 198. Grabau, Bull. New York State Mus., 45, 1901, pp. 130, 131, fig. 25; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 130, 131, fig. 25. Buthotrephis Hallii Humphreys, Bull. Torrey Botanical Club, 37, 1910, p. 309. Lithodendron dichotomum Eaton, Geol. Textb., 2d ed., 1882, p. 39, pi. 4, fig. 43. Clarke, llth Rep. State Geol. New York, 1894, p. 34. 45th Rep. New York State Mus., 1894, p. 350. Clinton: New Hartford, New York. This species has been identified in the Silurian at numerous American localities. Buthotrephis gracilis crassa Hall. Buthotrephis gracilis var. crassa Hall, Pal. New York, 2, 1852, p. 19, pi. 5, fig. 3a-d; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 221, pi. 1, fig. 6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 101, fig. Dendrograptus gracilis var. crassa James, Jour. Cincinnati Soc. Nat. Hist, 7, 1885, p. 159. Silurian: Oneida County, etc., New York (Clinton); Waldron, Indiana (Waldron); Ontario (Cataract), etc. Buthotrephis gracilis intermedia Hall. Buthotrephis gracilis var. intermedia Hall, Pal. New York, 2, 1852, p. 19, pi. 5, fig. 2a, b. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 145 Buthotrephls gracilis intermedia Continued. Dendrograptus gracillimum var. intermedia James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 161. Early Silurian: New Hartford, New York (Clinton); Ontario (Cataract), etc. BUTHOTREPHIS GRANTI Dawson. See Inocaulis grantii. Buthotrephis gregaria Ringueberg. Buthotrephis gregaria Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 131, pi. 7, fig. 1. Clinton (Rochester): Lockport, tfew York. BUTHOTREPHIS HALLII Humphreys. See Buthotrephis gracilis. Buthotrephis impudica Hall. Buthotrephis impudica Hall, Pal. New York, 2, 1852, p. 20, pi. 6, fig. 2. Clinton: New Hartford, New York. Buthotrephis lesquereuxi Grote and Pitt. Buthotrephis Lesquereuxi Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1876, p. 88. Pohlman, ibid., 4, 1881, p. 19, fig. 6. Bythotrephis lesquereuxi Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 131, fig. 26; Bull. New York State Mus., 45, 1901, p. 131, fig. 26. Cayugan (Akron) : Buffalo, New York. Buthotrephis newlini White. Buthotrephis newlini David White, Proc. U. S. Nat. Mus., 24, 1902, p. 266, pis. 17, 18. Cayugan (Kokomo): Kokomo, Indiana. Buthotrephis palmata Hall. Buthotrephis palmata Hall, Pal. New York, 2, 1852, p. 20, pi. 6, fig. 1; pi. 7, fig. la, b. Clinton: New Hartford, New York. Buthotrephis pergracilis Dawson. Buthotrephis pergracilis Dawson, Canadian Rec. Sci., 3, 1888, p. 55. Dawson. Trans. Royal Soc. Canada, 7, sec. 4, 1890, p. 54, fig. 27; 2d ser., 2, sec. 4, 1896, p. 120, fig. 32. Canadian? (Levis?) : Little Metis, Quebec. Buthotrephis ramosa Hall. Buthotrephis ramosa Hall, Pal. New York, 2, 1852, p. 21, pi. 6, fig. 3. Clinton: New Hartford, New York. Buthotrephis ramulosa Miller. Buthotrephis ramulosus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 235, fig. 29. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159. Bythotrephis ramulosus Miller, N. A. Geol. Pal., 1889, p. 109, fig. 19. Trenton (upper) or Eden (Fulton) : Cincinnati, Ohio, and vicinity. Buthotrephis subnodosa Hall. Buthotrephis subnodosa Hall, Pal. New York, 1, 1847, p. 262, pi. 68, figs. 3a, b. Goappert, Nov. Act. Acad. Caes. Leop. Car., 22, Suppl. (Uebergangsgeb.), 1852, p. 86. Utica-Pulaski: Turin, Loraine, and Pulaski, New York. 84243 Bull. 9215 10 146 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Buthotrephis succulens Hall. Buthotrephis succulens Hall, Pal. New York, 1, 1847, p. 62, pi. 22, figs. 2a, b. Chamberlin, Geol. Wisconsin, 1, 1883, p. 152, fig. 25. Buthotrephis succulosa James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159. Bythotrephis succulens Miller, N. A. Greol. Pal., 1889, p. 110. Licrophycus succulens Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 937 (gen. ref.). Trenton: Glens Falls, New York. BUTHOTREPHIS SUCCULOSA James. See Buthotrephis succulens. Buthotrephis tenuis (Hall). Buthotrephis gracilis Hall, Pal. New York, 1, 1847, p. 62, pi. 21, fig. 1. Nichol- son, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 7, fig. 1. Etheridge, Quart. Jour. Geol. Soc. London, 39, 1878, p. 574. Chamberlin, Geol. Wisconsin, 1, 1883, p. 152, fig. 26b. Buthotrephis conf. gracilis Emerson, Narrative Hall's Second Arctic Exped., U. S. Navy Dep., 1879, p. 575, fig. 1. Buthotrephis tenuis Hall, Pal. New York, 2, 1852, p. 18. Bythotrephis tenuis Chapman, Proc. Royal Soc. Victoria, 15, new ser., 1903, p. 104, pi. 16, fig. 1. Trenton: Jacksonburgh and Middleville, Herkimer County, New York. Buthotrephis yukonensis Ami. Bythotrephis yukonensis Ami., Canadian Geol. Surv., Summ. Rep. for 1904, 1905, p. 388. Lower Paleozoic?: Seven miles north Dalton's Post, Unihana River, Yukon district, Canada. BYSSONYCHIA Ulrich. Genotype: Ambonychia radiata Hall. Ambonychia (part) Hall, Pal. New York, 1, 1847, p. 163; 3, 1859, pp. 269 and 523; also of many American and European Authors. Byssonychia, Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 498; Geol. Surv. Ohio, 7, 1893, p. 629. Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 979. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431. Dall. Zittel-Eastman Textb. Pal., 1900, p. 368; 2d. ed., 1913, p. 445. Byssonychia acutirostris Ulrich. Byssonychia acutirostris Ulrich, Geol. Surv. Ohio, 7, 1893, p. 634, pi. 45, figs. 8, 9; pi. 46, fig. 10. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Holotype.Gzt. No. 46095 U.S.N.M. Byssonychia alveola ta Ulrich. Byssonychia alveolata, Ulrich, Geol. Surv. Ohio, 7, 1893, p. 631, pi. 48, figs. 1-3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 989, pi. 42, figs. 7, 7a. Maysville (Corryville): Cincinnati, Ohio; southeastern Indiana. Holotype.C&t. No. 46096, U.S.N.M. Byssonychia(?) byrnesi Ulrich. Byssonychia(?) byrnesi Ulrich, Geol. Surv. Ohio, 7, 1893, p. 635, pi. 47, figs. 4 and 5. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431, fig. 563. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 134, pi. 3, fig. 6. Trenton (Upper): Covington, Rogers Gap, etc., Kentucky; Tennessee. Cotypes. Cat. No. 46097, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES, 147 Byssonychia carinata (Goldfuss). Pterinea carinata Goldfuss, Petref. Germ., 1826, p. 136, pi. 119, fig. 8. Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 64, p. 65, fig. 1. Emmons, ibid., Geol., 2, 1842, p. 402, fig. 1. Owen, Amer. Jour. Sci. and Arts, 47, 1844, p. 376, fig. 1. Avicula carinata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 175, pi. 17, fig. 23. Ambonychia carinata Hall, Pal. New York, 1, 1847, p. 294, pi. 80, figs. 5a, b; Geol. Lake Sup. Land Dist., Foster and Whitney 's Rep., 1851, p. 215, pi. 31, fig. 3; Pal. New York, 3, 1861, p. 269. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 22, fig. Byssonychia carinata Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 324. Cincinnatian (Pulaski): Lewistown, Oneida County, New York. Byssonychia cultrata Ulrich. Byssonycliia cultrata, Ulrich, Geol. Surv. Ohio, 7, 1893, p. 632, pi. 45, figs. 5-7. Richmond (Waynesville): Waynesville, Ohio; Versailles, Indiana. Cotypes.Csit. Nos. 46098, 46596, U.S.N.M. Byssonychia grandis Ulrich. Byssonychia grandis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 631, pi. 46, figs. 6-9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 990, pi. 44, figs. 1, la. Richmond (Waynesville- Whitewater) : Oxford, Clarksville, etc., Ohio; Indiana. Cotypes.C&t. Nos. 46099, 46100, U.S.N.M. Byssonychia imbricata Ulrich. Byssonychia imbricata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 635, pi. 46, figs. . 4 and 5. Maysville (Corryville): Cincinnati, Ohio. Holotype.C&t. No. 46101, U.S.N.M. Byssonychia intermedia (Meek and Worthen). Ambonychia intermedia Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 306, pi. 2, fig. 5a, b. Byssonchia intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 499, pi. 35, figs. 23-26. Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 182. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 431, fig. 562a, b. Trenton: Mount Carroll, Illinois; Oshkosh, Wisconsin; Wykoff, Minnesota; Lake Winnepeg, Canada; Kentucky. Plesiotype.Czt. No. 46102, U.S.N.M. Byssonychia obesa Ulrich. Byssonychia obesa Ulrich, Geol. Surv. Ohio, 7, 1893, p. 630, pi. 45, figs. 10-12. Whiteaves, Pal. Foss., 2, Geol. Surv. Canada, 3, 1895, pt. 2, p. 122 (loc. occ.). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 991, pi. 42, figs. 8, 8b. Ambonychia obesa Miller, N. A. Geol. Pal., 1897, 2d App., p. 779 (gen. ref.). Richmond: Richmond, Indiana (Whitewater); Stony Mountain, Manitoba. Holotype.Cat. No. 46103, U.S.N.M. Byssonychia praecursa Ulrich. Byssonychia praecursa Ulrich, Geol. Surv. Ohio, 7, 1893, p. 633, pi. 45, figs. 1, 2. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 992, pi. 43, figs. 3, 3a. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432, fig. 565. Maysville: Lorraine, New York (Pulaski); Covington, Kentucky, and vicinity (Fairmount). Cotype. Cat. No. 46104, U.S.N.M. 148 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Byssonychia radiata (Hall). Ambonychia radiata Hall, Pat. New York, 1. 1847, p. 292, pi. 80, figs. 4a-l. Billings, Canadian Nar. Geol., 1, 1856, p. 44, fig. 7. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 8, fig.; p. 110, figs. 1, 2. Lincklaen. 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 4, fig. 7. Hall, Pal. New York, 3, 1861, p. 269, fig.; p. 523, figs. 1, 2. Chapman, Canadian Jour., n. s., 7, 1862, p. 166, fig. 110; ibid., 8, 1863, p. 206, fig. 205. Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 54, figs. 1, 2. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 215, fig. 219. Chapman, Expos, ^in. Geol. Canada, 1864, p. 120, fig. 110; p. 178, fig. 205. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 14, 15. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 35, fig. 11. Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 79, pi. 2, fig. 2. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 4, fig. 17. Zittel, Handb. Pal., 2, 1881. p. 35, fig. 42b. Chamberlin, Geol. Wisconsin, 1, 1883, p. 174, fig. Miller, N. A. Geol. Pal., 1889, p. 461, fig. 771. Lesley, Geol. Pennsyl- vania, Rep. P 4, 1889, p. 23, figs. Byssonychia radiata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 477, fig. 35VL Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 993, pi. 43, fig. 4. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432, fig. 562c, 566. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 14, fig. 7. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 273, pi. 3, figs. 12a-c. Maysville-Richmond : Turin, Lorraine, Pulaski, etc., New York, and Quebec (Pulaski); Ohio; Indiana; Kentucky; Virginia; Tennessee (Maysville and Richmond); Anticosti, etc., Canada. Pkswtype.Gzt. No. 46105, U.S.N.M. (Ulrich). Byssonychia retrorsa (Miller). Ambonychia retrorsa Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 104, pi. 3, fig. 6. Byssonychia retrorsa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 499 (gen. ref.). Maysville (Fairmount): Cincinnati, Ohio. Byssonychia richmondensis Ulrich. Ambonychia robusta Miller (part), Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 315. Byssonychia richmondensis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 632, pi. 45, figs. 3, 4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 994, pi. 44, figs. 2-2a. Richmond (Whitewater): Richmond, etc., Indiana. Holotype.C&t. No. 46106, U.S.N.M. Byssonychia robusta (Miller). Ambonychia robusta Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1881, p. 315, pi. 8, figs. 3, 3a. Byssonychia robusta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 499 (gen. ref.). Richmond (Whitewater): Osgood, Indiana. Byssonychia suberecta Ulrich. Byssonychia suberecta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 634, pi. 45, figs. 13- 15. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 995, pi. 44, figs. 3-3b. Richmond ( Waynes ville) : Waynesville, Ohio; Versailles, Indiana. Cotypes. Cat. No. 46107, U.S.N.M. Byssonychia tenuistriata Ulrich. Byssonychia tenuistriata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 500, fig. 39.- Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 996, pi. 43, figs. 5, 5a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 149 Byssonychla tenuistriata Continued. Ambonychia tenuistriata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. ref.). Richmond: Granger and Spring Valley, Minnesota (Maquoketa); Richmond, Indiana (Whitewater). Byssonychia vera Ulrich. Byesonychia vera Ulrich, Geol. Surv. Ohio, 7, 1893, p. 629, figs, a-c. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 134, pi. 1, fig. 15. Ambonychia bellistriata, Miller (not Hall, 1847), Cincinnati Quart. Jour. Sci., 1, 1874, p. 14. Byssonychia radiata (Hall) new var., Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 479, fig. 36V. Ambonychia cincinnatiensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 24, pi. 1, figs. 8-10. Eden: Cincinnati, Ohio, and vicinity. Trenton (Upper): Rogers Gap, etc., Kentucky. Cotypes. Cat. No. 46108, U.S.N.M. Byssonychia walkerensis Grabau. Byssonychia walkerensis Grabau, Bull. Geol. Soc. Amer., 24, 1913, p. 459. Maysville (Bays): Big Walker Mountain, Virginia. BYTHOCLADUS Whitfield. See Buthograptus Hall. BYTHOCYPRIS Brady. Genotype: B. renifonnis Brady. Bythocypris Brady, "Challenger" Exped. Rept. Ostracoda, 1880, p. 45. Jones and Kirkby, Ann. Mag. Nat. Hist., 5th ser., 18, 1886, p. 250; Proc. Geol. Assoc., 9, 1897, p. 510. Jones, Ann. Mag. Nat. Hist., 5th. ser., 19, 1887, p. 184. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 196. Miller, N. A. Geol. Pal., 1st App., 1892, p. 706. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 686; Zittel-Eastman Textb. Pal., 1, 1900, p. 646. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 365. Bassler, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 740. Bythocypris(?) curta Ulrich. Bythocypris (?) curta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 689, pi. 44, figs. 36-38. Black River (Decorah): St. Paul, Minnesota. nolotype.Czt. No. 41794, U.S.N.M. Bythocypris cylindrica (Hall). Leperditia (Isochilina) cylindrica Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 231, pi. 8, fig. 12 (Extract, 1871, p. 7, pi. 4, fig. 12). Hall and Whitfield, Geol. Surv. Ohio, Pal. 2, 1875, p. 101, pi. 4, fig. 5. Leperditia cylindrica Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 122; 2, 1875, p. 351. Bythocypris cylindrica Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 687, pi. 44, figs. 29-35, p. 688. Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2, 1889, p. 48, pi. 9, fig. 6. Ruedemann, Bull. New York State Mus., 49, 1901, p. 86, pi. 7, figs. 26, 28. Bythocypris (Cytherellina?) cylindrica Grabau and Shimer, N. A. Index Fos- sils, 2, 1910, p. 365, fig. 1666. Primitia minuta Jones (part), Quart. Jour. Geol. Soc. London, 46, 1890, p. 7, pi. 3, figs. 18, 19 (not figs. 21-23). Trenton to Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Tennessee; Minnesota; New York; Ontario, Manitoba; etc. Pleriotypes.C&t. Nos. 41795, 41796, U.S.N.M. 150 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bythocypris grant! Ulrich. Bythocypris grant! Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 689, pi. 44, figs. 39-42. Black River (Decorah): St. Paul and Minneapolis. Minnesota. Cotypes.C&t. No. 41793, U.S.N.M. Bythocypris? lindstroemi Jones. Bythocypris? Lindstroemii Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 548, pi. 21, figs, lla-c. Richmond (English Head and Charleton): South of Junction Cliff, Anticosti. Bythocypris nearpassi Weller. Bythocypris nearpassi Weller, Geol. Surv. Now Jersey, Pal. 3, 1903, p. 257, pi. 23, fig. 12. Helderbergian (Decker Ferry): Two miles south Tri-States, New York. Bythocypris? obtusa Jones. Bythocypris? obtusa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 549, pi. 21, figs. 4a, b. Richmond (English Head and Charleton): English Head, etc., Anticosti. Bythocypris punctulata arctata Ulrich and Bassler. Bythocypris punctulata var. arctata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 540, pi. 98, fig. 22. Helderbergian (Keyser): Cumberland, Maryland; Keyser, West Virginia. Holotype.C&t. No. 53290 U.S.N.M. Bythocypris punctulata niagarensis Ulrich. Bythocypris punctulata niagarensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 196. Clinton (Rochester): Lockport, New York. Holotype.Ca,t. No. 41797, U.S.N.M. Bythocypris(?) robusta Ulrich. Bythocypris (?) robusta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 690, figs. 52a-d. Bythocypris (?) (Cytherellina?) robusta Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 365, fig. 1667, 1, 1', m, n. Black River (Platteville) : Dixon, Illinois. Holotype.Czt. No. 41728, U.S.N.M. BYTHOPORA Miller and Dyer. Genotype: B. fruticosa Miller and Dyer=Helopora dendrina James. Bythopora Miller and Dyer, Contr. Pal., No. 2, 1878, p. 6. Miller, N. A. Geol. Pal., 1889, p. 295. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 376; Geol. Minne- sota, 3, 1893, p. 263; Zittel's Textb. Pal. (Eng. ed.), 1896, p. 277. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 551. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 32. Orabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 166; Bull. New York State Mus., 45, 1901, p. 166. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 133. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 741. Hennig, Archiv fur Zool., 4, No. 10, 1908, p. 44. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 240; Zittel- Eastman Textb. Pal., 1913, p. 335. Bythopora alcicornis Ulrich. Bythopora alcicornis Ulrich, Geol. Minnesota, 3, 1893, p. 264, pi. 26, figs. 7-9. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 551, fig. 121. Black River (Decorah): Near Cannon Falls, Minnesota. Cotypes.Ca,t. No. 43514, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 151 Bythopora arctipora (Nicholson). Ptilodictya? arctipora Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 180, pi. 14, figs. 4-4b; Pal. Ohio, 2, 1875, p. 262, pi. 25, figs. 9-9b. Lesley, Geol. Surv. Pennsylvania, Rep. P. 4, 1889, p. 825, figs. Bythopora arctipora Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 6. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 19, pi. 2, figs. 1, 2. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 780, pi. 8, fig. 8; pi. 2G, fig. 15, 15a. Chsetetes minutus James, Paleontologist, 3, 1879, p. 20 (see James and James, Jour. Cincinnati Soc. Nat. Hist., 10, p. 173). Eden: Cincinnati, Ohio, and vicinity. Bythopora delicatula (Nicholson). Chsetetes delicatulus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 505, pi. 29, figs. 8-8b; Pal. Ohio, 2, 1875, p. 199, pi. 21, figs. 9, 9a; Pal. Province Ontario, 1875, p. 30. Monticulipora delicatula James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 173. Miller, N. A. Geol. Pal., 1889, p. 197, fig. 196. Bythopora? delicatula Ulrich, Contr. Micro-Pal., Cambro-Sil., pt. 2, 1889, p. 36. Whiteaves, Pal. Foss., 3, 1895, p. 116. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 184. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 781, pi. 8, fig. 7; pi. 27, fig. 1. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 133. Richmond: Oxford, Waynesville, etc., Ohio; Richmond and other localities in Indiana; "Weston and Toronto, Ontario; Stony Mountain, Manitoba. Bythopora dendrina (James). Helopora dendrina James, Paleontologist, No. 1, 1878, p. 3; No. 2, p. 14. Bythopora dendrina Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 185. Bassler, Proc. U. S. Nat, Mus., 30, 1906, p. 20. Bythopora fruticosa Miller and Dyer, Contr. Pal., No. 2, 1878, p. 6, pi. 4, figs. 6, Ga. Miller, N. A. Geol. Pal., 1889, p. 295, fig. 461. Maysville (Fairmount) Cincinnati, Ohio, and vicinity. BYTHOPORA FRUTICOSA Miller and Dyer. See Bythopora dendrina. Bythopora gracilis (Nicholson). Chaetetes gracilis James, Cat. Low. Sil. Foss. Cincinnati Group, 1871, p. 3. Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 504, pi. 29, figs. 7, 7a; Pal. Ohio, 2, 1875, p. 198, pi. 21, figs. 8, 8b; Pal. Province Ontario, 1875, p. 11; Ann. Mag. Nat. Hist., 4th ser., 28, 1876, p. 90, pi. 5, fig. 13. Monticulipora (Heterotrypa) gracilis Nicholson, Genus Monticulipora, 1881, p. 125, pi. 2, figs. 1-lb, 20. Monticulipora gracilis Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 248, pi. 10, figs. 1-3; pi. 11, fig. 11. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 173. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 420, figs. James, Jour. Cincinnati Soc. Nat. Hist., 1894, 16, p. 191. Batostomella gracilis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 141; 6, 1883, p. 83; 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 103; Contr. Micro-Pal., Cambro-Sil., pt. 2, 1889, p. 35. Miller, N. A. Geol. Pal., 1889, p. 294, fig. 458. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 432, pi. 35, fig. 2. Homotrypella gracilis Ulrich, Geol. Minnesota, 3, 1893, p. 228. Whiteaves, Pal. Foss., 3, 1895, p. 115. Bythopora gracilis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 185. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 20. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 782, pi. 8, figs. 6, 6b; pi. 27. figs. 2,2a. 152 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Bythopora gracilis Continued. Oheetetes laeviramus Quenstedt, Rcehren-und Sternkorallen, 1881, p. 81, pi. 146, fig. 2b. Maysville: Cincinnati, Ohio, and vicinity; Kentucky; Indiana; Tennessee. Plesiotypes.Csit. No. 43408, U.S.N.M. (Ulrich). Bythopora herricki (Ulrich). Bythopora herricki Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 99; Geol. Minnesota, 3, 1893, p. 263, pi. 26, figs. 1-6. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 551, fig. 120. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 133, fig. 188e, 190e. Black River (Decorah): St. Paul, Minnesota, and vicinity. Cotypes.C&t. No. 43513, U. S.N.M. Bythopora meeki (James). Chsetetes meeki James, Paleontologist, No. 1, 1878, p. 1. Monticulipora (Chaetetes) meeki James, Paleontologist, No. 5, 1881, p. 35. Monticulipora gracilis var. meeki Nicholson, Genus Monticulipora, 1881, p. 127. Monticulipora meeki James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 174. J. F. James, ibid., 16, 1894, p. 192. Homotrypella meeki Ulrich, Geol. Minnesota, 3, 1893, p. 228. Bythopora meeki Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 185. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 21. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 783, pi. 8, figs, 5, 5a; pi. 27, fig. 5. Richmond: Waynesville and other localities in Ohio, Richmond, etc., Indiana; Kentucky. BYTHOPORA NASHVILLENSIS Miller. See Rhinidictya iiashvillensis. Bythopora parvula (James). Helopora parvula James, Paleontologist, No. 1, 1878, p. 3. Bythopora parvula Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 186. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 22, pi. 3, figs. 11, 12; pi. 5, fig. 4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 783, pi. 27, fig. 3. Eden (McMicken): Obanon Creek, Clermont County, Cincinnati, etc., Ohio; Indiana; Kentucky. Bythopora spinulosa (Hall). Trematopora spinulosa Hall, Pal. New York, 2, 1852, p. 155, pi. 40A, figs, lla-c. Bythopora spinulosa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 180. Grabau, Bull. New York State Mus., 45, 1901, p. 166, fig. 64; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 166, fig. 64. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29, pi. 13, figs. 6, 7; pi. 24, figs. 12, 13. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 134, fig. 189. Clinton (Rochester): Lockport, Rochester, etc., New York; Thorold, Hamilton, and Grimsby, Ontario. Plesiotypes.C&t. No. 35516, U.S.N.M. Bythopora striata Ulrich. Bythopora striata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 36. Whiteaves, Pal. Foss., 3, 1895, p. 116. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 784, pi. 27, fig. 4. Richmond: Stony Mountain, Manitoba (Stony Mountain); Anticosti (English Head); Ohio; Indiana; Kentucky (Arnheim and Waynesville). Cotypes. Cat. No. 44064, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 153 Bythopora subgracilis (Ulrich). Ilomotrypella? subgracilis Ulrich, Geol. Minnesota, 3, 1893, p. 230, pi. 26, figs. 10-16. Bythopora subgracilis Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 241, 242, figs. 135, 136. Black River (Decorah): Minneapolis, Minnesota, and vicinity. Ordovician (Wassalem) : Uxnorm, Esthonia, Russia. Cotypes and plesiotypes.Csit. Nos. 43558, 57314, U.S.N.M. BYTHOTREPHIS Roemer. See Buthotrephis Hall. BYTHOTRYPA Ulrich. See Favositella Etheridge and Foord. CACTOGRAPTUS Ruedemann. Genotype: C. crassus Ruedemann. Cactograptus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 196. Cactograptus crassus Ruedemann. Cactograptus crassus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 197, pi. 8, fig. 1, figs. 99-101. Upper Clinton: Clinton, Oneida County, New York. CALAMENA Eaton. See Calymene Brongniart. CALAMOPORA Goldfuss. See Favosites Lamarck. Calamopora cellulata Castelnau. Not recognized. Calamopora cellulata Castelnau, Syst. Sil. 1'Amer. Nord., 1843, p. 46. Silurian: Point Latour, Lake Huron. CALAMOPORA FAVOSA Goldfuss. See Favosites favosus. CALAMOPORA FIBROSA Eichwald. See Dianulites petropolitana. CALAMOPORA FIBROSA Roemer. See Hindia sphseroidalis. CALAMOPORA FORBESI var. DISCOIDEA Roemer. See Favosites discoidea. CALAMOPORA GOLDFUSSI Castelnau. See Favosites goldfussi. CALAMOPORA QOTHLANDICA Goldfuss. See Favosites gothlandica. CALAMOPORA MAXIMUS Troost. See Favosites maxima. Calamopora minuta Castelnau. Not recognized. Calamopora minuta Castelnau, Terr. Sil. de 1'Amer. du Nord, 1846, p. 46. Silurian: Drummond Island, Lake Huron, etc. Calamopora minutissima Castelnau. Not recognized. Calamopora minutissima Castelnau, Terr. -Sil. de 1'Amer. du Nord, 1843, p. 46, pi. 18, fig. Silurian: Drummond Island, Lake Huron. Calamopora radians Castelnau. Calamopora radians Castelnau, Terr.-Sil. de 1'Amer. Nord, 1843, p. 46, pi. 18, fig. 1. Silurian: Buffalo, New York. Observation. Not recognized. Figure represents basal side of some Favosites, probably a Devonian species. CALAMOPORA VENUSTA Rominger. See Favosites hisingeri. Calamopora verneuili Castelnau. Calamopora Verneuili Castelnau, Sil. Syst., 1843, p. 47. Ordovician: Near Quebec, Canada. Observation. Not recognized. Refers to some ramose trepostomatous bryo- zoan with monticules. 154 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CALAPlnd Proc. Belfast Nat. Field Club, 1, pt. 4, 1877, p. 139, pi. 6, fig. 38a. Whitfield, U. S. Geol. Surv. West 100th Merid., Wheeler's Rep. Pal., 4, 1877, p. 19. Lap worth, Quart. Jour. Geol. Soc. London, 34, 1878, p. 250. Linnarsson, Sver. Geol. Und., Ser. G, No. 31, 1879, p. 18. Lapworth, Ann. Mag. Nat. Hist., 6, 1880, p. 22. Tull- berg, Sver. Geol. Und., Ser. C, No. 41, 1880; No. 50, 1882, p. 20. Walcott, Trans. Albany Inst., 10, 1883, p. 3, (adv. sheets, 1879, p. 34). Whitfield, Amer. Jour. Sci., 3d ser., 26, 1883, p. 380. Lapworth, Trans. Roy. Soc. Canada, 4, 1887, 178f. Miller, N. A. Geol. Pal., 1889, p. 178, fig. 153. Ami, Rep. Canadian Geol. Surv., 2d ser., 3, pt. 2, 1889, p. 117K. Gurley, Ann. Rep. Geol. Surv. Arkansas, 3, 1892, p. 410. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1892, pt. 2, p. 159. Ami, Canadian Rec. Sci., 5, 1893, pp. 237, 239. Gurley, Jour. Geol., 4, 1896, p. 297. T. S. Hall, Proc. Roy. Soc. Victoria, 9, 1897, p. 184. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 148 (loc. occ.). Roemer and Freeh, Leth. Geog., 1 Theil, Letli. Pal., 1, 1897; pp. 610, 611, fig. 174. Freeh, Leth. Geog., 1 Theil, Leth. Pal., 1, 3 Lief, 1897, p. 553, fig. 131. T. S. Hall, Geol. Mag., n. s., dec. 4, 6, 1899, p. 445. Ruedemann, Bull. New York State Mus., 42, 1901, p. 496ff. Clark, Geol. Mag., 4th ser., 9, 1902, p. 498. T. S. Hall, Geol. Surv. Victoria, Rec., 1, pt. 1, 1902, p. 34. Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33. T. S. Hall, Proc. Roy. Soc. Victoria, 18, pt. 1, 1905, p. 21. Ami, Geol. Surv. Canada, Sum. Rep., 1904, p. 12. T. S. Hall, Geol. Surv. Victoria, Rec., 1, pt. 4, 1906, p. 275, pi. 34, fig. 8. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, figs. 50, 51a. Elles and W T ood, Mon. British Grapt., pt. 5, 1906, pp. 193, 194, fig. 126, pi. 26, fig. 8a-f. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 433-437, pi. 28, figs. 24-26, figs. 404, 405. Climacograptus bicornis var. peltifer Lapworth, Cat. West. Scotland Foss., 1876, p. 6, pi. 2, fig. 53; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt. 4, 1877, p. 139, pi. 6, fig. 38b. Gurley, Jour. Geol., 4, 1896, p. 93. Climacograptus bicornis var. tridentatus Lapworth, Cat. West Scotland Foss., 1876, p. 6, pi. 2, fig. 52; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt. 4, 1877, p. 139, pi. 6, fig. 38c. Gurley, Jour. Geol., 4, 1896, p. 93. Climacograptus bicornis var. tuberculatus Lapworth, Cat. West Scotland Foss., 1876, p. 6. Climacograptus bicornis var. longispina T. S. Hall, Geol. Surv. New South Wales, Rec., 7, pt. 2, 1902, p. 5, pi. 12, figs. 8, 9. Chazyan (Normanskill) : New York slate belt, north into Quebec and New Bruns- wick and south to Virginia and Alabama; Arkansas (Stringtown). Middle Ordovician: Great Britain, Scandinavia, Australia. [AcoGRAPTUS BICORNIS Hall (part). See Climacograptus parvus. CLIMACOGRAPTUS BICORNIS var. CAUDATUS Ami. See Climacograptus caudatus. CLIMACOGRAPTUS BICORNIS var. LONGISPINA Hall. See Climacograptus bicornis. CLIMACOGRAPTUS BICORNIS var. PELTIFER Lapworth. See Climacograptus bicornis. CLIMACOGRAPTUS BICORNIS var. TRIDENTATUS Lapworth. See Climacograptus bicornis. CLIMACOGRAPTUS BICORNIS TUBERCULATUS Nicholson. See Climacograptus bicornis. 23G BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CLIMACOGRAPTUS CLELATUS Lapworth. See Climacograptus antiquus. Climacograptus caudatus Lapworth. Climacograptus caudajps Lapworth, Cat. West. Scotland Foss., 1876, p. 6, pi. 2. fig. 48; Rep. and Proc. Belfast Field Club, 1, pt. 4, 1877, p. 138, pi. 6, fig. 34. Linnarsson, Sver. Geol. Und. Ser. C, No. 31, 1879, p. 18. Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 358; 6, p. 22. Tullberg, Sver. Geol. Und., Ser. C, No. 50, 1882, p. 20. Lapworth, Geol. Mag., 3d ser., 6, pi. 2, 1889. Gurley, Hour. Geol., 4, 1896, p. 297. Roemer and Freeh, Leth. Geog., Leth. Pal., 1, 1897, p. 614, fig. 179. Ruedemann, Bull. New York State Mus., 42, 1901, p. 520. Elles and Wood, Mon. British Grapt., pt. 5, 1906, p. 202, fig. 133; pi. 27, fig. 7. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 438, 439, pi. 28, figs. 17, 18, fig. 406. Climacograptus bicornis var. caudatus Ami, Canadian Geol. Surv. Rep., 2d ser., 3, pt. 2, 1889, p. 116K. Middle Ordovician shales: Great Britain and Scandinavia. Trenton: Magog, Quebec (Magog); Mechanics ville, New York (Snake Hill). Climacograptus caudatus laticaulis Gurley. Climacograptus caudatus laticaulis Gurley, Jour. Geol., 4, 1896, pp. 75, 93 (nom. nud.). Trenton (Magog): Magog, Quebec. Climacograptus caudatus posterus Ruedemann. Climacograptus caudatus mut. posterus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 51 (nom. nud.). Trenton shale of New York. Climacograptus kamptotheca Gurley. Climacograptus kamptotheca Gurley, Jour. Geol., 4, 1896, p. 76. Trenton (Magog): Magog, Quebec. Climacograptus mississippiensis Ruedemann. Climacograptus mississippiensis 'Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 413, 414, pi. 28, fig. 13, text fig. 367. Richmond (Sylvan): Arbuckle Mountains, Oklahoma. Holotype and paratype.C&t. No. 54268, U.S.N.M. Climacograptus modestus Ruedemann. Climacograptus modestus Ruedemann, Mem. New York State Mus., 11, 1908, pt. 2, pp. 432, 433, pi. 28, fig. 30, 400-103. Chazyan (Normanskill) : Mount Moreno, near Hudson, and Lansingburg, New York; Arkansas (Stringtown). Climacograptus oligotheca Gurley. Climacograptus oligotheca Gurley, Jour. Geol., 4, 1896, p. 76. Climacograptus cf. oligotheca Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 441, pi. 28, fig. 27. Trenton: Magog, Quebec (Magog); Arkansas. Plesiotype. Cat. No. 54264, U.S.N.M. Climacograptus parvus Hall. Climacograptus bicornis Hall, Pal. New York, 1, 1847, pi. 73, figs. 2e, k, o-s. Climacograptus parvus Hall, Canadian Org. Rem., dec. 2, 1865, p. 57 (nom. nud.); 20th Rep. New York State Cab. Nat. Hist., 1868, p. 224. Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879, p. 34); Bull. Geol. Soc. Amer., 1, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 237 Climacograptus parvus Continued. 1890, p. 339. Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 610. k Ruedemann, Bull. New York State Mus., 42, 1901, p. 523ff. Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33. Ruedemann, Mem. New York State Mus. 11, pt. 2, 1908, pp. 426-428, pi. 28, figs. 19-23, figs. 388-393. Climacograptus phyllophorus Gurley, Jour. Geol., 4, 1896, p. 77, pi. 4, figs. 4-6. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 212, pi. 16, figs. 14, 15. Chazyan (Normanskill) : Glenmont, Mount Moreno, Troy, etc., New York; New Jersey. CLIMACOGRAPTUS phyllophorus Gurley. See Climacograptus parvus. Climacograptus pungons Ruedemann. Climacograptus n. sp. Ruedemann, Ann. Rep. New York State Pal., 1902, p, 571. Climacograptus pungens Ruedemann Mem. New York State Mus., 7, pt. 1, 1904, p. 730, pi. 16, figs. 14-20. Canadian: Deepkill, and Mount Moreno, New York (Deepkill, Diplograptus dentatus zone); Point Levis, Quebec (Levis, D. dentatus zone). Climacograptus (Mesograptus) putlllus (Hall). Graptolithus putillus Hall, Geol. Surv. Canada, Org. Rem., dec. 2, 1865, pp. 27, 44, pl.A, figs. 10-12a. Graptolithus (Diplograptus) putillus Hall, 20th Ann. Rep. New York State Cab. Nat. Hist., 1868, pp. 195, 211, pi. 2, figs. 10-12a; rev. ed., 1868 (1870) pp. 224, 225, 226; pi. 2, figs. 10-12. Win chell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p 82, fig. 3. Diplograptus putillus Nicholson, Quart Jour. Geol. Soc. London, 24, 1868, p. 527, pi. 19, figs. 17, 18. Tullberg, Sver. Geol. Unders., Ser. C, No. 50, 1882, p. 43. Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879, p. 35). Lap- worth, Proc. and Trans. Roy. Soc. Can. ,4, 1886, p. 170. Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 339. Ami, Canadian Rec. Sci., 5, 1893, p. 244. Gurley, Jour. Geol., 4, 1896, p. 298. Winchell and Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 111. Ruedemann, Bull. New York State Mus., 42, 1901, p. 498. Nickles, Jour. Cincinnati Soc. Nat. Hist., 20, 1902, p. 68. Climacograptus putillus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 415-419, pi. 28, figs. 14, 15, text figs. 368-374, 376, 377. Diplograptus (Mesograptus) putillus Ruedemann, Bull. New York State Mus., 162, 1912, p. 80. Diplograptus teretiusculus var. putillus Roemer and Freeh, Leth. Pal., 1, 1896, p. 628. Trenton-Richmond: Maquoketa Creek, Iowa (Maquoketa); Canada; New York; Vermont; Ohio; Minnesota; etc. Plesiotype.C&t. No. 54272, U.S.N.M. Climacograptus (Mesograptus) putillus eximius Ruedemann. Cf. Diplograptus putillus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1886, pp. 170, 178ff. Diplograptus aff. putillus Ruedemann, Bull. New York State Mus., 42, 1901, p. 541. Climacograptus putillus mut. eximius Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 420, pi. 28, figs. 16, 378-384. Chazyan (Normanskill): Glenmont and Lansingburg, New York; Tartigo River, Cape Rouge, St. Lawrence region, Canada. Climacograptus scalaris annulatus Ruedemann. Climacograptus scalaris var. annulate Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 421, pi. 28, fig. 32, figs. 385-387. 238 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Climacograptus scalaris annulatus Continued. Boulder of Clinton (?) sandstone: Aroostook, Maine. Observation. For bibliography of C. scalaris which has not been found in America, see Ruedemann, op. cit., 1908, p. 421. Climacograptus scharenbergi Lapworth. Climacograptus scharenbergi Lapworth, Cat. West. Scot. Foss., 1876, p. 6, pi. s, fig. 35; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt. 4, 1877, p. 138, pi. 6, fig. 36. Linnarsson, Sver. Geol. Unders. Ser. C. No. 31, 1879, p. 18. Tullberg, ibid., No. 50, 1882, p. 214. Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 276; Proc. and Trans. Roy. Soc. Canada, 4, 1887, p. 180; Geol. Mag., 3d ser., 6, 1889, pi. 2. Tornquist, Sartr. Kongl. Fys. Sallsk. Lund. Handl., IV, 1893, p. 8, pi. 1, fig. 28. Gurley, Jour. Geol., 4, 1896, p. 298. Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 609, fig. 176. Elles Quart. Journ. Geol. Soc. Londoi, 54, 1898, p. 519. Ruedemann, Bull. New York State Mus., 42, 1901, p. 541ff, pi. 1, fig. 1; 49, p. 11, pi. 3, fig. 1. Clark, Geol. Mag., 4th ser., 9, 1902, p. 498. Elles and Wood, Mon. British Grapt., pt. 5, 1906, pp. 206, 207, fig. 139; pi. 27, fig. 14. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 428-431, pi. 28, fig. 31, figs. 394-399. Middle Ordovician slates: Great Britain and Scandinavia. Chazyan (Normar skill): New York; Canada; Tennessee; etc. Climacograptus spiniferus Ruedemann. Climacograptus typicalis mut. spinifer Ruedemaun, Mem. New York State Mus., 11, pfc. 2, 1908, pp. 411, 412, pi. 28, figs. 8, 9, fig. 236. Climacograptus spiniferus Ruedemann, Bull. New York State Mus., 162, 1912, p. 84. Trenton: Ballston, Saratoga, Sandy Hill., etc., New York (Canajoharie, Snake Hill, and Schenectady); Macasty Bay, Anticosti (Macasty). Martinsburg (base): Virginia, etc. Climacograptus typicalis Hall. Climacograptus typicalis Hall, Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 27, pi. A, figs. 1-9. Hall, 20th Ann. Rep., New York State Cab. Nat. Hist., rev. ed., 1868, p. 224, pi. 2, figs. 1-9. Zittel, Handb. Pal., 1, Munich, 1879, p. 292, fig. 197; p. 300, fig. 208 a-c. Walcott, Trais. Albany Inst, 5, 1883, p. 10 (Advance sheets, 1879, p. 34). Ulrich, Amer. Geology, 1, 1888, p. 183. -Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 339. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1892, p. 159. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 82, text, fig. 4. Gurley, Jour. Geol., 4, p. 298. Roemer a_id Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 612. Ruede- mann, Bull. New York State Mus., 42, 1901, p. 523. Ni.ckles, Jour. Cincin- nati Soc. Nat. Hist., 20, 1902, p. 68. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 407-411, pi. 28, figs. 6, 7, figs. 354, 356-358, 362. Climacograptus typicus Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, fig. 51 b. Trentoa-Edea: New York, Canada, Ohio, Minnesota, etc. Plesiolypes.Cat. No. 54276, U.S.N.M. Climacograptus typicalis magnificus Twenhofel. Climacograptus typicalis magnificus Twenhofel, Bull. Victoria Mem. Mus., 3, 1914, p. 23. Trenton (Macasty): Macasty Bay, Anticosti. CLIMACOGRAPTUS TYPICALIS SPINIFER Ruedemann. See Climacograptus spiniferus. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 239 CLIMACOGRAPTUS TYPICUS Grabau and Shimer. See Climacograptus typicalis. Climacograptus ulrichl Ruedemann. Climacograptus ulrichi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 412, 413, pi. 28, fig. 11. Richmond: Spencer, Missouri (Maquoketa); Oklahoma (Sylvan). Holotype and paratype.Csit. No. 54276, U.S.N.M. CLIM ACOSPONGIA Hinde. Genotype: C. radiata Hinde. Climacospongia Ilinde, Cat. Foss. Sponges British Mus., 1883, p. 18. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 223. Rauff, Palseontographica, 41, 1895, p. 243, footrote. Climacospongia radiata Hinde. ClimacospOaigia radiata Hinde, Cat. Foss. Sponges British Mus., 1883, p. 18, pi. 1, figs. 1, la. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 224. Niagaran (Brownsport): Perry County, Tennessee. CLIMACTICHNITES Logan. Genotype: C. wilsoni Logan. Climactichnites Logan, Canadian Nat. Geol., 5, 1860, pp. 279-285, figs. 1-5. Dawsoii, ibid., 7, 1862, p. 274. Jones, The Geologist, London, 5, 1862, pp. 138-139. Chapman, Expos. Min. and Geol. Canada, 1864, p. 160. Billings, Quart. Jour. Geol. Soc. London, 26, 1870, p. 485. Chapman, Canadian Jour. Sci., 15, 1877, pp. 486-490. Nathorbt, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, pp. 47, 99. Todd, Trans. Wisconsin Acad. Sci., 5, 1882, pp. 276-281. Dawson, Quart. Jour. Geol. Soc. London, 46, 1890, pp. 596 and 600. Woodworth, Bull. New York State Mus., 69, 1903, pp. 956-966.-^ Clarke, Bull. New York State Mus., 80, 1905, pp. 18-20, pi. 3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 248. Walcott, Smiths. Misc. Coll., 57, No. 9, 1912, p. 259, pis. 38-40. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 142. Climactichnites foster! Todd. Climactichaites Fosteri Todd, Trans. Wisconsin Acad. Sci., 5, 1882, p. 280, 277, fig. 1. Chamberlin-, Geol. Wisconsin, 1, 1883, p. 132, fig. Upper Cambrian (? Ozarkian): Near New Lisbon, Wisconsin. Climactichnites wilsoni Logan. Climactichnites Wilsoni Logan, Canadian Nat. Geol., 5, 1860, pp. 279-285, figs. 1-5; Amer. Jour. Sci., 31, 1861, pp. 17-23, figs. 1-5. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 107, fig. 18. Chapman, Canadian Jour., n. s., 8, 1863, p. 188, fig. 157; Expos. Min. Geol. Canada, 1864, p. 160, fig. 157. Marsh, Proc. Amer. Assoc. Adv. Sci., 17, 1879, p. 322. Logan, 42d Rep. New York State Mus. Nat. Hist., 1889, p. 30, figs. 1-5. Miller, N. A. Geol. Pal., 1889, p. 538, fig. 985. Packard, Proc. Amer. Acad. Arts and Sci., 36, 1900, p. 64. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 248. Walcott, Smiths. Misc. Coll., 57, 1912, p. 286, pi. 40. Upper Cambrian or Ozarkian (Potsdam): Perth, Ontario; New York. Climactichnites youngi Todd. Climactichnites Youngi Todd, Trans. Wisconsin Acad. Sci., 5, 1882, p. 280, fig. 1. Chamberlin, Geol. Wisconsin, 1, 1883, p. 132, fig. Walcott, Smiths. Misc. Coll., 57, 1912, p. 282, pis. 38, 39. Upper Cambrian (?0zarkian): Near New Lisbon, Wisconsin. 240 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CLINOCERAS Mascke. Genotype: C. dens Maacke. Clinoceras Mascke, Zeits. d. d. geol. Gesell., 28, 1876, p. 49. Zittel, Handb. Pal., 2, Munich, 1884, p. 370. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 282. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 126. CLINOCERAS EXIGUUM Schuchert. See Oncoceras exiguum. Clinoceras mumiaforme (Whitfield). Oncoceras mumiafornie Whitfield, Ann. Rep. Geol. Siirv. Wisconsin for 1879, 1880, p. 58; Geol. Wisconsin, 4, 1882, p. 232, pi. 7, figs. 3-5. Chamberlin, Geol. Wisconsin, 1, 1883, p. 159, fig. Clinoceras mumiaeforme Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 282 (gen. ref.). Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 797, pi. 57, figs. 7-10. Grabau and Shimer, N. A. Index Fossil, 2, 1910, p. 126, fig. 1371. Black River (Platteville): Beloit and Janesville, Wisconsin. CLINOPISTHA Meek and Worthen. Genotype: C. Isevis Meek and Worthen. Clinopistha Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1870, p. 43. Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. liv. Koninck, Ann. Mus. Roy. Hist. Nat. Belgique, 11, 1885, p. 125. Miller, N. A. Geol. Pal., 1889, p. 472. Hind, Mon. Brit. Carb. Lamellibranchiata, 1, Pal. Soc., 1900, p. 437. Clinopistha antiqua Whiteaves. Clinopistha? antiqua Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, p. 185, pi. 20, fig. 6. Black River or Richmond: Inmost or Birch Island, Kinwow Bay, Lake Winnipeg. CLINTONELLA Hall and Clarke. Genotype: C. vagabunda Hall and Clarke. Clintonella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 159; 13th Ann. Rep. New York State Geol., 1895, p. 814. Miller, N. A. Geol. Pal., 2d App., 1897, p. 759. Clintonella vagabunda Hall and Clarke. Clintonella vagabunda Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 160, pi. 52, figs. 1-11; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 361, pi. 9, figs. 17-26; 14th Rep. State Geol. New York for 1894, 1897, p. 361, pi. 9, figs. 17-26. Clinton (drift): Orleans County, New York. CLIOCRINUS Hudson. See Cleiocrinus Billings. CLIODERMA Hall. See Pterotheca Koken. CLIONYCHIA Ulrich. Genotype: Ambonychia lamellosa Hall. Ambonychia Hall (part), Pal. New York, 1, 1847, p. 163. Cleionychia Ulrich, Amer. Geology, 10, 1892, p. 97. Clionychia Miller, N. A. Geol. Pal., 1st App. 1892, p. 699. Ulrich, Geol. Minne- sota, 3, pt. 2, 1894, p. 493; Geol. Surv. Ohio, 7, 1893, p. 650. DaU, Zittel- Eastman Textb. Pal., 1, 1900, p. 368; 2d ed., 1913, p. 445. Cumings, Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p, 979. Grabau and Shime N. A. Index Fossils, 1, 1909, p. 435. Clionychia erecta (Hall). Ambonychia erecta Hall, Rep. Supt. Geol. Surv. Wisconsin, 1891, p. 32. Whit field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 59, pi. 7, figs. 1, 2. Clionychia erecta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 496, pi. 35, figs. 17, Black River (Platteville): Beloit, Wisconsin; Minneapolis, Minnesota. Plesiotype. Cat. No. 46112, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 241 Clionychia excavata Ulrich. Clionychia excavata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 651, pi. 51, figs. 4, 5. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 997, pi. 44, figs. 4, 4a. Ambonychia excavata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. ref.). Richmond (Whitewater): Richmond, Indiana. Holotype.Czt. No. 46113, U.S.N.M. CHonychla(?) gibbosa Whiteaves. Clionychia(?) gibbosa Whiteaves, Ottawa Nat., 22, 1908, p. 109, pi. 3, figs. 5, 6. Black River (Lowville): Hog Back, Ottawa, Ontario. Clionychia lamellosa (Hall). Ambonychia lamellosa Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 31 (can- cellosa in error). Whitfield, Geol. Rep. Wisconsin, 4, 1882, p. 205, pi. 5, fig. 5; Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 57, pi. 7, figs. 5-7. Clionychia lamellosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 494, pi. 35, figs. 10-14. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 435, fig. 569a. Ambonychia attenuata Whitfield, Geol. Rep. Wisconsin, 4, 1882, p. 206, pi. 5, fig. 6. Chamberlin, Geol. Wisconsin, 1, 1883, p. 156, fig. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 59, pi. 7, figs. 8-11. Cleionychia attenuata Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). Black River (Platteville): Mineral Point, Beloit, Janesville, etc., Wisconsin; Minneapolis, etc., Minnesota. PlesiotypesC&t. Nos. 46114-46116, U.S.N.M. Clionychia marginalia Raymond. Clionychia marginalis Raymond, Amer. Jour. Sci., 20, 1905, p. 373. Chazyan (Day Point): Chazy and Valcour Island, New York. Clionychia mytiloides (Hall). Ambonychia mytiloides Hall, Pal. New York, 1, 1847, p. 315, pi. 33, figs. 2a-b. Cleionychia mytiloides Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). Chazyan: Chazy, New York. Clionychia nitida Ulrich. Clionychia nitida Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 495, pi. 35, figs. 15, 16. Black River (Platteville): Minneapolis, Minnesota. Clionychia ottawaensis Whiteaves. Clionychia ottawaensis Whiteaves, Ottawa Nat., 22, 1908, p. 108, pi. 3, fig. 4. Black River (Lowville): Hog Back, Ottawa, Ontario. Clionychia rhomboidea (Ulrich). Cleionychia rhomboidea Ulrich, Amer. Geol., 10, 1892, p. 97. Clionychia rhomboidea Miller, N. A. Geol. Pal., 1st App., 1892, p. 699, fig. 1257. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 496, pi. 35, figs. 19, 20. Black River (Platteville): Minneapolis, Minnesota. Plastotype.C&t. No. 46117, U.S.N.M. Clionychia subundata Ulrich. Clionychia subundata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 651, fig. Ambonychia subundata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. ref.). Trenton (Upper): Mouth of Licking River, Covington, Kentucky. Eolotype.Ca.t. No. 46118, U.S.N.M. 84243 Bull. 9215 10 242 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Clionychia superba (Billings). Ambonychia euperba Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 50, fig. 16. Cleionychia? superba Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). Gamachian (Ellis Bay): Junction Cliff, Anticosti. Plastotype.Cat. No. 46910, U.S.N.M. Clionychia undata (Emmons). Pterinea undata Emmons, Geol. Rep. New York, 2, 1842, p. 395, fig. 1. Owen, Amer. Jour. Sci. and Arts, 47, 1844, p. 369, fig. 1; p. 366, fig. Ambonychia undata Hall, Pal. New York, 1, 1847, p. 165, pi. 36, figs. 7a-b. Hitchcock, Geol. Vermont, 1, 1861, p. 296, fig. 205. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 23, fig. Cleionychia undata Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). Clionychia undata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 497, pi. 35, figs. 21, 22. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 435, fig. 569b. Posidonomya subundata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177, pi. 13, figs. 23, 25. Trenton: Watertown, etc., New York; Fillmore and Goodhue Counties, Minnesota (Prosser). Plesiotype.Czt. No. 46119, U.S.N.M. CLIOPTERIA Williams. Genotype: Cliopteria bicostata Williams. Cliopteria Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 391. Cliopteria bicostata Williams. Cliopteria bicostata Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 392, pi. 50, figs. 1, 2, 7. Silurian (Pembroke): Youngs Cove, Washington County, Maine. Cotypes.C&t. No. 58441, U.S.N.M. Cliopteria unicosta Williams. Cliopteria unicosta Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 393, pi. 50, figs. 3, 4, 6. Silurian (Pembroke): Youngs Cove, Washington County, Maine. Cotypes Cat. No. 58442, U.S.N.M. CLISIOPHYLLUM Dana. Genotype: C. danaanum Edwards and Haime. Clisiophyllum Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, 1846, p. 361, pi. 26, figs. 6, 7; Amer. Jour. Sci. and Arts, 2d ser., 1, 1846, p. 187, fig. 2. Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851, pp. 170, 409. Billings, Canadian Jour., n. s., 4, 1859, p. 128. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 402. Dybowski, Archiv. f . Nat. Liv-, Ehst- und Kurl., 5, 1873, p. 338. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 20. Thomson and Nicholson, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 71, fig. E. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 110. Zittel, Handb. Pal., 1, p. 232. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 384. Hall, 12th Rep. Indiana Dep. Geol. Nat, Hist., 1883, p. 299. Miller, N. A. Geol. Pal., 1889, p. 179. Koken, Die Leitfossilien, Leipzig, 1896, p. 309. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 173. CLISIOPHYLLUM AUSTINI Houghton. See Acervularia austini. Clisiophyllum danaanum Edwards and Haime. Clisiophyllum danaanum Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 412. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 404. Silurian: Perry County, Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 243 CLISOSPIBA Billings. Genotype: C. curiosa Billings. Clisospira Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 186. Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 307. Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage, 6, 1889, p. 435. Miller, N. A. Geol. Pal., 1889, p. 400. Koken, Bull. Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 199. Clisospira bassleri Raymond. Clisospira bassleri Raymond, Ann. Carnegie Mus., 4, 1908, p. 214, pi. 54, figs. 16, 17. Chazyan (Day Point?): Isle La Motte, Vermont. Holotype.Czt. No. 53631, U.S.N.M. Clisospira curiosa Billings. Clisospira curiosa Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 186, fig. 167, p. 420, App., fig. 401, a, b. Miller, N. A. Geol. Pal., 1889, p. 400, fig. 661. Clisiospira curiosa Clarke, Amer. Geol., 13, 1894, p. 331. Canadian (Beekmantown) : Near St. Antonie, above Quebec, Canada. Clisospira lirata Whitfield. Clisospira lirata Whitfield, Bull. Amer. Mus. Nat, Hist., 1, 1886, p. 308, pi. 24, figs. 16, 17. k Clisiospira (Onychocheilus?) lirata Clarke, Amer. Geology, 13, 1894, p. 331. Clisiospira lirata Seely, Rep. State Geol. Vermont, 7, 1910, pi. 62, figs. 16, 17. Canadian (Beekmantown): Fort Cassin, Vermont. isospira occidentalis Whitfield. Clisospira occidentalis, Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 75; Geol. Wisconsin, 4, 1882, p. 222, pi. 5, fig. 21. Clisiospira occidentalis Clarke, Amer. Geol., 13, 1894, p. 331. Black River (Platteville) : Beloit, Wisconsin. CLITAMBONITES Pander. Genotype: Pronites adscendens Pander. Klitambonites Pander, Beitrage zur Geognosie des Russischen Reiches, 1830, p. 70, pi. 3, fig. 14; pi. 28, figs. 16, 17. Clitambonites CEhlert, Fischer's Manuel de Conchyliologie, 1887, p. 1289, fig. 1059. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 233. Miller, N. A. Geol. Pal. ,1st App. ,1892, p. 687. W T inchell and Schuchert, Geol. Minnesota, 3, 1893, p. 377. Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 274. Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 320; 2ded.,1913, p. 392. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 270. OrthisinaD'Orbigny, Compt. Rend. del'Acad. Sci., 25, 1847, p. 267; Prod. Pal., 1, 1849, p. 16. Davidson, British Foss. Brack, Pal. Soc., 1853, p, 104. Wood- ward, Man. Mollusca, pt. 2, 1854, p. 230, fig. 148. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 57. Chapman, Canadian Jour., n. s., 3, 1868, p. 160. Pahlen, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 24, No. 8, 1877, p. 7. Zittel, Handb. Pal., 1, 1880, p. 676. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1884, p. 576. Miller, N. A. Geol. Pal., 1889, p. 360. Koken, Die Leitfossilien, Leipzig, 1896, p. 234, fig. 194, p. 408. Huene, Verh. d. Russ-Kais. Min. Gesell. zu St. Petersburg, 2d ser., 38, 1896, p. 224. Clitambonites adscendens (?Pander). Orthisina adscendens (Pander) Kayser, Paleontographica, Suppl., 3, 1876, p. 20, pi. 2, figs. 9-11. Ordovician: Europe; Juan Pobre and Laja, Cordillere San Juan, Argentina. CLITAMBONITES AMERICANUS Hall and Clarke. See Clitambonites diversus. CLITAMBONITES AMERICANUS var. Hall and Clarke. See Clitambonites diversus altissimus. 244 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Clitambonites(?) borealls (Castelnau). Terebratula borealis Castelnau, Essai Syst. Sil. 1'Am^rique Septent., 1843, p. 40, pi. 14, fig. 14. Terebratula turpis de Verneuil, ibid. 1843, p. 40, footnote. Clitambouites(?) borealis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 183. 'Magnesian limestone of Green Bay, Wisconsin." Observation. The figure is not satisfactory. The species seems to be related to C. di versus Shaler (Schuchert). Clltambonites diversus (Shaler). Orthisina diversa Shaler, Bull. Mus. Comp. Zool., 1, 1865, p. 67. Orthisina verneuili Billings (not Eichwald), Cat. Sil. Foss. Anticosti, 1866, pp. 43, 74. Clitambonites diversa Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 378, pi. 30, figs. 11-17. Whiteaves, Pal. Foss., 3, pt. 3, Geol Surv. Canada, 1897, p. 166. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 270, figs. 324e-g. Orthisina (Clitambonites) diversa Huene, Verh. d. Russ. Kais. Mineral Gesell. zu St. Petersburg, 2d ser., 38, 1900, p. 225, fig. 2. Hemipronites, americanus Whitfield, Ann. Rep. Geol. Surv. Wisconsin, 1877, p. 72; Geol. Wisconsin, 4, 1882, p. 243, pi. 10, figs. 15-17. Streptorhynchus americanus Miller, N. A. Geol. Pal., 1889, p. 378. Clitambonites americanus Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 239, pi. 15A, figs. 1-8. Ruedemann, Bull. New York State Mus., 162, 1912, p. 94, pi. 4, figs. 14-19. Trenton and Richmond: Island of Anticosti (Charleton and Ellis Bay); Oshkosh, Wisconsin; Cannon Falls, etc., Minnesota; Ontario; Manitoba; Snake Hill, New York. Observation. Probably two species are included in the above citations, but the types of both C. diversus and C. americanus are from the Richmond. Clitambonites diversus altissimus Winchell and Schuchert. Clitambonites americanus var. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 15A, figs. 7, 8. Clitambonites diversa var. altissiina Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 381, pi. 30, figs. 18, 19. Trenton (Prosser): Near Cannon Falls, Minnesota. CLITAMBONITES DIVERSUS-BOGERSENSIS Foerste. See Clitambonites rogersensis. CLITAMBONITES(?) JOHANNENSIS Schuchert. See Eoorthis johannensis. Clitambonites multicostus (Hudson). Syntrophia multicosta Hudson, Bull. New York State Mus., 80, 1903, p. 285, pi. 5, figs. 8-15. Clitambonites multicostus Raymond, Ann. Carnegie Mus., 7, 1911, p. 247, fig. 23; pi. 36, figs. 10-14. Chazyan (Valcour): Eastern side of Valcour Island, Bluff Point, and Chazy, New York. Clitambonites multistriatus Foerste. Clitambonites multistriata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 131, pi. 10, fig. 12. Trenton (Perryville) : Near Danville, Kentucky. CLITAMBONITES PIQER Schuchert and Twenhofel. See Orthis(?) piger. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 245 Clitambonites planus retroflexus (Verneuil). Gonambonites plana var. retroflexa Verneuil, Beitr. zur Geog. Russ. Reiches, 1830, p. 77, pi. 25, figs. 1, 2. Clitambonites (Gonambonites) plana var. retroflexa Matthew, Trans. Roy. Soc. Canada, 2d ser., 1, 1896, p. 266, pi. 2, figs, la-lc. Canadian (Bretonian): McFeel, Cape Breton, Nova Scotia. Clltambonites porcia (Billings). Orthis porcia Billings, Canadian Nat. Geol., 4, 1859, p. 439, figs. 16-18; Geol. Canada, Geol. Surv. Canada, 1863, p. 130, fig. 58. Lesley, Geol. Surv. Penn- sylvania, Rep. P 4, 1889, p. 531, figs. Clitambonites porcia Raymond, Ann. Carnegie Mus., 7, 1911, p. 248, pi. 36, figs. 15, 16. Chazyan (Aylmer): Two miles south of Montreal, Quebec. Clitambonites rogersensis (Foerste). Clitambonites diversus-rogersensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 323, pi. 7, figs. 14a, b. Clitambonites rogersensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 69; Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 132, pi. 2, figs. 6a-d. Trenton (Upper): Rogers Gap and north of Ford, Kentucky. CLONOGRAPSUS Nicholson. See Clonograptus Hall. CLONOGRAPTUS Hall. Genotype: Graptolithus rigidus Hall. Clonograpsus Hall in Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138. Clonograptus Zittel, Handb. Pal., 1, 1879, p. 299. Herman, Geol. Mag., dec. 3, 3, 1886, p. 24. Barrois, Ann. Soc. Geol. Nord, 21, 1893, p. 108. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 265. Koken, Die Leitfos- silien, 1896, p. 416. Roemer and Freeh, Leth. geog., 1 Theil Leth. Pal., 1, 2 Lief, 1897, p. 598. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 472. Elles and Wood, Mon. British Graptolites, Pal. Soc., 1902, p. 82. Clonograptus abnormis (Hall). Graptolithus abnormis Hall, Canadian Nat. Geol., 3, 1858, p. 144; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 117; Pal. New York, 3, 1859, p. 503; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 51; Geol. Surv., Canada, dec. 2, 1865, p. 106, pi. 11, fig. 6. Graptolithus (Monoprion) abnormis Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226; rev. ed., 1870, pp. 223, 261. Clonograptus abnormis Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. 51 (gen. ref.). Dichograptus abnormis Gurley, Jour. Geol., 4, 1896, pp. 65, 95 (gen. ref.). Canadian (Levis): Point Levis, Quebec. Clonograptus flexilis (Hall). Graptolithus flexilis Hall, Geol. Surv. Canada, Rep. for 1857, 1858, pp. 119, 145. Billings, Geol. Canada, Geol. Surv. Canada, 1868, p. 228, fig. 235. Hall, Geol. Surv. Canada, dec. 2, 1865, p. 11, fig, 8; p. 103, pi. 10, figs. 3-9. Dichograpsus flexilis Nicholson, Mon. British Graptolites, 1872, p. 108, fig. 51. Gurley, Jour. Geol., 4, 1896, p. 95. Graptoltthus (Dichograptus) flexilis Hall, 20th Rep. New York State Cab. Nat. Hist,, 1868, p. 176, fig. 9; p. 226, pi. 3, figs. 28, 29; rev. ed., 1870, p. 209, fig. 9, pi. 3, figs. 28, 29. Graptolithus (Monoprion) flexilis Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 223. 246 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Clonograptus flexilis Continued. Clonograpsus flexilis Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138 (gen. ref.). Clonograptus flexilis Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 97. Pritchard, Proc. Royal Soc. Victoria, n. s., 7, 1895, p. 29. Roemer, Leth. geog., 1 Theil., Leth. Pal., 1, 3 Lief, 1897, p. 599, fig. 164. Elles, Quart, Jour. Geol. Soc. London, 54, 1898, p. 473. T. S. Hall, Proc. Soc. Victoria, n. s., 11, 1898, p. 169, pi. 19, fig. 20. Clonograptus cf. flexilis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 618. Canadian: Point Levis, Quebec (Levis, Clonograptus zone); St. John, New Brunswick (Bretonian, Div. C 3d); near Defreestville, Rensselaer County, New York (Deepkill) ; Victoria. Clonograptus miles! (Hall). Graptolithus milesi Hall, Geol. Vermont, 1, 1861, p. 372; 2, pi. 12, figs. 2-4; Geol. Surv. Canada, dec. 2, 1865, p. 20, fig. 27; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 188, fig. 29; p. 226; rev. ed., 1870, p. 217, fig. 29. Graptolithus (Monoprion) milesi Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 223. Dichograpsus (Graptolithus) milesi Nicholson, Mon. Brit. Grapt., 1872, p. 65, fig. 34. Temnograptus milesi Nicholson, Geol. Mag., dec. 2, 3, 1876, p. 248 (gen. ref.). Clonograptus milesi Ruedemann, Bull. New York State Mus., 69, 1903, p. 939; Mem. New York State Mus., 7, 1904, p. 617 and footnote. Canadian (Levis): Monckton, Vermont. CLONOGRAPTUS PROXEMATUS Matthew. See Staurograptus dichotomus. Clonograptus remotus (Gurley). Dichograpsus remotus Gurley, Jour. Geol., 4, 1896, p. 64. Clonograptus remotua Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 133 (gen. ref.). Canadian (Levis): Point Levis, Quebec. CLONOGRAPTUS RICHARDSONI Elles and Wood. See Holograptus richardsoni. Clonograptus rlgldus (Hall). Graptolithus rigidus Hall, Canadian Nat. Geol., 3, 1858, p. 146; Geol. Surv. Can- ada, Rep. Progr. for 1857, 1858, p. 121; Geol. Surv. Canada, dec. 2, 1865, p. 105, pi. 11, figs. 1-5. Graptolithus (Monoprion) rigidus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226; rev. ed., 1870, pp. 223, 261. Dichograpsus rigidus Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.). Clonograptus rigidus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138 (gen. ref.). Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 599. T. S. Hall, Proc. Royal Soc. Victoria, n. s., 11, 1898, p. 170, pi. 18, fig. 22; pi. 19, fig. 21. Elles and Wood, Mon. Brit. Grapt. Pal. Soc., 1903, p. 51 (gen. ref.). Canadian (Levis, Clonograptus zone): Point Levis, Quebec. Lower Ordovician slates of Victoria. Clonograptus? splnosus Matthew. Clonograptus (?) spinosus Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 97, pi. 7, figs. 2 a, b. Canadian (Bretonian, Div. C 3b): Navy Island, New Brunswick. Observation. Possibly same as Staurograptua dichotomus Emmons. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 247 CLORINDA Barrande. Genotype: C. armata Barrande. Clorinda Barrande, Syst. Sil. Boheme, 5, pt. 1, 1879, p. 109, pi. 119; Brack. Ext. Syst. Sil. Centre Boheme, 5, ]S79, p. 172. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 322. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 276. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 395. Barrandella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, pp. 241, 243; Ann. Rep. New York State Geol., 1895, p. 844. Grabau, Bull. New York State Mus., 45, 1901, p. 191; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 191. Clorinda arcuosa (McChesney). Pentamerus arcuosus McChesney, Descriptions New Pal. Foss., 1861, p. 87. Clorinda arcuosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184 Niagaran (Racine) : Milwaukee, Wisconsin. Clorinda areyi (Hall and Clarke). Barrandella areyi Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 242, 368, pi. 71, figs. 14-16; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 369, pi. 13, figs. 1-3; 14th Rep. State Geol. New York for 1894, 1897, p. 369, pi. 13, figs. 1-3. Clorinda areyi Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184. Clinton: Rochester, New York. CLORINDA BARRANDEI Schuchert. See Virgiana barrandei. Clorinda fornicata (Hall). Pentamerus fomicatus Hall, Pal. New York, 2, 1852, p. 81, pi. 24, fig. 7. Pentamerus fornicatus var. Hall, Desc. n. sp. Fossils, Waldron, Indiana, 1879, p. 16; llth Rep. State Geol. Indiana, 1882, p. 299, pi 27, fig. 15; Trans. Albany Inst., 10, 1883, p. 72. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 616, figs. Barrandella fornicata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 243, pi. 70, figs. 11-13. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 191, fig. 104; Bull. New York State Mus., 45, 1901, p. 191, fig. 104. Clorinda fornicata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184. Clorinda (Barrandella) fornicata Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 276, fig. 335. Niagaran: Lockport, New York (Clinton-Irondequoit); Waldron, Indiana (Wald- ron); Wisconsin. Clorinda? thebesensis Savage. Clorinda? thebesensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 79, pi. 5, figs. 7,8. Upper Medinan (Edgewood): Near Thebes, Illinois; Louisiana; and near Clarks- ville, Pike County, Missouri (Noix oolite). Clorinda ventricosa (Hall). Pentamerus ventricosa Hall, Geol. Surv. Wisconsin, Rep. Prog., 1860, p. 2. tWhitfield, Geol. Wisconsin, 4, 1882, p. 291, pi. 17, figs. 11-13. Chamberlin, Geol. Wisconsin, 1, 1883, p. 192, fig. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Surv., 1889, p. 64, pi. 33, figs. 12-14. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 619, 2 figs. Pentamerus chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 94, pi. 2, fig. 11. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 392. Pentamerus (Pentamerella?) ventricosa Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 374, pi. 13, figs. 18-21 . 248 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Clorinda ventricosa Continued. Pentamerus (Pentamerella) ventricosus Hall and Whitfield, Pal. Ohio, 2, 1875, p. 138, pi. 7, figs. 7, 8. Pentamerus (Barrandella) ventricosus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 65. Barrandella ventricosa Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 243, pi. 71, figs. 4-10; pi. 84, fig. 46. Clorinda (Barrandella) ventricosa Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 276, fig. 336a-b. Clorinda ventricosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 185. Niagaran: Waukesha, Wisconsin; Bridgeport, Illinois (Racine); Louisville, Ken- tucky; Ohio. Plexiotype.Ca.t. No. 51323 (Nettelroth). CLOSTEROCRINUS Hall. Genotype: C. elongatus Hall. Closterocrinus Hall, Pal. New York, 2, 1852, p. 179. Pictet, Traitede Pal., 2d ed., 4, 1857, p. 329. Miller, N. A. Geol. Pal., 1889, p. 232. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 173. Closterocrinus elongatus Hall. Closterocrinus elongatus Hall, Pal. New York, 2, 1852, p. 179, pi. A 41, figs. 2a-f. Clinton (Irondequoit): Lockport, New York. CNEMIDIUM? TRENTONENSIS Worthen. See Zittelella trentonensis. COCCOCRINUS Miiller. Genotype: C. rosaceus Roemer. Coccocrinus Miiller, in Zeiler and Wirtgen, Verh. Naturh. Verein Rheinl., 12, 1855, p. 20. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 310. Roemer, Sil. Fauna West. Tennessee, 1860, p. 51. Dujardin and Hupe" Hist. Nat. Zooph., 1862, p. 107. Allman, Trans. Royal Soc. Edinburgh, 23, 1864, p. 248, fig. 3. Schultze, Denk. d. Kais. Akad. der Wiss., Math.-Naturw., Cl. 26, Abth. 2, 1867, p. 200, fig. 16. Zittel, Handb. d. Pal., 1, 1879, p. 347. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 232. (Rev. Pal., pt. 2, p. 58); 1886, pp. 280, 336 (Rev. Pal., pt. 3, pp. 58, 114); 1887, pp. 97-113; ibid., 1890, pp. 351, 355. Neumayr, Stamme des Thierreicher, 1889, p. 470. Miller, N. A. Geol. Pal., 1889, p.' 232. Bather, Geol. Mag., dec. 4, 4, 1897, p. 343. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 738. Bather, Treatise on Zool., pt. 3, Echinoderma, 1900, p. 156. Zittel, Grundzuge Pal., 1, 1910, p. 149. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 515. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 199. Coccocriiius bacca Roemer. Coccocrinus bacca Roemer, Sil. Fauna West. Tennessee, Breslaii, 1860, p. 51, pi. 4, figs. 5a, 5b, 5c. Miller, N. A. Geol. Pal., 1889, p. 232, fig. 265. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 739, pi. 75, fig. 15. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 29, pi. 4, fig. 9. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 515, fig. 1835. Platycrinites Ann Dixoni Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p. 420 (nom. nud.); Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61. Niagaran (Brownsport) : Perry and Decatur Counties, Tennessee. Plesiotype.C&t. No. 39888, U.S.N.M. (Troost's type of P. Ann Dixoni). Coccocrinus conicus (Troost). Coccocrinus conicus (Cupellacrinites conicus Troost MS. 1850) Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 29, pi. 15, fig. 1. Niagaran (Brownsport): Decatur County, Tennessee. Holotijpe.C.&t. No. 39933, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 249 CODASTER OSGOODENSIS Wachsmuth and Springer. See Stephanocrinus osgcodensis. CODASTER PENTALOBUS Hall. See Stephanocrinus pentalobus. CODASTER PULCHELLUS Miller and Dyer. See Stephanocrinus pulchellus. CODONOCHILUS Whiteaves. Genotype: C. etriatum Whiteaves. Codonocheilus \\"hiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 37. Codonochilus Miller, N. A. Geol. Pal., 1889, p. 400. Codonochilus striatum Whiteaves. Codonocheilus striatum Whiteaves, Pal. Foes., Geol. Surv. Canada, 3, pt. 1, 1884, p. 17, pi. 3, fig. 3. Codonochilus striatum Fischer, Man. de Conchyl., 1885, pp. 832, 833. Miller, N. A. Geol. Pal., 1889, p. 400, fig. 662. Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, pt. 2, 1895, p. 93. Niagaran (Guelph): Hespeler and Durham, Ontario. CCELASTER AMERICANUS D'Orbigny. See Petraster americana. CCELASTER MATUTiNA D'Orbigny. See Hudsonaster matutina. CCELIDIUM Clarke and Ruedemann. See Ccelocaulus (Ehlert. CCELOCAULUS (Ehlert. Genotype: Murchisonia (Ccelocaulus) davidsoni (Ehlert. Murchisonia (part) Lindstrom, Billings, and other authors. Ccelocaulus (new subgenus of Murchisonia) (Ehleit, Bull. Soc. d'Etudes Sci. d' Angers, 7, 1888, p. 84. Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage- Band, 1889, p. 371. Donald, Quart. Jour. Geol. Soc. London, 48, 1892, p. 572; 51, 1895, p. 211. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 959-1019. Koken, Neues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 20. Ccelidium Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 65. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652. Ccelocaulus bivittatus (Hall). Murchisonia bivittata Hall, Pal. New York, 2, 1852, p. 345, pi. 83, fig. la, b Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 343. Nichol- son, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 7 (not fig. 8); Quart. Jour. Geol. Soc. London, 31, 1875, p. 546, pi. 26, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 427, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 82, pi. 12, figs. 5, 6. Murchisonia (Ccelocaulus) bivittata Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 462, pi. 13, fig. 4. Ccelocaulus bivittatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020 (gen. ref.). Niagaran: Gait, Ontario (Guelph); Huntington, Indiana. Ple#iotype.Ca,t. No. 52948, U.S.N.M. Ccelocaulus estella (Billings). Murchisonia Estella Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 157, fig. 139. Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 6, 1889, p. 368. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 11, 1895, p. 83. Ccelocaulus estella Whiteaves, ibid., 3, pt. 4, 1906, p. 334 (gen. ref.). Niagaran (Guelph): Gait, Ontario. Observation. Probably the same as C. turritiformis (Hall). locaulus linearis (Billings). Murchisonia linearis, Billings, Canadian Nat. Geol., 4, 1859, p. 359, fig. 8g; Geol. Canada, Geol. Surv. Canada, 1863, p. 119, fig. 31. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 429, fig. 250 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Coelocaulus linearis Continued. Coelocaulus linearis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020 (gen. ref.). Ccelidium linearis Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652. Chazyan (Mingan) : Mingan Islands, Canada. CCELOCAULUS LoGANi Hall. See Coelocaulus macrospira. Coelocaulus longispira (Hall). Murchisonia longispira Hall, Pal. New York, 2, 1852, p. 345, pi. 83, fig. 2a, b. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 11, 12; Quart. Jour. Geol. Soc. London, 31, 1875, p. 546, pi. 26, figs. 11, 12. White- aves, Pal. Foss., Geol. Surv. Canada, 3, pt, 2, 1895, p. 83. Coelocaulus longispira Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020 (gen. ref.). Niagaran (Guelph): Gait, Ontario; Wisconsin. Coelocaulus macrospira (Hall). Murchisonia macrospira Hall, Pal. New York, 2, 1852, p. 346, pi. 83, fig. 5. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 334. Nicholson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 545, pi. 26, fig. 9; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, fig. 9. Chamberlin, Geol. Wisconsin, 1, 1883, p. 193, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 27, pi. 4, figs. 7, 7a. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 429, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 81. Coelidium macrospira Clarke and Ruedemann, Mem. New York State Mus., 5, 1003, p. 65, pi. 7, figs. 2-8; pi. 10, fig. 13. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652, fig. 892. Ccelocaulus macrospira Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 333 (gen. ref.). Murchisonia loganii Hall, Pal. New York, 2, 1852, p. 346, pi. 84, figs. 4a, b. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 3, 4; Quart. Jour. Geol. Soc. London, 31, 1875, p. 544, pi. 26, figs. 3, 4. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 80. Coelocaulus logani Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020 (gen. ref.). Niagaran (Guelph): Gait, Ontario; Shelby and Rochester, New York; Wisconsin. Coelocaulus neglectus Ulrich and Scofield. Ccelocaulus neglectus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020, pi. 82, figs. 29-31. Trenton (Prosser): Near Cannon Falls, Minnesota. Holotype.Cat. No. 45749, U.S.N.M. Coelocaulus obtusus (Hall). Murchisonia? obtusa Hall, Pal. New York, 2, 1852, p. 333, pi. 76, fig. 3. Cayugan (Cobleskill) : Schoharie, New York. Coelocaulus oehlerti Ulrich and Scofield. Ccelocaulus cehlerti Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020, pi. 70, figs. 61-63. Ccelidium oehlerti Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652, fig. 893 a, b. Murchisonia oehlerti Miller, N. A. Geol. Pal., 2d App., 1897, p. 768 (gen. ref.). Trenton (Galena): Jo Daviess County, Illinois. Cotypes: Cat. No. 45750, U.S.N.M. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 251 Coelocaulus petila (Hall and Whitfield). Murcliisonia petila Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 186; 27th Rep., 1875, p. 186, pi. 13, fig. 8. Nettelroth, Ken- tucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 170, pi. 31, fig. 5. Niagaran (Louisville): Falls of the Ohio. Coelocaulus terebralis (Hall). Murchisonia? terebralis Hall, Pal. New York, 2, 1852, p. 334, pi. 76, fig. 4. Cayugan (Cobleskill) : Schoharie, New York. Coelocaulus turritiformls (Hall). Murcliisonia turritiformis Hall, Pal. New York, 2, 1852, p. 347, pi. 83, fig. 6a, b. Nicholson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 545, pi. 26, fig. 10; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, fig. 10. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 26, pi. 4, fig. 5; pt. 2, 1895, p. 84, pi. 12, fig. 4. Ccelocaulus turritiformia Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020 (gen. ref.). Niagaran (Guelph): Gait, Ontario; Wisconsin. Observation. See C. estella (Billings) for a probable synonym. Coelocaulus vitellia (Billings). Muichisonia Vitellia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 156, fig. 138 (adv. sheets 1862). Nicholson, Quart. Jour. Geol. Soc. London, 30, 1875, p. 547, pi. 26, fig. 6; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 71, pi. 3, fig. 6 Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 80. Ccelidium cf . vitellia Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 67, pi. 7, figs. 9, 10. Ccelocaulus(?) Vitellia Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 333 (gen. ref.). Niagaran (Guelph): Gait, Ontario; Rochester, New York. CCELOCLEMA Ulrich. Genotype: Diamesopora vaupeli Ulrich. Cceloclema Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 137; 7, 1884, p. 49 (not defined). Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 24, 211. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 21. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 742. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 83; Zittel-Eastman Textb. Pal., 1913, p. 328. Diamesopora (part) Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 380, 467; Geol. Minnesota, 3, 1893, p. 330; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 268. Coeloclema alternatum (James). Ceramopora alternata James, Paleontologist, No. 1, 1878, p. 5. Monticulipora (Fistulipora) alternata James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 34, pi. 1, figs. 5-5b. Diamesopora vaupeli Ulrich, Geol. Surv. Illinois, 8, 1890, p. 468, pi. 39, figs. 3, 3b; pi. 41, figs. 4-4c. Cceloclema alternatum Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 211. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 33. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 803, pi. 12, figs. 2-2d; pi. 27, fig. 16. Eden (Southgate and McMicken): Cincinnati, Ohio, and vicinity. Plesiotypes.C&t. No. 43292, U.S.N.M.' (cotypes of D. vaupeli). 252 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Coeloclema cavernosum Bossier. Cceloclema cavernosa Bassler, Bull. U. S. Geol. Stirv., 292, 1906, p. 21, pi. 23, figs 10-13. Clinton: Lockport, New York (Rochester); Osgood, Indiana (Osgood). Cotypes.Cat. No. 35471, U.S.N.M. Coeloclema commune (Ulrich). Diamesopora communis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 469, pi. 39, 3a, pi. 41, figs. 5, 5b. Coeloclema concentricum Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 212 (not Ceramopora concentrica James). Coeloclema commune Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 804, pi. 12, figs. 3, 3c; pi. 27, fig. 17. Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity. . No. 43293, U.S.N.M. COELOCLEMA CONCENTRICUM Nickles and Bassler. See Cceloclema commune. CCELOCLEMA IMBRICATA Ulrich. See Diamesopora subimbrieata. CCELOCLEMA INFREQUENS Ulrich. See Diamesopora infrequens. CCELOCLEMA OSCULUM Ulrich. See Diamesopora osculum. Coeloclema oweni (James). Fistulipora oweni James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 21, figs. 2-2g. Monticulipora (Fistulipora) oweni James and James, ibid., 11, 1888, p. 34. J. F. James, ibid., 18, 1896, p. 119. Diamesopora oweni Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467. Coeloclema oweni Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 212 (gen. ref.). Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 34, pi. 6, figs. 5, 6. Maysville (Mount Auburn): Lebanon, Cincinnati, etc., Ohio; Indiana; Ken- tucky. Coeloclema trentonense (Ulrich). Diamesopora trentonensis Ulrich, Geol. Minnesota, 3, 1893, p. 330, pi. 28, fig. 14; Zittel'sTextb. Pal. (Engl. ed.), 1896, p. 268, fig. 439. . Cceloclema trentonense Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 212 (gen. ref.). Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122, fig. 178. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 463. Black River (Decorah): St. Paul and Cannon Falls, Minnesota. Trenton: St. Paul, etc., Minnesota (Prosser); Trenton Falls, New York; Ottawa, Ontario. Cotypes.C&t. No. 43294, U.S.N.M. CCELOCYSTIS Schuchert. Genotype: Hemicosmites subglobosus Hall. Hemicosmites Hall (not Von Buch), 20th Rep. New York State Cab. Nat. Hist., rev. ed., 1868, p. 359. Sphaerocystites Jaekel (not Hall), Stammesg. Pelmat., 1, 1899, p. 289, fig. 63; p. 307. Ccelocystis Schuchert, Amer. Geol., 32, 1903, p. 234; Smiths. Misc. Coll., 47, 1904, p. 246. Coelocystis subglobosus (Hall). Hemicosmites subglobosus Hall, 25th Rep. New York State Cab. Nat. Hist., 1868, (extras Dec., 1864), p. 316, pi. 12 (3), fig. 13; rev. ed., 1868 (1870), p. 359, pi. 12, fig. 13. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 253 Coelocystls subglobosus Continued. Sphaerocystttes dolomiticus Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cys- toidea, 1899, p. 289, fig. 63. Ccelocystis subglobosua Schuchert, Amer. Geol.,32, 1903, p. 235; Smiths. Misc. Coll., 47, 1904, p. 248, figs. 36, 37. Niagaran (Racine): Racine, Wisconsin; Chicago, Illinois. Plesiotypes.Cat. Nos. 35061, 35155, U.S.N.M. CflELOSPIRA Hall. Genotype: Leptocoelia concava Hall. Ccelospira Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 59; Trans. Albany Inst., 4, 1863, p. 146; Pal. New York, 4, 1867, p. 328. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 134, figs. 122, 123. Davidson, Mon. British Foss. Brach., 5, Sil. Suppl., Pal. Soc., 1882, p. 84. Miller, N. A. Geol. Pal., 1889, p. 340. Koken, Die Leitfossilien, Leipzig, 1896, p. 241. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 338; 2d ed., 1913, p. 338. Leptocoelia Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 108; 12th Rep., 1859, p. 32, figs. 1, 2, 4; Pal. New York, 3, 1859, p. 447. Billings, Canadian Jour., 6, 1861, p. 351. Hall, Amer. Jour. Sci., 36, 1863, p. 14. Rominger, Amer. Jour. Sci., 35, 1863, p. 84. Hall, Trans. Albany Inst., 4, 1863, p. 145; Pal. New York, 4, 1867, p. 365. Davidson, Mon. British Sil. Brach., Pal. Soc., 1867, p. 138, footnote. Dall, Amer. Jour. Conch., 6, 1870, p. 98, footnote; 7, 1871, p. 60. Zittel, Handb. Pal., 1, 1880, p. 704. Davidson, Mon. British Foss. Brach., 5, App. to Suppl., Pal. Soc., 1884, p. 365. Miller, N. A. Geol. Pal., 1889, p. 348. Nettleroth, Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky, 1889, p. 151. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136. Ulrich, Neues Jahrb. f. Min., Geol., Pal. Beilage-Band, 8, 1893, p. 60. Koken, Die Leitfossilien, Lepizig, 1896, p. 249. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 417. (Subgenus of Coelospira; genotype L. flabellites Hall.) Anoplotheca Grabau, Bull. New York State Mus., 45, 1901, p. 205; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 205. Schuchert and Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 433. Coelospira concava tonolowayensis (Swartz). Anoplotheca concava var. tonolowayensis Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 435, pi. 73, figs. 20, 21. Helderbergian (Keyser): Tonoloway, Maryland. Ccelospira congregata (Kindle and Breger). Anoplotheca congregata Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 444, pi. 9, figs. 18-20. Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, No. 1, 1909, p. 20. Cayugan (Kokomo): Logansport and Kokomo, Indiana. Coelospira hemispherica (Sowerby). Atrypa hemispherica Sowerby, Murchison's Sil. Syst., 1839, p. 639, pi. 20, fig. 7. Hall, Pal. New York, 2, 1852, p. 74, pi. 23, fig. 10. Billings, Geol. Canada, 1863, p. 318, fig. 337. Atrypa hemispherica ? Hall, Geol. New York; Rep. Fourth Dist., 1843, p. 73, fig. 4. Leptocoelia hemispherica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 77. Nettelroth, Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky, 1889, p. 152, pi. 32, figs. 21-23, 36-39. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 325, pi. 6, figs. 18, 19. Atrypa flabella Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 68. 254 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ccelospira hemlspherica Continued. Ccelospira ? hemispherica Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136, pi. 82, figs. 1-4 (? pi. 52, fig. 16). Anoplotheca hemispherica Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 204, fig. 132; Bull. New York State Mus., 45, 1901, p. 205, fig. 132. Anoplotheca (Ccelospira) hemispherica Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 350, fig. 455. Silurian: England; Rochester, Sodus, and Walcott, New York; Kentucky; Tennessee; Georgia; Alabama; Nova Scotia (Clinton); The Jumpers, etc., Anticosti (Anticostian, Gun River-Chicotte). Plesiotype.C&t. No. 51322, U.S.N.M. Ccelospira planoconvexa (Hall). Atrypa planoconvexa Hall, Pal. New York, 2, 1852, p. 75, pi. 23, fig. 11. Billings, Geol. Canada, 1863, p. 318, fig. 336. Leptoccelia planoconvexa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 78. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 144. Coelospira? planoconvexa Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136, pi. 52, fig. 15; pi. 53, figs. 11-16. Anoplotheca planoconvexa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145. Silurian: Flamborough Head, etc., Ontario (Cataract); Island of Anticosti (Gun River). Coelospira plica tula (Hall). Atrypa plicatula Hall, Geol. New York, Rep. 4th Dist., 1843, p. 71, fig. 4; Pal. New York, 2, 1852, p. 74, pi. 23, fig. 9. Leptoccelia? plicatula Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 78. Rhynchonella plicata Miller, N. A. Geol. Pal., 1889, p. 369. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 898, fig. Ccelospira? plicatula Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136, pi. 52, figs. 12-14; pi. 82, fig. 5. Anoplotheca plicatula Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 205, fig. 133; Bull. New York State Mus., 45, 1901, pp. 205, 206, fig. 133. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 350, fig. 456. Clinton: Reynales Basin, etc., New York. Coelospira saffordi (Foerste). Anoplotheca (Ccelospira) saffordi Foerste, Jour. Geol., 11, 1903, p. 709. Anoplotheca saffordi Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 89, pi. 1, fig. 6. Niagaran (Brownsport) : Near Martins Mills, Bath Springs, etc., Tennessee. CCENITES Eichwald. Genotype: C. juniperinus Eichwald. Ccenites Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 179. Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851, pp. 157, 301. McCoy, British Pal. Rocks and Fossils, 1854, p. 21. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 444. Milne-Edwards, Hist. Nat. Corall, 3, 1860, p. 308. Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 130. Salter, Cat. Camb. and Sil. Foss., 1873, p. 105. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 150. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 54. Nicholson and Etheridge, Jour. Linn. Soc., Zool., 13, 1877, p. 361. Nicholson, Tab. Corals Pal. Period, 1879, p. 130. Zittel, Handb. Pal., 1, 1880, p. 619. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 444. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 255 CCENITES Continued. Miller, N. A. Geol. Pal., 1889, p. 179. Sardeson, Neues Jahrb. f. Min., Geol. Pal. Beilage-Band, 10, 1896, pp. 252, 320. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 26. Pocta, Syst. Sil. Centre Boheme, 8, pt. 2, 1902, p. 255. Limaria Steininger, Mem. Soc. Geol. France, 1, 1834, p. 339, pi. 20, figs. 6, 6a. Dana, WilkesU. S. Expl. Exped. 1838-1842, 7, Zoophytes, 1846, p. 702. Hall, Pal. New York, 2, 1852, p. 142. Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 390; Geol. Surv. Michigan, 3, pt. 2, 1876, p. 44. Observation. See Dictyostroma Nicholson for a probable synonym. Ccenites crassus (Rominger). Limaria crassa Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 45, pi. 18, fig. 1. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 341, fig. Ccenites crassa Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 4, fig. 6. Cladopora crassa Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 30. Niagaran: Point of Barques, Lake Michigan; Lake Temiscaming, Quebec; Louis- ville, Kentucky. Coenltes fruticosus (?Steininger) Hall. Limaria fruticosa Steininger, Bull. Soc. Geol. France, 1, 1834, p. 339. Hall. Pal. New York, 2, 1852, p. 143, pi. 39, figs. 5a, b. Ccenites fruticosa Miller, N. A. Geol. Pal., 1889, p. 179 (gen. ref.). Silurian: England; Lockport, New York (Lockport). Ccenites juniperinus Eichwald. Ccenites juniperinus Eichwald, Zool. Spec., 1, 1829, p. 197. Edwards and Haime, Polyp. Foss. Terr. Pal., 1851, p. 301; Mon. British Foss. Corals, Pal. Soc., 1854, p. 276, pi. 65, figs. 4, 4a. Nicholson, Pal. Tab. Corals, 1879, p. 134, pi. 6, figs. 5, 5b. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 1899, p. 27. Silurian: England; Thorold, Ontario (Niagaran-Lockport). Coenites laminatus (Hall). Limaria laminata Hall, Pal. New York, 2, 1852, p. 143, pi. 39, figs. 6a-d. Romin- ger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 45, pi. 18, fig. 2. Ccenites laminata Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 151. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 55, fig. 25d, e. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 4, fig. 5. Niagaran: Lockport, New York (Lockport); Drummond Island, Lake Huron; Louisville, Kentucky (Louisville). Ccenites lunatus (Nicholson and Hinde). Ccenites lunata Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 151, fig. 2. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 55, fig. 25a-c. Miller, N. A. Geol. Pal., 1889, p. 179, fig. 155. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 28. Niagaran: Owen Sound, Ontario; North end of Lake Temiscaming, Quebec. Anticostian (Jupiter River) : The Jumpers, Anticosti. Coenites ramulosus (Hall). Limaria ramulosa Hall, Pal. New York, 2, 1852, p. 142, pi. 39, figs. 4a-d. Rom- inger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 44. CcenLtes ramulosa Miller, N. A. Geol. Pal., 1889, p. 179 (gen. ref.). Niagaran (Lockport) : Lockport, New York. 256 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Coenites vertlcillatus (Winchell and Marcy). Cladopora verticillata Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 84. Limaria verticillata Rominger, Geol. Surv. Mich., 3, pt. 2, 1876, p. 45 (gen. ref.). Coenites verticillata Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 46, figs. 1^1. Niagaran: Chicago, Illinois (Racine); Louisville, Kentucky (Louisville); Ten- nessee (Brownsport). CCENOGRAPTUS Hall. See Nemagraptus Emmons. CCENOGRAPTUS (?PLEUROGRAPTUS? PTEROGRAPTUS) DIVERGENS Hall. See Amphi- graptas divergens. CCENOGRAPTUS EXILIS Lapworth. See Nemagraptus exilis. CCENOGRAPTUS GRACILIS Hall. See Nemagraptus gracilis. CCENOGRAPTUS (PLEUROGRAPTUS) LINEAHIS Roemer and Freeh. See Pleurograptus linearis. CCENOGRAPTUS SURCULARIS Hall. See Nemagraptus gracilis surcularis. CCENOSTOMA Spencer. See Coenostroma Winchell. CCENOSTOMA BOTRYoiDEUM Spencer. See Clathrodictyon striatellum. CCENOSTOMA CONSTELLATUM Spencer. See Stromatopora constellata. CCENOSTROMA CONSTELLATUM of authors. See Stromatopora constellata. CCENOSTROMA GALTENSE Dawson. See Stromatopora galtensis. COLEOLUS Hall. Genotype: C. tenuicinctus Hall. Coleolus Hall, Pal. New York, 5, pt. 2, 1879, p. 184. Zittel, Handb. Pal., 2, 1882, p. 315. Miller, N. A. Geol. Pal., 1889, p. 389. Whidborne, Mon. Dev. Fauna South England, 3, Pal. Soc., 1896, p. 38. Koken, Die Leitfossilien, Leipzig, 1896, p. 96. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 283. Coleolus clintonensis Foerste. Coleolus Clintonensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 547, pi. 37A, fig. 11. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. Coleolus iowensis James. Coleolus iowensis James, Amer. Geol., 5, 1890, p. 355. Richmond (Maquoketa) : Illinois and Iowa. Coleolus spinulus Hall. Coleolus spinulus Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 322, pi. 33, fig. 8; Trans. Albany Inst., 10, 1883, p. 74. Niagaran (Waldron): Waldron, Indiana. COLEOPRION Sandberger. Genotype: C. gracilis Sandberger. Coleoprion Sandberger, Neues Jahrb. f. Min., etc., 1847, p. 24. Woodward, Man. Mollusca, pt. 2, 1854, p. 206. Pictet, Traite" de Pal., 2d ed., 3, 1855, p. 320. Ludwig, Paleontographica, 11, 1864, p. 317. Barrande, Syst. Sil. Centre Boheme, 3, 1867, p. 108. Hall, Pal. New York, 5, pt. 2, 1879, p. 183. Zittel, Handb. Pal., 1882, p. 315. Miller, N. A. Geol. Pal., 1889, p. 390. Koken, Die Leitfossilien, Leipzig, 1896, p. 96. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 257 Coleoprlon mlnuta Walcott. Coleoprion minuta Walcott, Hon. U. S. Geol. Surv., 8, 1884, p. 85, pi. 11, figs. 17, 17a; pi. 12, fig. 21. Upper Pogonip: Lone Mountain and Pogonip Ridge, Nevada. Cotypes.C&t. No. 17373, U.S.N.M. COLPOCERAS Hall. See Endoceras Hall. COLPOMYA Ulrich. Genotype: C. constricta Ulrich. Colpomya Ulrich, Geol. Surv. Ohio, 7, 1893, p. 659; Geol. Minnesota, 3, pt. 2, 1894, p. 522. Miller, N. A. Geol., Pal., 2d App., 1897, p. 780. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 516. Colpomya abrupta Savage. Colpomya abrupta Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 94, pi. 5, fig. 27. Upper Medinan (Edgewood): Near Edge wood, Missouri. Colpomya constricta Ulrich. Colpomya constricta Ulrich, Geol. Surv. Ohio. 7, 1893, p. 659, pi. 52, figs. 17-19; Geol. Minnesota, 3, pt. 2, 1894, p. 523, fig. 41. Grabau and Shinier, N. A. ^ Index Fossils, 1, 1909, p. 516, figs. 695a, b. Trenton (Perryville) : Frankfort, Kentucky. Cotypes.G&t. No. 46120, U.S.N.M. 1 Jlpomya demlssa Ulrich. Colpomya demissa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 524, pi. 36, figs. 21, 22. Black River (Decorah): Chatfield, Minnesota. Holotype.Ca,t. No. 46121, U.S.N.M. Colpomya faba (Emmons). Nuculites faba Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 385, fig. 5. Lyonsia faba Conrad in Emmons, Amer. Geology, 1, pt. 2, 1855, p. 172, pi. 14, figs. 14, 15. Modiolopsis faba Hall, Pal. New York, 1, 1847, p. 158, pi. 35, figs. 6a-d. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 408, fig. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 169, pi. 11, figs. 13-15. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 511. Trenton: Watertown, etc., Middleville, New York; New Jersey; etc. Colpomya faba pusllla Foerste. Modiolopsis faba Hall, Pal. New York, 1; 1847, pi. 82, figs. 4a-b. Colpomya faba pusilla Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 275, pi. 2, fig. 10; pi. 3, figs. 4a, b. Cincinnatian (Pulaski) : Pulaski, New York; Chambly, Quebec. COLUMNARIA Goldfuss. Genotype: C. alveolata Goldfuss. Columnaria Goldfuss, Petrefacta Germanise, 1, 1826, p. 72. Eaton, Geol. Textb., 2d ed., 1832, p. 40. Steininger, Mem. Soc. Geol. France, 1, 1834, p. 343. Koninck, Desc. Animaux Fossiles, Liege, 1842-1844, p. 25. Dana, Amer. Jour. Sci. Arts, 2d ser., 1, 1846, p. 188; Wilkes U. S. Expl. Exped., 1838-1842, 7. Zoophytes, 1846, p. 362, pi. 26, figs. 9, 9a, 9b, 10. McCoy, Ann. Mag. Nat, HLst., 2d ser., 3, 1849, p. 121. D'Orbigny, Prodr. de Pal., 1, 1849, p. 25. Edwards and Haime, Mon. Polyp. Foss, Terr. Pal., 1851 (Arch Mus. Hist. Nat., 5), pp. 159, 308. McCoy, Cont. British Pal., 1854, p. 90; British Pal., Rocks and Foss., 1854, p. 92. Billings, Candian Nat. Geol., 1, 1856, p. 124; 3, 1858, p. 420; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 166; Pictet, 84243 Bull. 9215 17 258 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. COLUMN ARIA Continued. Traite Pal., 2d ed., 4, 1857, p. 448. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 317. Goldfuss, Petrefacta, 2d ed., pt. 1, 1862, p. 67. Ludwig, Paleontographica, 10, 1862, p. 191. Verrill, Amer. Jour. Sci., 3d ser., 3, 1872, p. 191. Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 132. Verrill, Ann. Mag. Nat. Hist., 4th ser., 9, 1872, p. 360. Nicholson, Rep. 44th Meeting British Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 89. Romin- ger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 89. Nicholson, Tab. Corals Pal. Period, 1879, p. 191 Roemer, Leth. geog., pt 1, Leth. Pal., 1883, p. 463. Miller, N. A. Geol. Pal., 1889, p. 179. Freeh, Paleontographica, 37, 1890, p. 84. Sherzer, Amer. Geol., 7, 1891, pp. 278-283. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 97. Weissermel, Zeits. d. d.geol.Gesell., 49, 1897, pp. 866, 868, 880. Zittel-Eastman Textb. Pal. 1., 1900, p. 79. Lambe, Cont. Canadian, Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 97. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71. Cumings, 32d Ann. Rep. Geol. Nat. Res. Indiana, 1908, p. 699. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 87. Favistella Dana, Wilkes U. S. Expl. Exped., 1838-1842, 7, Zoophytes, 1846, p. 538. D'Orbigny, Prodr. de Pal., 1, 1849, p. 24. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 229. Hall, Pal. New York, 1, 1847, p. 275; ibid., 2, 1852, p. 120. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 184; Rep. 44th Meeting British Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 89; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 21; Trans. Royal. Soc. Edinburgh, 27, 1876, p. 249 (obiter); Tab. Corals Pal. Period, 1879, p. 192. Zittel, Handb. Pal., 1, 1879, p. 230. Miller, N. A. Geol. Pal., 1889, p. 188. (Genotype: F. stellata Hall.) Palaeophyllum Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 168; Canadian Nat. Geol., 3, 1858, p. 422. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 219. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, pp. 68, 69. Zittel, Handb. Pal., 1, 1879, p. 228. Miller, N. A. Geol. Pal., 1889, p. 198. Sherzer, Amer. Geol., 7, 1891, pp. 284-289. James, Jour. Cin- cinnati Soc. Nat. Hist., 15, pt. 4, 1893, p. 146. Lambe, Ottawa Naturalist, 12, 1899, p. 217. (Genotype: Palseophyllum rugosum Billings.) COLUMNARIA ALVEOLARis Hitchcock. See Columnaria alveolata. Columnaria alveolata Goldfuss. Columnaria alveolata Goldfuss, Petrefacta Germanise, 1, 1826, p. 72, pi. 24, figs. 7a-c; 2d ed., pt. 1, 1862, p. 68. Edwards and Haime (part), Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. Hist. Nat,, 5), 1851, p. 309. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 229, pi. 4, fig. 10; Man. Geol., 1860, p. 94, fig. 80. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 317. Chapman, Canadian Jour., n. s., 6, 1861, p. 510, fig. 78; 8, 1863, p. 197, fig. 168; Expos. Min. Geol. Canada, 1864, p. 104, fig. 78; p. 169, fig. 168. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 1, fig. 7. Nicholson, Tab. Corals Pal. Period, 1879, p. 195, pi. 10, figs. 1, la. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 464, fig. 113. Chamberlin, Geol. Wisconsin, 1, 1883, p. 153, fig. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 6, fig. 3; pi. 7, fig. 2. Miller, N. A. Geol. Pal., 1889, p. 180, fig. 157. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 98. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 151. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, p. 98, pi. 6, figs. 1, la. Foerste, Amer. Geol., 31, 1903, p. 343. Hayes and Ulrich, U. S. Geol. Surv., fol. 95, illus. sheet, 1903, fig. 25. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71, fig. 110. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 703, pi. 1, figs. 4, 4a. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 312, pi. 11, fig. 3. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 259 Columnaria alveolata Continued. Columnaria sulcata Eaton, Geol. Textb., 2d ed., 1832, p. 4, pi. 5, fig. 51. Clarke, llth Rep. State Geol. New York, 1, 1894, p. 35; 45th Rep. New York State Mus. 1894, p. 351. Columnaria multiradiata Castelnau, Essai Syst. Sil. Amer. Sept., 1843, p. 44, pi. 19, fig. 1. Columnaria Blainvilli Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 166. Favistella stellata Hall, Pal. New York, 1, 1847, p. 275, pi. 75, figs, la-c. Em- mons, Amer. Geology, 1, pt. 2, 1855, p. 229, fig. .81 .Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 206, fig. 202. Nicholson, Rep. Pal. Prov. Onta- rio, pt. 2, 1875, p. 22; Geol. Surv. Ohio, Pal. 2, 1875, p. 185. White, Rep. U. S. Geogr. Surv. West 100th Merid., 4, 1877, p. 67, pi. 4, figs. 6a-c; llth Ann. Rep. Indiana Dep. Geol., Nat. Hist., 1882, p. 378, pi. 44, figs. 1, 2. Hall, 12th Rep., ibid., 1883, p. 247, pi. 1, figs. 2-4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 236, figs. Miller, N. A. Geol. Pal., 1889, p. 188, fig. 173. Favistella alveolaris Dana, Wilkes U. S. Expl. Exped. 1838-1842, 7, Zoophytes, 1846, p. 538. Columnaria stellata Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 91, pi. 28, fig. 1; pi. 34, fig. 3. Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 7, fig. 1. Keyes, Missouri Geol. Surv., 4, 1894, p. 116, pi. 13, fig. 3. Stones River-Richmond: An abundant and widespread fossil of the United States and Canada. COLUMNARIA ALVEOLATA-CALYCINA Foerste. See Columnaria calicina. Columnaria alveolata discreta Foerste. Columnaria alveolata discreta Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 124. Black River: Ottawa, Cloche Island, etc., Canada. Columnaria alveolata interrenta Foerste. Columnaria alveolata interventa Foersto, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 122, pi. 4, figs. la-j. Trenton (Cynthiana): Near Brannon, etc., central Kentucky. Golumnaria alveolata minima Foerste. Columnaria alveolata minima Foerste Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 123. Trenton (Cynthiana): Near New Forest, Kentucky. Columnaria alveolata rigid a (Billings). Columnaria rigida Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 167. Richmond: Lake St. John, Canada. COLUMNARIA BLAINVILLI Billings. See Columnaria alveolata. Columnaria calicina (Nicholson). Favistella (Columnaria) calicina Nicholson, Rep. 44th Meeting Brit. Assoc. Adv. Sci., Notes and Abstracts, 1874, p. 89. Favistella calicina Nicholson, Rep. Prov. Ontario, pt. 2, 1875, p. 24, fig. 9. Columnaria calicina Nicholson, Tab. Corals Pal. Period, 1879, p. 197, pi. 10, figs. 2, 2a; p. 198, fig. 28, la, b. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 464. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 98. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 102, pi. 6, fig. 4. 260 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Columnarla calicina Continued. Columnaria alveolata-calycina Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 313. Columnaria herzeri Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 91. Richmond: Cape Smyth, Lake Huron; Credit River at Streetsville, Ontario; east of White Cliff, Gamache Bay, Anticosti; Ohio; Kentucky; Indiana. Columnaria carterensis Safford. Columnaria carterensis Safford, Geol. Tennessee, 1869, p. 285. Black River (Carters): Carters Creek, etc., central Tennessee. Columnaria divergens Troost. Not recognized. Columnaria divergens Troost, 5th Geol. Rep. Tennessee, 1840, p. 73. Mountain limestone: Near Nashville, Tennessee. COLUMNARIA ERRATICA Billings. See Columnaria (Palseophyllum) stokesi. COLUMNARIA GOLDFUSSI Billings. SeeLyoporagoldfussiandNyctoporabillingsii. Columnaria halli Nicholson. Columnaria Emmons, Geol. New York, Rep. 2d dist., 1842, p. 276, fig. 2. Columnaria alveolata Hall, Pal. New York, 1, 1847, p. 47, pi. 12, figs, la-lc. Billings, Canadian Nat. Geol., 1, 1857, p. 124, figs. 9, 10. Nicholson, Pal. Prov. Ontario, 1863, pp. 8, 24, figs. 2, 9. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 139, fig. 70. Rominger, Foss. Corals Michigan, 1876, p. 89, pi. 34, figs. 1, 2, 4. Columnaria(?) Halli Nicholson, Tab. Corals Pal. Period, 1879, p. 200, fig. 28, 2; p. 201, fig. 29, pi. 10, figs. 3, 3a. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 465. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 85, pi. G, figs. 14-16. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 100, pi. 6, figs. 2, 2a. Foerste, Amer. Geology, 31, 1903, pp. 343, 345. Hayes and Ulrich, U. S. Geol. Surv., folio 95, illust. sheet, 1903, fig. 47. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71. Black River and Trenton: Canada; New York; Michigan; Kentucky; Tennessee; Minnesota; Illinois; Iowa. Plesiolype Cat. No. 35403, U.S.N.M. (Hayes and Ulrich). Columnaria? helderbergiae Swartz. Columnaria? helderbergise Swartz, Maryland Geol. Surv., Low. Dev., p. 207, 21, figs. 10, 11. Helderbergian (Keyser): Warrior Mountain, Alleghany County, Maryland. COLUMNARIA HERZERI ROMINGER. See Columnaria calicina. COLUMNARIA INJBQUALIS Hall. See Prismatophyllum insequale. COLUMNARIA INCERTA Billings. See Fletcheria incerta. Columnaria mamillaris Castelnau. Not recognii Columnaria mamillaris Castelnau, Essai Syot. Sil. PAmerique Septent., 1843, 45, pi. 19, fig. 3. Silurian?: Shores of Lake Huron. COLUMNARIA MULTIRADIATA Castelnau. See Columnaria alveolata. COLUMNARIA PARVA Billings. See Stylarsea parva. COLUMNARIA RIGIDA Billings. See Columnaria alveolata rigida. COLUMNARIA RUGOSA Lambe. See Columnaria (Palaeophyllum) stokesi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 261 COLUMNARIA STELLATA Rominger. See Columnaria alveolata. Columnaria (PalaBOphyllum) stokesi (Edwards and Haime). Lithostrotion Stokesi Edwards and Haime, Mon. Polyp. Foss. Terr. Pal., 1851, p., 440, pi. 20, fig. 2. Diphyphyllum Stokesi Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897 p. 152, pi. 17, figs. 5a, b. Sarcinula? obsoleta Hall, Geol. Lake Sup. Land Dist., Foster and Whitney's Rep., 1851, p. 213, pi. 29, figs. 2, a, b. Columnaria erratica Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 167. Palseophyllum rugosum Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 168; Canadian Nat. Geol., 3, 1858, p. 422. Columnaria rugosa Lambe, Ottawa Naturalist, 12, 1899, p. 217; Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 101, pi. 6, figs. 3, 3a, b. Richmond: Lake Winnipeg, Lake St. John, etc., Canada; Green Bay, Wisconsin. COLUMNARIA SULCATA Eaton. See Columnaria alveolata. Columnaria? Sutherland! Salter. Columnaria Sutherlandi Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, 1852, p. 231, pi. 6, fig. 8. Silurian (?): Seal Island, Wellington Channel, Arctic America. Columnaria (Palaeophyllum) thoini (Hall). Columnaria thomi Hall, Rep. U. S. Mexican Bound. Surv., Emory, 1857, pi. 20, figs. la-d. Cyathophylloides thomii Walcott, Pal. Univ., eer. 1, fas. 2, 1903, pi. 29. Richmond: El Paso, Texas. Holotype.Cat. No. 9851, U.S.N.M. Observation. Probably the same as Columnaria (Palseophyllum) stokesi (Edwards and Haime). Columnaria troosti Castelnau. Not recognized. Columnaria Troosti Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 44, pi. 19, fig- 2. Silurian(?): Kentucky. Columnaria vacua Foerste. Columnaria(?) halli James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 99. Columnaria vacua Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 313, pi. 11, fig. 2. Richmond: Ohio, Indiana, Kentucky, etc. Observation. This name has been proposed for the Richmond form of Colum- naria closely related to C. halli which is restricted to Mohawkian strata. Some of the references under C. halli doubtless refer in part to C. vacua. COLUMNOPORA Nicholson. See Calapoecia Billings. COLUMNOPORA RAYi Davis. See Calapoecia cribiformis. COMAROCYSTIS Haeckel. See Comarocystites Billings. COMAROCTSTITES Billings. Genotype: C. punctatus Billings. Comarocystites Billings, Canadian Jour., 2, 1854, pp. 268, 269; Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 288; Geol. Surv. Canada, dec. 3, 1858, p. 61. Chapman, Expos. Min. Geol. Canada, 1864, p. 109. Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 143; Geol. Surv. 262 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CO MAROCYSTITES Continued. Illinois, 3, 18G8, p. 291. Zittel, Handb. Pal., 1, 1879, p. 418. Miller, N. A. Geol. Pal., 1889, p. 233. Jaekel, Zeite. d. d. geol. Gesell. 52, 1900, p. 676. Zittel, Grundzuge Pal., 1, p. 184. Grabau and SMmer, N. A. Index Fossils, 2, 1910, p. 472. Comarocystis Haekel, Amphorideenu. Cystoideen, 1896, p. 70, pi. 1, figs. 4-4C. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 55. Comarocystites obconicus (Meek and Worthen). Comarocystites Shumardi var. obconicus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 144; Geol. Surv. Illinois, 3, 1868, p. 294, pi. 1, fig. 2a, b. Comarocystites obconicus Miller, N. A. Geol. Pal., 1889, p. 234. Keyes, Missouri Geol. Surv., 4, p. 132, pi. 18, fig. 1. Black River (Kimmswick): Cape Girardeau, Missouri. Comarocystites punctatus Billings. Comarocystites punctatus Billings, Canadian Jour., 2, 1854, p. 270, figs. 1-3; Geol. Surv. Canada Rep. Progr. for 1853-56, 1857, p. 288; Geol. Surv. Canada, dec. 3, 1858, p. 61, pi. 5, figs. 1, Ib, 2, 2b; also footnote, pi. 5. Grant, Trans. Ottawa Field Nat. Club, 1, 1880, p. 29, pi. 1, figs. 1-5. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 472. Comarocystis punctata Haeckel, Amphorideen u. Cystoideen, 1896, p. 70, pi. 1, figs. 4-4c. Trenton (Curdsville): Ottawa, Ontario. Comarocystites shumardi Meek and Worthen. Comarocystites Shumardi Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 143; Geol. Surv. Illinois, 3, 1868, p. 292, fig.; pi. 1, figs, la, b. Miller, N. A. Geol. Pal., 1889, p. 233, fig. 270. Keyes, Missouri Geol. Surv., 4, 1894, p. 132, pi. 18, fig. 2. Jaekel, Zeits. d. d. geol. Gesell., 52, 1900, p. 676. Black River (Kimmswick): Cape Girardeau, Missouri. COMAROCYSTITES SHUMARDI var. OBCONICUS Meek and Worthen. See Comarocystites obconicus. COMPSOCRINUS Miller. Genotype: Glyptocrinus harrisi Miller. Compsocrinus Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 219, 233. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, p. 180 (Rev. Pal., 3, p. 104). Miller, N. A. Geol. Pal., 1889, p. 234. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 516. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 165, fig. 78, 4. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194. Compsocrinus harrisi (Miller). Glyptocrinus harrisi Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 74, pi. 1, figs. 4, 4a. Compsocrinus harrisi Miller, ibid., 6, 1883, p. 234, pi. 7, figs. 4, 4a; N. A. Geol. Pal., 1889, p. 234, figs. 271, 272. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, figs. 8a, b. Bather, Treatise on Zool., pt, 3, Echino- derma, London, 1900, p. 165, fig. 78. Mariacrinus Harrisi Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, pp. 311, 326 (Rev. Pal., pt. 3, p. 104). James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 118. Richmond (Liberty): Waynesville, Ohio. Holotype and plesiotype.Cati. No. 40759, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 263 Compsocrinus miamiensis (Miller). Glyptocrinus miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 34, pi. 1, fig. 1; 6, 1883, p. 224. James, ibid., 19, 1897, p. 115. Compsocrinus miamiensis Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 518, pi. 21, figs. 7a, b. Richmond (Liberty): Waynesville, Ohio. HolotypeGat. No. 40760, U.S.N.M. CONASPIS OWENI Hall. See Ptychoparia oweni. CONCHICOLITES Nicholson. See Cornulites Schlotheim. CONCHIDIUM Linnaeus. Genotype: C. biloculare Linnaeus. Conchidium Linnaeus, Mus. Tessinianum, 1753, p. 90; Syst. Nat., XI, 2, 1760, p. 163. CEhlert, Fischer's Manuel de Conchyliologie, 1887, p, 1311. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 231; 13th Ann. Rep. New York State Geol., 1895, p. 842. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 321. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 273. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 394. Helmintholitus Linnaeus, Sys. Nat., 4, 1766, p. 163. Pentamerus Sowerby (not Pentamera Dumeril, 1806), Mineral Conchology, 1, 1813, p. 73. Gypidia Dalman, Kongl. Svenska Vet.-Akad. Handl., for 1827, 1828, pp. 93, 100. Zittel, Handb. Pal., 1, 1880, p. 694. Koken, Die Leitfossilien, Leipzig, 1896, p. 244, fig. 206. Pentamerus Billings, Canadian Jour., 6, 1861, p. 269. Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal. New York, 4, 1867, pp. 369, 373. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 52. Antirhynchonella Quenstedt, Petref. Deutschlands, Brach., 1871, p. 231. Zdimir Barrande, Syst. Sil. Boheme, 6, 1881, p. 171. Conchidium arcticum Holtedahl. Conchidium arcticum Holtedahl 2d Arct. Exp. "Fram," 1898-1902, No. 32, 1914, p. 5, pi. 6, figs. 5-7. Niagaran: Baadkap, North Devon, Arctic America. Conchidium biloculare Linnaeus. Conchidium biloculare Linnaeus, Syst. Nat., XI, 2, 1760, p. 163. Hall and Clarke, Pal. New York, 8, pt. 2/1893, p. 233, pi. 6, figs. 11-14. Schuchert, Bull. U. S. Geol. Surv. 87, 1897, p. 185. Pentamerus conchidium Emerson, Geol. Frobischer Bay; Nourses Narr. Hall's Arctic Exped., 1879, p. 578. Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, App., p. 225, 1852, pi. 5, figs. 9, 10. Silurian: Europe; Rescue Harbor, Arctic America. Conchidium colletti (Miller). Pentamerus colletti Miller, 17th Rep. State Geol. Indiana, 1891, p. 77, pi. 13, figs. 5, 6 (ad. sheets, 1891, p. 77). Conchidium colletti Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi. 66, figs. 16, 17. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 30. Cayugan (Kokomo): Kokomo, Indiana. Conchidium crassiplica Hall and Clarke. Conchidium crassiplica Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 235, 369, pi. 66, figs. 24, 25; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 367, pi. 11, figs. 3, 4.; 14th Rep. State Geol. New York for 1894, 1897, p. 367, pi. 11, figs. 3, 4. Niagaran (Louisville) : Near Louisville, Kentucky. 264 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CONCHIDIUM CRASSIRADIATUM Schuchert. See Conchidium crassoradius. Conchidium crassoradius (McChesney). Pentamerus crassoradius McChesney, Descr. New Pal. Foss., 1861, p. 87. Conchidium crassiradiatum Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 185. Niagaran (Racine): Milwaukee, Wisconsin. Conchidium decussatum (Whiteaves). Pentamerus decussatus Whiteaves, Canadian Rec. Sci., 1891, p. 295, pi. 3, figs. 3, 4. Calvin, Bull. Lab. Nat. Hist., State Univ. Iowa, 11, 1892, p. 164, pi. 11, figs. 1-3; pi. 12, fig. 2. Conchidium decussatum Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi. 65, figs. 1, 2; pi. 66, fig. 15. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 293, pi. 26, figs. 1, 2. Niagaran: Grand Rapids of the Saskatchewan, etc., Canada. Conchidium exponens Hall and Clarke. Conchidium exponens Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 66. figs. 6-9; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 10, figs. 20-23; 14th Rep. State Geol. New York for 1894, 1897, p. 366, pi. 10, figs. 20-23. Niagaran (Louisville): Louisville, Kentucky. Conchidium georgi Hall and Clarke. Conchidium georgise Hall and Clarke, Pal. New York, 8, pt. 2, 1895, p. 369, pi. 66, figs. 18, 19; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 367, pi. 11, figs. 10, 11; 14th Rep. State Geol. New. York for 1894, 1899, p. 367, pi. 11, figs. 10, 11. Clinton: Trenton, Georgia. Conchidium greenii Hall and Clarke. Conchidium greenii Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 235, 368, pi. 66, figs. 20-22; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 367, pi. 11, figs. 5-7; 14th Rep. State Geol. New York for 1894, 1897, p. 367, pi. 11, figs. 5-7. Niagaran (Racine) : Near Milwaukee, Wisconsin. Conchidium knappi (Hall and Whitfield). Pentamerus knappi Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 10-12. Nettelroth Kentucky Foss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 55, pi. 28, figs. 1-4. Conchidium knappi Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi. 64, figs. 11-13. Niagaran (Louisville) : Louisville, Kentucky; Tennessee. Plesiotype. Cat. No. 51352, U.S.N.M. Conchidium laqueatum (Conrad). Pentamerus laqueatus Conrad, Proc. Acad. Nat. Sci. Philadelphia, 7, 1855, p. 441. Hall, 42d Rep. New York State Mus. Nat. Hist., 1889, p. 384 (foot- note). Pentamerus nobilis Emmons, Man. Geol., 1860, p. 107, fig. Conchidium laqueatus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 232, fig. 168; p. 234, pi. 65, figs. 3-9. Kindle and Breger, 28th Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 434, pi. 3, figs. 1, 2; pi. 4, fig. 3; pi. 6. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 274. Niagaran: Delphi, Huntington, Georgetown, etc., Indiana. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 265 Conchldium legoense Foerste. Conchidium legoensis Foerste, Jour. Geol., 11, 1903, p. 711; Bull. Sci. Lab. Deni- son Univ., 14, 1909, p. 69, pi. 2, fig. 36A, B. Niagaran (Brownsport) : Short Creek, northeast of Lego, Tennessee. Conchldium lindenense Foerste. Conchidium lindenensis Foerste, Jour. Geol., 11, 1903, p. 711. Bull. Sci. Lab. Denison Univ., 14, 1909, p. 69, pi. 2, fig. 35A, B. Niagaran (Brownsport): Coon Creek, near Linden, Tennessee. Conchidium llttonl (Hall). Pentamerus littoni Hall, Pal. New York, 3, 1859, p. 262. Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 186; 27th Rep., 1875, pi. 10, figs. 8, 9. Nettelroth, Kentucky Foss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 58, pi. 27, figs. 12, 13. Conchidium littoni Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 64, figs. 9, 10. Foerste, Jour. Geol., 11, 1903, p. 711 (loc. occ.). Conchidium cf. littoni Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 435, pi. 3, figs. 3-6; pi. 4, figs. 1, 2, 4; pi. 5, figs. 4, 5. Niagaran : Hardin County, Tennessee (Brownsport) ; Louisville, Kentucky (Louis- ville); ?Georgetown, Indiana. Conchidium multicostatum (Hall). Pentamerus multicostatus Hall, Geol. Surv. Wisconsin, Rep. Progr., 1860, p. 1; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 373, pi. 13, figs. 22-24. Conchidium multicostatum Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 64, fig. 6; pi. 66, fig. 10. Conchidium cf . multicostatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 435, pi. 6, fig. 3. Niagaran: Wauwatosa and Waukesha, Wisconsin (Racine and Guelph); Connors Mills, Hamilton County, Indiana (Noblesville). Conchidium nettelrothi Hall and Clarke. Pentamerus knightii Nettelroth (not Sowerby), Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky, 1889, p. 57, pi. 29, figs. 1, 2, 17. Conchidium nettelrothi Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 234. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 273, fig. 332. Onondaga? (?Niagaran): Louisville, Kentucky. Cofypes. Cat. No. 51312, U.S.N.M. Conchidium nysius (Hall and Whitfield). Pentamerus nysius var. crassicosta Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 4-7. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 60, pi. 28, figs. 5-8. Pentamerus nysius var. tenuicostatua Nettelroth, ibid., 1889, p. 60. Conchidium nysius Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi. 64, figs. 1, 8, 27. Niagaran (Louisville) : Louisville, Kentucky; Tennessee. Conchidium obsoletum Hall and Clarke. Conchidium obsoletum Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 67, figs. 8, 9; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 11, figs. 1, 2; 14th Rep. State Geol. New York for 1894, 1897, p. 366, pi. 11, figs. 1, 2. Niagaran (Guelph): Genoa, Ottawa County, Ohio. 266 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Conchidium occidentale Hall. Pentamerus occidentalis Hall, Pal. New York, 2, 1852, p. 341, pi. 79, figs. 1, 2. Billings, Geol. Canada, 1863, p. 337, fig. 341. Nicholson, Pal. Prov. Ontario, 1875, p. 67, fig. 35. Whitfield, Geol. Wisconsin, 4, 1882, p. 314, pi. 17, fig. 10; pi. 23, figs. 1, 2. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 239. Conchidium(?) occidentalis Hall and Clarke, ibid., 1895, pi. 67, figs. 1-5. Lesley, Geol. Surv. Pennsylvania., Rep. P 4, 1889, p. 618, fig. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 273, fig. 331. Niagaran (Guelph): Gault and Guelph, Ontario; Point St. Vital, Lake Huron; Williamstown, Wisconsin. Conchidium scoparium Hall and Clarke. Conchidium scoparium Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 67, figs. 6, 7; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 11, figs. 8, 9; 14th Rep. State Geol. New York for 1894, 1897, p. 366, pi. 11, figs. 8,9. Niagaran (Guelph): Durham, Ontario. Conchidium tenulcostatum (Hall and Whitfield). Pentamerus nysius var. tenuicosta Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 1-3. Pentamerus complanatus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 53, pi. 27, figs. 14-16. Conchidium tenuicostatus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235. pi. 64, figs. 3-5. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 187. Niagaran (Louisville): Louisville, Kentucky. Pksiotypes. Cat. No. 51353, U.S.N.M. (Nettelroth's types of P. complanatus). Conchidium trilobatum Kindle and Breger. Conchidium trilobatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 436, pi. 5, figs. 1-3. Niagaran: Huntington, Indiana. Cotypes.Cat. No. 52933, U.S.N.M. Conchidium unguiforme (Ulrich). Gypidia unguif ormis Ulrich, Contrib. Amer. Pal., 1886, p. 28, pi. 3, fig. 2. Gypidula unguiformis Miller, N. A. Geol. Pal., 1889, p. 346. Conchidium unguiformis Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi. 66, figs. 1-4. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 436, pi. 6, figs. 4, 5. Niagaran: Louisville, Kentucky (Louisville); Carroll County, Indiana. CONCHITA RHOMBOIDALIS Wilckens. See Leptsena rhomboidalis. CONCHOPELTIS Walcott. Genotype: C. alternata Walcott. Conchopeltis W T alcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, p. 93; mus. ed., 1879, p. 93. Miller, N. A. Geol. Pal., 1889, p. 400. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 823. Berkey, Amer. Geol., 21, 1898, p. 278. Conchopeltis alternata Walcott. Conchopeltis alternata Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, p. 93; mus. ed., 1879, p. 93. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 823, fig. 2. Trenton: Trenton Falls, New York. CONCHOPELTIS COMPRESSA Miller. See Scenella compressa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 267 CONCHOPELTIS MiNNESOTENSis Walcott. See Scenella superba. CONCHOPELTIS OBTUSA Sardeson. See Scenella obtusa. CONILITES Pusch. See Actinoceras Bronn. CONILITES CAPRICORNULUS Troost. See Cyrtoceras capricornulus. CONOCARDIUM Dekoninck. Genotype: C. hibernicum Dekoninck. ConocardiumDekoninck, Desc. Animaux Fossiles, Suppl., Liege, 1851, p. 673. McCoy, British Pal. Rocks and Foss., 1854, p. 516. Woodward, Man. Mollusca, pt. 2, 1854, p. 292, pi. 19, fig. 5. Pictet, Traite" Pal., 2d ed., 3, 1855, p. 477. Barrande, Syst. Sil. Centre Boheme, 6, 1881, p. 66; Acephales: Ext. Syst. Sil. Centre Boheme, p. 103. Zittel, Handb. Pal., 2, 1881, p. 100. Dekoninck, Ann. Mus., Royal Hist. Nat. Belgique, 11, 1885, p. 99. Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 34. Barrois, Mem. Soc. Geol. Nord, 3, Lille, 1889, p. 155; Mem. Soc. Agriculture et Arts de Lille, 4th ser., 17, 1889, p. 155. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 202. Miller, N. A. Geol. Pal., 1889, p. 472. Whidborne, Mon. Dev. Fauna South England, 2, Pal. Soc., 1892, p. 18. Koken, Die Leitfossilien, Leipzig, 1896, p. 210, fig. 176, 1-3. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 261. Hind, Mon. Brit. Carb. Lam., 1, Pal. Soc., 1900, p. 449. Conocardlum antiquum (Owen). Pleurorhynchus antiqua Owen, Geol. Wisconsin, Iowa, and Minnesota, 1852, pi. 2, fig. 19. Conocardium antiquum Billings, Geol. Surv. Canada, Pal. FOBS., 1, 1865, p. 42 (adv. sheets, 1862) (gen. ref.). Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 187. Richmond : Lower Fort Garry, Red River, Canada. Holotype.C&i. No. 17897, U.S.N.M. Conocardium beecheri Raymond. Conocardium beecheri Raymond, Amer. Jour. Sci., 20, 1905, p. 374. Chazyan: Sloop Island, east of Valcour Island and at Chazy, New York (Val- cour); Mingan Islands, Canada (Mingan). CONOCARDIUM BLUMENBACHII Billings. See Euchasma blumenbachi. Conocardium elegantulum Billings. Conocardium elegantulum, Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 53. Anticostian (Jupiter River and Chicotte) : Southwest Point, Anticosti. Conocardium elrodi Miller. Conocardium elrodi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 705, pi. 20, fig. 14 (adv. sheets, 1891, p. 95). Niagaran (Laurel) : Hartsville, Indiana. Conocardium immaturum Billings. Conocardium immaturum Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 143, fig. 83a; Pah Foss., 1, Geol. Surv. Canada, 1865, p. 41, text fig. 43 (adv. sheets, 1862). Black River (Leray) : Pauquettes Rapids, Ottawa River, Canada. Conocardium monroicum Grabau. Conocardium monroicum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 171, pi. 16, figs. 1-3; pi. 20, figs. 14, 15; pi. 22, fig. 3. Upper Monroan: Salt shaft at Detroit, Michigan (Anderdon); opposite Amherst- burg, Ontario ( Amherstburg) ; Wayne County, Michigan (Lucas). 268 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Conocardium multistriatum Kindle and Breger. Conocardium multistriatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 449, pi. 1Q, fig. 4. Niagaran: Georgetown, Indiana. Conocardium niagarense Winchell and Marcy. Conocardium niagarensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 97, pi. 2, fig. 14. Niagaran (Racine) : Chicago, Illinois. Conocardium ornatum Winchell and Marcy. Conocardium ornatum Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. Ill, pi. 2, fig. 15. Niagaran (Racine): Chicago, Illinois. Conocardium oweni Kindle and Breger. Conocardium oweni Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 450, pi. 10, figs. 2, 3. Niagaran (Noblesville) : Little Deer Creek and Connors Mill, Hamilton County, Indiana. Conocardium richmondense Foerste. Conocardium richmondensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 71, pi. 2, fig. 21A, B. Richmond (Elkhorn) : Elkhorn Creek, three miles south of Richmond, Indiana. Conocardium tegulum Hall. Conocardium tegulum Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 415, pi. 68, figs. 30, 31 (adv. sheets, 1883). Niagaran: Locality not given. CONOCEPHALE Edwards. See Conocephalites Zenker. CONOCEPHALINA Gronwall. See Conokephalina Brogger. CONOCEPHALITES Zenker. Genotype: Conocephalus costatus Zenker. Conocophalites Zenker, Beitr. z. Naturg. Urwelt., 1833, p. 48. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. Centre Boheme, 1, 1852, p. 415, pis. 13, 14, 29. Pictet, Traite Pal., 2d ed. 2, 1854, p. 493. Hall, 16th Ann. Rep. New York State Cab. Nat. Hist., 1863, pp. 147, 148. Chapman, Cana- dian Jour., n. s., 8, 1863, p. 32, fig. 150; p. 192, fig. 161; Expos. Min. Geol. Canada, 1864, p. 140. Hall, Trans. Albany Inst., 5, 1867, p. 129. Billings, Canadian Nat., n. s., 6, 1872, p. 474; Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 72. Meek, U. S. Geol. Expl. 40th Parl., 4, 1877, p. 22. Wood- ward, Geol. Mag., dec. 3, 1, 1884, p. 343. Walcott, Science, 3, 1884, p. 281. Zittel, Handb. Pal., 2, 1855, p. 600. (Ehlert, Bull. Soc. Geol. de France, 3d ser., 23, 1895, p. 319. Wallerius, Unders. ofver. Zonen med. Agnostus laeviga- tus i Vestergotland, Lund, 1895, pp. 49, 50; Geol. Foren. Stockholm Forhandl. 18, 1896, p. 167. Koken, Die Leitfossilien, Leipzig, 1896, p. 21. Jaekel, Zeite. d. d. geol. Gesell., 53, 1901, p. 156. Conocephale Edwards, Hist. Nat. Crustaces, 3, 1840, p. 335. Conocephalus Burmeister, Org. der Tril., Berlin, 1843, p. 85. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 541, 556. Emmrich, ibid., 1845, p. 43. Bur- meister, Org. Tril. London, 1846, p. 72. Freeh, Leth. geog., 1 Th., Leth. Pal., 2, 1897, p. 26, footnote. CONOCEPHALITES CALCIFEBUS Walcott. See Lonchocephalus calciferus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 269 Conocephalltes(?) contiguus Matthew. Conocephalites(?) contiguus Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 58, pi. 13, figs. 14a, b. Canadian (Bretoniau Div. C 3a): St. John, New Brunswick. CONOCEPHALITES DEViNEi Matthew. See Ptychoparia? deviuei. CONOCEPHALITES HARTii Walcott. See Dikelocephalus harti. CONOCEPHALITES HISINGERI Matthew. See Lisania? hisingeri. CONOCEPHALITES MINUTUS Bradley. See Ptychoparia minuta. CONOCEPHALITES OWENI Hall. See Ptychoparia oweni. CONOCEPHALITES ZENKERI Billings. See Ptychoparia zenkeri. CONOCEPHALUS Burmeister. See Conocephalites Zenker. CONOCERAS ANGULOSUM Saemann. See Actinoceras bigsbyi. CONOCORYPHE (PTYCHOPARIA) GALLATiNENSis Meek. See Ptychoparia oweni. CONOKEPHALINA Brogger. Genotype: Conocephalites ornatus Brogger. Conokephalina Brogger, Geol. Foren. i. Stockholm Forhandl., No. 101, 8, pt. 3, 1886, p. 206. Walcott, Research in China, 3, Carnegie Inst., Washington, Publ. 54, 3, 3913, p. 137, pi. 13; Smiths. Misc. Coll., 57, 1914, p. 387. Conocephalina Gronwall, Danmarks Geol. Unders. Raekke, 2, No. 13, 1902, p. 150. Lorenz, Zeits. d. d. geol. Gesell., 58, pt. 2, 1906, p. 64. Conokephalina? cristata (Billings). Dikelocephalus cristatus Billings, Canadian Nat. Geol., 5, 1860, p. 312, fig. 10; Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 258; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 404, fig. 381. Dicellocephalus cristatus Matthew, Trans/ Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Conokephalina? cristata Walcott, Smiths. Misc. Coll., 57, 1914, p. 350 (gen. ref.). Ozarkian? (Levis-erratic): Point Levis, Quebec. Conokephalina inexpectans (Walcott). Dicellocephalus inexpectans Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 90, pi. 1, fig. 10. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Dicellocephalus inexpectatus Freeh, Leth. geog., 1, Th., Leth. Pal., 2, 1897, p. 44, footnote. Conokephalina inexpectans Walcott, Smiths. Misc. Coll., 57, 1914, p. 351 (gen. ref.). Lower Pogonip: Ridge east of Hamburg Ridge, Eureka district, Nevada. Cotypes.C&t. No. 24564, U.S.N.M. Conokephalina megalops (Billings). Dikelocephalus megalops Billings, Canadian Nat. Geol., 5, 1860, p. 311, fig. 9; Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 257; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 403, fig. 380. Dicellocephalus megalops Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Conokephalina megalops Walcott, Smiths. Misc. Coll., 57, 1914, p. 351 (gen. ref.). Ozarkian? (Levis-erratic): Point Levis, Quebec. Conokephalina whitehallensis (Walcott). Conocephalina whitehallensis Walcott, Smiths. Misc. Coll., 57, 1912, p. 269, pi. 44, figs. 9-lla. 270 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Conokephallna whltehallensls Continued. Upper Cambrian or Ozarkian (Potsdam): Whitehall, Washington County, New York. Eolotype and paratypes. Cat. Nos. 58579-58581, U.S.N.M. CONOLICHAS Dames. Genotype: Lichas sequiloba Steinhardt. Conolichaa Dames, Zeits. d. d. Geol. Gesell., 29, 1877, p. 806. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, pp. 30, 40, 87. Zittel, Handb. Pal., 2, 1885, p. 624. Hall and Clarke, Pal. New York, 7, 1888, p. xxxix, fig. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 754. Koken, Die Leit- fossilien, Leipzig, 1896, p. 30. Gurich, Neues Jahrb. f. Min., Geol. Pal., 14, Beilage-Bd., 1901, p. 522, pi. 20, fig. 16. Conolichas cornutus (Clarke). Lichas (Conolichas) cornutus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 749, figs. 72, 73. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 237. Trenton: Trenton Falls, New York; Lake Winnipeg, Canada. CONOPHRYS PUSILLA Brogger. See Shumardia pusilla. CONOPHYLLUM Hall. See Cystiphyllum Lonsdale. CONOTRETA Walcott. Genotype: C. rusti Walcott. Conotreta Walcott, Proc. U. S. Nat. Mus., 12, 1890, p. 365 (extract 1889). Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 104, 167; llth Ann. Rep. New York State Geol., 1894, p. 250. Miller, N. A. Geol. Pal., 1st App., 1892, p. 687. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 308; 2d ed., 1913, p. 376. Matthew, Trans. Royal Soc. Canada, 2d ser., 7, sec. 4, 1901, p. 94. Conotreta rusti Walcott. Conotreta rusti \Valcott, Proc. U. S. Nat. Mus., 12, 1890, p. 365, figs. 1-4 (extract 1889). Hall and Clarke, Pal New York, 8, pt. 1, 1892, p. 104, pi. 4K, figs. 16-21. Trenton: Trenton Falls, New York; Covington, Kentucky. Cotypes.Czt. No. 18443, U.S.N.M. CONOTUBULARIA Troost. See Actinoceras Bronn. CONOTUBULARIA BRONGNiARTH Troost. See Orthoceras brongniarti Troost. CONOTUBULARIA CuviBRn Troost. See Actinoceras cuvieri. CONOTUBULARIA DEFRANCII Troost. See Orthoceras defranci. CONOTUBULARIA GOLDFUSSI Troost. See Orthoceras goldfussi. CONRADELLA Ulrich and Scofield. See Phragmolites Conrad. CONRADIA Hall. See Dinobolus Hall. CONSTELLARIA Dana. Genotype: Ceriopora constellata (Van Cleve, MS.), Dana. Constellaria Dana, Zoophyta, 1846, p. 537. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851, pp. 154, 278. Pictet Traite" de Pal., 2d ed., 4, 1857, p. 154. Nicholson, Pal. Ohio, 2, 1875, p. 214; Pal. Tab. Corals, 1879, p. 292. Zittel, Handb. Pal., 1, 1880, p. 615; Gem Monticulipora, 1881, p. 97. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 156; 6, 1883, p. 265. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 475. James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 29.- Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 374, 423. Rominger, Amer. Geol., BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 271 CONSTELLARIA Continued. 6, 1890, p. 113. Ulrich, Geol. Minnesota, 3, 1893, p. 311; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 276. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 117. Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 34. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 135. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 742. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 218, 219; Zittel-Eastman Textb. Pal., 2ded., 1913, p. 334. Stellipora Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 281 (in part). Dybowski, Die Chsetetiden d. Ostbalt, Silur-Form., 1877, p. 42. CONSTELLARIA ANTHELOIUEA Milne-Edwards. See Constellaria florida. Constellaria constellata (Van Cleve) Dana. Ceriopora constellata Van Cleve (MS.) Plates of Fossils. Constellaria constellata Dana, Zoophyta, 1846, p. 537, pi. 52, figs. 6, 6a. Observation. Van Cleve's illustrations could apply equally well to C. florida or C. polystomella. His specimens were said to be from the vicinity of Dayton, Ohio, and hence were probably of the latter species. In view of this uncertainty the name had better be dropped. CONSTELLARIA CONSTELLATA-PLANA Nickles and Bassler. See Constellaria florida plana. CONSTELLARIA CONSTELLATA PROMINENS Nickles and Bassler. See Constellaria florida prominens. Constellaria emaclata (Ulrich and Bassler). Constellaria florida var. emaciata Hayes and Ulrich, U. S. Geol. Surv., folio 95, illustration sheet, 1903, fig. 30. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 37. Constellaria emaciata Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 44, pi. 1, figs. 7, 8. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 126. Trenton: Columbia, Nashville, etc., Tennessee (Bigby and Catheys); Kentucky (Cynthiana). Coupes. -Cat. No. 43208, U.S.N.M. Constellaria flscherl Ulrich. Constellaria fischeri Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 270, pi. 14, figs. 6-6c. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 214. Trenton: Winchester, etc., Kentucky (Cynthiana); Nashville, etc., Tennessee (Catheys). Holotype Cat. No. 44068, U.S.N.M. Constellaria florida Ulrich. Constellaria florida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 257; 6, 1883, p. 267, pi. 14, figs. 2-2f; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 276, fig. 461. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 54, pi. 3, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 136, fig. 188i. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 334, fig. 484. Monticulipora (Constellaria) polystomella (not Nicholson) James and James, (in part) Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 30; James, ibid., 18, 1896, p. 118. Chsetetes constellatus Quenstedt (not Van Cleve) Roehren-und Sternkorallen, 1881, p. 79, pi. 146, figs. 21-25. Constellaria constellata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 213. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 804, pi. 12, figs. 4-4e; pi. 27, fig. 19. 272 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Constellaria florida Continued. Stellipora antheloidea D'Orbigny (not Hall), Prodr. de Pal., 1, 1850, p. 22. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 281. Constellaria antheloidea Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 279, pi. 20, figs. 7, 7b. Nicholson, Pal. Ohio, 2, 1875, p. 214; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 92, pi. 5, fig. 10. James, Paleontologist, No. 2, 1878, p. 13. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 476, fig. 116 Nicholson, Pal. Tab. Corals, 1879, p. 301, pi. 14, figs. 5, 5b. White, llth Ann. Eep. Indiana Geol. Nat. Hist. Surv., 1882, p. 379, pi. 46, figs. 1-3. Hellipora (Constellaria) antheloidea Rominger (not Hall), Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 118. Maysville (Fairview): Cincinnati, Ohio and vicinity; Tennessee. CotypesG&t. No. 43808, U.S.N.M. CONSTELLARIA FLORIDA var. EMACIATA Hayes and Ulrich. See Constellaria emaciata. Constellaria florida plana Ulrich. Constellaria florida var. plana Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 269, pi. 14, fig. 4. Constellaria constellata-plana Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 213. Maysville (Fairview): Cincinnati, Ohio, and vicinity. Holotype. Cat. No. 43645, U.S.N.M. Constellaria florida prominens Ulrich. Constellaria florida var. prominens Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 269, pi. 14, fig. 3. Constellaria constellata-prominens Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 214. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1907, p. 806, pi. 27, fig. 18. Constellaria prominens Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 52, pi. 2, fig. 15. Eden (McMicken) and Maysville (Fairview) : Cincinnati, Ohio, and vicinity. Holotype. Gat. No. 43644, U.S.N.M. Constellaria limitaris (Ulrich). Stellipora limitaris Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 126, pi. 12, figs. 8-8c. Constellaria limitaris Ulrich, ibid., 6, 1883, p. 269, pi. 14, fig. 5, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 806, pi. 13, fig. 2; pi 28, fig. 2. Richmond (Waynesville-Whitewater): Clarksville, Waynesville, etc., Ol Versailles, etc., Indiana. Cotypes and plesiotypes.G&t. Nos. 43642, 43643, U.S.N.M. Constellaria parva Ulrich. Constellaria parva Ulrich, Geol. Surv. Illinois, 8, 1890, p. 424, pi. 34, figs. 1-lb. Monticulipora (Constellaria) parva J. F. James, Jour. Cincinnati Soc. Nat. 18, 1896, p. 119. Richmond (Fernvale): Wilmington, Illinois. Sections of kolotype. Cat. No. 43747, U.S.N.M. Constellaria polystomella Nicholson. Constellaria polystomella Nicholson, Pal. Ohio, 2, 1875, p. 215, pi. 22, figs. 7, 7a.- Whitfield, Geol. Surv. Wisconsin, 4, 1882, p. 257, pi. 12, figs. 3, 4. Chaml lin, Geol. Wisconsin, 1, 1883, p. 173, fig. Nickles and Bassler, Bull. U. Geol. Surv., 173, 1900, p. 214. Cumings, 32d Ann. Rep. Dep. Geol. Nat Res. Indiana, 1908, p. 808, pi, 13, figs. 1, Ib; pi. 18, fig. 1. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 273 Constellaria polystomella Continued. Stellipora polystomella Miller, N. A. Geol. Pal., 1889, p. 203, fig. 217. Monticulipora (Constellaria) polystomella (in part) J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, p. 118. Richmond: Delafield, Wisconsin (Maquoketa) ; Wilmington, Illinois (Fernvale); Ohio; Indiana; and Kentucky (Waynesville- White water). CONSTELLARIA PROMINENS Nickles. See Constellaria florida prom in ens. Constellaria punctata (Whitfield). Monticulipora punctata Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 71; Geol. Surv. Wisconsin, 4, 1882, p. 249, pi. 11, figs. 3, 4. Buell, Trans. Wisconsin Acad. Sci., 5, 1882, p. 189. Constellaria punctata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 214. Richmond (Maquoketa): Delafield and Iron Ridge, Wisconsin. Constellaria teres Ulrich and Bassler. Constellaria teres Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 37. Hayes and Ulrich, U. S. Geol. Surv., fol. 95, illus. sheet, 1903, fig. 31. Trenton (Bigby and Catheys): Columbia, etc., Tennessee; Kentucky. Cotypes.C&t. No. 43205, U.S.N.M. Constellaria varia Ulrich. Constellaria varia Ulrich, Geol. Minnesota, 3, pt. 1, 1893, p. 311, pi. 21, figs. 1-7. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 219-221, figs. 120-122. Trenton: Cannon Falls, etc., Minnesota (Prosser); Belleville, Ontario; Belfast, Tennessee. Ordovician (Wassalem and Jewe) : Uxnorm and Jewe, Esthonia, Russia. Cotypes and plesiotypes.Ca,t. Nos. 43546, 57300, 57301, U.S.N.M. CONULARIA Miller. Genotype: C. quadrisulcata Miller. Conularia Miller, in Sowerby's Min. Conchology, 3, 1821, p. 107. Dekoninck, Desc. Animaux Fossiles, Liege, 1842-1844,1 844, p. 494. Hall, Pal. New York, 1, 1847, p. 222, footnote. Sandberger, Neues Jahrb. f . Min., etc., 1847, p. 11. Brown, Illust. Foss. Conch. Great Britain and Ireland, 1849, p. 43. D'Orbigny, Prodr. de Pal., 1, 1849, p. 9. Dana, Wilkes U. S. Expl. Exped., 1838-1842, Geol., 1849, p. 708. Woodward, Man. Mollusca, pt. 2, 1854, p. 206, fig. 108. McCoy, British Pal. Rocks and Foss., 1854, p. 287. Emmons, Amer.Geology, 1, pt. 2, 1855, p. 207. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 319. Hall, Pal. New York, 3, 1859, p. 347, and footnote. Chapman, Expos. Min. Geol. Canada, 1864, p. 122. Barrande, Syst. Sil. Centre Boheme, 3, 1867, p. 1. Salter, Cat. Camb. Sil. Foss., 1873, p. 67. Etheridge, Geol. Mag., 10, 1873, p. 295. Hall, Pal. New York, 5, pt. 2, 1879, p. 205. Lindstrom, Kongl. Sven. Vet.- Akad. Handl., 19, No. 6, 1881, p. 39. Zittel, Handb. Pal., 2, 1882, p. 315. Koninck Ann. Mus. Royal Hist. Nat. Belgium, 8, 1883, p. 219. Miller, N. A. Geol. Pal., 1889, p. 390; 1st App., 1892, p. 692. Holm, Sveriges Geol. Unders., Ser. C, No. 112, 1893, p. 113, 154. Matthew, Canadian Rec. Sci., 5, 1893, p. 433. A. Ulrich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 8, 1893, p. 25. Koken, Die Leitfossilien, Leipzig, 1896, p. 98, fig. 76. Ruedemann, Amer. Geol., 17, 1896, p. 158; 18, p. 65. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 284. Pilsbry, Zittel, Eastman Textb. Pal., 1, 1900, p. 490; 2d ed., 1913, p. 572. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 213; Bull. New York State Mus., 45, 1901, p. 213. Grabau and Shimer, N. A. Index Fos- sils, 2, 1910, p. 12. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 950. 84243 Bull. 9215 18 274 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Conularia amazonica Clarke. Conularia amazonica Clarke, Archives Mus. Nac. Bio de Janeiro, 10, author's Engl. ed., 1900, p. 20, pi. 2, figs. 23-25. Silurian: Rio Trombetas, Brazil. Conularia asperata Billings. Conularia asperata Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 21. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 201, pi. 21, figs. 2, 2a. Richmond : Macasty Bay, Anticosti (English Head) : Lake Winnipeg, Canada. Conularia bifurca Ringueberg. Conularia bifurca Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 18, pi. 2, fig. 11. Clinton (Rochester): Lockport, New York. Conularia bilineata Foerste. Conularia bilineata Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 547, pi. 37A, fig. 12. Upper Medinan (Brassfield): Soldiers Home, near Dayton, Ohio. Conularia formosa Miller and Dyer. Conularia formosa Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 38, pi. 1, figs. 12, 12a. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 958, pi. 42, fig. 2. Maysville and Richmond: Versailles, etc., Indiana; Cincinnati, Ohio, and vicinity. Conularia gattingeri Safford. Conularia Gattingeri Safford, Geol. Tennessee, 1869, p. 289. Trenton: Nashville, Tennessee. Conularia gracilis Hall. Conularia gracile Hall, Pal. New York, 1, 1847, p. 224, pi. 59, figs. 7a, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 144, figs. Ruedemann, Amer. Geol., 17, 1896, pp. 158-165, pi. 18, figs. 1-6; pi. 9, figs. 1-7; 18, pp. 65-71, pi. 2, figs. 1, 2; 15th Rep. State Geol. New York for 1895, 1898, p. 701, pis. 1-4; 49th Rep. New York State Mus., 2, 1898, p. 701, pis. 1-4. Trenton: Near Middleville and Dolgeville, New York. Conularia granulata Hall. Conularia granulata Hall, Pal. New York, 1, 1847, p. 223, pi. 59, figs. 5a, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, figs. 5a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 144, figs. Trenton: Middleville, New York. Conularia hudsoni Emmons. Conularia Hudsoni Emmons, Amer. Geology, 1, pt. 2, 1855, p. 208, fig. 65; Man. Geol., 1860, p. 103, fig. 93. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 144, text fig. Cincinnatian (Pulaski): Lorraine, Jefferson County, New York. Conularia indentata Conrad. Conularia indentata Conrad, Proc. Acad. Nat. Sci. Philadelphia, 7, 1854, p. 31. Trenton: Galena, Illinois. Conularia infrequens Hall. Conularia infrequens Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 321, pi. 33, fig. 7; Trans. Albany Inst., 10, 1883, p. 73. Niagaran (Waldron): Waldron, Indiana. BIBLIOGRAPHIC LIST OF GENEKA AND SPECIES. 275 Conularia laqueata Conrad. Conularia laqueata Conrad, 5th Ann. Rep. New York Geol. Surv., 1841, p. 57. Hall, 15th Rep. New York State Cab. Nat. Hist., 1861, pi. 11, fig. 20. Clinton (Rochester): Albion, Wayne County, New York. Conularia longa Hall. Conularia longa Hall, Pal. New York, 2, 1852, p. 295, pi. 65, figs. 2a-d. Clinton (Rochester): Lockport, New York. Conularia magnifica Spencer. Conularia magnifica Spencer, Canadian Nat., n. B., 9, 1879, p. 63; Trans. Acad. Sci. St. Louis, 4, 1884, p. 607, pi. 9, figs. 1, la, b; Bull. Mus. Univ. State Missouri, 1, 1884, p. 58, pi. 9, figs. la-b. Niagaran dolomite: Hamilton, Ontario. Conularia multipuncta Ringueberg. Conularia multipuncta Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 18, pi. 2, fig. 10. Clinton (Rochester): Lockport, New York. Conularia niagarensis Hall. Conularia niagarensis Hall, Pal. New York, 2, 1852, p. 294, pi. 65, figs, la-h. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 286, pi. 5, fig. 16; Geol. Surv. Ohio, Pal., 7, 1898, p. 547, pi. 30, fig. 16. Grabau, Bull. New York State Mus., 45, 1901, p. 214, fig. 145; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 214, fig. 145. Early Silurian: Lockport, etc., New York (Rochester); Dayton, Ohio (Brassfield). Conularia papillata Hall. Conularia papillata Hall, Pal. New York, 1, 1847, p. 223, pi. 59, figs. 6a, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, fig. 6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 145, figs. Trenton: Near Middleville, New York. Conularia quadrata Walcott. Conularia quadrata Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, p. 93; mus. ed., 1879, p. 93. Trenton: Prospect Bridge, Oneida County, New York. Conularia quadrisulcata (Miller?) Hall. Conularia quadrisulcata Miller in Sowerby's Min. Conch., 3, 1821, p. 107. Hall, Geol. New York, 4, 1843, p. 110, fig. 2; p. Ill, tab. ill. 17, fig. 2. Yandell and Shumard, Cont. Geol. Kentucky, 1847, p. 15. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 145, fig. Miller, N. A. Geol. Pal., 1889, p. 390, fig. 644. Silurian: Europe; Lockport, Rochester, etc., New York (Niagaran). Conularia rugosa Spencer. Conularia rugosa Spencer, Bull. Missouri State Mus., 1, 1884, p. 59, pis. 8, 9, figs. 2, 2a; Trans. Acad. Sci. St. Louis, 4, 1884, p. 608, pis. 8, 9, figs. 2, 2a. Niagaran dolomite: Hamilton, Ontario. Conularia splendida Billings. Conularia splendida Billings, Cat. Sil. Foss Anticosti, Geol. Surv. Canada, 1866, p. 21. Richmond (Charleton) : Charleton Point, Anticosti. 276 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Conularia transversa RLngueberg. Conularia transvecsa Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 19, pi. 2, fig. 12. Clinton (Rochester): Lockport, New York. Conularia trentonensis Hall. Conularia trentonensis Hall, Pal. New York, 1, 1847, p. 222, pi. 59, figs. 4a-f. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, figs. 4a-f . Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 609. Hall, Pal. New York, 3, 1859, p. 347-348. Chapman, Canadian Jour., n. s., 7, 1862, p. 118, fig. 116; 8, 1863, p. 199, fig. 191; Expos. Min. Geol. Canada, 1864, p. 122, fig. 116; p. 171, fig. 191. Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., 1879, p. 578. Ami, Trans. Ottawa Field Nat. Club, 1, 1882, p. 64. Chamberlin, Geol. Wisconsin, 1, 1883, p. 167, fig. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 146, 2 figs. Ruedemann, Bull. New York State Mus., 8, 1901, p. 520. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 188, pi. 3, figs. 7, 8. Trenton: Middleville, Trenton Falls, etc., New York; Canada; Iowa; New Jersey; etc. Conularia trentonensis multicosta Ruedemann. Conularia trentonensis var. multicosta Ruedemann, Bull. New York State Mus., 162, 1912, p. 115. Trenton: Watervliet, New York (Snake Hill); Schoharie Junction and Schenec- tady, New York (Schenectady). Conularia trentonensis rogersensis Foerste. Conularia trentonensis rogersensis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 142, pi. 1, fig. 16. Trenton (Upper): Rogers Gap, Kentucky. Conularia triangulata Raymond. Conularia triangulata Raymond, Amer. Jour. Sci., 4th ser. 20, 1905, p. 379; Ann. Carnegie Mus., 4, 1908, p. 216, pi. 54, fig. 18. Chazyan (Valcour): Valcour Island, New York. Conularia wilkinsi Spencer. Conularia wilkinsi Spencer, Bull. Missouri State Mus., 1, 1884, p. 59, pi. 8, fig. 3; Trans. Acad. Sci. St. Louis, 4, 1884, p. 609, pi. 8, fig. 3. Niagaran dolomite: Hamilton, Ontario. CORALLIDOMUS Whitfield. Genotype: C. concentricus Whitfield. Corallidomus Whitfield, Geol. Surv. Ohio, Pal., 7, 1893, p. 493. Miller, N. A. Geol. Pal., 2d App., 1897, p. 780. Corallidomus concentricus Whitfield. Corallidomus concentricus Whitfield, Geol. Surv. Ohio, Pal., 7, 1893, p. 493, pi. 13, fig.; Ulrich, ibid., pi. 55, figs. 15, 16. Richmond (Liberty): Brown County, Ohio. CORALLIUM GOTHLANDICUM Linnaeus. See Favosites gothlandica. CORDYLOCRINUS Angelin. Genotype: C. comtus Angelin. Cordylocrinus Angelin, Icon. Crinoid, 1878, p. 3, pi. 23, fig. 6. Zittel, Handb. Pal., 1, 1879, p. 365. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- phia, 1881, pp. 232, 234 (Rev. Pal., pt. 2, pp. 58, 60); 1886, p. 337; 1890, p. 353. Miller, N. A. Geol. Pal., 1889, p. 234. Treatise on Zool. (Lankester), pt. 3, 1900, p. 156. Zittel, Grundzuge Pal., 1, 1910, p. 157. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 277 Cordylocrinus? dubius Rowley. Cordylocrinus? dubius Rowley, Amer. Geol., 34, 1904, p. 272, pi. 16, figs. 20-22. Niagaran (Bainbridge) : Near St. Mary's, Ste. Genevieve County, Missouri. CORDYLOCRINUS PARVUS Wachsmuth and Springer. See Cordylocrinus plumosus. Cordylocrinus plumosus (Hall). Platycrinus plumosus Hall, Pal., New York, 3, 1859, pp. 113, 148, pi. 4, figs. 1-5. Platycrinus parvus Hall, Pal., New York, 3, 1859, p. 114, pi. 4, figs. 6-9. Cordylocrinus plumosus Wachsmuth and Springer, Rev. Pal., pt. 2, 1881, p. 61; Proc. Acad. Nat. Sci. Philadelphia, 33, 1882, p. 235; N. Amer. Cri. Cam., 2, 1897, p. 737; Atlas, pi. 75, fig. 20. Talbot, Amer. Jour. Sci., 20, 1905, p. 28, fig. 3, pi. 3, figs. 2, 4. Cordylocrinus parvus Wachsmuth and Springer, Rev. Pal., pt. 2, 1881, p. 60; Proc. Acad. Nat. Sci. Philadelphia, 33, 1882, p. 234; N. Amer. Crin. Cam., 2, 1897, p. 737. Clematocrinus plumosus Jaekel, Zeit. d. d. Geol. Gesell., 49, 1897, Verhandl., p. 47. Clematocrinus parvus Jaekel, ibid., p. 737. Helderbergian (Manlius transition beds or Coeymans) : Jerusalem Hill and North Litchfield, New York. COREMATOCLADUS Ruedemann. Genotype: C. densa Ruedemann. Corematocladus Ruedemann, Bull. New York State Mus., 133, 1909, p. 205. Corematocladus densa Ruedemann. Corematocladus densa Ruedemann, Bull. New York State Mus., 133, 1909, p. 206, pi. 3, figs. 1-5. Black River (Lowville) : Glens Falls, New York. CORNULITES Schlotheim. Genotype: C. eerpularius Schlotheim. Cornulites Schlotheim, Petrefaktenkund, 1820, p. 378. McCoy, Brit. Pal. Rocka and Foss., 1854, p. 63. Barrande, Syst. Sil. Centre Bokeme, 3, 1867, p. 167. Nicholson, Amer. Jour. Sci., 3d ser., 3, 1872, pp. 202, 204. Hall, Pal. New York, 5, pt. 2, 1879, p. 164. Zittel, Handb. Pal., 1, 1879, p. 564. Vine, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 378, 379. Hall, Pal., New York, 7, sup. 1888, p. 8. Miller, N. A. Geol. Pal., 1889, p. 517. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 150. Hinde, Zittel-Eastman Textb. Pal., 1, 1900, p. 253. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 161; Bull. New York State Mus., 45, 1901, p. 161. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 238. Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 139. Conchicolites Nicholson, Amer. Jour. Sci., 3d ser., 3, 1872, pp. 203-204; Geol. Mag., 10, 1873, p. 54; Cincinnati Quart. Jour. Sci., 1, 1874, p. 236. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 7, p. 238. Zittel, Handb. Pal., 1, 1879, p. 564. Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 260. Vine, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 378, 381. Miller, N. A. Geol. Pal., 1889, p. 517. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 237. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 139 (Genotype C. gre- garius Nicholson). Ortonia Nicholson, Geol. Mag., 9, 1872, pp. 447, 448; Rept. 42d Meeting Brit, Assoc. Adv. Sci., Notes and Abstracts, 1873, p. 119; Cincinnati Quart. Jour. Sci., 1, 1874, p. 236. Miller, Cincinnati Quart Jour. Sci., 1, 1874, pp. 9, 10. 238. Zittel, Handb. Pal., 1, Munich, 1879, p. 564. Etheridge, Geol. Mag., dec. 2, 7, 1880, p. 366. Vine, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 378. Nicholson, Rept. Pal. Prov. Ontario, pt. 1, 1874, p. 122. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 239. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 139 (Genotype O. conica Nicholson). 278 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cornulites arcuatus Conrad. Cornulites arcuatus Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 276, pi. 17, fig. 8. Hall, Nat. Hist. New York, Geol., 4, 1843, p. 109, fig. 3; p. 110; tab. ill. 16, fig. 3. Emmons, Man. Geol., 1860, p. 108, fig. 98. Hall, Pal. New York, 7, Sup., 1888, p. 19, pi. 116A, fig. 9. Miller, N. A. Geol. Pal., 1889, p. 518, fig. 937. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 105, pi. 4, figs. 1-5. Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 201, pi. 22, figs. 4-6. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 239, fig. 1524. Silurian (Lockport-Guelph, Cobleskill): Albion, Orleans County, etc., New York. Upper Monroan (Amherstburg): Detroit River, opposite Amherstburg, Ontario. Cornulites bellistriatus Hall. Cornulites - Hall, Pal. New York, 2, 1852, p. 353, pi. 85, figs. 12-17. Cornulites bellistriatus Hall, Pal. New York, 7, Sup., 1888, p. 20, pi. 116A, figs. 12,13. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 161, fig. 56; Bull. New York State Mus., 45, 9, 1901, p. 161, fig. 56. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 238, fig. 1523. Clinton (Rochester): Western New York; Ontario. Cornulites clngulatus Hall. Cornulites cingulatus Hall, Pal. New York, 7, 1888, p. 20 (supplement to 5), pi. 114, fig. 29. Clarke, Mem. New York State Mus., 3, No. 3, 1900, p. 27, pi. 2, figs. 35-38. Weller, Geol. Surv. New Jersey Pal., 3, 1903, p. 272, pi. 32, fig. 3. Ohern, Maryland Geol. Surv., Low. Dev., 1913, p. 258, pi. 40, fig. 16. Helderbergian: New York (New Scotland); Pinto, Maryland (Keyser); New Jersey. Also Oriskany of New York. Cornulites clintoni Hall. Cornulites flexuosus Hall (not Hall, 1847), Pal. New York, 2, 1852, p. 98, pi. 28, fig. 12a-e; 5, pt. 2, 1879, p. 156, footnote; 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 184. Cornulites clintoni Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 330; Pal. New York, 7, Sup., 1888, p. 18, pi. 116, fig. 22; pi. 116A, fig. 9. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 10. Cornulites serpularius var. clintoni Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 274, pi. 5, fig. 8, pi. 7, fig. 8. Clinton: Lockport, etc., New York; Hamilton, etc., Ontario (Irondequoit and Rochester); Lewis County, Kentucky. Cornulites clintoni gracilis (Hall). Cornulites flexuosus var. gracilis Hall, Canadian Nat. GecL, 5, 1860, p. 155. Dawson, Acadian Geol., 2d ed., 1868, p. 606. Silurian: Arisaig, Nova Scotia. Cornulites conicus (Nicholson). Ortonia conica Nicholson, Geol. Mag., 9, 1872, pp. 447, 448, fig. 1; Rep. 42d Meet Brit. Assoc. Adv. Sci., Notes and Abstracts, 1873, p. 119. Miller, Cincini Quart. Jour. Sci., 1, 1874, p. 11, fig. 4. Hall, Pal. New York, 7, Sup., p. 17, pis. 115, fig. 27; 116A, figs. 15, 16. Maysville: Cincinnati, Ohio, and vicinity. Cornulites contractus Ringueberg. Cornulites contractus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, 148, pi. 3, fig. C. Clinton (Rochester): Lockport, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 279 Cornulites corrugatus (Nicholson). Conchicolites corrugatus Nicholson, Geol. Mag., 10, 1873, p. 55, pi. 4, fig. 2. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 7. Hall, Pal. New York, 7, Sup., 1888; p. 17, pis. 115, fig. 27; 116A, figs. 17, 18. Orabau and Shimer, N. A. Index Fossils, 2, 1910, p. 237, fig. 1522. Maysville: Cincinnati, Ohio, and vicinity. Cornulites distans Hall. Tentaculites distans Hall, Pal. New York, 2, 1852, p. 184, pi. 41A, figs. 9, a, b. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 144. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 48. Cornulites distans Hall, 23th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 185; Pal. New York, 5, pt. 2, 1879, p. 163 (gen. ref.); llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 330 (gen. ref.); Pal. New York, 7, Sup., 1888, p. 18, pi. 116, fig. 23. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 274, pi. 5, fig. 7; pi. 6, figs. 10, 11; Geol. Surv. Ohio Pal., 7, 1893, p. 532, pi. 30, fig. 7; pi. 31, figs. 10, 11. Miller, N. A. Geol. Pal., 1889, p. 518, fig. 938. Upper Medinan: Flamborough Head, etc., Ontario (Cataract); Dayton, Ohio (Brassfield); Arisaig, Nova Scotia. Cornulites flexuosus (Hall). Tentaculites? flexuosa Hall, Pal. New York, 1, 1847, p. 92, pi. 29, figs. 6a-d; p. 284, pi. 78, fig. 2a, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 225, pi. 17, fig. 6. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 76. Emmons, Man. Geol., 1860, p. 102, fig. 6. Meek and Worthen, Proc. Acad. I Nat. Sci. Philadelphia, 1865, p. 255; Geol. Surv. Illinois, 3, 1868, p. 343. Cornulites flexuosus Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 330; Pal. New York, 7, Sup., 1888, p. 18, pi. 115, figs. 41, 42. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1067, pi. 32, fig. 11. Conchicolites flexuosus Miller, N. A. Geol. Pal., 1889, p. 517, fig. 936. Trenton: Lowville, New York. ' Cincinnatian: Turin, Pulaski, etc., New York (Pulaski); Cincinnati, Ohio, and vicinity (Maysville). RNULITES FLEXUOSUS Hall (part). See Cornulites clintoni. CORNULITES FLEXUOSUS var. GRACILIS Hall. See Cornulites clintoni gracilis. Cornulites gregarius (Nicholson). Conchicolites gregarius Nicholson, Man. Pal., 1, 1889, p. 477, fig. 342; Amer. Jour. Sci., 3d ser., 3, 1872, p. 204. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 238. Ordovician: England; Cincinnati, Ohio(?). Cornulites immaturus Hall. Cornulites immaturus Hall, Pal. New York, 7, Sup., 1888, p. 18, pi. 115, fig. 40. Utica: Holland Patent, Oneida County, New York. Cornulites Incuryus (Shumard). Tentaculites incurvus Shumard, 1st and 2d Ann. Rep. Geol. Surv. Missouri, pt. 2, 1855, p. 195, pi. B, fig. 6a, b. Keyes, Missouri Geol. Surv., 5, 1894, p. 217, pi. 35, fig. 3. Cornulites incurvus Hall, Pal. New York, 7, Sup., 1888, p. 18, pis. 115, fig. 31; pi. 116, fig. 31. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 41, pi. 2, fig. 7. Upper Medinan (Girardeau): Near Cape Girardeau, Missouri. 280 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cornulites minor (Nicholson). Ortonia minor Nicholson, Geol. Mag., 10, 1873, p. 56, pi. 4, fig. 3. Miller, Cincin- nati Quart. Jour. Sci., 1, 1874, p. 10. Hall, Pal. New York, 7, Sup., 1888, p. 17, pi. 115, fig. 3; pi. 116A, figs. 19, 20. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 240, fig. 1525c. Conchicolites minor Miller, N. A. Geol. Pal., 1889, p. 517. Maysville: Cincinnati, Ohio, and vicinity. Cornulites nodosus Ringueberg. Cornulites nodosus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 149, Pi. 3, fig. 7. Clinton (Rochester) : Lockport, New York. Cornulites proprius Hall. Cornulites propius Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 31, figs. 1-13; mus. ed., 1879, p. 182, pi. 31, figs. 1-13; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 327, pi. 32, figs. 1-13; Pal. New York, 7, Sup., 1888, p. 19, pi. 116, figs. 1-21. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 238, fig. Niagaran: Waldron, etc., Indiana; Tennessee (Waldron); Nova Scotia. Cornulites richmondensis (Miller). Tentaculites Richmondensis Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 234, fig. 28. Hall, Pal. New York, 5, pt. 2, 1879, p. 163; 7, Sup., 1888, p. 18, pi. 115, figs. 28-30, 33-39. Miller, N. A. Geol. Pal., 1889, p. 393, fig. 650. Cornulites richmondensis Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. In( 1908, p. 1065, pi. 42, fig. 5. Richmond (Whitewater): Richmond, etc., Indiana. Observation. Compare C. sterlingensis Meek and Worthen. CORNULITES SERPULARIS var. CLINTONI Foerste. See Cornulites clintoni. Cornulites sterlingensis (Meek and Worthen). Tentaculites Sterlingensis Meek and Worthen, Proc. Acad. Nat. Sci. Philadelpl 1865, p. 255; Geol. Surv. Illinois, 3, 1868, p. 343, pi. 4, fig. 8. Hall, Pal. Ne' York, 5, pt. 2, 1879, p. 163; 7, Sup., 1888, p. 17, pi. 115, figs. 5-7, 32. Richmond (Maquoketa): Sterling, Illinois. Cornulites tenuistriatus (Meek and Worthen). Tentaculites tenuistriatus Meek and Worthen, Proc. Acad. Nat. Sci. Philade phia, 1865, p. 254; Geol. Surv. Illinois, 3, 1868, p. 341, pi. 4, figs. 7a, b. Cornulites tenuistriatus Cum ings, 32d Ann. Rep. Dep. Geol. Nat Res. Indiana, 1908, p. 1066. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 41, pi. 2, fig. 6. UDper Medinan (Girardeau) : Alexander County, Illinois. ?Richmond: Richmond, Indiana. CORYDOCEPHALUS Hawle and Corda. Genotype: C. flabellatus Hawle and Cords Corydocephalus Hawle and Corda, Abh. d. k. Bohmischen Gesell. d. Wiss., (ex tract), 1847, p. 139, t>l. 7, fig. 74. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 61-63, sec. A, pp. 70, 81, 82. Grabau and Shimer, N. A. Indc Fossils, 2, 1910, p. 309. Raymond, Zittel-Eaatman Textb. Pal., 1913, p. 721. Corydocephalus byrnesanus (Miller and Gurley). Lichas byrnesanus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3, p. 78, pi. 8, figs. 8, 9. Niagaran (Laurel): Near Madison, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 281 Corydocephalus depauperatus (Van Ingen). Arges phlyctainoides depauperatus Van Ingen, School of Mines Quart., 23, 1901, p. 57. Niagaran (St. Glair): St. Clair Spring, Independence County, Arkansas. uydocephalus phlyctainoides (Green). Calymene phlyctainoides Green, Amer. Jour. Sci., 32, 1837, p. 167. Arges phlyctainodes Hall, Pal. New York, 2, 1852, p. 314, pi. 70, figs. 2a-2c. Van Ingen, School of Mines Quart., 23, 1901, p. 57, pi., figs., 18, 18a. Lichas hanoverensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3, 1893, p. 78, pi. 8, figs. 6-7. Lichas phlyctainoides Foerste, Geol. Surv. Ohio Pal., 7, 1893, p. 529, pi. 37A, fig. 15; pi. 27, fig. 11. Corydocephalus phlyctainoides Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 234, pi. 22, figs. 1-4. Corydocephalus phlyctainodes Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 310, fig. 1621b-e. Niagaran: Springfield, Ohio; Indiana; New York; Illinois; Arkansas. Plesiotype: Cat. No. 4918, U. S.N.M. (Green). Corydocephalus ptyonurus (Hall and Clarke). Lichas (Dicranogmus) ptyonurus Hall and Clarke, Pal. New York, 7, 1888, p. 86, pi. 19B, figs. 19-21. Cayugan (Cobleskill) : Schoharie, New York. Corydocephalus tuberculatus (Weller). Arges tuberculatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 199, pi. 15, figs. 11-13. Trenton: Near Iliff's Pond, New Jersey. Corydocephalus wesenbergensis paulianus (Clarke). Lichas (Arges) wesenbergensis var. paulianus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 744, figs. 62-64. Lichas paulianus Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.). Trenton (Prosser) : St. Paul and Wykoff, Minnesota. CORYMBOCRINUS Angelin. Genotype: Eucalyptocrinus polydorus McCoy. Corymbocrinus Angelin, Icon. Crinoid., 1878, p. 18, pi. 8, figs. 1, 6-12; pi. 21, fig. 17. Zittel, Handb. Pal., 1, 1879, p. 373. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 308 (Rev. Pal., pt. 2, p. 134); 1885, p. 328. Weller, Jour. Geol., 6, 1898, p. 700; Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 99, fig. 45. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 147. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 162. Zittel, Grundzuge Pal., 1, 1910, p. 163. Corymbocrinus chicagoensis Weller. Corymbocrinus chicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 100, pi. 4, figs. 1-3. Niagaran (Racine): Chicago, Cicero, and Romeo, Illinois. Corymbocrinus niagarensis Weller. Corymbocrinus niagarensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 101, pi. 4, figs. 4. 5. Niagaran (Racine) : Chicago, Illinois. CORYNOGEAPTUS Hopkinson. See Corynoides Nicholson. 282 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CORYNOIDES Nicholson. Genotype: C. calicularia Nicholson. Corynoidea Nicholson, Geol. Mag., 4, 1867, p. 108; Hon. British Grapt., 1872, p. 132. Zittel, Handb. Pal., 1879, p. 289. Nicholson and Lydekker, Man. Pal., 1887, p. 215. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 228-234. Corynograptus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 633. Corynoides calicularis Nicholson. Graptolite germs Hall, Pal. New York, 3, 1859, p. 508, fig. 7; Can. Org. Hem., dec. 2, 1865, pi. B, fig. 19. Corynoides calicularis Nicholson, Geol. Mag., 4, 1867, p. 108; pi. 7, figs. 9-11. Hopkinson, Geol. Mag., 9, 1872, p. 502. Nicholson, Mon. British Grapt., 1872, p. 132, fig.; Ann. Mag. Nat. Hist., 11, 1873, p. 143. Lap worth, Cat. West. Scot. Foss., 1876, p. 7, pi. 4, fig. 91; Rep. and Proc. Belfast Nat. Field Club, 1, pt. 4, App., 1877, pi. 7, fig. 18. Linnarsson, Sveriges Geol. Unders., ser. C, No. 31, 1879, p. 18. Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887, p. 177. Nicholson and Lydekker, Man. Pal., 1889, p. 215, fig. 96. Gurley, Jour. Geol., 4, 1896, pp. 94, 301. Ruedemann, Bull. New York State Mus., 42, 1901, p. 515. Clarke, Geol. Mag., 4th ser., 9, 1902, p. 498. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 214, pi. 16, figs. 12, 13. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 234-237, figs. 122-132; pi. 13, figs. 1, 6-8. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 7, figs. 9, 10. Chazyan: (Normanskill): Glenmont, Albany, and other localities in slate belt of New York; Pennsylvania; Maryland; Virginia. Ordovician: Wales; Scotland; Scandinavia. Corynoides curtus Lapworth. Corynoides curtus Lapworth, Cat. West. Scot. Foss., 1876, p. 7, pi. 4, fig. 92; Rep. and Proc. Belfast Nat. Field Club, 1, pt. 4, App., 1877, pi. 7, fig. 19. Ruedemann, Bull. New York State Mus., 42, 1901, p. 514ff ; Mem. New York State Mus., 11, pt. 2, 1908, pp. 240, 241, figs. 140-144; pi. 13, figs. 4, 17-21. Trenton (Snake Hill): Albany, Amsterdam, etc., New York; Panton, Vermont. Ordovician (Hartfell): Ireland. Corynoides curtus comma Ruedemann. Corynoides curtus Ruedemann, Bull. New York State Mus., 42, 1901, p. 526. Corynoides curtus var. comma Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 242, pi. 13, figs. 5, 22-24, 145-148. Trenton (Snake Hill): Mechanicsville, New York. Corynoides gracilis Hopkinson. Corynoides gracilis Hopkinson, Geol. Mag., 9, 1872, p. 502, pi. 12, fig. 1. Lai worth, Cat. West. Scot. Foss., 1876, p. 7, pi. 4, fig. 93. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 237-239, figs. 133-135; pi. 13, figs. 2, 2, 12, 15, 16. Ordovician: Scotland (Hartfell); Lansingburg, Troy, and Baker Falls, New Yorl (Trenton-Snake Hill). Corynoides gracilis perungulatus Ruedemann. Corynoides gracilis mut. perungulatus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 239-240, figs. 136-139; pi. 13, figs. 3, 9, 10, 11, 13, 14. Chazyan (Normanskill): Glenmont, Speigletown, near Troy, and Mount Moreno, near Hudson, New York; Arkansas. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 283 CORYNOTBTPA Bassler. Genotype: Hippothoa delicatula James. Stomatopora (part) of authors. Corynotrypa Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 501; Bull. IT. S. Nat. Mus., 77, 1911, p. 61; Zittel-Eastman Textb. Pal., 1913, p. 319. Corynotrypa abrupta Bassler. Corynotrypa abrupta Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 517, figs. 16, 17; Bull. U. S. Nat. Mus., 77, 1911, pp. 65, 66, figs. 11, 12. Richmond (Maquoketa): Iron Ridge, Wisconsin. Lyckholm limestone: Kertel, Island of Dago, Baltic Sea. Holotype and paratype. Cat. Nos. 54173, 57109, U.S.N.M. Corynotrypa barberl Bassler. Corynotrypa barberi Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 509, fig. 8; Bull. U. S. Nat. Mus., 77, 1911, pp. 63, 64, fig. 9. Chazyan (Ottosee): Knoxville, etc., Tennessee; southwest Virginia. Lyckholm limestone: Hohenholm, Island of Dago, Baltic Sea. Holotype and paratype Cat. No. 57105, 57106, U.S.N.M. Corynotrypa canadensls (Whiteaves). Stomatopora canadensis Whiteaves, Pal. FOBS., 3, 1897, p. 161, pi. 18, figs. 4, 4a. Corynotrypa canadensis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 526, fig. 27. Black River or Richmond: Little Black Island, Lake Winnipeg, Canada. Corynotrypa curta Bassler. Corynotrypa curta Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 518, fig. 18. Richmond (Maquoketa): Savannah, Illinois. Cotypes.C&t. No. 54171, U.S.N.M. Corynotrypa delicatula (James). Hippothoa delicatula James, Paleontologist, No. 1, 1878, p. 6. Stomatopora proutana Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 39, pi. 1, figs. 4-4b. Ulrich, ibid., 12, 1890, p. 175, fig. 2c; Geol. Minnesota, 3, 1893, p. 117, pi. 1, figs. 8-12. Rhopalonaria pertemiis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv., Minne- sota, 1886, p. 59. Stomatopora delicatula Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 419. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 118, fig. 178b. Bassler, Proc. U. S. Nat. Mus., 30, 1908, p. 55, pi. 3, figs. 4-7. Stomatopora tenuissima Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 175, fig. 2; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 261, fig. 412A; Geol. Minne- sota, 3, pt. 1, 1893, p. 116, pi. 1, figs. 16, 17. Stomatopora delicatula-tenuissima Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 419. Corynotrypa delicatula Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 506, figs. 3a, 4-7; Bull. U. S. Nat. Mus., 77, 1911, pp. 61-63, fig. 8; Zittel-Eastman Textb. Pal., 1913, p. 319, figs. 439a. Stones River-Richmond: Various localities in the United States and Canada. Middle Ordovician: Esthonia, Russia. Plesiotypes.Vzt. Nos. 13615, 43260, 43263, 54156, 54165, U.S.N.M. Jorynotrypa dissimilts (Vine). Aulopora sp. Hall, Pal. New York, 2, 1852, pi. 50, figs. 27, 29. Stomatopcra dissimilis Vine, Quart. Jour. Geol. Soc. London, 37, 1881, pp. 615, 616, figs. 1-8; 38, 1882, p. 50. Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 15, 16, pi. 4, figs. 15-19. 284 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Corynotrypa dissimilis Continued. Corynotrypa dissimilis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 523, figs. 23, 24; Bull. U. S. Nat. Mus., 77, 1911, pp. 68, 69, fig. 14. Stomatopora recta Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 20, pi. 2, pp. 15, 15a. Stomatopora minor Hennig, ArchivfurZool., Kongl. Sven. Vet.-Akad. Stockholm, 3, No. 10, 1906, p. 24, pi. 3, fig. 6. Silurian: England, Gotland, and Esthonia; Island of Anticosti; New York and Ontario (Rochester); Indiana, Kentucky, and Tennessee (Osgood- Louisville). Pleriotypes.Csit. Nos. 35473, 35475, 57112, U.S.N.M. Corynotrypa elongata (Vine). Stomatopora dissimilis var. elongata Vine, Quart. Jour. Geol. Soc. London, 38, 1882, p. 50. Stomatopora elongata Vine, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 85, fig. 4, 2. Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 14, 15, pi. 4, figs. 10-14. Corynotrypa elongata Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 510, fig. 9. Stomatopora parva Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 20, pi. 2, fig. 16. Silurian: Shropshire, England (Wenlock); Sevenmile Creek, near Eaton, Ohio (Brassfield); Rochester and Lockport, New York (Rochester); Newsom, Ten- nessee (Waldron); Island of Anticosti. Plesiotypes.C&t. Nos. 35475, 57107, U.S.N.M. Corynotrypa inflata (Hall). Alecto inflata Hall, Pal. New York, 1, 1847, p. 77, pi. 26, figs. 7a, b. Hippothoa inflata Nicholson, Pal. Ohio, 2, 1875, p. 268, pi. 25, figs. 1-lb; Rep. 44th Meeting British Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 90. Vine, Rep. 51st Meeting British Assoc. Adv. Sci., 1882, p. 163. Stomatopora inflata Vine, Quart. Jour. Geol. Soc. London, 37, 1881, p. 615. Ulrich, Jour Cincinnati Soc. Nat. Hist., 12, 1890, p. 176, fig. 3c; Geol. Minne- sota, 3, 1893, p. 117, pi. 1, figs. 13-21; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 412B (p. 261). Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 202-204 (p. 597). Ruedemann, Bull. New York State Mus., 49, 1902, p. 12, pi. 1, figs. 2, 3. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 118, fig. 178a. Cumings, 32d Ann. Rep. Geol. Nat. Res. Indiana, 1908, p. 886, pi. 32, figs. 1, la. Stromatopora inflata Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1106, figs. Corynotrypa inflata Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 515, figs. 12-14; Bull. U. S. Nat. Mus., 77, 1911, pp. 64, 65, fig. 10; Zittel-Eastman Textb. Pal., 1913, p. 319, fig. 439b. Black River-Richmond: Trenton Falls, etc., New York; Canada; Minnesota; Kentucky; Tennessee; etc. Middle Ordovician (Wesenberg): Esthonia, Russia. Plesiotypes.C&t. Nos. 54146, 54162, 54169, U.S.N.M. Corynotrypa medialis Bassler. Corynotrypa medialis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 519, fig. 19. Richmond (Maquoketa): Three miles north of Spring Valley, Minnesota. HolotypeC&t. No. 57110, U.S.N.M. Corynotrypa tennesseensis Bassler. Corynotrypa tennesseensis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 525, fig.25. Stones River (Pierce) : Near Murfreesboro, Tennessee. Cotypes Cat. No. 54177, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 285 Corynotrypa turgida (Ulrich). Stomatopora turgida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 176, fig. 3; Geol. Minnesota, 3, 1893, p. 118, pi. 1, figs. 22, 23. Corynotrypa turgida Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 520, fig. 20. Richmond (Fernvale): Wilmington, Illinois. Holotype and plesiotype.C&t. Nos. 43258, 54155, U.S.N.M. COSCINIUM PROAVUS Eichwald. See Graptodictya proava. COSCINOPORA SULCATA Owen. See Receptaculites oweni. CRANIA Retzius. Genotype: Anomia craniolaris Linnaeus. Crania Retzius, Schrift. Ges. Naturf. Freunde, Berlin, 2, 1871, p. 72. Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 273. Davidson, British Foss. Brach., Pal. Soc., 1853, pp. 37, 122. Woodward, Man. Mollusca, pt. 2, 1854, p. 236, figs. 157, 159. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 66. Davidson, Mon. British Carb. Brach., Pal. Soc., 1861, p. 192. Dall, Amer. Jour. Conch., 7, 1871, p. 71; Bull. Mus. Comp. Zool., 3, 1871, p. 27. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, pp. 11, 12. Dall, Bull. U. S. Nat. Mus., 8, 1877, p. 21. Winchell, 8th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1880, p. 63. Miller, N. A. Geol. Pal., 1889, p. 341. Nettelroth, Kentucky Foss. Shells, Mem. Geol. Surv. Kentucky, 1889, p. 31. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 145, 169. Winchell and Schuchert, Geol. Minne- sota, 3, 1893, p. 372. Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 260. Koken, Die Leitfossilien, Leipzig, 1896, p. 232, figs. 191, 1-3. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 80. Huene, Neues Jahrb. f. Min., Geol. and Pal., 1, 1899, p. 142. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 185. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 311. inia acadiensis Hall. Crania acadiensis Hall, Canadian Nat. Geol., 5, 1860, p. 144, fig. 1. Dawson, Acadian Geol., Suppl. Chap., 1860, p. 68. fig. 47; 3d ed., 1878, p. 595, fig. 198. Silurian: East River, Nova Scotia. mia albersi Miller and Faber. Crania albersi Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 154, pi. 8, figs. 17-19. Miller, N. A. Geol. Pal., 2d App., 1897, p. 760, fig. 1406. Eden (Economy): Cincinnati, Ohio, and vicinity. LNIA ALTERNATA James. See Crania scabiosa. /rania anna Spencer. Crania anna Spencer, Bull. Univ. Missouri, 1, 1884, p. 57; Trans. St. Louis Acad. Sci., 4, 1886, p. 607, pi. 8, fig. 4. Niagaran dolomite: Hamilton, Ontario. LNIA ASPERULA James. See Crania scabiosa. JIA CORRUGATA Lesley. See Lichenalia concentrica. COSTATA James. See Crania scabiosa. L? DEFORMATA Miller. See Archinacella deformata. rania dentata Ringueberg. Crania dentata Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 16, pi. 2, fig. 6. Clinton (Rochester): Lockport, New York. 286 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Crania? dub a Foerste. Crania? dubia Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 565, pi. 37A, figs. 17a, b. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 189. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. Crania dyeri Miller. Crania dyeri Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 13, fig. 3; N. A. Geol. Pal., 1889, p. 341, fig. 553. Eden (Economy): Cincinnati, Ohio and vicinity. CRANIA EXCENTRICA Miller. See Orbicula excentrica. CRANIA FILOSA Hitchcock. See Schizocrania filosa. Crania gracilis Ringueberg. Crania gracilis Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 17, pi. 2, fig. 7. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 190. Crania pannosa Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 17, pi. 2, fig. 8. Clinton (Rochester): Lockport, New York. Crania granulosa N. H. Winchell. Crania granulosa N. H. Winchell, 8th Ann. Rep. Geol. Nat. Hist. Surv. Minne- sota, 1880, p. 63. Sardeson, Bull. Minnesota A cad. Nat. Sci., 3, 1892, p. 343. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 373, pi. 29, figs. 34, 35. Black River (Platteville): Minneapolis, Minnesota. Crania granulosa cumberlandensis Foerste. Crania granulosa-cumberlandensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 41, pi. 5, fig. 8. Black River (Lowville): Wells Creek Basin, near Cumberland, Tennessee; High Bridge, Kentucky. CRANIA HALLI Sardeson. See Petrocrania ulrichi. Crania laelia Hall. Crania Iselia Hall, Descriptions n. sp. Crinoidea and Other Fossils, 1866, p. 13; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 16. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 12. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 75, pi. 1, fig. 16. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, fig. 1. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, fig. 242. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 897, pi. 33, fig. 2. Maysville and Richmond: Cincinnati, Ohio, and many localities in Ohio, Indiana, Kentucky, Tennnessee, etc. CRANIA MINUTULA Miller. Sec Schizotreta minutula. CRANIA MULTIFUNCTATA Miller. See Crania scabiosa. CRANIA PANNOSA Ringueberg. See Crania gracilis. CRANIA PARALLELA Ulrich. See Crania scabiosa. CRANIA PERCARINATA Ulrich. See Crania scabiosa. CRANIA PRONA Raymond. See Petrocrania prona. CRANIA RETICULARIS Miller. See Trematis reticularis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 287 Cranla(?) reyersa Sardeson. Crania(?) reversa Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 77, pi. 3, figs. 6, 7. St. Peter sandstone: St. Paul, Minnesota. Crania scablosa Hall. Crania scabiosa Hall, Descriptions n. sp. Crinoidea and other FOBS., 1866, p. 13.; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 15. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 74, pi. 1, fig. 17. Miller, Cin- cinnati Quart. Jour. Sci., 2, 1875, p. 12. Hall and Clarke, Pal. New York, 8", pt. 1, 1892, p. 148, pi. 4H, figs. 23-28, 30, 31. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 191. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 206, fig. 240. Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res. Indiana, 1908, p. 898, pi. 33, fig. 3-3a. Crania multipunctata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 13, fig. 4. N. A. Geol. Pal., 1887, p. 341, fig. 554. Crania percarinata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 98, pi. 4, fig. 12. Crania parallela Ulrica, ibid., 1878, p. 98, pi. 4, fig. 13. Crania asperula James, Palaeontologist, 3, 1879, p. 22. Crania costata James, ibid., 1879, p. 22. Crania alternata James, ibid., 1879, p. 23. Philhedra scabiosa Huene, Neues Jahrb. f. Min., Geol. and Pal., 1, 1898, p. 147 (gen. ref.). Eden-Richmond: Cincinnati, etc., Ohio; Indiana; Kentucky; Tennessee; Wis- consin; etc. Crania setifera Hall. Crania setifera Hall, Trans. Albany Inst., 4, 1863, p. 209 (not Hall, 1866); 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1876, pi. 21, figs. 8-10; Mus. ed., 1879, p. 148, pi. 21, figs. 8-10; llth Rep. State Geol. Indiana, 1882, p. 283, pi. 21, figs. 8-10. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, fig. 18. Crane, Geol. Mag., dec. 4, 2, 1895, pi. 5, fig. 20. Niagaran (Waldron): Waldron, Indiana. Crania setigera Hall. Crania setigera Hall, Descriptions n. sp. Crinoidea and other Fossils, 1866, p. 12; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 15. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, figs. 14-16. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 372, pi. 29, figs. 32, 33. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, fig. 241e-f. Black River (Platteville and Decorah): Mineral Point and Beloit, Wisconsin; Decorah, Iowa; Minneapolis, Cannon Falls, etc., Minnesota. Crania siluriana Hall. Crania siluriana Hall, Trans. Albany Inst., 4, 1863, p. 208; 28th Rep. New York State Mus. Nat. Hist., 1879, p. 148, pi. 21, figs. 3-7; llth Rep. State Geol. Indiana, 1882, p. 282, pi. 21, figs. 3-7. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 13, pi. 1, figs. 1, 2. Niagaran (Waldron): Waldron, Indiana; Tennessee. Crania socialis Ulrich. Crania socialis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 98, pi. 4, fig. 14. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, fig. 29. Eden: Cincinnati, Ohio and vicinity. 288 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Crania spinigera Hall. Crania spinigera Hall, Descriptions n. sp. Foss. Waldron, Indiana, 1879, p. 13; llth Rep. State Geol. Indiana, 1882, p. 283, pi. 27, fig. 1; Trans. Albany Inst., 10, 1883, p. 69. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, fig. 17. Niagaran (Waldron): Waldron, Indiana. Crania trentonensls Hall. Crania trentonensis Hall, Desc. n. sp. Crinoidea and other Fossils, 1866, p. 12; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 219, pi. 7, figs. 11, 12. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, figs. 21, 22. Win- chell and Schuchert, Geol. Minnesota, 1893, p. 374, pi. 29, figs. 36, 37. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, .fig. 241c-d. Trenton: Middleville, New York; Cannon Falls, Minnesota; Janesville, Wis- consin; Dixon, Illinois. CRANIELLA (Ehlert. See Petrocrania Raymond. CRANIOPS Hall. See Pholidops Hall. Crateripora Ulrich. Crateripora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29. Observation. The forms for which this genus was proposed have been found to be the basal articulating sockets of species of Escharopora and Arthropora. CEATERIPORA ERECTA Ulrich. See Arthropora shafferi. CRATERIPORA LINEATA Ulrich. See Escharopora falciformis. CRATERIPORA LINEATA var. EXPANSA Ulrich. See Escharopora falciformis. CRATEROPHYLLUM Foerste. See Chonophyllum, subgenus Craterophyllum. CREMACRINUS Ulrich. Genotype: C. punotatus Ulrich. Cremacrinus Ulrich, Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 14, 1886, p. 107. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 201 (Rev. Pal., pt. 3, sec. 2, p. 277). Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 396, 405. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 148. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 213. Castocrinus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 392, pi. 11, fig. 1; Bather Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 9; Kongl. Sv.Vet. Akad. Handl., 25, No. 2, 1893, p. 21, 58, 61, fig. 13a, 63. Miller, N.A. Geol. Pal., 2d App., 1907, p. 740. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 148, fig. 61, 1. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 154. Zittel, Grundzuge Pal., 1, 1910, p. 152. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1890, p. 387. (Genotype: Calceocrinus furcillatus Billings.) Cremacrinus articulosus (Billings). Heterocrinus articulosus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 51, pi. 4, fig. 8. Calceocrinus (Heterocrinus) articulosus Walcott, 35th Rep. New York State Mus. Nat. Hist., 1883, p. 212. Calceocrinus articulosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phil delphia, 1886, p. 130 (Rev. Pal., pt. 3, sec. 2, p. 206). Ulrich, 14th Ann. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 113. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 289 Cremacrinus artlculosus Continued. Castocrinus articulosus Ilingueberg, Ann. New York Acad. Sci., 4, 1889, p. 395, pi. 10, fig. 4. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 25 (loc. occ.). Calceocrinus kentuckiensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 29, pi. 2, fig. 24, 25. Miller, N. A. Geol. Pal., 2d App., 1897, p. 740, fig. 1322. Castocrinus Kentuckiensis Miller and Gurley, Bull. Illinois State Mus. Xat. Hist., 5, 1894, p. 30. Trenton (Curdsvillc) : Ottawa and Kirkfield, Ontario; Mercer County, Kentucky. Cremacrinus barrandei (Walcott). Calceocrinus Barmndei Walcott, 35th Hep. New York State Mus. Nat. Hist., 1883, p. 212, pi. 17, figs. 1, 2 (author's ed., p. 6). Cremacrinus barrandei Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, pp. Ill, 113 (gen. ref.). Trenton: Trenton Falls, New York. Cremacrinus billingsianus (Ringueborg). Castocrinus billingsianus Ilingueberg, Ann. New York Acad. Sci., 4, 1889, p. 394, pi. 10, fig. 3 (separate, p. 7). Trenton (?Curdsville) : Ottawa, Ontario. CREMACRINUS CHRYSALIS Ulrich. See Eucheirocrinus chrysalis. Cremacrinus furcillatus (Billings). Calceocrinus furcillatus Billings, Ottawa Naturalist, 1, 1887, p. 51, pi., fig. Castocrinus furcillatus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 393, pi. 10, fig. 1. Trenton (?Curdsville): Ottawa, Ontario. Cremacrinus Insequalis (Billings). Heterocrinus imequalis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 51, pi. 4, fig. 7a. Calceocrinus insequalis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1886, pp. 130, 205 (Rev. Pal., pt. 3, sec. 2, pp. 206, 281). Cremacrinus inaequalis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, pp. Ill, 113 (gen. ref.). Castocrinus insequalis Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 395, pi. 10, fig. 5. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 25 (loc. occ.). Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. Cremacrinus punctatus Ulrich. Cremacrinus punctatus Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 107, fig. 1. Black River (Decorah): Minneapolis, Minnesota. CREMACRINUS RADICULUS Ulrich. See Eucheirocrinus radiculus. Cremacrinus rugosus (Billings). Calceocrinus rugosus Billings, Ottawa Naturalist, 1, 1887, p. 53, pi., figs. Miller, N. A. Geol. Pal., 1889, p. 230, fig. 259. Castocrinus rugosus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 393, pi. 10, fig. 2. Trenton (Curdsville): Belleville, Ontario. CREPICEPHALUS (LOQANELLUS) CENTRALIS Whitfield. See Ptychoparia oweni. 84243 Bull. 9215 19 290 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CREPICEPHALUS (LOGANELLUS) GRANULOSUS Hall and Whitfield. See Ptychoparia granulosa, CREPICEPHALUS (LOGANELLUS) HAGUEI Hall and Whitfield. See Ptychoparia haguei. CREPICEPHALUS (LOGANELLUS) MACULOSUS Hall and Whitfield. See Ptychoparia maculosa. CREPICEPHALUS (LOGANELLUS) UNISULCATUS Hall and Whitfield. See Ptychoparia unisulcata . CREPIPORA Ulrich. Genotype: C. simulans Ulrich. Crepipora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 157. Miller, N. A. Geol. Pal., 1889, p. 299. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 380, 469; Geol. Minnesota, 3, 1893, p. 322. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 15. Ulrich, Zittel's Textb, Pal. (Engl. ed.), 1896, p. 268. Simp- son, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566. Xickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 23. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122. Hennig, Archiv. fur Zool., 4, No. 21, 1908, p. 9. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 85, 86; Zittel-East- man Textb. Pal., 2d ed., 1913, p. 328. CREPIPORA EPIDERMATA Ulrich. See Favositella epidermata. Crepipora hemispherica Ulrich. Crepipora hemispherica Ulrich, Geol. Surv. Illinois, 8, 1890, p. 472, pi. 40, figs. 5-5b. Richmond: Wilmington, Illinois (Fernvale); Delafield, Wisconsin (Maquoketa). Cotype.Czt. No. 43234, U.S.N.M. CREPIPORA IMPOLITA Ulrich. See Anolotichia impolita. Crepipora Impressa Ulrich. Crepipora impressa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 471, pi. 40, figs. 2, 2a. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566, figs. 135, 136. Maysville (Fairmount) : Covington, Kentucky. Holotype.C&t. No. 43231, U.S.N.M. Crepipora perampla Ulrich. Crepipora perampla Ulrich, Geol. Minnesota, 3, 1893, p. 323, pi. 28, figs. 29-32; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 267, figs. 436A-C. Bassler, Zittel- Eastman Textb. Pal., 1913, p. 328, figs. 464a-c. Black River (Platteville) : Chatfield and near Spring Valley, Minnesota. Part of holotype.C&t. No. 43235, U.S.N.M. Crepipora simulans Ulrich. Crepipora simulans Ulrich, Geol. Surv. Illinois, 8, 1890, p. 470, pi. 39, figs. 4, 4a, pi. 40, figs. 3, 3a; p. 320, fig. 8b. (Ulrich in press) Miller, N. A. Geol. Pal., 1889, p. 299, fig, 468. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 436D (p. 267). Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566, figs. 133, 134. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 217. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122, fig. 178k. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 464d. Maysville (Fairmount): Cincinnati, Ohio; Indiana; Kentucky; Tennessee. Cotypea.C&t. No. 43230, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 291 Creplpora? sollda Ulrich. Crepipora solida Ulrich, Geol. Surv. Illinois, 8, 1890, p. 472, pi. 40, figs. 4-4b. Eden (Economy) : Covington, Kentucky Cotypes.C&t. No. 43232, U.S.N.M. Creplpora spatiosa Ulrich. Crepipora spatiosa Ulrich, Geol. Minnesota, 3, 1893, p. 323. Trenton (Cynthiana): Harrodsburg and Frankfort, Kentucky. Holotype.Czt. No. 43228, U.S.N.M. Creplpora subaequata Ulrich. Crepipora subeequata Ulrich, Geol. Minnesota, 3, 1893, p. 322, pi. 28, figs. 26-28. Black River (Decorah): St. Paul, Minnesota. Holotype.Czt. No. 43233, U.S.N.M. Creplpora renusta (Ulrich). Chsetetes venustus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 93, pi. 4, figs. 7, 7a. Crepipora venusta Ulrich, ibid., 5, 1882, p. 257. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 49, pi. 2, fig. 7. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 126. Monticulipora (Fistulipora) venusta James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 33. Trenton (Upper) and Eden (Economy): Covington, etc., Kentucky; Ohio; Indiana. Holotype.Czt. No. 43236, U.S.N.M. CRESEIS CORRUGATA Matthew. See Styliola cormgata. CRESEIS MINUTA Matthew. See Styliola minuta. CRINOCYSTIS Bather. See Crinocystites Hall. CRINOCYSTITES Hall. Genotype: C. chrysalis Hall. Crinocystites Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 317, extras, 1864; rev. ed., 1870, p. 361. Miller, N. A. Geol. Pal., 1889, p. 234. Crinocystis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900,' p. 77. Crinocystites chrysalis Hall. Crinoc>stites chrj sails Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 318, pi. 12a (1), figs. 10, 11; extras, 1864; rev. ed., 1870, p. 362, pi. 12a,figs. 10, 11. Crinocystis chrysalis Haeckel, Amphorideen u. Cystoideen, 1896, p. 69. Niagaran (Racine): Racine, Wisconsin. Crlnocystites(?) rectus (Hall). Crinocystites? rectus Hall, 20th Rep. New York State Nat. Hist., 1868, p. 318 (extras, 1864). Rhodocrim:s(?) rectus Hall, ibid., 1868, p. 379, pi. 10 (1), fig. 2; rev. ed., 1870, p. 368, pi. 11, fig. 10 (pi. 10, fig. 2). Niagaran (Racine): Racine Wisconsin. CRINOSOMA ANTIQUA Castelnau. See Arthrophycus alleghaniensis. CRISINELLA OEILENSIS Wiman. See Protocrisina exigua. CROMUS Barrande. See Encrinurus Emmrich. CROMUS ARCTICUS Haughton. See Encrinurus laevis. 292 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CROTALOCRINITES Austin and Austin. See Crotalocrinus Austin and Austin. CROTALOCRINUS Austin and Austin. Genotype: Cyathocrinites rugosus Miller. Crotalocrinites Austin and Austin, Ann. Mag. Nat. Hist., 11, 1843, p. 198. Crotalocrinus Morris, Cat. British Foss., 1st ed., 1848, p. 50. Muller, Ann. Mag. Nat. Hist,, 2d ser., 13, 1854, p. 254. McCoy, British Pal. Rocks and Foss., 1854, p. 54. Salter, in Murchison, Siluria, 2d ed., 1854, p. 219. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 312. Austin, Cat. Camb. Sil. Foss., 1873, p. ]23. Angelin, Icon. Crinoid., 1878, p. 26. Zittel, Handb. Pal., 1, 1879, p. 356. DeLoriol, Pal. Francaise, 2, 1882, p. 51. Carpenter, Ann. Mag. Nat. Hist., 5th ser., 18, 1886, p. 397. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 66, 69, (Rev. Pal., pt. 3, sec. 2, pp. 142, 145); 1888, pp. 264-390. Jaekel, Zeits. d. d. geol. Gesell., 49, 1897, p. 47. Weller, Jour. Geol., 6, 1898, p. 700. Bather, Geol. Mag., dec. 4, 5, 1898, p. 327, figs. 1, 3, 4; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 176, fig. 92, 3. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, pp. 19, 141, fig. 52. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 216. CROTALOCRINUS AMERICANUS Weller. See Crotalocrinus cora. Crotalocrinus cora (Hall). Cyathocrinus cora Hall, adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1865, p. 20, pi. (2), figs. 13, 14; doc. ed., 1867; 20th Rep., 1868, p. 324, pi. 11 (2), figs. 13, 14; rev. ed., 1870, p. 366, pi. 11, figs. 13, 14. Miller, Jour. Cincin- nati Soc. Nat. Hist., 4, 1881, p. 174. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 62, pi. 14, figs. 6-10. Crotalocrinus americanus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 143, pi. 14, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 561. Crotalocrinus cora Weller, Jour. Geol., 10, 1902, pp. 532, 534, pi. 3, figs. 1-5. Slocom, Field Columbian Mus., 2, Geol. Ser., No. 10, 1908, p. 292, pi. 86, figs. 3, 4. Niagaran (Racine): Racine, Wisconsin; Chicago, etc., Illinois. Crotalocrinus? yanhornei (Miller). Cyathocrinus vanhornei Miller, Jour Cincinnati Soc. Nat. Hist., 4, 1881, p. 261, pi. 6, fig. 3. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 64, pi. 14, fig. 5. Crotalocrinus? vanhornei Weller, Jour. Geology, 10, 1902, p. 533 (gen. ref.). Niagaran (Racine) : Bridgeport, Illinois. CRUMESLECRINITES Troost. See Periechocrimis Austin. CRUMEN^CRINITES OVALIS Troost. See Periechocrinus tennesseensis. CRUZIANA D'Orbigny. Genotype: C. rugosa D'Orbigny. Cruziana D'Orbigny, Voyage PAmerique Merid., 3, pt. 4, 1842, p. 30. Pictet, Traite" de Pal., 2d ed., 2, 1854, p. 559. Salter, Proc. Geol. Soc. London, 1860, p. 70; Mem. Geol. Surv. Great Britain, 3, 1866, p. 291; 2d ed., 1881, p. 482. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, pp. 33, 87. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, pp. 153-157. Lebesconte, Bull. Soc. Geol. France, 3d ser., 14, 1886, p. 810. Bornemann, Nova Acta K. Leop. Carol. Deutsch. Akad. der Natur., 51, No. 1, 1886, p. 11. Nathorst, Kongl. Sven. Vet.-Akad. Handl., 21, No..l4, 1886, p. 16. Walcott, Proc. U. S. Nat. Mus., 12, 1890, p. 35. Miller, N. A. Geol. Pal., 1889, p. 115. Observation. Possibly the same as Rusophycus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 293 CRUZIANA ASPERA James. See Rusophycus asper. CRUZIANA BILOBATA Hall. See Rusophycus bilobatus. CRUZIANA CARLEYI James. See Rusophycus carleyi. Cruziana cucurbita Salter. Cruziana cucurbita Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5, figs. 4-6. Ordovician?: Valleys of Unduavi and Aceromarka, Bolivia. Cruziana furclfera D'Orbigny. Cruziana furcifera D'Orbigny, Voyage PAmerique Merid., 3, pt. 4, 1847, p. 31, 8, Atlas, pi. 1, figs. 2, 3. Cruziana furcifera Ulrich, Neues Jahrb. f. Min., Geol. Pal., 8, Beilage-Band, 1893, p. 86. Ordovician: Cochabamba, Bolivia. CRUZIANA PUDICA James. See Rusophycus pudicuna. Cruziana rugosa D'Orbigny. Cruziana rugosa D'Orbigny, Voyage PAmerique Merid., 3, pt. 4, 1842, p. 30, 8, Atlas, pi. 1, fig. 1. Silurian: Cochabamba, Bolivia. CRUZIANA SUBANGULATA James. See Rusophycus subangulatus. Cruziana unduavi Salter. Cruziana unduavi Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5, figs. 7, 8. Ordovician?: Valleys of Aceromarka and Unduavi, Bolivia. CRYPTOCERAS UNDATUM Chapman. See Plectoceras halli. CRYPTODISCUS Hall. See Callicrinus D'Orbigny. CRTPTOGRAPTUS Lapworth. Genotype: Diplograptus tricornis Carruthers. Cryptograptus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 174. Ruede- mann, Mem. New York State Mus., 11, pt. 2, pp. 442, 443. Cryptograptus? antennarius (Hall). Climacograptus antennarius Hall, Geol. Surv. Canada, dec. 2, 1865, p. 112, pi. 13, figs. 11-13. Roemer and Freeh, Lethaea Pal., 1, 1897, p. 611. Ruede- mann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 731-732, pi. 16, figs. 21-26. Climacograpsus antennarius Nicholson, Ann. Mag. Nat. Hist., 4th ser., 6, 1870, p. 382, fig. 6; Mon. Brit. Grapt., 1872, p. 49, fig. 16. Diplograpsus antennarius Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 139. Cryptograptus? antennarius Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 174. Gurley, Jour. Geol., 4, 1896, p. 299 (gen. ref.). Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 519, fig. 31, p. 520. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 443. Diplograptus laxus Ruedemann, Ann. Rep. New York State Pal., 1902, p. 571; Mem. New York State Mus., 7, pt. 1, 1904, pp. 722, 723, pi. 16, figs. 1-10. Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill and Mount Moreno, New York (Deepkill, D. dentatus zone); Arkansas; Great Britain. CRYPTOGRAPTUS MARCIDUS Dodge. See Cryptograptus tricornis. 294 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cryptograptus tricornis (Carruthers). Diplograptus tricornis Carruthers, Trans. Royal Phys. Soc. Edinburgh, 1, 1858, p. 468, fig. 2; Ann. Mag. Nat. Hist., 3, 1859, p. 25, fig. 2; Geol. Mag., 5, 1868, p. 131, fig. 11. Hopkinson and Lapworth, Quart. Jour. Geol. Soc. London, 31, 1875, p. 658, fig. 6. Lapworth, Cat. West Scott. FOBS., 1876, fig. 30; Rep. and Proc. Belfast Nat. Field Club, 2d ser., 1, pt. 4, app., 1877, p. 132, pi. 6, fig. 10. Ami, Rep. Geol. Surv. Canada, 2d ser., 3, pt. 2, 1889, pp. 50K, 117K. Cryptograptus tricornis Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 171, pi. 5, figs. 27a-27e; Proc. and Trans. Royal Soc. Canada, 4, 1887, p. 177; Science, 9, 1887, p. 320; Canadian Rec. Sci., 3, 1888, p. 141; Rep. Geol. Surv. Canada, 2d ser., 3, pt. 1, 1889, p. 95B. Gurley, Jour. Geol., 4, 1896, p. 298. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 527. Hall, Proc. Royal Soc. Victoria, 18, pt. 1, 1905, p. 21. Ami, Geol. Surv. Canada, Sum. Rep. for 1904, 1905, p. 12. Hall, Rec. Geol. Surv. Victoria, 1, pt. 4, 1906, p. 275. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 443 448, pi. 28, figs. 1-4; figs. 410-417. Cryptograptus (Idiograptus) tricornis, Perner, Etudes sur les Grapt. Boherae, pt. 2, 1895, p. 26, pi. 7, figs. 7-10. Diplograptus etheridgii Hopkinson, Geol. Mag., 9, 1872, p. 504, fig. 5. Graptolithus marcidus Hall, Pal. New York, 3, 1859, p. 515, figs. 1-3; 13th Ann. Rep. New York State Cab. Nat. Hist., 1860, pp. 58, 59, figs. 1-3. Diplograptus marcidus Walcott, Trans. Albany Inst., 10, 1883 (adv. sheet 1879, p. 34). Whitfield, Amer. Jour. Sci., 3d ser., 26, 1883, p. 380. Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 339. Cryptograptus marcidus Dodge, Amer. Jour. Sci., 3d ser., 40, 1890, p. 153. Middle Ordovician: South Scotland (Glenkiln and Hartfell); New York slate belt (Normanskill) ; Canada; Tennessee; Arkansas; Australia; Bohemia; etc. Cryptograptus tricornis insectiformis Ruedemann. Cryptograptus tricornis mut. insectiformis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 448, 449, pi. 28, figs. 5, 419-422. Trenton (Snake Hill): Van Schaick Island, Cohoes, New York CRYPTOLITHUS Green. Genotype: C. tesselatus Green. Cryptolithus Green, Mon. Tril. N. Amer., 1832, p. 72. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 540-542. Emmrich, ibid., 1845, p. 44. Hall, Pal. New York, 1, 1847, p. 235, footnote. Nuttainia Eaton, Geol. Textb., 2d ed., 1832, p. 33. Oreen, Mon. Tril. N. Amer., 1832, p. 88. Hall, Pal. New York, 1, 1847, p. 235, footnote. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, p. 62. Trinucleus Murchison, Sil. Syst., 1839, p. 659. Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 115. Salter, Quart. Jour. Geol. Soc. London, 3, 1847, p. 251. Hawle and Corda, Abh. d. k. bohm. Gesell. Wiss., 5 (extract), 1847, p. 38, pi. 3, fig. 17. Salter, Mem. Geol. Surv. United Kingdom, dec. 7, 1853, pi. 7. McCoy, Brit. Pal. Rocks and Foss., 1854, p. 144. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 508. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 212. Chapman, Canadian Jour., n. s., 1, 1856, p. 273; 8, 1863, p. 28; Expos. Min. Geol. Canada, 1864, p. 136. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 126. Zittel, Handb. Pal., 2, 1885, p. 593 Miller, N. A. Geol. Pal., 1889, p. 568. Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143. Vogdes, Cal. Acad. Sci., Occ. Pap., 4, 1893, p. 359. Beecher, Amer. Jour. ScL., 3d ser., 49, 1895, p. 307; Amer. Geol., 16, 1895, pp. 167, 176. Koken, Die Leitfossilien, Leipzig, 1896, p. 15, fig. 9, 1. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 105, 184, 186, pi. 3, fig. 12. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 258. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 295 Cryptolithus bellulus (Ulrich). Trinucleus bellulus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 99, pi. 4, fig. 15. Eden: Covington, Kentucky, and vicinity (Economy); New York (Indian Ladder). Holotype.C&t. No. 41876, U.S.N.M. Cryptolithus bigsbii Green. Not recognized. Cryptolithus Bigsbii Green, Mon. Tril. N. Amer. 1832, p. 76. Ordovician: Montmorency, near Quebec, Ontario. Cryptolithus boliviensis (Lake). Trinucleus boliviensis Lake, Quart. Jour. Geol. Soc. London, 62, 1906, p. 427, pi. 40, figs. 4, 5. Ordovician: Near Apolo, Bolivia. Cryptolithus kruegeri (Hoek). Trinucleus kruegeri Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 236, pi. 10, figs. 7, 8. Ordovician: Cochabamba, Bolivia. Cryptolithus tessellatus Green. Cryptolithus tessellatus Green, Mon. Tril. North Amer., 1832, p. 73, cast 38, pi. 1, fig. 4; Monthly Amer. Jour. Sci., 1, 1832, pi. 1, fig. 4. Conrad, Amer. Jour. Sci., 38, 1840, p. 91, footnote. Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 48. Locke, Proc. Acad. Nat. Sci. Philadelphia, 1, 1842, pp. 196, 236, fig. Rouault, Bull. Soc. Geol. France, 2d ser., 6, 1849, p. 83. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 78 (gives history of genus and species); 17, 1914, p. 317. Trinucleus tessellatus Einmons, Nat. Hist. New York, Geol., 2, 1842, pp. 115, 390, 391, fig. 7. Owen, Amer. Jour. Sci., 47, 1844, pp. 363, 364, fig. 7. Nuttainia concentrica Eaton, Geol. Textb., 2d ed., 1832, p. 34, pi. 1, fig. 2. Green, Mon. Tril. North Amer., 1832, p. 76. Trinucleus caractaci Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 403, fig. 1. Owen, Amer. Jour. Sci., 47, 1844, p. 377, 378. De Verneuil, ibid., 2d ser., 7, 1849, p. 223. Emmons, Man. Geol., 1860, p. 103, fig. 93. Trinucleus concentricus Hall, Pal. New York, 1, 1847, p. 249, pi. 65, figs. 4a, c; p. 255, pi. 67, figs. la-h. Salter, Mem. Geol. Surv. United Kingdom, dec. 7, 1853, p. 51, pi. 7. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 212, pi. 15, fig. 4a, b; pi. 16, fig. 7; pi. 17, fig. 1. Chapman, Canadian Jour., n. s., 1, 1856, p. 273; 3, 1858, p. 514, fig. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 820, fig. 611. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 47, pi. 3, fig. 5; pi. 4, fig. 12. Hitchcock, Geol. Vermont, 1, 1861, p. 300, fig. 215. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 190, fig. 191a, b. Chapman, Canadian Jour., n. s., 8, 1863, p. 2, fig. 139; p. 200, fig. 195; Expos. Min. Geol. Canada, 1864, p. 136, fig. 139; p. 172, fig. 195. Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 320, pi. 19, fig. 4; Cat. Camb. Sil. Foss., 1873, p. 49. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 126. Walcott, Bull. Mus. Comp. Zool., 8, 1881, p. 199. Salter, Mem. Geol. Surv. Great Britain, 3, 2d ed., 1881, p. 517, pi. 19, fig. 4. Miller, N. A. Geol. Pal., 1889, p. 569, fig. 1063. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1223, fig. Beecher, Amer. Jour. Sci., 3d ser., 49, 1895, p. 309, pi. 3, figs. 1-6. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 192, pi. 14, figs. 3, 4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1064, pi. 44, fig. 11. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 7, fig. 3. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 259, fig. 1547. 296 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cryptolithus tessellatus Continued. Trenton-Maysville: Glens Falls, near Waterford, etc., New York; Canada; Penn- sylvania; New Jersey; Ohio; Kentucky; Oklahoma; Virginia; etc. Plastotype.Ca,t. No. 4921, U.S.N.M. CRYPTONYMUS Eichwald. See Asaphus Brongniart and Encrinurus Emmrich. CRYPTOPHRAGMUS Raymond. Genotype: C. antiquatus Raymond. Cryptophragmus Raymond, Bull. Victoria Mem. Mus., 5, 1914, p. 8. Cryptophragmus antiquatus Raymond. Cryptophragmus antiquatus Raymond, Bull. Victoria Mem. Mus., 5, 1914, p. 8, pis. 1-4. Black River (Lowville): Garden, etc., Ontario; Quebec; New York. CRYPTOPORA Nicholson. See Semicoscinium Prout. CRYPTOZOON Hall. Genotype: C. proliferum Hall. Cryptozoon Hall, 36th Rep. New York State Mus. Nat. Hist., 1884, expl. of pi. 6. Miller, N. A. Geol. Pal., 1889, p. 157. Dawson, Canadian Rec. Sci., 7, 1896, p. 204. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 46. Seely, Rep. State Geol. Vermont, 5, 1906, p. 160. Walcott, Smiths. Misc. Coll., 57, 1912, p. 257. Wieland, Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 239. Cryptozoon bassleri Wieland. Cryptozoon bassleri Wieland, Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 239, figs. 1, 2, pis. 14-18. Upper Cambrian or Ozarkian: Near Pennsylvania State College, Center County, Pennsylvania. Cryptozoon boreale Dawson. Cryptozoon boreale Dawson, Canadian Rec. Sci., 7, 1896, p. 207, fig. 1. Trenton: Lake St. John, Quebec. Cryptozoon giganteum Chaney. Cryptozoon giganteum Chaney, Bull. Minnesota Acad. Nat. Sci., 3, 1891, p. 283. Canadian (Shakopee): Northfield, Minnesota. Cryptozoon lachutense Dawson. Cryptozoon Lachutense Dawson, Canadian Rec. Sci., 7, 1896, p. 206. Seely, Rep. State Geol. Vermont, 5, 1906, p. 168. Canadian (Beekmantown): Lachute, Quebec. Cryptozoon minnesotense Winchell. Cryptozoon Minnesotense Winchell, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 313, pi. 1, figs. 1, 2; pi. 2, fig. 3. Chaney, Bull. Minnesota Acad. Nat. Sci., 3, 1891, p. 280. Dawson, Canadian Rec. Sci., 7, 1896, p. 206. Canadian (Shakopee): Cannon Falls, Northfield, and Mankato, Minnesota. Cryptozoon minnesotense libertatls Winchell. Cryptozoon Minnesotense var. libertatis Winchell, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 315, pi. 2, fig. 4. Canadian (Shakopee): Northfield, Minnesota. Cryptozoon perkinsi Seely. Cryptozoon? perkinsi Seely, Rep. State Geol. Vermont, 4, 1904, p. 150. Chazyan: Isle la Motte, Vermont. BIBLIOGRAPHIC LIST OF GENERA AXD SPECIES. 297 Cryptozoon proliferum Hall. Cryptozoon proliferum Hall, 3Gth Rep. New York State Mus. Nat. Hist., 1884, pi. 6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 163, fig. Dawson, Canadian Rec. Sci., 7, 1896, p. 204, fig. 2. Grabau and Sliimer, N. A. Index Fossils, 1, 1906, p. 46. Seely, Rep. State Geol. Vermont, 5, 1906, p. 161. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, p. 155, pi. 18, fig. 2. Wieland, Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 244, fig. 2. Walcott, Smiths. Misc. Coll., 57, 1912, p. 258, pi. 37, figs. 1-3. Upper Cambrian or Ozarkian: Saratoga and Herkimer Counties, New York (Hoyt); Pennsylvania; Maryland; Virginia (Conococheague) . Plesiotype.Ca,t. Nos. 56629, 58541, 58543, U.S.N.M. Cryptozoon saxiroseum Seely. Cryptozoon saxiroseum Seely, Rep. State Geol. Vermont, 5, 1906, p. 162, pis. 36, 37, figs. 3-6. Perkins, Rep. State Geol. Vermont, 8, 1912, pi. 16. Canadian (Beekmantown): Beekmantown, New York. Cryptozoon steell Seely. Cryptozoon steeli Seely, Rep. State Geol. Vermont, 5, 1906, p. 161, pis. 34, 36, 43, fig. 1. Canadian (Beekmantown) : Clinton County, New York; Pennsylvania; Maryland. Cryptozoon wingi Seely. Cryptozoon wingi Seely, Rep. State Geol. Vermont, 5, 1906, p. 163, pi. 38. Canadian (Beekmantown): Mount Independence, Orwell County, Vermont. CRYSTALLOCYSTIS AURANTIUM Haeckel. See Echinosphserites aurantium. CTENOBOLBINA Ulrich. Genotype: Beyrichia ciliata Emmons. Ctenobolbina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108. Miller, N. A. Geol. Pal., 1st App., 1892, p. 706. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 673. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 309. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p. 180. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 309. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1040. Bonnema, Mitt. Min. Geol. Inst. Groningen, 2, 1909, p. 43. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353. Ctenobolbina alata Ulrich. Ctenobolbina alata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 110, pi. 7, figs. 4a-c. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig. 6, pi. 40, figs. 6-8. Eden (McMicken): Cincinnati, Ohio, and vicinity. Cotypes. Cat. No. 41489, U.S.N.M. Ctenobolbina bispinosa Ulrich. Ctenobolbina bispinosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 110, pi. 7, fig. 6. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40^ fig. 9. Eden (McMicken): Cincinnati, Ohio, and vicinity. HolotypeCzt. No. 41490, U.S.N.M Ctenobolbina ciliata (Emmons). Beyrichia ciliata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 219, fig. 74c. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 351. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 89, fig. Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 19, pi. 3, figs. 12-16; pi. 4, figs. 16-18. 298 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ctenobolbina clliata Continued. Ctenobolbina ciliata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108, pi. 7, figs, la, b Ruedemann, Bull. New York State Mus., 42, Pal., 8, 1901, p. 575, pi. 2, figs. 8, 9. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig. 7, pi. 40, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353, fig. 1660, t, t'. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425e. Beyrichia tumifrons Hall, Desc. n. sp. Fossils, Cincinnati, Ohio, 1871, p. 7, pi. 4, fig. 11; 24th Rep. New York State Mus. Nat. Hist., 1872, p. 231, pi. 8, fig. 11. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 119. Hall and Whit- field, Geol. Surv. Ohio, Pal., 2, 1875, p. 102, pi. 4, fig. 8. Eden: Cincinnati, Ohio, and vicinity. Trenton (Snake Hill): Green Island, Albany County, New York. Plesiotypes.Ca.t. No. 41492, U.S.N.M. Ctenobolbina ciliata cornuta Ruedemann. Ctenobolbina ciliata cornuta Ruedemann, Bull. New York State Mus., 42, Pal., 1901, p. 575, pi. 2, figs. 5-7. Trenton (Snake Hill): Mechanicsville, Saratoga County, and Green Island, Albany County, New York. CTENOBOLBINA CILIATA var. CURTA Ulrich. See Ctenobolbina curta. CTENOBOLBINA CILIATA var. EMACIATA Ulrich. See Ctenobolbina emaciata. CTENOBOLBINA CILIATA var. HAMMELLI Cumings. See Ctenobolbina hammelli. Ctenobolbina crassa (Ulrich). Jonesella crassa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 123, pi. 7, figs, lla-c. Ctenobolbina crassa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 675, pi. 44, figs. 12-16. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40, figs. 15, 16. Black River (Decorah): Minneapolis, Cannon Falls, etc., Minnesota. Cotypes.Cat. No. 41497, U.S.N.M. Ctenobolbina curta (Ulrich). Ctenobolbina ciliata var. curta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 109, pi. 7, fig. 2. Ctenobolbina curta Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 310. Eden (McMicken): Cincinnati, Ohio, and vicinity. Ctenobolbina denticula Ulrich and Bassler. Ctenobolbina? denticula Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 524, pi. 96, figs. 6-9. Helderbergian (Keyser): Cumberland, Maryland. Holotype.Czt. No. 43307, U.S.N.M. Ctenobolbina? dubia Ulrich and Bassler. Ctenobolbina? dubia Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 525, pi. 96, figs. 10-12. Helderbergian (Keyser): Cumberland, Maryland. Holotype.Gsit. No. 53277, U.S.N.M. Ctenobolbina duryi (Miller). Beyrichia duryi Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 232, figs. 24, 25. Miller, N. A. Geol. Pal., 1889, p. 534, figs. 976, 977. Ctenobolbina duryi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108. Maysville (McMillan): Cincinnati, Ohio, and vicinity. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 299 Ctenobolbina emaciata (Ulrich). Ctenobolbina ciliata var. emaciata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 109, pi. 7, figs. 3a-c. Ctenobolbina emaciata Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 310, pi. 40, figs. 3-5. Richmond (Maquoketa): Savannah, Illinois. Holotype.Csit. No. 41325, U.S.N.M Ctenobolbina fulcrata Ulrich. Ctenobolbina fulcrata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 674, pi. 44, figs. 8-11. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 297, fig. 40, pi. 40, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353, fig. 1660, r, r 7 , s. Black River (Decorah): St. Paul, Minnesota. Cotypes,C2it. No. 41322, U.S.N.M. Ctenobolbina hammelli (Miller and Faber). Beyrichia hammelli Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 156, pi. 8, fig. 26. Miller, N. A. Geol. Pal., 2d App., 1897, p. 787, fig. 1458. Ctenobolbina hammelli Ulrich and Bassler, Proc. U. S. Nat. Mus. 35, 1908, p. 310. Ctenobolbina ciliata var. hammelli Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1045, pi. 53, fig. 6. Richmond (Arnheim-Waynesville): Versailles, etc., Indiana; Lebanon, etc., Ohio. Ctenobolbina obliqua Ulrich. Ctenobolbina obliqua Ulrich, Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p. 180, pi. 8, fig. 4. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40, fig. 10. Trenton (Prosser): Kenyon, Minnesota. Holotype.Czt. No. 41328, U.S.N.M. Ctenobolbina punctata Ulrich. Ctenobolbina punctata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 186, pi. 12, figs. 5a-c. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40, figs. 19, 20. Clinton (Rochester): Lockport, etc., New York; Grimsby, Ontario. HolotypeC&t. No. 41578, U.S.N.M. Ctenobolbina subcrassa Ulrich. Ctenobolbina subcrassa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p. 180, pi. 8, figs. 1-3. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 293, fig. 27; p. 297, fig. 42, pi. 40, figs. 17, 18. Stones River (Ridley) : High Bridge, Kentucky. Cotype Cat. No. 41316, U.S.N.M. Ctenobolbina subrotunda Ruedemann. Ctenobolbina subrotunda Ruedemann, Bull. New York State Mus., 42, Pal., 1901, p. 576, pi. 2, figs. 1-4. Trenton (Snake Hill): Port Schuyler, New York. CTENOBOLBINA TUMIDA Ulrich. See Beyrichia tumida. CTENOCRINUS L.EVIS Roemer. See Melocrinus roemeri. CTENOCRINUS ORNATUS Hall. See Macrostylocrimis ornatus. CTENOCRINUS STRIATUS Hall. See Macrostylocrinus striatus. 300 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CTENODONTA Salter. Genotype: Tellinomya nasuta Hall. Nucula Hall (not Lamarck), Geol. Rep. 4th Dist. New York, 1842, p. 76- Amer. Jour. Sci., 48, 1843, p. 292; Pal. New York, 1, 1847, pp. 150, 316. Lyrodesma Hall (part), Pal. New York, 1, 1847, p. 302. Ctenodonta Salter, Rep. British Assoc. Adv. Sci., 1851, p. 63; Rep. 21st Meeting, British Assoc. Adv. Sci., Notes and Abstracts, 1852, p. 64; Geol. Surv. Canada, dec. 1, 1859, p. 34. Winchell, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 128-129. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 308. Zittel, Handb. d. Pal., 2, 1881, p. 51. Lesley, Proc. Geol. Assoc. London, 10, 1888, p. 395. Barrois, Ann. Soc. Geol. Nord, 19, Lille, 1891, p. 184. TJlrich, Geol Surv. Ohio, 7, 1893, p. 679; Geol. Minnesota, 3, pt. 2, 1894, p. 578. Whidborne, Mon. Dev. Fauna South England, 3, Pal. Soc., 1896, p. 98. Koken, Die Leitfossilien, Leipzig, 1896, p. 194. Hind, Mon. British Garb. Lamellibranchiata, 1, Pal. Soc., 1897, pp. 177, 209. Ball, Zittel-Eastman Textb. Pal., 1, 1900, p. 363. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 979. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 393. Ball, Zittel-Eastmann Textb. Pal., 2d ed., 1913, p. 440. Tellinomya Hall, Pal. New York, 1, 1847, p. 151. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 534. Hall, Canadian Nat. Geol., 1, 1856, p. 391; 10th Rep. New York State Cab. Nat. Hist., 1857, pp. 181, 182, (extr.,pp. 141, 142); Amer. Jour. Sci. and Arts, 2d ser., 25, 1858, p. 108; Pal. New York, 3, 1859, p. 14, footnote; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 76. Hitchcock, Geol. Vermont, 1, 1861, p. 295. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 228, 229. Salter, Mem. Geol. Surv. Great Britain, 2d ed., 1881, p. 550. Koninck, Ann. d. Mus., Royal d'Hist. Nat. de Belgique, 11, 1885, p. 138. Miller, N. A. Geol. Pal., 1889, p. 514. Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, pp. 148-150. Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 73. Hind, Mon. British Carb. Lamellibranchiata, 1, Pal. Soc., 1897, p. 177 (Genotype: T. nasuta Hall). Not Tellinomya, the correct form of Tellimya Brown, 1827, as given by Agassiz in his "Nomenclator Zoologicus" in 1846. Palaeoconcha Miller, N. A. Geol. Pal., 1889, p. 498 (Genotype: P. faberi Miller). Ctenodonta abrupta Billings. Ctenodonta abrupta Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 40, figs. 48a-c (adv. sheets, 1862); Geol. Canada, Geol. Surv. Canada, 1863, p. 143, figs. 79a-c; p. 175, figs. 161a-b. Tellinomya abrupta Miller, N. A. Geol. Pal., 1889. p. 514 (gen. ref.). Black River (Leray): Pauquettes Rapids, Ottawa River, Canada. Ctenodonta? absimilis (Sardeson). Ttfllinomya absimilis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 74, pi. 3, figs. 1, 2. St. Peter: Highland Park, Minnesota. Ctenodonta albertina Ulrich. Ctenodonta albertina Ulrich, Geol. Minnesota. 3, 1894, p. 598, pi. 42, figs. 76-82. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502m. Richmond (Waynesville) : Clarksville, etc., Ohio, Cotypes. Cat. No. 46122, U.S.N.M Ctenodonta alta (Hall), Tellinomya alta Hull. Rep. Geol. Surv. Wisconsin, 1861, p. 27.- -Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 309, pi. 2, figs. 6a, b. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 50, pi. 6, figs. 5-8. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 301 Ctenodonta alta Continued. Ctenodonta alta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 602, pi. 42, figs. 93, 94. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502k-l. Trenton: Mount Carrol, Illinois; Dodgeville, Wisconsin (Galena); Fountain, Min- nesota (Prosser). Plesiotype.Ca,t. No, 46123, U.S.N.M- Ctenodonta angela Billings. Ctenodonta Angela Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221, fig. 203. Tellinomya Angela Miller, N. A. Geol. Pal., 1889, p. 514 (gen. ref.). Chazyan (Quebec M): Table Head, Newfoundland. Ctenodonta? angustata (Hall). Tellinomya angustata Hall, Canadian Nat. Geol., 5, I860, p. 152. Silurian: Arisaig, Nova Scotia. Ctenodonta astartseformis Salter. Ctenodonta astartseformis Salter, Geol. Surv. Canada, dec. 1, 1859, p. 39, pi. 8, figs. 7, 7a Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, figs. 164 a, b. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 184 (loc. ccc.). Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394. Ctenodonta cf. astartseformis Ruedemann, Bull. New York State Mus., 49, 1901, p. 28. Tellinomya astartseformis Miller, N. A. Geol. Pal., 1889, p. 515 (gen. ref.). Black River: Allumette Island, Ottawa River, Canada (Leray); Lake Winnipeg, Manitoba. Ctenodonta? attenuata (Hall). Tellinomya attenuata Hall, Canadian Nat. Geol., 5, 1860, p. 151. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1164. Silurian: Arisaig, Nova Scotia. Ctenodonta auburnensis Branson. Ctenodonta auburnensis Branson, Trans. Acad. Sci. St. Louis, 18, No. 4, 1909, p. 40, pi. 7, figs. 2-4. Black River (Auburn-Decorah): Lincoln County, Missouri. Gtenodonta bafflnensls Ulrich. Ctenodonta baffinensis Ulrich in Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 161, pi. 13, figs. 7-10. Mohawkian: Head of Frobisher Bay, Baffin Land. Ctenodonta bidorsata Raymond. Ctenodonta? bidorsata Raymond, Ann. Carnegie Mus., 3, 1906, p. 577. Chazyan (Crown Point) : Valcour Island, New York. Ctenodonta calvinl Ulrich. Ctenodonta calvini Ulrich, Geol. Minnesota, 3, 1894, p. 596, pi. 42, figs. 61-64. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502n. Tellinomya calvini Miller, N. A. Geol. Pal., 1897, p. 785 (gen. ref.). Richmond (Maquoketa): Graf, etc., Iowa; Scales Mound, Illinois. Cotypes. Cat. No. 46124, U.S.N.M. Ctenodonta candens (Sardeson). Tellinomya candens, Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 339, pi. 6, fig. 24; p. 343. Black River (Decorah): Minneapolis, Minnesota. 302 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ctenodonta carinata Ulrich. Ctenodonta carinata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 589, pi. 42, figs. 41-43. Tellinomya carinata Miller, N. A. Geol. Pal., 2d App., 1897, p. 785 (gen. ref.). Trenton (Prosser): East of Fountain, Minnesota. Cotypes Cat. No. 46124, U.S.N.M. Ctenodonta carpenderl Schuchert. Ctenodonta carpenderi Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 160, pi. 13, figs. 1-3. Mohawkian: Head of Frobisher Bay, Baffin Land. Cotypes.Czt. No. 28164, U.S.N.M. Ctenodonta cingulata (Ulrich). Tellinomya cingulata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 23, pi. 7, figs. 19, 19a. Ctenodonta cingulata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 680, pi. 48, figs. 10-12. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 997, pi. 44, figs. 5, 5a. Richmond: Marble Hill, near Madison, Indiana; Dayton, Ohio; Boyle and Old- ham Counties, Kentucky. Eolotype and plesiotypes.Cat. Nos. 46126, 46127, U.S.N.M Ctenodonta clarkei Bassler (new name). Tellinomya pulchella Clarke (not Hall, 1856), Archives Mus. Nac. Rio de Janeiro, 10, author's Engl. ed., 1900, p. 17, pi. 2, figs. 13-15. Silurian: Rio Trombetas, Brazil. Ctenodonta elintonensis (Foerste). Tellinomya (Nucula?) Clintonensis Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 563, pi. 37, fig. 15. Clinton: Near Mifflintown, Juniata County, Pennsylvania. Ctenodonta compressa (Ulrich). Tellinomya compressa Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1892, p. 216, fig. 2. Ctenodonta compressa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 600, pi. 37, fig. 29; pi. 42, figs. 88-90. Black River (Decorah) : Goodhue County, Minnesota. Holotype and plesiotypes. Cat. No. 46128, U.S.N.M. Ctenodonta contracta Salter. Ctenodonta contracta Salter, Geol. Surv. Canada, dec. 1, 1859, p. 37, pi. 8, figs. 4, 5. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, fig. 160a, b. Tellinomya contracta Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 76, pi. 11, 1884, figs. 15, 15a. Tellinomya cuneata Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 183 (ext., p. 143), figs. 6, 7 (not described; probably in error for contracta); Rep. Geol. Surv. Wisconsin, 1862, p. 38, figs. 1, 2. Black River (Leray): Pauquettes Rapids, Ottawa River, etc., Canada. Upper Pogonip: Eureka and White Pine Districts, Nevada. Plesiotype. Cat. No. 17284, U. S. N.M. (Walcott). Ctenodonta costata Branson. Ctenodonta costata Branson, Trans. Acad. Sci. St. Louis, 18, No. 4, 1909, p. 40, pi. 7, figs. 7, 8. Black River (Auburn-Decorah) : Lincoln County, Missouri. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 303 Ctenodonta cuneiformis Ulrich. Ctenodonta cuneiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 587, pi. 42, figs. 31-33. Tellinomya cuneiformis Miller, N. A. Geol. Pal., 1897, p. 785 (gen. ref.). Black River (Decorah): Six miles south of Cannon Falls, Minnesota. Cotypes.Czt. No. 46129, U.S.N.M. Ctenodonta curta (Hall). Tellinomya curta Hall, Pal. New York, 2, 1852, p. 86, pi. 27, figs. 10, 13. Lower Clinton: Wolcott, Wayne County, New York. Ctenodonta declivls Ruedemann. Ctenodonta declivis Ruedemann, Bull. New York State Mus., 162, 1912, p. 101, pi. 6, figs. 2, 3. Trenton (Snake Hill): Snake Hill, Saratoga County, New York. Ctenodonta diminuens (Simpson). Tellinomya (Palaeoneilo) diminuens Simpson, Trans. Amer. Philos. Soc., n. s., 16, 1889, p. 453, fig. 22. Simpson in Lesley Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1165, fig. Tellinomya cuneata Simpson in Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1164, fig. Tellinomya (Palaeoneilo)} cuneata Simpson, Trans. Amer. Philos. Soc., n. s., 16, 1889, p. 453, fig. 21. Clinton: Near Lewistown and Orbisonia, Pennsylvania. Ctenodonta donaciformis (Hall). Nucula? donaciformis Hall, Pal. New York, 1, 1847, p. 316. Tellinomya donaciformis Hall, Canadian Nat. Geol., 1, 1856, p. 395 (gen. ref.). Ctenodonta donaciformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen. ref.). Trenton: Middleville, New York. Ctenodonta dubia (Hall). Tellinomya dubia Hall, Pal. New York, 1, 1847, p. 153, pi. 34, figs. 6a-f ; Canadian Nat. Geol., 1, 1856, p. 392, figs. 4, 5. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1165, figs. Lyonsia dubia Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, figs. 7, 8, 12, 13. Ctenodonta dubia Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, fig. 163a, b. Trenton: Middleville, Watertown, Trenton Falls, etc., New York. Ctenodonta dubiaformls Raymond. Ctenodonta dubiaformis Raymond, Amer. Jour. Sci., 20, 1905, p. 371. Chazyan (Crown Point): Sloop Bay, Valcour Island, New York. Ctenodonta elllptlca (Hall). Tellinomya elliptica Hall, Pal. New York, 2, 1852, p. 102, pi. 30, fig. 4b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1165, fig. Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 562, pi. 37, figs. 4a-c. Upper Clinton: Near Mohawk, New York. Upper Medinan (Brassfield): Todds Fork near Wilmington, Ohio. Ctenodonta equilatera (Hall). Tellinomya? equilatera Hall, Pal. New York, 2, 1852, p. 330, pi. 75, fig. la-d. Grabau, Bull. New York State Mus., 92, 1906, p. 109, fig. 15. 304 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ctenodonta equllatera Continued. Tellinomya (Ctenodonta) equilatera Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 520 (gen. ref.). Ctenodonta equilatera Grabau and Sliiraer, N. A. Index Fossils, 1, 1909, p. 395. Cayugan (Cobleskill): Schoharie, New York. Ctenodonta fecunda (Hall). Nucula (Tellinomya) fecunda Hall, Geol. Surv. Wisconsin, 1, 1862, p. 55, fig. 1. Ctenodonta fecunda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 595, pi. 42, figs. 67-73. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502g-h. Richmond (Maquoketa): Dubuque, Iowa; Scales Mound, Illinois; Wisconsin; Minnesota. Flesiotypes.Csit. No. 46130, U.S.N.M. Ctenodonta filistriata Ulrich. Tellinomya levata Hall and Whitfield (not Hall, 1847), Pal. Ohio, 2, 1875, p. 82. Ctenodonta filistriata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 599, fig. 44a-e. Eden: Covington, Kentucky, and vicinity. Cotypes.G&t. No. 46131, U.S.N.M. Ctenodonta frobisherensis Schuchert. Ctenodonta frobisherensis Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 161, pi. 13, figs. 11-14. Mohawkian: Head of Frobisher Bay, Baffin Land. Cotypes.C&t. No. 28165, U.S.N.M. Ctenodonta gibberula Salter. Ctenodonta gibberula Salter, Canadian Org. Hem., dec. 1, 1857, p. 38, pi. 8, fig. 6. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 587, pi. 42, fig. 37; fig. 44f-g, p. 599. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 393, fig. 502c-d. Tellinomya ventricosa Hall i Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 27; Rep. Geol. Surv. Wisconsin, 1862, p. 38, fig. 4. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 307, pi. 2, figs. 7a-c. Chamberlin, Geol. Wisconsin, 1, 1883, p. 156. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 51, pi. 6, figs. 1-4. Black River: Pauquette Rapids, etc., Canada (Leray), Beloit, Wisconsin; Minne- sota; Illinois; Iowa; etc. Stones River (Murfreesboro) : Murfreesboro, Tennessee. PZmofypg. Cat. No. 46132, U.S.N.M. Ctenodonta glbbosa (Hall). Tellinomya gibbosa Hall, Pal. New York, 1, 1847, p. 153, pi. 34, figs. 5a,b. Les- ley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1168, figs. Tellinomya (Ctenodonta) gibbosa Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 520 (gen. ref.). Lyonsia gibbosa Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, fig. 3. Ctenodonta gibbosa Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 176, fig. 165. Trenton: Middleville, New York. Ctenodonta hamburgensis (Walcott). Tellinomya Hamburgensis Walcott, Mon. U. S. Geol Surv., 8, 1884, p. 76, pi. 11, figs. 1, la. Ctenodonta hamburgensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 605, pi. 42, figs. 91, 92. Upper Pogonip: Eureka District, Nevada. Black River (Decorah): Chatfield, Minnesota. Holotype and plesiotype Cat. Nos. 17286, 46133, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 05 Ctenodonta hartsvillensis Safford. Ctenodonta Hartsvillensis Safford, Geol. Tennessee, 1869, p. 287, pi. 2 (!;, I;gs. 3a-f. Tellinomya (Ctenodonta) hartsvillensis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1168, figs. Trenton: Hartsville, etc., Tennessee (Catheys); Kentucky (Flanagan). Ctenodonta? hilli (Miller). Tellinomya hilli Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 230 f fig. 20; N. A. Geol. Pal., 1889, p. 515, fig. 931. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1021, pi. 48, fig. 6. Ctenodonta? hilli Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen ref.). Richmond (Whitewater-Saluda) : Near Osgood, Indiana. Ctenodonta inflata (Hall). Tellinomya inflata Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 26; 1862, p. 38, figs. 4, 5. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 49, pi. 6, figs. 10-12. Black River (Platteville): Mineral Point, Wisconsin. Ctenodonta intermedia (Ulrich). Tellinomya intermedia Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1892, p. 218, text fig. 4. Ctenodonta intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 601, pi. 42, figs. 95-97. Trenton (Prosser): Wykoff, etc., Minnesota. Cotypes.Ca.t. No. 46134, U.S.N.M. Ctenodonta iphigenia Billings. Ctenodonta Iphigenia Billings, Geol Canada, Geol. Surv. Canada, 1863, p. 216, fig. 221; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 152, fig. 132 (adv. sheets 1862). Tellinomya Iphigenia Miller, N. A. Geol. Pal., 1889, p. 515 (gen. rof.). Richmond: Cape Smyth, Lake Huron. Ctenodonta jerseyensis Weller. Ctenodonta jerseyensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 164, pi. 11, fig. 17. Black River ( Jacksonburg) : Jacksonburg, New Jersey. Ctenodonta? lata (Hall). Tellinomya lata Hall, Pal. New York, 2, 1852, p. 85, pi. 27, fig. 7. Clinton: Wolcott, New York. Ctenodonta levata (Hall). Nucula levata Hall, Pal. New York, 1, 1847, p. 150, pi. 34, figs, la-i . McCoy, Brit. Pal. Rocks and Foss., 1854, p. 285, pi. 1 K, figs. 4, 5. Leda levata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 173, pi. 14, fig. 10. Tellinomya levata Hall, Canadian Nat. Geol., 1, 1856, p. 395 (gen. ref.). Hitch- cock, Geol. Vermont, 1, 1861, p. 295. Hall, Desc. N. Sp. Fossils, Cincinnati, Ohio, 1871, pi. 3, fig. 27. Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., ?S79, p. 578, fig. 3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1168, figs. Tellinomya (Ctenodonta) levata Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 521 (gen. ref.). 84243 Bull. 9215 20 306 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cteiiodonta levata Continued. Ctenodonta levata Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, figs. 162a, b. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 165, pi. 11, figs. 18-22. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394. Ruede- mann, Bull. New York State Hue., 162, 1912, p. 100, pi. 6, fig. 1. Trenton: Middleville, Trenton Falls, etc., New York; New Jersey; Pennsylva- nia; Kentucky, etc. CTENODONTA TJMBATA Raymond. See Vanuxemia limbata. CTENODONTA LOGANI Salter (part). See Ctenodonta nasuta. Ctenodonta logani Salter. Tellinomya dubia Hall (not Hall, 1847), 10th Ann. Rep. Reg. Univ. New York, 1857, p. 183, figs. 4, 5. Ctenodonta logani Salter, Canadian Org. Rem., dec. 1, 1859, p. 36, pi. 8, figs. 3, 3a. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 591, pi. 42, figs. 26-28. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502a-b. Black River: Pauquettes Rapids, Ottawa River, etc., Canada (Leray); Beloit, Wisconsin (Platteville). Ctenodonta longa (Ulrich). Tellinomya longa Ulrich, Amer. Geol., 10, 1892, p. 103, pi. 7, figs. 17, 18. Ctenodonta longa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 590, pi. 38, figs. 30, 31. Black River (Decorah): Goodhue County, Minnesota. Holotype.C&t. No. 46135, U.S.N.M. Ctenodonta lorrainensis Foerste. Ctenodonta lorrainensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 305, pi. 3, figs. 8a-b. Cincinnatian (Pulaski): Near Worthville and Lorraine, New York; Chambly, Quebec. Ctenodonta inachseriformis (Hall). Nucula machasriformis Hall, Geol. Rep. 4th Dist. New York, 1843, p. 76, fig. 2; tab. ill. 8, fig. 2. Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306, fig. 2. Tellinomya machseriformis Hall, Pal. New York, 2, 1852, p. 85, pi. 27, figs. 8a-d, 9. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1169, fig. Ctenodonta machseriformis Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394. Cypricardia? angusta Hall, Nat. Hist. New York, Geol., 4, 1843, p. 76, fig. 6; tab. ill. 8, fig. 6. Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306, fig. 6. Cypricardites angustus Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 178, fig. Lower Clinton: Wolcott, New York. Ctenodonta mactriformis (Hall). Nucula mactrasformis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 76, fig. 4; tab. ill. 8, fig. 4. Nucula mactriformis Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306. fig. 4. Tellinomya mactriformis Miller, N. A. Geol. Pal., 1889, p. 515 (gen. ref.) Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1169, fig. Lower Clinton: New York. Ctenodonta madisonensis Ulrich. Ctenodonta madisonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 597, pi. 42, figs. 65-66. Richmond (Arnheim): Madison, Indiana. Holotype.Czt. No. 46136, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 307 Ctenodonta medialis Ulrich. Ctenodonta medialis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 593, pi. 42, figs. 50-52. Black River (Decorah): Minneapolis, and near Cannon Falls Minnesota; Lincoln County, Missouri. Cotypes. Cat. Nos. 46137, 46138, U.S.N.M. Ctenodonta minima (Foerste). Nucula minima Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 93, pi. 14, figs. 8a-c. Tellinomya (Nucula?) minima Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 563, pi. 26, figs. 8a-c; pi. 37, figs. 13a-c. Upper Medinan (Brassfield): Huffman's Quarry, near Dayton, Ohio. Ctenodonta nasuta (Hall). Tellinomya nasuta Hall, Pal. New York, 1, 1847, p. 152, pi. 34, figs. 3a-c. Pictet, Traite cle Pal., 2d ed., 3, 1855, p. 534, pi. 79, fig. 19. Hall, Canadian Nat. Geol., 1, 1856, p. 392, figs. 1-3; 10th Rep. New York State Cab. Nat. Hist., 1857, p. 183 (ext., p. 143), fig. 2 (part). Hitchcock, Geol. Vermont, 1, 1861, p. 296, fig. 204. Whitfield, Geol. Wisconsin, 4, 1882, p. 207, pi. 5, fig. 12. Chamberlin, Geol. Wisconsin, 1, 1883, p. 156, fig. Miller, N. A. Geol. Pal., 1889, p. 515, fig. 932. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1169, fig. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 446, pi. 10, fig. 1. Tellinomya (Ctenodonta) nasuta Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 521 (gen. ref.). Lyonsia nasuta Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, fig. 40. Ctenodonta logani Salter, (not Salter, 1859), Rep. Brit. Assoc. Adv. Sci., 1851 p. 63. Ctenodonta nasuta Salter, Canadian Org. Rem., dec. 1, 1859, p. 35, pi. 8, figs. 1, 2. Billings, Canadian Nat. Geol., 4, 1859, p. 446; Geol. Canada, Geol. Surv. Canada, 1863, p. 176, figs. 166a, b. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 4, fig. 15a. figs. 8-12. Trenton (Canajoharie): Canajoharie, New York. Cyathophycus(?) walcotti (Rauff). Dictyophytra(?) Walcotti Rauff, Palseontographica, 40, 1394, p. 249, pi. 4, fig. 12. Hall and Clarke, Mem. State Mus. New York, 2, 1898, p. 50. Utica: Holland Patent, Oneida County, New York. Plesiotype.G&t. No. 25348, U.S.N.M. CYATHOPHYLLOIDES THOMII Walcott. See Columnaria (Palaeophyllum) thomi. CYATHOPHYLLUM Goldfuss. Genotype: C. caespitosum Goldfuss. Cyathophyllum Goldfuss, Petrefacta, 1826, pp. 54, 244. Koninck, Desc. Ani- maux Fossiles, Liege, 1842, p. 20. Dana, Wilkes' U. S. Expl. Exped ., 1838-42, 7, Zoophytes, 1846, p. 355. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5, pp. 167, 360). McCoy, British Pal. Rocks Foss., 1854, p. 69. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 455. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 364. Goldfuss, Pe- trefacta, 2d ed., pt. 1, 1862, p. 51. Lindstrom, Geol. Mag., 3, 1866, p. 359. Koninck, Animaux Foss. Terr. Carb. Belgique (Mem. 1'Acad. Royale Sci. de Belgique, 39, p. 46), 1872. Dybowski, Archiv. f. Naturf. Liv., Ehst. und Kurl., 5, 1873, p. 336. Rominger, Geol. Surv. Mich., 3, pt. 2, 1876, p. 98. Zittel, Handb. Pal., 1, 1879, p. 230. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 335. Freeh, Pal. Abh. Dames and Kayser, 3, Heft 3, 1886, p. 53. Miller, N. A. Geol. Pal., 1889, p. 181. Sherzer, Amer. Geology, 7, 1891, pp. 290-295; Bull. Geol. Soc. Amer., 3, 1892, p. 279. Koken, Die Leitfossilien, Leipzig, 1896, p. 309. Miller, N. A. Geol. Pal., 2d App., 1897, p. 727. Gra- bau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 128; 7, 1901, p. 138; Bull. New York State Mus., 45, 1901, p. 138. Zittel-Eastman Textb. Pal., 1, 1900, p. 76; ibid., 2d ed., 1913, p. 84. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 133. Pocta, Syst. Sil. Centre Boheme, 8, pt. 2, 1902, p. 87. Cyathophyllum agglomeratum Castelnau. Not recognized. Cyathophyllum agglomeratum Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 49, pi. 21, fig. 5. Silurian: Manitoulin Islands, Lake Huron. Cyathophyllum ammonis Castelnau. Not recognized. Cyathophyllum ammonis Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p: 48, pi. 21, fig. 1. Silurian?: New York. Cyathophyllum anticostiense Billings. Cyathophyllum Anticostiense Billings, Pal. Foss., 1, 1865, Geol. Surv. Canada, p. 109 (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 34 (loc. ref.). Lambe, Ottawa Nat., 12, 1899, p. 237; Cont. Canadian, Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 134, pi. 10, figs. 5-8. Anticostian (Jupiter River and Chicotte): Southwest Point, etc., Anticosti. Cyathophyllum arborescens Castelnau. Not recognized. Cyathophyllum arborescens Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 40, pi. 22, fig. 2. Silurian: Northern shore of Lake Huron. 320 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyathophyllum articulatum (Wahlenberg). Madreporites articulatus Wahlenberg, Nov. Act. Sco. Upsala, 8, 1821, p. 87. Cyathophyllum articulatum Milne-Edwards and Haime, Polyp. Foss. des. Terr. Pal., 1851, p. 377; British Foss. Corals, 1855, p. 282, pi. 67, figs. 1, la. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 584. Lambe, Ottawa Nat., 12, 1899, p. 219; Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 135, pi. 10, figs. 9a, b. Silurian: Gotland and England ; "The Forks," Scaumenac River, Isle of Man, Lake Temiscaming, Quebec; Dobbins Bay, Arctic America (Niagaran). Cyathophyllum atlas Castelnau. Not recognized. Cyathophyllum atlas Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 47, pi. 20, fig. 2. Silurian: Drummond Island, Lake Huron. Cyathophyllum bullulatum Hall. Cyathophyllum bullulatum Hall, -35th Rep. New York State Mus. Nat. 1884, p. 416. Niagaran?: Perry County, Tennessee. Cyathophyllum caliculare Owen. Not recognized. Cyathophyllum caliculare Owen, Geol. Expl. Iowa, Wisconsin, and Illinois, 2d ed., 1844, p. 69, pi. 13, fig. 5. Niagaran: Iowa and Wisconsin. CYATHOPHYLLUM CALYCULUM Foerste. See Enterolasma calyculus. CYATHOPHYLLUM CELATOR var. DAYTONENSIS Foerste. See Zaphrentis celator day- tonensis. Cyathophyllum clarki Swartz. Cyathophyllum clarki Swartz, Maryland Geol. Surv., Low Dev., 1913, p. 201, pi. 19, figs. 5-9. Helderbergian (Keyser): Devils Backbone, near Cumberland; Pinto, etc., Maryland. Cyathophyllum conicum Castelnau. Not recognized. Cyathophyllum conicum Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 48, pi. 21, fig. 4. Silurian?: Banks of the Ohio, Illinois. CYATHOPHYLLUM CORITHEUM Owen. See Ptychophyllum expansum. Cyathophyllum densiseptatum Foerste. Cyathophyllum densiseptatum Foerste, Bull. Geol. Surv. Kentucky, 7, 1906, p. 314, pi. 6, figs. 2a-f. Clinton (Waco): Near Estill Springs, etc., Kentucky. Cyathophyllum dilatatum Castelnau. Not recognized. Cyathophyllum dilatatum Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 48, pi. 21, fig. 3. Silurian: Banks of Lake Huron. Cyathophyllum distinctum Castelnau. Not recognized. Cyathophyllum distinctum Castelnau, Essai Syst. Sil. PAmerique Septent., 1843, p. 49, pi. 22, fig. 8. Silurian: Manitoulin Islands, Lake Huron. CYATHOPHYLLUM ERIPHYLE Billings. See Omphyma eriphyle. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 321 Cyathophyllum euryone Billings. Cyathophyllum Euryonc Billings, Pal. Foes., 1, Geol. Surv. Canada, 1865, p. 110 (adv. sheets, 1862); Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866, p. 34 (loc. ref.). Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. "2. 1901, p. 135, pi. 11, figs. 1, la, b. Anticostian (Gun River-Chicotte) : The Jumpers, etc., Anticosti. Cyathophyllum faceliun l<> SPECIES. Ml* 5 ( !y beloldes ui i r us Continued. Cybcle minis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 74;;. Chazyan (Quebec N. P): Table Head, Pistolet Bay, and Portland Creek, Newfoundland. Cybeloldes primus (Raymond). Glaphurus primus Raymond, Ann. Carnegie Mus., 3, 1905, p. 362, pi. 14, figs. 7,8. Cybeloides prima Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913, p. 64. Cybele valcourensis Raymond, Ann. Carnegie Mus., 3, 1905, p. 362, pi. 14, fig. 9. Cybele prima Raymond and Carraway, Ann. Carnegie Mus., 3, 1906, p. 601. Raymond, ibid., 7, 1910, p. 75, pi. 19, fig. 19; 7th Rep. State Geol. Vermont, .1910, p. 237, pi. 36, figs. 7-9; pi. 39, fig. 19. Chazyan (Day Point, Cro\rn Point): Valcour Island, New York. Cybeloides? wlnchelli (Clarke). Cybelo winchelli Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 742, fig. 59. Cybeloides? winchelli Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 64. Trenton (Prosser): Fillmore County, Minnesota. YCLASTER Billings. See Edrioaster Billings. YCLENDOCERAS Grabau and Shimer. See Endoceras Hall. CYCLOCERAS McCoy. Genotype: Orthoceras annulare Fleming. Oycloceras McCoy, Synop. Carb. Foss. Ireland, 1844, p. 10. Saemann, Palseonto- graphica, 3, 1852, p. 162. McCoy, British Pal. Rocks Foss., 1854, p. 318. Barrande, Syst. Sil. Centre Boheme, 2, pt. 3, 1874, p. 770. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 275; Zittel-Eastman Textb. Pal., 1, 1900, p. 518. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 57. Hyatt, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 599. Heloceras Barrande. Syst, Sil. Centre Boheme, 2, pt. 3, 1874, p. 773. Cycloceras ainycus (Hall). Orthoceras amycus Hall, llth Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 324, pi. 33, figs. 3, 4; Trans. Albany Inst., 10, 1883, p. 74.- Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 541, figs. Orthoceras (Cycloceras) amycus Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 546, pi. 33, fig. 5. Niagara n (Waldron): Waldron, Indiana; Newsom, Tennessee. Upper Medinan (Brassfield): Dayton, Ohio. Cycloceras crocus (Billings). Orthoceras perammlatum Billings (not Portlock, 1843), Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 319. Orthoceras Crocus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 22. Richmond (English Head) and Garaachian: West End, etc., Anticosti. Cycloceras inceptum (Foerste). Orthoceras inceptum Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 117, pi. 13, figs, la-c; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 286. Orthoceras (Cycloceras) inceptum Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 543, pi. 25, figs. la-c. I'pper Medinan (Brassfield): Todds Fork near Wilmington and Dayton, Ohio. 326 l.n.Lli'TlN !rj, I'NITEU STATES NATIONAL MU8EI .1 . Cycloceras Inceptum acceleratum (Foerste). Orthoceras inceptum var. acceleratum Foerste, Geol. Surv. Oldo, Pal., 7, 1893, p. 545, pi. 37A, fig. 10. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. Cycloceras lesueuri (Clarke). Orthoceras lesueuri Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 785, pi. 53, fig. 4: pi. 55, figs. 8, 9. Cycloceras lesueuri Grabau and Sliimer, X. A. Index Fossils, 2, 1910, p. 57, fig. 1256. Black River (Platteville): Cannon Falls, Minnesota. Cotypes. Cat, No. 46528, TJ.s.N.M. Cycloeeras nicolleti (Clarke). Orthoceras nicolleti Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 784, pi. 55, figs. 1-2. Cycloeeras nicolletti Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 58, fig. 1258. Black River (Platteville): Belle Creek, Minnesota. Cycloeeras novacarllslense (Foerste). Orthoceras (Cycloeeras) novacarlislensis Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 281, pi. 5, fig. 25; pi. 8, fig. 1; Geol. Surv. Ohio, Pal., 7, 1893, p. 545, pi. 30, fig. 25; pi. 33, fig. 1. Tipper Medinan (Brassfield): Brown's Quarry, near New Carlisle, Ohio. Cycloceras olorus (Hall). Orthoceras vertebrale Hall (not Schlotheim), Pal. New York, 1, 1847, p. 201, pi. 43, figs. 5a-c. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 328. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 608. Lincklaen, 14th Rep. New York State Cab. Nat. Hist,, 1861, pi. 3, fig. 4. Hitchcock, Geol. Vermont, 1, 1861, p. 298, fig. 208. Chamberlin, Geol. Wisconsin, 1, 1883, p. 158, fig. Orthoceras olorus Hall in Miller's American Pal. Foss., 1877, p. 245. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 554, fig. Clarke, Geol. Min- nesota, 3, pt. 2, 1897, p. 788, pi. 55, figs. 3, 5. Cycloceras olorus Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 57, fig. 1257. Trenton: Middle ville, etc., New York; Wykoff, etc., Minnesota (Prosser). Black River (Platteville) : Mineral Point and Janesville, Wisconsin; St. Charles and Holden, Minnesota. Cycloceras olorus bafflnense (Schuchert). Orthoceras olorus var. baffinensis Schuchert, Proc. V. S. Nat. Mus., 22, IftOO, p. 169, pi. 12, figs. 19-22. Mohawkian: Head of Frobisher Bay, Baffin I. and. Cotypes. Cat. No. 28192, TJ.S.N.M. Cycloceras perroti (Clarke). Orthoceras perroti Clarke, Geol. Minnesota, 3, pt, 2, 1807. p. 7S:>. pi. 54, figs. 4, 5. Richmond (Maquoketa): Granger, Minnesota. Cycloceras? rectiannulatuni (Hall). Orthoceras rectiannulatum Hall, Pal. New York, 1, 1847, p. 34, pi. 7, figs. 2, 2a. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 149. 'yoloceras? (Spyroceras?) rectiannulatum Rnedemann, Bull. Xew York Mus., 90, 1906, p. 506. Chazyan: Clinton County, Xew York. LIST O* : GENJS1U. A*L> SFKU^JbJft. 327 Cycloceras teretiforme (Hall). Orthoceras teretiforme Hall, Pal. New York, 1, 1847, p. 198, pi. 42, figs. 8a, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 149. Orthoceras (Cycloceras) teretiforme Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 642 (gen. ref.). Trenton: Watertown, New York. Tvc i.ot tKUA Foerste. See Plectorthis, subgenus Encuclodema Foerste. CYCLOCONCHA Miller. Genotype: C. mediocardinalis Miller. Anodontopsis (part) Meek (not McCoy), Amer. Jour. Soi. Arts, 3d ser., 2, 1871, p. 297; Pal. Ohio, 1, 1873, p. 140. rydoconcha Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 231. Ulricli, Geol. Surv. Ohio, 7, 1893, p. 686. Zittel, Handb. Pal., 2, 1881, p. 103. Miller, N. A. Geol. Pal., 1889, p. 474. OrthodontiscusMeek, Geol. Surv. Ohio, Pal., 1, 1873, p. 140. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 983. Observation. See Ulrich (1893) for a discussion of the name Orthodontiscus. Cycloconcha mediocardinalis Miller. Cycloconcha mediocardinalis Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 231, figs. 21, 22; N. A. Geol. Pal., 1889, p. 474, fig. 809. Ulrich, Geol. Surv. Ohio, 7, 1893, p. 686, pi. 48, fig. 12; pi. 51, figs. 14-21. Eden (Sou thgate): Cincinnati, Ohio, and vicinity. Plesiotype.C&t. No. 46161, U.S.N.M. Cycloconcha milleri (Meek). Anodontopsis? Milleri Meek, Amer. Jour. Sci., 3d ser., 2, 1871, p. 297; Geol. Surv. Ohio, Pal., 1, 1873, p. 140, pi. 12, figs, la-d. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 227; N. A. Geol. Pal., 1889, p. 462, fig. 775. Cycloconcha milleri Ulrich, Geol. Surv. Ohio, 7, 1893, p. 686 (gen. ref.). Orthodontiscus milleri Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1015, pi. 47, figs. 8, 8c. Richmond (Waynesville) : Versailles, Indiana. Cotypes and plesiotypes.C&t. Nos. 26409, 46162, U.S.N.M. Cycloconcha oblonga Foerste. Cycloconcha oblonga Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 137, pi. 1, fig. 6. Trenton (Upper): Near Rogers Gap, Kentucky. Cycloconcha ovata Ulrich. Cycloconcha ovata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 687, pi. 48, figs. 13-15. Eden (Southgate): Cincinnati, Ohio, and vicinity. Cotypes. Cat. No. 46163, U.S.N.M. CYCLOCRINITES Eichwald. Genotype: C. spaskii Eichwald. Cyclocriuites Eichwald, Schicht. Esthland, 1840, p. 192. Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, pp. 177, 468. Eichwald, Leth. Ross. Pal. Russie, 1, 1860, p. 637. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 452. Niles, Proc. Boston Soc. Nat. Hist., 10, 18-J5, p. 19. Cyclocrinug Kayser, Zeits. d. d. geol. Gesell., 27, 1875, p. 780. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, pp. 15, 16. Roemer, Leth. geog., 1 Theil, Leth. Pal., Erste Lief, 1880, p. 292. Zittel, Handb. Pal., 1, 1880, p. 728. Rauff, Zeits. d. d. geol. Gesell.. 40, 1888, p. 609. Roemer, 328 BULLETIN !>2, UNITED STATES NATIONAL MUSEUM. CYCLOCRINITES Continued. Neues Jahrb. f. Min., Geol. Pal., 1, 1888, p. 74. Stolley, Archiv. f. Anthrop. Geol. Schleswig-Holsteins, 1, Heft, 2, 1896, pp. 189, 270. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 77. Observation. See Pasceolns for a probable synonym. Cyclocrinites spaskii Eichwald. Cyclocrinites spaskii Eichwald, Ueber Silur. Schicht. Esthland, 1840, p. .192 (German ed.), p. 204 (French ed.); Urwelt von Russland, Heft 2, 1842, p. 32, pi. 1, fig. 8; Leth. Boss. Pal. Russie, 1 ? 1860, p. 638, pi. 32, figs. 21a-d. Cyclocrinus spaskii Eichwald, Bull. Soc. Imp. Nat. Moscou, 29, 1856, p. 124. Middle Ordovician: Esthonia, Russia. Doubtfully identified in the Appalachian Valley. CYCLOCRINUS Kayser. See Cyclocrinites Eichwald. CYCLOCRINUS CLAUDII Stolley. See Pasceolus claudii. CYCLOCRINUS DACTYLOIDES Stolley. See Cerionites dactyloides. CYCLOCRINUS DARWINII Stolley. See Pasceolus darwini. CYCLOCRINUS GLOBOSUS Stolley. See Pasceolus plobosus. CYCLOCRINUS GREGARIUS Stolley. See Nidulites gregarius. CYCLOCRINUS HALLI Stolley. See Pasceolus halli. CYCLOCRINUS INTERMEDIUS Stolley. See Nidulites intermedium. CYCLOCRINUS SPASKII Eichwald. See Cyclocrinites spaskii. CYCLOCYSTOIDES Billings and Salter. Genotype: C. halli Billings. Cyclocystoides Billings and Salter, Geol. Surv. Canada, dec. 3, 1858, p. 86. Hall, Decrip. new spec. Crin., 1866, p. 10; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 217. Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 34. Miller, N. A. Geol. Pal., 1889, p. 237. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 210, %. S. Raymond, Bull. Victoria Mem. Mus., 1, 1913. p. 25. Cyclocystoides anteceptus Hall. Cyclocystoides anteceptus Hall, Desc. new spec. Crin., etc.. 1866, p. 12; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 219. Black River: Escanaba River, Michigan. Cyclocystoides bellulus Miller and Dyer. Cyclocystoides bellulus Miller and Dyer, Jour. Cincinnati Soc. Nai . Hist., 1, 1878, p. 34, pi. 2, figs. 10, lOa. Maysville (Fairmount) : Cincinnati, Ohio. Cyclocystoides cincinnatiensis Miller and Faber. Cyclocystoides cincinnatiensis Miller and Faber, Jour. Cincinnati Roc. Nat. Hist., 15, 1892, p. 84, pi. 1, figs. 7, 8. Maysville (Corryville): Cincinnati, Ohio. Cyclocystoides halli Billings. Cyclocystoides Halli Billings, Geol. Surv. Canada, dec. 3, 1858, p. 86, pi. 10 bis, figs. 1-7. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 45 (loc. occ.). Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 25, pi. 3, figs. 1, 3, 4. Trenton (Curdsville) : Ottawa, Kirkfield, Hull, and Lake St. John, Canada. Armc LIST OK (, ENEMA AND SPEC1L>. 320 Cyclocystoldes liuroiieiisis Billings. Cyclocystoides Huronensis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 393, fig. 369. Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 29, pi. 3. fig. 2. Richmond: Rabbit Island, Lake Huron. Oyclocystoides illinolsensis Miller and Gurley. Cyclocystoides illinoisonsis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895, p. 61, pi. 5, figs. 27, 28. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 40, pi. 1, fig. 2. Upper Medinan (Girardean): Orchard Oreek, Alexander County, Illinois. Cyclocystoides magnus Miller and Dyer. Oyclocystoidee magnus Miller and Dyer, Jour. Cincinnati Soc. Nat, Hist., 1, 1878, p. 32, pi. 2, figs. 8, 8a. Miller, Jour. Cincinnati Soc. Nat. Hist.. 4, 1881, p. 70, pi. 1, figs. 2, 2a; N. A. Geol. Pal., 1889, p. 2:',7. Cyclocystoides sp. (?C. magnus) Miller and Fabor, Jour. Cincinnati Soc. Nut. Hist., 15, 1892, p. 85, pi. 1, figs. 13-15. Richmond (\Vaynesville) : Near Morro\v and Waynesville, Ohio. ?Maysville: Cincinnati, Ohio. ;. Cat. No. 40733, U.S.N..M. Cyclocystoides minus Miller and Dyer. Cyclocystoides minus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 33, pi. 2, fig. 5. Richmond: Morrow, Ohio. Cyclocystoides mundulus Miller and Dyer. Cyclocystoides mundulus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 34, pi. 2, fig. 7. Richmond: Morrow, Ohio. Cyclocystoides nitidus Faber. Cyclocystoides nitidus Faber, Jour. Cincinnati Soc. Nat. Hist., <), 1886, p. 17, pi. 1, fig. 1. Maysvillo (Conyville): Near Transit, Ohio. Cyclocystoides parvus Miller and Dyer. < yd ocystoides parvus Miller and Dyer, Jour. Cinoinnaii Soc. Nat. Hist. .1, 1878, p. 33, pi. 2, fig. 6. Richmond: Morrow, Ohio. Cyclocystoides salteri Hall. Cyclocystoides salteri Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 218, pi. 6, fig. 16 (adv. sheets, 1871). Bather, Treatise on Zool., pt. 3, Echinodenna, London, 1900, p. 211, fig. 8. Trenton: Near Saratoga, New York. CTCLOGNATHUS Linnarsson. Genotype: C. micropygus Linnarsson. < 'yclognathus Linnarsson, Geol. Foren. Stockholm Forh., 2, No. 12, 1875, p. 500. Brogger, Die sil. Etagen 2-3, Kristiania, 1882, p. 109. Zittel, Handb. d. Pal., 2, 1885, p. 596. Koken, Die Leitfossilien, Leipzig, 1896, p. 19. Cyclognathus rotundifrons Matthew. ( 'yclognathus rotundifrons Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 107, pi. 7, figs. 16a, b. Canadian (Brctonian Div. C3d): St. John, Now Brunswick. 330 BULLETIN 2, UNITED STATES NATIONAL MUSEUM. OTCLOGRAPTUS Spencer. Genotype: C. rotadentatus Spencer. Cyclograptus Spencer, Proc. Aiuer. Assoc. Adv. Sci., 31, 1883, p. 365; Bull. Mus. Univ. State Missouri, 1, 1884, p. 42; Trans. Acad. Sci. St. Louis, 4, 1884, p. 563, 592. Miller, N. A. Geol. Pal., 1889, p. 182 Ruedemann, Mem. New York State Mus., 11, pt, 2, 1908, p. 182. Cyclograptus rotadentatus Spencer. ( 'yctograptus rotadentatus Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 592, pi. 6, figs. 6, 6a; Bull. Mus. Univ. State Missouri, 1, 1884, No. 1, p. 42, pi. 6, figs. 6, 6a. Miller, N. A. Geol. Pal., 1889, p. 182, fig. 162. -Gurley, Jour. Geol., 4, 1896, pp. 94, 309. Ruedemann, Mem. New York State Mus., 11, 1908, p. 184, pi. 2, fig. 5, figs. 91, 92. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 45, 46, figs. 57, 58. Niagaran dolomite: Hamilton, Ontario. Clinton (Rochester): Clinton, New York. CYCLOLITES ROTULOIDES Hall. See Palseocyclus rotuloides. CYCLOLITUITES Remele. Genotype: C. applanatus Remelc. Cyclolituites Reineles Zeits. d. d. geol. Gesell., 38, 1886, p. 467. Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 505. Cyclolituites americanus Hyatt. Cyclolituites americanus Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 505. Canadian (Quebec): Gargamelle Cove, Newfoundland. CYCLONEMA Hall. Genotype: Pleurotomaria bilix Conrad. Cyclonema Hall, Pal. New York, 2, 1853, p. 89. Salter, Geol. Surv. Canada, Can. Org. Rem., dec. 1, 1859, pp. 23, 25. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 319. Zittel, Handb. Pal., 2, 1882, p. 187. Nettelroth, Ken- tucky FOBS. Shells, Geol. Surv. Kentucky, 1889, p. 187. Miller, N. A. Geol. Pal., 1889, p. 400. Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 6, 1889, p. 427. Koken, Die Leitfossilien, Leipzig, 1896, p. 120, fig. 101. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1056. Koken, Bull. Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 191; Neues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 24. Pilsbry, Zittel-Eastman Textb. Pal., 1, 1900, p. 448. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949. Grabau and Shimer, N. A. Index Fossils, 3, 1909, p. 668. Ball, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 530. CYCLONEMA (part) of Hall, Salter and others. See Trochonema Salter. Cyclonema bellulum Billings. Cyclonema bellula Billings, Cat. Sil. Foss. Aiiticosti, Geol. Surv. Canada, 1866, p. 55. Anticostian (Gun River): The Jumpers, Aiiticosti. CYCLONEMA BILEX Foerste. See Cyclonema daytonense. CYCLONEMA BILEX (part) Hall. See Cyclonema mediale. CYCLONEMA BILEX var. CONICA Miller. See Cyclonema bilix. CYCLONEMA BILEX var. LATA Meek. See Cyclonema bilix. Cyclonema bilix (Conrad). Pleurotomaria bilix Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 271, pi. 16, fig. 10. Hall (part), Pal. New York, 1, 1847, p. 305, pi. 83, figs. 4a~e. Roger*, Geol. Pennsylvania, 2, pt. 2, 1858, p. 820. fig. 620. LUBLIOORAPHIC J.IS'J OF (JKNLHA AND SPECIES. Cyclonema bilix: Continued. Turbo bilix D'Orbigny, Prod, de Pal., 1, 1849, p. o (gen. rcf. ). Emmons, Ainer. Geology, 1, pt. 2, 1855, p. 158. Cyclonema (Pleurotomaria) bilix Zittel, Handb. Pal., 2, 1882, p. 188, fig. 234. Cyclonerua bilix Hall, Pal. New York, 2, 1852, p. 89 (gen. ref.); 14th Rep. New York State Cab. Nat. Hist,, 1861, p. 92. Billings, Geol. Canada, Geol. Surv. ranada, 1863, p. 217, fig. 225. Hall, 24th Rep. New York State Cab. Nut! Hist., 1872, pi. 8, fig. 3. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 319. White, 2d Ann. Rep. Indiana Dep. Stat, Geol., 1889, p. 492, pi. 2, figs. 3, 4, 5. Ulrich, Amer. Geol., 1, 1888, p. 188, footnote. Lesley, Geol. Surv. Pennsyl- vania, Rep. P 4, 1889, p. 172, fig. Miller, N. A. Geol. Pal., 1889, p. 400, fig. 663. Keyes, Missouri Geol. Surv., 5, 1894, p. 154. Koken, Bull. Acad! Imp. Sci. St. Petersburg, 7, 1897, p. 191, fig. 34. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1058, pi. 58, figs. 35-39. Cyclonema bilex Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 958, pi. 40, figs. 2-2d. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 668, figs. 925 a, b. Cyclonema bilex lata Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 152, pi. 13, fign. 5e, 5f. Miller, Cincinnati Quart, Jour. Sci., 1, 1874, p. 320. Cyclonema bilex conica Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 320. Richmond (Arnheim-Whitewater): Richmond, etc., Indiana; Ohio; Kentucky; etc. CKt. Nos. 45763-15765, U.S.X.M. (Ulrich and Scofield). Cyclonema bilix fluctuatum (James). Cyclonema fluctuata James, Cat. L. Sil. Foss. Cincinnati Group, 1871, p. 8 (nom. mid.); Cincinnati Quart. Jour. Sci., 1, 1874, p. 152. Cyclonema bilix var. fluctuatum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1058, pi. 78, figs. 40-42. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 959, pi. 40, figs. 3-3b. Richmond (Arnheiin, Waynesville) : Warren and Clinton Counties, Ohio; Indiana; Tennessee. PUsiotypc.Vrt, No. 45767, U.S.N.M. CYCLONEMA CANCELLATUM Hall. See Strophostylus cancellatus. CYCLONEMA CINCINNATIENSE Miller. See Cyclonema varicosuui. Cyclonema commune Billings. Cyclonerna communis Billings, Cat. Sil. FOBS. Anticosti, Geol. Surv. Canada, 1866, p. 55. Aiiticostian (Jupiter River, Chicotte): The Jumpers, Anticosti. Cyclonema cushingf Ruedemaun. Cyclonema cuahingi Ruedemann, Bull. Now York State Mus., 162, 1912, pi. 7, figs. 8-10. Trenton (Snake Hill): Snake Hill, Saratoga County, New York. Cyclonema daytouense Foerste. Cyclonema bilex Foerste (not Conrad), Bull. Sci. Lab. Denison Univ., 1, 1885, p. 94; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 290, pi. 5, fig. 15; Geol. Surv. Ohio, Pal., 7, p. 551, pi. 26, fig. 15, var. p. 130, fig. 15. Cyclonema daytonensis Foerste, 24th Ann. Rep. Indiana Geol. Nat. Hist. Surv., 1899, p. 77; Jour. Geol. ,11, 1903, p. 707. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 100, pi. 6, fig. 4; pi. 7, fig. 21. Upper Medinan: Dayton and Todds Fork, Ohio (Brassfield); Thebes, Illinois; and Edgewood, Missouri (Edgewood). 332 BULLETIN \r2, UNITED STATES NATIONAL AH'SEUM. Cycloneina docuriini Billings. Cycloneina decora Billings, Cat. Sil. FOSH. Anticosti, Geol. Surv. Canada, 1866, p. 56. Anticostian (Chicotte): Southwest Point, Anticosti. CYCLONEMA ELEVATA Hall. See Strophostylus elevatus. CYCLONEMA FLUCTUATA James. See Cyclonema bilix fluctuatum. Cyclonema gracile Ulrich. Cyclonema gracile Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1062, pi. 82, figs. 55-61. Maysville (Mt. Hope) : Cincinnati, Ohio, and vicinity. Cotypes.C&t. Nos. 45768, 45769, U.S.N.M Cyclonema graclle strlatulum Ulrich. Cyclonema gracile var. striatulum Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1062, pi. 82, figs. 59-61 (striatellum on plate). Maysville (Mt. Hope): Cincinnati, Ohio, and vicinity. . No. 45770, U.S.N.M. Cyclonema hageri Billings. Cyclonema Hageri Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 178, fig. 169; Pal. Fossils, 1, Geol. Surv. Canada, 1863, p. 29, fig. 27 (adv. sheets 1862). Miller, N. A. Geol. Pal., 1889, p. 401, fig. 664. Trenton: Smith's Quarries, Montreal, Quebec. Cyclonema hallianum Salter. Cyclonema Halliana Salter, Geol. Surv. Canada, dec. 1, 1859, p. 26, pi. 6, fig. 1. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 178, fig. 168. Miller, N. A. Geol. Pal., 1889, p. 401, fig. 665. Black River (Leray): PaUquette's Rapids, Ottawa River, Canada. Cyclonema hurnerosum Ulrich. Cyclonema humerosum Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1061, pi. 78, figs. 43-46. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 960, pi. 40, figs. 5-5c. Maysville (McMillan) and Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Tennessee. ?. Cat, Nos. 45771, 45772, U.S.N.M. CYCLONEMA HUMILIS Billings. See Diaphorostoma humile. Cyclonema Inflatum Ulrich. Cyclonema inflatum Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1060, pi. 78, figs. 31, 32. Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. Cotypes.C&t. No. 45773, U.S.N.M. Cyclonema (SHolopea) lima turn Ulrich. Cyclonema (?Holopea) limatum Ulrich, Geol. Minnesota, 3, pt. 2, 1807, p. 10(i:^ pi. 82, figs. 62-64. Maysville (Fairmount): Cincinnati, Ohio. Cotypes. Oat. No. 45774, U.S.N.M. Cyclonema medlale Ulrich. Cyclonema bilex Meek, Geol. Surv. Ohio, Pal., 1, 1ST:',, p. 151, pi. 13, li<. c, d (notg). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 333 Cycloiieina mediate Continued. Cyclonema niediale, Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1059, pi. 78, iigs. 29, 30. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 960, pi. 40, figs. 4, 4a, Grabau and Shinier, N. A. Index Fossils. 1, 1900, p. 669, fig. 925c, d. Maysville (Fairmount) : Cincinnati, Ohio; Kentucky and Indiana. Cotypea.C&t. No. 45775, U.S.N.M. < . l!M)(>. p. 502, j)l. 35, figs. 5-6, fig. 57. Canadian (Bcekinantown): Fort Casein, Vermont. Cyclostomiceras orodcs (Billings). ( 'yrtoceras Orodcs Billings, Pal. Foss., 1, Geol. Sum. Canada (adv. sheets, 1862), 1865, p. 162. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 103, pi. 14, figs. 7, 7a, 8a, b, 9. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 88, pi. 15, fig. 3-11. ('yrtoceras (Cyclostomiceras) erodes Grabau, Michigan, Geol. Surv., Geol. Ser., 1, 190'J, p. 197, pi. 28, figs. 6, 7; pi. 29, figs. 2, 3. Cyclostomiceras erodes Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 120, fig. 1358-60. Niagara 11 (Guolph): New Hope, Ontario. Mouroan (Amherstburg and Raisin River): Detroit River region. < ' YI K OCRINUS Miller. See Barrandeocrinus Angelin. CYLINDROCCELIA Ulrich. Genotype: C. endoceroidea Ulrich. Cylindrocoelia Ulrich, Amer. Geol., 3, 1889, pp. 235, 245. Miller, N. A. Geoi. Pal., 1889, p. 158. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 56. Wincholl and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 77. Cylindrocoelta covingtonensis Ulrich. < 'ylindrocoilia covingtonensis Ulrich, Amer. Geol., 3, 1889, p. 247. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 56. Maysville (Fairmount) : Covington, Kentucky. < ''olypc*. Cat. No. 46550, U.S.N.M. Cylindroccelia eudoceroidea Ulrich. ('ylindrocooli a endoceroidea Ulrich, Amer. Geol., 3, 1889, p. 246, figs. 9, 10. Black River (Lowville): High Bridge, Kentucky. Cylindrocffilia ininiiesotensis Ulrich. Cylindrocoelia minnesotensis Ulrich, Amer. Geol., 3, 1889, p. 248. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 78, pi. G, figs. 1-3. Black River (Decorah) : Minneapolis, St. Paul, and Fountain, Minnesota. Cotypes. Cat. Nos. 46551, 46552, U.S.N.M. Cylindrocoelia minor Ulrich. Cylindrocoelia minor Ulrich, Ainer. Geol., 3, 1889, p. 248. Trenton: Harrodsburg Junction, Kentucky. CTLINDROHELIUM Grabau. Genotype: C. profundum Grabau. Cylindrohelium Grabau, Geol. Surv. Michigan, Geol. Ser., 1, 1909, p. 102. Cylindrohelium heliophylloides Grabau. Cylindrohelium heliophylloides Grabau, Geol. Surv. Michigan, Geol. Ser., 1, 1909, p. 103, pi. 10, fig. 7. I rpcr Monroan (Lucas): Salt shaft, Detroit, Michigan. Cylindrohelium profundum Grabau. Cylindrohelium profundum Grabau, Geol. Surv. Michigan, Geol. Ser., 1, 1909, p. 102, pi. 11, figs. 4-6, 7. Upper Monroan (Lucas): Salt shaft, Detroit, Michigan; near Sylvania, Ohio. Silurian: North Fork of Saskatchewan River, Canada. 84243 Hull. :>:_' in 22 888 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. CYMATONOTA Ulrich. Genotype: C. typicalis Ulrich. Orthonota Conrad (part), New York Ann. Geol. Rep., 1841, p. 51. Hall, 1847, Pal. New York, 1, 1841, p. 299. Orthodesma Hall and Whitfield (part), Pal. Ohio, 2, 1875, p. 93. Chaenodomus Ulrich, Geol. Minnesota, 3, pt. 2, 1893, p. 477 (not defined). Cymatonota Ulrich, Geol. Sun-. Ohio, 7, 1893, p. 661. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 980. Cymatouota attenuata Ulrich. 0>matonota attenuata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 604, pi. 55, figs. 12-14. Richmond (Waynesville); Waynesville, Ohio. Cotypes.Czt. No. 46164, U.S.N.M. Cymatonota constricta Ulrich. Cymatonota constricta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 664, pi. 55, figs. 10, 11. Richmond (Waynesville): Butler County, Ohio, and Versailles, Indiana. Holotype.Cai. No. 46165, U.S.N.M. Cymatonota cylindrica (Miller and Faber). Orthodesma cylindricum Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 22, pi. 1, figs. 1-4. Richmond (Waynesville): Warren County, Ohio. Cymatonota lenior Foerste. Cymatonota lenior Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 290, pi. 1, fig. 9. Cincinnatian (Pulaski): Riviere des Hurons, near St. Jean Baptiste, Quebec. Cymatonota parallel a (Hall). Orthonota parallela Hall, Pal. New York, 1, 1847, p. 299, pi. 82, fig. 7 (not 7a, b, d). ?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 173, pi. 13, fig. 14. (?)Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 216, fig. 224. (?)Miller, Cincinnati Quart. Jour. Sci., 1, 1874,-p. 221. (?)0rthodesma parallela Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 96. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 565, figs. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, pi. 47, fig. 5. Cincinnatian: Pulaski, Lorraine, etc., New York (Pulaski); Cincinnati, Ohio (Maysville). Cymatonota pholadis (Conrad). Pterinea pholadis Conrad, Amer. Geol. Rep. New York, 1838, p. 118. Orthonota pholadis Hall, Pal. New York, 1, 1847, p. 299, pi. 82, fig. 6. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 174. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 222. Cymatonota pholadis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 291, pi. 3, fig. 7. Cincinnatian: Pulaski, etc., New York (Pulaski); (?)Cincinnati, Ohio (Maye- ville). Cymatonota productifrons Ulrich. Cymatonota productifrons Ulrich, Geol. Surv. Ohio, 7, 1893, p. 665, pi. 55, figs. 17, 18. Orthodesma productifrons Miller, N. A. Geol. Pal., 2d App., 1897, p. 783 (gen. ref.). Eden (Economy): Covingtou, Kentucky. Holotype.Ctit. No. 46166, U.S.N.M. I'.IIlLKK.KAi'illC LIST OF GENEKA AND SPECIES. 339 Cymatoiiota recta Ulrich. Cymatonota recta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 662, pi. 65, fige. 8, 9. Mayaville (McMillan): Cincinnati, Ohio, and vicinity. t. Nos. 46167, 46178, U.S.N.M. Cymatoiiota .semistriata TJhich. < Vmatonola s<>mistnata Ulrich, Gcol. Surv. Ohio, 7, 1893, p. 663, pi. 55, figs. 6, 7. < Mhodesma semistriatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 784 (gen. ref.). Richmond (Waynosvillc): Clurksville and Waynesville, Ohio. Holotype.C&t. No. 46169, U.S.N.M. Cymatonota typicalis Ulrich. ( ha'iiodomus typicalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 477, fig. 4 (not de- fined). < Ymatoiiota typicalis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 662, pi. 55, figs. 1-5. _ Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 998, pi. 45, figs. 1-lc. Richmond (Waynesville): Waynesville, etc., Ohio; southeastern Indiana. Cotype*.Ca,t. No. 46170, U.S.N.M. CYPHASPIS Burmeister. Genotype: Phacops ceratophthalma Goldfuss. Cyphaapie Burmeister, Org. Till., Ray Soc., 1846, p. 98. Hawleand Corda. Abh. d. k. bohmischen Gesell. d. \Viss., 5 (extract), 1847, p. 80, pi. 4, fig. 40. _ Barrande, Syst. Sil. du Centre Boheme, 1, 1852, p. 479. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 497. Nieszkowski, Archiv. f. Naturk. Liv.-Ehst-u. Kurl., 1, 1857, p. 562. Alth, Abhandl. der k.-k. Geol. Reichsanstalt, 7, Heft 1, 1874, p. 61. (Ehlert, Bull. Soc. d'Etudes Sci. d'Angers, 1885, p. 3. Zittel, Handb. Pal., 2, Munich, 1885, p. 624. Hall and Clarke, Pal. New York, 7, 1888, p. 47, 48, fig. Clarke, Jour. Morph., 2, 1888, p. 254. Whidborne, Mon! Dev. Fauna South England, 1, Pal. Soc. 1889, p. 17. Miller, N. A. Geol. Pal., 1889, p. 541. Koken, Die Leitfossilien, Leipzig, 1896, p. 24, fig. 15, fig. 5. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 317. Lindstroni, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 26. Grabau and Shinier, N. A. Index Fossils, 2, 1908, p. 302. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 721. Cyphaspis arkansauus Van lugen. Cyphaspis arkansanus Van Ingen, School of Mines Quart., 23, 1901, p. 35 (nom. mid.). Niagarau (St. Clair): St. Clair Spring, Independence County, Arkansas. < 'YPHASPIS BREVIMARGINATUS Walcott. See Haploconus brevimarginatus. Cyphaspis christyl Hall. Cyphaspis christyi Hall, Trans. Albany Inst., 4, 1864, p. 220; 28th Rep. New York St. Mus. Nat. Hist., doc. ed., 1877, pi. 32, figs. 5-7; Mus. ed., 1879, p. 188, pi. 32, figs. 5-7. White, 2d Ann. Rep. Dep. State Geol., Indiana, 1880, p. 498, pi. 3, fig. 9. Hall, llth Rep. Dep. Geol. Nat. Hist, Indiana, 1882, p. 333,' pi. 34, figs. 5-7. Miller, N. A. Geol. Pal., 1889, p. 541, fig. 990. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 174, figs. Niagaran (Waldron): AValdron, Indiana; Newsom, Tennessee. CYPHASPIS CLINTONENSIS Foerste. See Cyphaspis clintoni. Cyphaspis cllutoni Foerste. Proetus -- Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 92, pi. 8, fig. 5. Cyphaspis clintoni Foerste, Proc. Bost. Soc. Nat. Hist., 24, 1890, p. 272, pi. 6, fig. 22. 340 BULU.TJN n*, UXITED STATES NATIONAL MUSEUM. Cyphaspis clintoni Continued. C vphaspis clintouensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 524, pi. 27, fig. 5; pi. 31, fig. 22. Medinan (Brassfield) : Dayton, Ohio; Cumberland Gap, Tennessee. Cyphaspis(0 frobisheri Emerson. ('\phaspis? frobisheri Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., 1879, p. 583, fig. 11. Richmond (Utica?): Frobisher Bay, Baffin Land. Plastotype.Q&i. No. 60627, U.S.N.M. CYPHASPIS GALENENSIS Clarke. See Haploconus galenensis. Cyphaspis girardeauensis Shuniard. < 'yphaspis girardeauensis Shumard, 1st and 2d Ann. Rep. Geol. Surv. Missouri, pt. 2, 1855, p. 197, pi. B, fig. 11 a, b. Emmons, Man. Geol., 1860, p. 159, fig. 2. Keyes, Missouri Geol. Surv., 4, 1895, p. 228, pi. 32, fig. 2. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 58, pi. 2, fig. 13. Miller, N. A. Geol. Pal., 1889, p. 541, fig. 991. Calymene spinifera Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 277. Upper Medinan (Girardeau): Near Cape Girardeau, Missouri. HolotypeVtd. No. 57102, U.S.N.M. < 'YPIIA.SPIS HUDSONICA Ruedemann. See Proetus undulostriatus. Cyphaspis intermedia Weller. ('yphaspis intermedia Weller, Bull. Chicago Acad. Sci., 4, pt. 2, 1907, p. 231, pi. 20, figs. 3-5. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 121, pi. 7, fig. 26. Upper Medinan: Near Channahon, Will County (Cliannahon), and Thebes, Illi- nois; Edgewood, Missouri (Edgewood). Cyphaspis matutina Ruedemami. < yphaspis matutina Ruedernann, Bull. New York State Mus., 49, ](M)1, p. 02, pi. 4, figs. 5-7. Grabau and Shinier, N. A. Index Fossils, 2, 1910, j). 302. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Cyphaspis spinulocervix Van Ingen. Cyphaspis spinulocervix Van Ingen, School of Mines Quart., 23, 1901, p. 35, (norn. nud.). Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas Cyphaspis trentoneiisis Weller. Cyphaspis trentonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 107, pi. 15, figs. 8-10. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 302. Trenton: Jacksonburg, New Jersey. CYPHOCRINUS Miller. Genotype: C. gorbyi Miller. Cyphocrinus Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 304. (adv. sheets, 1892); N. A. Geol. Pal., 2d. App., 1897, p. 741. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 199. Weller, Bull. Chicago Acad. Sci., Nat. Hist, Surv., 4, pt. 1, p. 75, fig. 37 (includes discu sion of synonymy). Zittel, Grundzuge Pal. ; 1, 1910, p. 161. Springer, Zittel-Eastrnan Textb. Pal., 2d ed., 1913, p. 187. Hyptiocrinus Wadismuth and Springer, Amer. Geol., 10, 1892, p. 138; Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 200. Wachsmuth, Zittel-Eastm Textb. Pal, 1, 1900, p. 145. r.ii-.i [QGBAPHIC i [81 OF GENERA A.ND SPECI1 341 Cyphocrinus chicagoeiisis Wellcr. c yphocrinus chlcagoensis Wellcr, Bull. Chicago .Wad. Sci.. Xut, Hist. Kurv.. -I. pt. 1, 1900, p. 76, pi. 1, figs. 1-4. Niagaran (Racine): Bridgeport, Illinois. Cyphocrinus gorbyi Miller. < yphocrinus gorbyi Miller, N. A. C,col. Pal., 1st App., 1892, p. 676, figs. 1221-22; 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 305, pi. 7, figs. 14-16; adv. sheets, 1892, p. 53, pi. 7, figs. 14-10. Hyptiocrinus typus Wachsrnuth and Springer, Amer. Geol., 10, 1892, p. 138; Mem. Mus. Corap. Zool., Harvard, 20, 1897, p. 201, pi. 19, figs. 6 a-e. Xiagaran (Laurel): St. Paul, Shelby County, Indiana. CYPHOTRYPA Ulrich and Bassler. Genotype: Leptotrypa acervulosa Ulrich. Cyphotrypa Ulrich and Bailer, Smith*. Misr. Coll., 47, I'M)-!, pp. 24, 29. ('yphotrypa acervulosa (Ulrich). Leptotrypa acervulosa Ulrich, Geol. Minnesota, 3, 1893, p. 318, pi. 27, figs. 24, 25. < Vphotrypa acervulosa Ulrich and Bassler, Smiths. Misc. Coll., 47. 1904, p. 30, pi. 8, figs. 1-3. Trenton: Decorah, Iowa; Goodhue County, Minnesota (Prosser); Burgin und Frankfort, Kentucky; Ontario. I Molt, pc. Cat. No. 43189, U.S.N.M. Cyphotrypa bulbosa (Billings). Stenopora bulbosa Billings, Canadian Nat. Geol. ,2d ser., 2, 1805, p. 429; Catal. Sil. Fo&s. Anticosti, 1806, p. 32. Gamaehian (Ellis Bay): Gamaoho Bay, etc., Anticosti. Cyphotrypa corrugata (Wellcr). Monotrypa corrugata Well er, Geol. Surv. New Jersey, Pal., 3, 1903, p. 223, pi. 18, Jigs. 1-5. Cyphotrypa corrugata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 269, pi. 42, figs. 5-9; pi. 44, fig. 4; pi. 52, figs. 1, 2. Helderbergian: Near Tri States, New York (Decker Ferry); Cash Valley, etc., Maryland (Kc; riesioti/pcs.Ciit, No. 53651, U.S.N.M. Cyphotrypa frankfortcnsis Ulrich and Bassler. Cyphotrypa frankfortensis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. :!(), pi. 8, figs. 7-9. Trenton (Cynthiana): Frankfort and Burgin, Kentucky. Hohtype.Czt. No. 43188, U.S.N.M. (yphotrypa hiformis (Ulrich). Leptotrypa informis Ulrich, Geol. Minnesota, 3, 1893, p. 317, pi. 27, figs. 22, 23. Cyphotrypa informis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 30 (gen. ref.). Black River (Decorah): Minneapolis and St. Paul, Minnesota. Cyphotrypa semlpilaris (Ulrich). Leptotrypa semipilaris Ulrich, Geol. Surv. Illinois, 8, 1890, p. 457, pi. 36, figs. 5-5d. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 181. Simp- son, 14th Ann. Rep. State Geol. New York for ]894, 1897, p. 580, fig. 148 (not 149, 150=Leptotrypaacervulosa). Cyphotrypa semipilaris LTi r i c h and Bassler, Smiths. Misc. Coll., 47, 1904, p. 30 (gen. ref.). Maysville (Fairmount): Covington, Kentucky, and vicinity. Cotypcs.Cnt. No. 43395, U.S.N.M. I'.rLLKlIN !, L'^ITKD STATKrf NATIONAL fyphotrypa stldharul (Ulrieh). Leptofeypa Btidhami Ulrich, Geol. Surv. Illinois, 8, 1890, p. 456, pl.36, figs.4-4b. Monticulipora stidhami J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 76. ryphotrypa stidhami Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 30 (gen. r&f.). Richmond (Whitewater): Brown County, and near Eaton, Ohio. Oat, No. 43394, U.S.N.M. Cyphotrypa wilmingtonensis Ulrich and Bassler. Cyphotrypa \vilmingtonensisUlrichand Bassler, Smiths. Misc. ('oil., Quart., 17. 1904, p. 31, pi. 8, figs. 4-6. 'I Uchmond (Fern vale): Wilmington, Illinois. Holotype.C&t. No. 43192, U.S.N.M. CYPRICARDIA ALATA Hall. See Modiolopsis primigenia. CYPRICARDIA AMERICANA Emmons. See Goniophora carinata. CYPRICARDIA? ANGUSTA Hall. See Ctenodonta machseriformis. CYPRICARDIA MODIOLARIS Owen. See Modiolopsis modiolaris. CYPRICARDIA OBSOLETA Hall. See Modiolopsis subalatus. CYPRICARDIA ORTHONOTA Hall. See Modiolopsis orthonota. CYPRICARDIA SUBTRUNCATA Emmons. See Whitella subtruncata. CYPRICARDINIA Hall. Genotype: C. lamellosa Hall. Cypricardinia Hall, Pal. New York, 3, 1859, p. 266; Prelim. Notice Lam., pt, 2, 1870, p. 81; 23d Rep. New York State Cab. Nat. Hist., 1873, pi. 14, figs. 3-6. Barrande, Syst. Sil. Centre Boheme, 1881, p. 14, 112. Ziitel, Handb. Pal., 2, 1881, p. 108^ Hall, Pal. New York, 5, pt, 1, Lam., 2, 1885, p. xlvi. Herrick, Bull. Sci. Lab. Benison Univ., 2, pt, 1, 1889, p. 35. Miller, X. A. Geol. Pal., 1889, p. 475. Nettelroth, Kentucky Foss. Shells, Geol Surv. Kentucky, 1889, p. 204. Whidbome, Mon. Dev. Fauna South England, 2, Pal. Soc., 1892, p. 5. Koken, Die Leitfossilien, Leipzig, 1896, p. 524. Hind, Mon. Brit. Carb. Lamellibranchiata, 1, Pal. Soc., 1897, p. 129. Grabau, Bull. Buffalo Soc. Nat. Hist., 6, 1889, p. 268. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 535. Cypricardinia arata Hall. Cypricardinia arata Hall, 20th Rep. New York State Cab. Hist., 1868, p. 337, pi. 14 (5), fig. 6; rev. ed., 1870, p. 385, pi. 14, fig. 6; 28th Rep. New York State Mus. Nat. Hist,, mus. ed., 1879, p. 174; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 317, pi. 27, fig. 23. Grabau and Shimer, N. A. Index Foasils, 1, 1909, p. 535. Niagaran: Racine, Wisconsin, and Bridgeport, Illinois (Racine); Waldron, Indi- ana; Tennessee (Waldron). Cypricardiuia canadensis Grabau. Cypricardinia canadensis Grabau, Geol. Surv. Michigan, Geol. Ser., 1, 1909, p. 170, pi. 23, figs. 14, 15. Upper Monroan ( Amherstburg) : Bed of Detroit River, opposite Amherstburg, Ontario. CYPRICARDINIA IXFLATA Lesley. See Oypricardites inflatus. BIBLIOGRAPHIC LIST OJL Gi)Kii)lLV AND tiFJ5OIE6. 348 Cyprlcardiuia lamollosa Hall. Cypricardinia laiuellosa Hall, Pal. New York, 3, 1859, p. 266, pi. 49a, figs. la-r. (ypricardiniacf. laraellosa Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 463, pi. 78, figs. 6, 7. Helderbergian: Albany County, New York (New Scotland); Keyset, West, Vir- ginia (Keyser). Cypricardinia subovata Miller and Dyer. Cypricardinia su bovata Miller and Dyer, Cont. toPal., 2, 1878, p. 10. pi. r. figs. 8, 8a. Niagaran (Waldron): Waldron, Indiana. Cypricardinia subquadrata Savage. ( 'ypricardinia subquadrata Savage, Bull. Geol. Surv. Illinois, 23, 1913. p. 95, pi. 5, fig. 36. Upper Medinan (Edgewood-Noix): Near Louisiana, Missouri. Cypricardinia undulostrlata (Hall). Modiolopsis? undulostriata Hall, Pal. New York, 2, 1852, p. 284, pi. 59, figs. 6a, 1). Cyrtodonta undulostriata Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 410. Cypricardinia undulostriata Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 561, pi. 37, figs. 9a, b. Clinton (Rochester): Lockport, New York. Upper Medinan (Brassfield): Dayton, Ohio. Cypricardites Conrad. Genotype: C. curtus Conrad. Cypricardites Conrad, 5th Ann. Rep. New York Geol. Surv, 1841, p. 51. Not Cypricardites of most authors. Observation. See Geology of Minnesota, 2, 1897, p. 535, for remarks on this genus. CYPRICARDITES of authors. See Cyrtodonta Billings, Ortonella Ulrich, and Vanux- einia Billings. ACUTUMBONA Miller. See Vanuxemia acutumbona. CYPRICARDITES AFFINIS Miller. See Cyrtodonta afnnis. CYPRICARDITES AMPLUS Miller. See Cyrtodonta ampla. CYPRICARDITES AMYGDALINA Miller. See Ambonychia amygdalina. CYPRICARDITES ANQUSTA Miller. See Ctenodonta machaeriformis. CYPRICARDITES ANGUSTIFRONS Conrad. See Modiolopsis modiolaris. < YI-RICARDITES ANODONToiDES Emmons. See Modiolopsis sinuata. CYPRICARDITES ANTICOSTIEXSIS Miller. See Cyrtodonta? anticostiensis. CYPRICARDITES BILLINGSI Miller. See Cyrtodonta billingsi. ( 'YPRICARDITES BREVIUSCULA Miller. See Cyrtodonta breviuscula. ( 'YPRICARDITES CANADENSIS Miller. See Cyrtodonta canadensis. CYPRICARDITES? CARIXATA Meek. See Whitella carinata. CYPRICARDITES CASWELLI Foerste. See Cuneamya cafiwelli. OYPRICARDITES CINGULATA Ulrich. See Cyrtodonta cingulata. coRDiFORMis Miller. See Plethocardia? cordiformifl. 344 BULLETIN '.)'2, I'NJLl'ED STATES NATIONAL \M_'si i v i uicardites cur tus Conrad . Not recognized . Cypricardites curta Conrad, 5th Ann. Rep. New York Geol. Surv., 1841, p. 53. Salmon River: Near Rome, New York, and Richmond, Indiana. Observation. Foerste (Bull. Sci. Lab. Denison Univ., 17, 1914, p. 298) attempts to resurrect this form as a species of Ischyrodonta with the well-known I. unio- noides as a synonym. Conrad's definition is worthless, and the figures given by Hall (12th Rep. New York State Cab. Nat. Hist., 1859, p. 9) is a Aiew of the interior of some unknown Cyrtodonta. DESCRIPTUS Sardeson. See Cyrtodonta descriptus. CYPRICARDITES DIGXUS Sardeson. See Cyrtodouta digmis. tlCAKDiTES EMMA Millar. Sc Rhytimya emma. CYPHICARDITES PERRUGIXEUM Hall and Whitfiekl. See Cyrtodonfa? ferruginea. CYPRICARDITES FIXITIMUS Sardeson. See Cyrtodonta nnitimus. CYPRICARDITES (VANUXEMIA) FRAGOSA. See Vanuxemia fragosa. CYPRICARDITES GANTI Miller. See Modiolodon ganti. CYPRICARDITES GERMANUS Ulrich. See Cyrtodonta grandis germana. CYPRICARDITES GLABELLA Ulrich. See Cyrtodonta glabella. CYPRICARDITES GRANDIS Ulrich. See Cyrtodonta grandis. CYPRICARDITES IIAIXESI Miller and Faber. See Ortonella hainesi. CYPRICARDITES HALLI Nettelroth. See Cyrtodonta halli. CYPRICARDITES HARRIETTA Miller. See Cyrtodonta? harrietta. CYPRICARDITES HAYNIANUS Ulrich. See Vanuxemia hayniana. CYPRICARDITES HIXDI Miller. See Whitella hindi. CYPRICARDITES HURONENSIS Miller. See Cyrtodonta hm-onensis. Cypricardites inflatus (Enimons) . Not recognized . Nuculites inflata Emmons, Nat. Hist, Geol. New York, 2, 1842, p. 395, fig. 2. Cypricardites inflatus Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Cypricardinia inflata Lesley, Geol. Surv. Pennsylvania. Rep. P 4, 1889, p. 177. figs- Trenton: Watertown, New York. CYPRICARDITES IXSULARIS Miller. See Cyrtodonta? insularis. Cypricardites iowensis (Owen). Cardium Iowensis Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844, p. 84, pi. 17, fig. 8. Cypricardites ioweneis Miller, N. A. Geol. Pal. ? 1889, p. 477 (gen. ref.). Mohawkian: Iowa and Wisconsin. Observation. Side view of caet of some unrecognizable pelecypod. CYPRICARDITES ISLANDICUS Hall. See Cyrtodonta huronensis. CYPRICARDITES LATUS Miller. See Modiolopsis latus. CYPRICARDITES LEUCOTHEA Miller. See Cyrtodonta leucothea. BIBLIOGRAPHIC LIST 01 GENERA AND SPEC] .'M f> OYFBICABDITES LUCULENTVS Sardcson. See Cyrtodonta grand is luculenia. ;CARDITKS _M i-:r:AMno\rs \\ 'hit field. Sec Whitella megambona. ('Ys-itrcAuniTKs \II\\KSOTKXSIS Sardeson. Sec Cyrtodonta glal>ellm. IOARDITKS MISENERI Miller. See Tscll )TO<1<>II I ;l misencvj. MODE8TU8 I'lrirh. Sec. Saffordia Tiiodcsl;). >i ( nuDLAius Kmnioiis. Sco Modiolu))Ms niixlioljiris. KANUS I'lricli. See Vanuzemia nana. ''ARDITES XASTTA (\)lira Or(ho i-;;i('A!:in i:s; OBSOLETT s [,cslcy. See Modiolopsls sul)alatn.-. .:ii'AiMm-:s OHTUSIFHONS Vlricli. See Vanuxeuiiu obf usii'rons. ('MMtrrARrnTKs OUTUSUS Miller. See Cyrtodonta obtusa. RICARDITES ovAi.is Miller. See Tschyrodonta ovulis. CYPHICARDITES OVATA Conrad. Sec Modiolopsis modiolaris. CYiMiicAHitn'F.s ovu-'OKMis (Tlrich. Sco Cyrtodonta oviformis. < '', i KK'Ai?DirKs FKK.siMn.rs Miller. See Cyrtodonta persimilis. OTPBICAKDITES PLEBKIA Miller. See A\Tiitella plebeia. CYPRTCARDITES PONDEROSA Sillier. See Cyrtodonta ponderosa. CYPRICARDITES QUADRANT, ULARIS Whitfield. See Whitella qnadruigularis. Oypricarditesf.' quadrilatera Hall. Cypricardites? quadrilatera Hall, 20th Rep. New York State Cab. Hist., 1868, p. 340, pi. 14 (5), figs. 8-10; rev. ed. 1868 (1870), p. 388, pi. 14, figs. 8-10. Niagaran (Racine): Bridgeport, Illinois. CYPRICARDITES RECTIROSTRIS Whitfield. See Vanuxemia rectirostris. .acARDiTEs ROTUNDATA Hall and \\Tiitfield. See Vanuxemia rotund at a. CYPRICARDITKS ROTUNDATUS (part) Whitfield. See Vanuxemia puberecta. :ICARDITES RUGOsus Miller. See Cyrtodonta rugoea. Cvi'iticARDiTES sAFFORDi Hall. See Cyrtodonta saffordi. CVI-RICARDITES SARDESONi Ulrioh. See Vanuxemia sardesoni. CYPRICARDITES SIRMOIDEA Miller. See Whitella? sigmoidea. CYPRICARDITES SINUATA Emmons. See Modiolopais sinuata. CYPRICARDITES SPINIFERA Miller. See Cyrtodonta spinifers. CYPRICARDITES STERLINQENSIS Miller. See Whitella sterlingensis. < 'YI I;IC:ARDITES SUBAXGULATUS Miller. See Cyrtodonta subangulat a. 34C BULLETIN 02, UNITED STATES NATIONAL MUSEUM. OYPRIGARDITES s tree ARIN ATA Miller See Cyrtodonta subcarinato. CYPRICARDITES SUBOVATUS Miller. See Cyrtodonta huronensis. ( '\TRICARDITES susspATULATA Miller. See Prolobella subspatulata. ( 'YPRICARDITES SULCODORSATUS Miller. See Saffordia sulcodorsata. rypRicARDiTES TENELLus Ulrich. See Cyrtodonta tenella. OYPRICARDITES TERMINALIS Ulrich. See Vanuxemia terminal!*. < 'YPRICARDITES TRIANGULARIS Sardeson. See Vanuxemia haynianu. < 'YPKTCARDITES UNGULATA Miller. See Vanuxemia ungulata. C YPRICARDITES VENTRALIS Miller. See Saffordia ventralis. CYPRICARDITES VENTRICOSA Miller. See Whitella ventricosa. CYPRICARDITES VENTRICOSUS Whitfield. See Cyrtodonta billingsi. CYPRICARDITES VETUSTA Miller. See Cuneamya vetusta. CYPRICARDITES VICINUS Sardeson. See Vanuxemia obtusifrons. CYPRICARDITES WINCHELLI Miller. See Modiolodon winchelli. CYPRICARDITES WORTHENI Ulrich. See Vanuxemia wortheni. CYPEIDINA Milne-Edwards. Cypridina Milne-Edwards in Lamarck's Anim. sans Vert. , 5, 1838, p. 178. Miller, N. A. Geol. Pal., 1st, App., 1892, p. 706. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 741. Cypridina antiqua Jones. Cypridina antiqua Jones. Geol. Mag., dec. 5, 1, 1904, p. 438, fig. 1. Trenton?: Wenoma, Lake Ontario, near Hamilton, Ontario. CYRTACTINOCERAS Hyatt. Genotype: Cyrtoceras rebelle Barrande. Cyrtactinoceras Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 528; ibid.,2d ed., 1913, p. 609. Ruedemann, Bull. New York State Mus., 90, 1906, p. 448. Cyrtactinoceras boycii (Whitfield). Cyrtoceras boycii Whitfield, Bull. Amer. Mus. Nat. Hist,, 1, 1886, p. 326, pi. 29, fig. 4. Brainerd and Seely, Bull. Amer. Mus. Nat, Hist., 3, 1890, p. 22. Cyrtactinoceras boycii Ruedemann, Bull. New York State Mus., 90, 1906, p. 489, pi. 35, figs. 1-4; figs. 45-47. Grabau and Shinier, N. A. Index Fossils] 2, 1910, p. 117, fig. 1352. Chazyan (Crown Point, Valcour): Isle La Motte, Vermont. Cyrtactinoceras chainplainense Ruedemann. Cyrtactinoceras chainplainense Ruedemann, Bull. New York State Mus., 90, 1906, p. 491, pi. 34, fig. 3; pi. 36, figs. 1, 2, figs. 48-50. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 117. Chazyan (Valcour): Near Chazy, and Saranac River at Plattsburg, New York. CYBTENDOCERAS Remele. Cyrtendoceras (Remele) Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 515; 2ded., 1913, p. 596. LIST Oi (.'UJS'ISBA AND SJPiSC'lEtt. ,'i47 Cjrtendoeeraa(f) priscum Ruedemann. Oyrtendoceraa(?) priscuni Ruedemmnn, Bull. New "York 8tuto Miw., Jw, i!Mr>, p. 430, pi. 2, figs. 2-5. Canadian (Beekmantown): Beekmantown, New York. ( YRTHIA D'Orbiguy. See Cyrtia Dalmau. CYRTIA Dalman. Genotype: Anomites exporrectus Wahlenberg. Cyrtia Dalman, Kongl. Svenska Vet.-Akad. Handl. for 1827, 1828, pp. 93, 97. Davidson, British FOBS. Brach. Pal. Soc., 1853, p. 83; 1859, p. 66. Billings, Canadian Jour., 6, 1861, p. 262. Zittel, Handb. Pal., 1, 1880, p. 683. Nettel- roth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 93. Miller, N. A. Geol. Pal., 1889, p. 342. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 40; 13th Ann. Rep. New York State Geol., 1895, p. 759. Koken, Die Leitfossilien, Leipzig, 1896, p. 243, fig. 204, 3. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 336; 2cl ed., 1913, p. 412. Cyrthia D'Orbigny, Prodr. Pal., 1, 1849, p. 41. Cyrtia cliftouensis Foerste. Cyrtia cliftonensis Foerste, Jour. Geol., 11, 1903, p. 709; Bull. Sci. Lab. Denison Univ., 14, 1909, p. 91, pi. 2, fig. 32. Niagarau (Brownsport): Near Clifton, Tennessee. CYRTIA EXPORRECTA Hall and Whitfield, 1875. See Cyrtia exporrecta myrtia. Cyrtia exporrecta (Wahlenberg). Anomites exporrectus Wahlenberg, Nova Acta Regias Soc. Scient. Upsal, 8, 1821, p. 64. Spirifera (Cyrtia) trapezoidalis Hall and Whitfield, 24th Rep. New York Stale Cab. Nat. Hist., 1872, p. 183. Cyrtia trapezoidalis Hall and Whitfield, 27th Rep. ibid., 1875, pi. 9, figs. 19-21. Cyrtia exporrecta Dalman, Kongl. Vet.-Akad. Handl. for 3827, 3828, p. 118. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 93, pi. 27, figs. 6-8, 20. Miller, N. A. Geol. Pal., p. 342, 1889, fig. 557. Hall and Clarke, Pal. New York, 8", pt. 2, 1893, p. 42, pi. 28, figs. 1, 48, 49, 51. Silurian: Europe; Louisville, Kentucky (Louisville); Osgood, Indiana (Osgood). , No. 51326, U.S.N.M. ;.: TiA EXPORRECTA var. .ARRECTA Nettelroth. See Cyrtia exporrecta myrtia. yrtia exporrecta myrtia (Billings). Cyrtia myrtia Billings, Pal. Fossils, 1, 1862, p. 165, fig. 149. Hall and Clarke Pal. New York, 8, pt. 2, 1893, p. 42. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 443, pi. 9, figs. 10, 12. Cyrtia trapezoidalis var arrecta Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 183. Cyrtia exporrecta Hall and Whitfield, 27th Rep. ibid., 1875, pi. 9, figs. 22, 23. Cyrtia exporrecta var. arrecta Nettelroth, Kentucky Fossil Shells, Mem. Ken- tucky Geol. Surv., 1889, p. 94, pi. 27, fig. 21; pi. 34, fig. 35; pi. 37, figs. 60, 61. Hall, and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 28, figs. 2, 3; pi. 39, fig. 32. Anticostian (Chicotte): Southwest Point, Anticosti. Niagaran: Louisville, Kentucky (Louisville); Indiana and Tennessee (Osgood andWaldron); Wisconsin (Racine). Plesiotype.C&t. No. 51 327, U.S.N.M. (Nettelroth types of C. exporrecta-arrecta). 'v)S Ul'LLKTlX !;!, fNITED STATES NATIONAL MUSEUM. Cyrtia meta (Hall). Spirifer racliatus (part) Hall, Pal. New York, 2, 1852, p. 66, pi. 22, figs. 2a-2c, 2t, Sphifera meta Hall, 20th Rep. New York State Cab. Nat, Hist., 1867, p. 372, pi. J3, figs. 12, 13. < Vrtia radians Hall and Clarke, Pal. New York, 8, pt. 2, 1893, pp. 42, 362, pi. 28, figs. 4, 5, 50, 52; pi. 39, fig. 33. Xiagaran: Rochester, New York (Clinton); Milwaukee, Wisconsin (Racine). CYRTIA MYRTIA Billings. See Cyrtia exporrecta myrtia. ( 'YRTIA RADIANS Hall and Clarke. See Cyrtia meta. CYRTIA TRAPEZOIDALIS var. ARRECTA Hall and Whit field. See Cyrtia exporiv-m myrtia. CYRTIDOCRJM-S Angelin. See Lecanocri mis Hall. CYRTINA Davidson. Genotype: Cyrtia heteroclita Defrance. Cyrtina Davidson, Mon. British Carb. Brach. Pal. Soc., 1859, p. 66. Hall, Pal. New York, 4, 1867, p. 263; 20th Rep. New York State Cab. Nat, Hist., 1867, p. 251. Zittel, Handb. d. Pal., 1, 1880, p. 683. Davidson, Mon. British Foss. Brach., 5, Sil. Suppl., Pal. Soc., 1882, p. 80. Herrick, Bull. Sci. Lab. Denison Univ., 4, 1888, p. 14. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 95. Miller, N. A. Geol. Pal., 1889, p. 342. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 43; 13th Ann. Rep. New York State Geol., 1895, p. 763. Koken, Die Lcitfossilien, Leipzig, 1896, p. 243, figs. 204, 6. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 219. Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 335, 2d ed., 1913, p. 412. Grabau, Bull. New York State Mus., 45, 1901, p. 197; Bull. Buffalo Soc. Nat. Sri., 7, 1901, p. 197. Cyrtina magnaplicata Weller. Cyrtina magnaplicata Weller, Geol. Surv. Xew Jersey Pal., 3, 1903, p. 238, pi. 21, figs. 46-49. Helderbergian (Decker Ferry): Two miles south of Tristates, Xew York. Cyrtina pyramidalis (Hall). Spirifer pyramidalis Hall, Pal. New York, 2, 1852, p. 266, pi. 54, fig. 7. Cyrtina pyramidalis Miller, N. A. Geol. Pal., 1889, p. 343. Grabau, Bull. New York State Mus., 45, 1901, p. 197, fig. 115; Bull. Buffalo Soc. Nat, Sci., 7, 1901, p. 197, fig. 115. Clinton (Rochester): Lewiston, New York. CTRTOCERAS Goldfuss. Genotype: C. depressum Goldfuss. Cyrtoceras Goldfuss, in De la Beche's Handbuch der Geognosie, 1832, p. 536. Portlock, Rep. Geol. Londonderry, 1843, p. 411. McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 11. D'Orbigny, Prodr. de Pal., 1, 1849, p. 1. Wood- ward, Man. Mollusca, pt. 1, 1851, p. 91. Saemann, Palseontograpbica, 3, 1852. pp. 156, 161. McCoy, Brit, Pal. Rocks Foss., 1854, p. 312. Pictet, Traito de Pal., 2d ed., 2, 1854, p. 652. Barrande, Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 158. Emmons,Amer. Geology, l,pt. 3, 1855, p. 147. Billings, Cana- dian Nat. Geol., 2, 1857, p. 136, pi. 2, fig. 3. Chapman, Canadian Join-., n. s., 2, 1857, p. 266; 8, 1863, p. 22. Salter, Geol. Surv. Canada, dec. 1, 1859, p. 31. Barrande, Syst. Sil. Centre Boheme, 2, pt. 1, 1867, p. 375. Miller, Cin- cinnati Quart. Jour. Sci., 2, 1875, p. 131. Hall, Pal. New York, 5, pt. 2, 1879, pp. 354, 368, 389. Blake, Mon. Brit. Foss. Cephalopoda, 1882, p. 54. Zittel, Handb. d. Pal., 2, 1884, p. 373. Foord, Cat. Foss. Ceph. Brit. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 349 CTRTOCERAS Continued. vol. 1, 1888, p. 262. Miller, N. A. Geol. Pal., 1889, p. 432. Wliidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1890, p. 102. Koken, Die Leitfossilien, Leipzig, 1896, p. 49, fig. 33. Clarke, Geol. Minnesota, 3, pt.2, 1897, p. 803. Grabau, Bull. New York State Mus., 45, 1901, p. 216; Lull. Buffalo Soc. Nat. Sci., 7, 1901, p. 21G. Hyatt, Zittel-Eastinan Textb. Pal., 1, 1900, p. 530. Foord, Mon. Carb. Ceph. Ireland, pt. 5, Pal. Soc., App., 1903, p. 212. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 94. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1026. Hyatt, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 611. Glyptodendron Claypole, Amer. Jour. Sci. Arts, 15, 1878, p. 302. (Genotype: G. eatonense Claypole). Foerste, Amer. Geol., 12, 1893, pp. 134-139. (ilyptoceras Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 537. (Genotype: G. Claypolo. V OCERA8? ABRUPTUM Hall. Sec < M'thorurus abrupt uni . C.vrtoceras? acinacelliiin Whitfield. ( 'yr toccras acinacellum Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 327, pi. 27, figs. .10-13. Rtiedemann, Bull. New York State Mus., 90, 1, p. 508. Canadian (Beekmantown) : Fort Cassia, Vermont. Cyrtoceras alethes Billings. Cyrtoceras Alethes Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 193, text fig. 177a-c. Ozarkiaii? (Levis erratic): Point Levis, Quebec. Cyrtoccras aiuoeiium Miller. Cyrtoceras amocnum Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 105, pi. 3, fig. 8. James, J. F., ibid., 8, 1886, p. 247. Cumings, 32d Ann. Rep. Dep. Geol. Nat, Res. Indiana, 1908, p. 1027, pi. 49, fig. 1. Richmond (AYhitewater) : Richmond, Indiana. CYRTOCERAS (PHRAGMOCERAS) AMPLICORNE Hall. See Halloceras hercules. CYRTOCERAS ANNULATUM Hall. See Spyroceras subannulatum. < VKTOCERAS ARCTIC AM ERATUM Hall. See Mselonoceras arcticameratuni. < 'YRTOCERAS ARCUATUM Hall. See Cyrtoceras subarcuatum. Cyrtoceras aristides Billings. Cyrtoeeras aristides Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 31(>. Canadian (Beekmantown): Phillipsburg, Quebec. Cyrtoceras baffinense Schuchert. Cyrtoceras baffinensis Schifchert, Proc. U. S. Nat. Mus., 22, 1900, p. 171. pi. I -I, figs. 11-13. Mohawkian: Head of Frobisher Bay, Baffin Land. Ih?otype.C*t. No. 28198, U.S.N.M. ('\rtoceras bcekmanense Whitfield. Cyrtoceras beekmanenaia Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 57, pi. 10, figs. 2, 3. Ruedemann, Bull. New York State Mus., 90, 1906, p. 506. Canadian (Beekmantown) : Beekmantown, New York. i i\r;si Suitor. See ZitteloceraS biflingtti au.l Z. liallianiini. 350 BULLETIN !)2, UNITED STATES NATIONAL MUSEUM. CYRTOCERAS BONDI Safford. See Plectoceras bondi. Cyrtoceras bovlnum Clarke and Ruedemann. Cyrtoceras boviuum Clarke and Ruedemann, Mem. New York State Mu*., 5, 1903, p. 90, pi. 16, figs. 8, 9; pi. 18. figs. 5, 6. Niagaran (Guelph) : Rochester, New York. BOYCII Whitfield. See Cyrtactinoceras boycii. < YUTOCERAS BREVICORNE Hall. See Cyclostomiceras brevicorne. Cyrtoceras camurum Hall. Cyrtoceras camurum Hall, Pal. New York, 1, 1847, p. 196, pi. 42, fig. 6. Emmoiis, Amer. Geology, 1, pt, 2, 1855, p. 148. Whitfield, Geol. Wisconsin, 4, 1882, p. 231, pi. 7, figs. 7, 8, 9. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 805, pi. 60, figs. 5, 6. Mohawkian: Middleville, New York (Trenton): Beloit, Wisconsin (Black River). CYRTOCERAS? CANCELLATUM Hall. See Cyrtoceras subcancellatum. Cyrtoceras capricornulus (Troost). Not recognized. Conilites capricornulus Troost, 5th Geol. Rep. Tennessee, 1840, p. 50. Cyrtoceras capricornulus Troost, 6th Geol. Rep. Tennessee, 1841, p. 178. Ordovician(?): Davidson County, Tennessee. Cyrtoceras carrollense Worthen. Cyrtoceras CarrollensisWorthen, Geol. Surv. Illinois, 6, 1875, p. 496, pi. 23, fig. 3. Trenton (Galena): Carroll County, Illinois. Cyrtoceras cinctutum Foerste. Cyrtoceras cinctutus Foerste, Bull. Sci. Lab. Deniaon Univ., 14, 1909, p. 61, pi. 3, figs. 37a-b. Niagaran (Osgood): Clifton, Tennessee. Cyrtoceras cllntonense Foerste. Cyrtoceras Clintonense Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 534, pi. 36, figs. 2a-e. Upper Medinan (Brassfield): Huffmans quarry, near Dayton, Ohio. Cyrtoceras clltus Billings. Cyrtoceras clitus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 85, fig. 24. Niagaran (Lockport): Grimsby, Ontario. Cyrtoceras confertissimum Whitfield. Cyrtoceras confertissimum Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 327, pi. 27, figs. 7-9. Ruedemann, Bull. New York State Mus., 90, 190G, p. 506, pi. 38, figs. 1-4. Canadian (Beekmantown): Fort Cassin, Vermont; Valcour, New York. Cyrtoceras conicum Owen. Not recognized. Cyrtoceras conicum Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844, p. 70, pi. 16, fig. 9. Mohawkian: Wisconsin. Cyrtoceras couoldale Wetherby. Cyrtoceras conoidale Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 78, pi. 2, figs. 6, 6a. Maysville: Maury County, Tennessee (Leipers); Boyle and Garrard Kentucky. BIBLKKJKAl'HIC LIST OF CKNBRA AND BPEO1KS. 351 Cyrtoceras constrictostrlatum Hall. Cyrtoceras consfrictostriatum Hall, Pal. New York, 1, 1847, p. 195, pi. 42, figs. 2a, b, 3c, d. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 147. Trenton: Mlddleville, New York. CYRTOCERAS CONSTKICTUM Billings. ^<'<> Oiu-ocrns roMMfricfum. Cyrtoceras cordatuni Parks. Cyrtoceras cordatum Parks in Tyrrell, 22d Hep. Ontario Bur. Mines, 191:5, ]. -\'2. Niagaran : Mouth of Nelson River, Manitoba. CYRTOCERAS CORNICULUM Hall. See Cyrtoceras teiiuistriatuin. Cyrtoceras cornulum Schuchert. Cyrtoceras cornulum Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 170, pi. II, figs. 8-10. Mohawkian: Head of Frobisher Bay, Baffin Laud. Cotype. Cat. No. 28121, U.S.N.M. Cyrtoceras corydon Billings. Cyrtoceras Corydon Billings, Cat. Sil. FOBS. Anticosti, Geol. Surv. Canada, 1866, p. 85, fig. 23. Niagaran (Lockport): (irimsby, Ontario. Cyrtoceras(?) cuneatum Whiteaves. Cyrtoceras(?) cuneatuui Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 282; Ottawa Nat., 20, p. 133, figs. Niagaran: Stonewall, Manitoba. Cyrtoceras? dactyloldes D wight. Cyrtoceras? dactyloides Dwight, Amer. Jour. Sci. Arts, 3d ser., 27, 1884, p. 255, pi. 7, tigs. 9, 9a. Canadian (Beekmantown): Rochdale, New York. CYRTOCERAS DARDANUM Hall. See Cyrtorizoceras dardanum. Cyrtoceras dictys Billings. Cyrtoceras Dictys Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 192, fig. 176. Canadian (Levis): Point Levis, Quebec. Cyrtoceras dresbachense Sardeson. Cyrtoceraa dresbachense Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, ' p. 102, pi. 6, fig. 4. Ozarkian (Oneota): Dresbach, Minnesota. Cyrtoceras dunleithense Miller and Gurley. Cyrtoceras dunleithense Miller and Gurley. Bull. Illinois State Mue. Nat. Hist., 11, 1896, p. 30, pi. 3, figs. 11, 12. Black River (Platteville) : Dunleith, Illinois. Cyrtoceras (Glyptoceras) eatonense (Claypole). Glyptodendron eatonenee Claypole, Amer. Jour. Sci. Arta (3), 15, 1878, p. 302; Geol. Mag., dec. 2, 5, 1878. Miller, N. A. Geol. Pal., 1889, p. 119, fig. 39. Cyrtoceras (Glyptoceras) eatonense Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 535, pi. on p. 536, figs, la-c, 2. Cyrtoceras (Glyptodendron) eatonense Foerste. Amer. Geol., 12, 1893, p. 139, pi. 7, figs. 1, 2. Upper Medinan (Brassfield): Near Eatou and nt-ar Dayton. Ohio, 352 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtoceras eugium Hall. Cyrtoceras eugium Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 40. Whitfield, Mem. Amer. Mus. Xat. Hist,, 1, pt. 2, 1895, p. GG, pi. 9, figs. 3, 4. Black River (Platteville): Beloit, Wisconsin. CYKTOCERAS EXIUUUM Billings. See Oncoceras exiguum. Cyrtoceras faberi J. F. James. Cyrtoceras faberi James. J. F.. .l".ir. Cincinnati Sor. Xat. Hist., S, 1880, p. 2-lfi, pi. 4, figs. 3a, b. Richmond: Waynesville, Ohio. CYRTOCERAS FALX Billings. See Maelonoccraa falx. Cyrtoceras feathers tonhaugbi Clarke. ( 'yrtoceras featherstonhaughi Clarke. Geol. Minnesota, 3, pt, 2, 1897, p. 807, pi. 58, figs. 12-15. Black River (Platteville): Cannon Foils. Minnesota. Cyrtoceras fllosum (Conrad). Cyrtoceras filosum (Conrad M. S.) Emmons, Xat. Hist, Xew York Geol.. 2, p. 392, fig. 4. Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 369, fig. 4 on p. 365. D'Orbigny, Prodr. de Pal., 1, 1849, p. 2. Lesley, Geol. SUIT. Pennsylvania, Rep. P 4, 1889, p. 181, fig. Cyrtolites filosum Hall, Pal. Xew York, 1, 1847, p. 190, pi. 41, figs. 3a, b. Emmons, Amer. Geology, 1. pt. 2, 1855, p. 167, pi. 12, fig. 4; Man. Geol., 1860, p. 98, fig. 87. Trenton: Watertown, New York. CYRTOCERAS FOSTERI Hall. See Cyrtorizoceras fosteri. CYRTOCERAS FRAGILE Billings. See Oncoceras fragile. ' VIITOCERAS FULTONENSIS Meek and Worthen. See Cyrtorizoceras dardanum. CYKTOCERAS GIGANTEUM McChesney. See Nautilus?? cancellatus. Cyrtoceras gracile Cleland. Cyrtoceras sp. Cleland, Amer. Pal., 3, Bull. 13, 1000, p. 19, pi. 17. figs. ">. ''. Cyrtoceras gracilis Cleland, Bull. Amer. Pal., 4, 1903, p. 13, pi. 3, fig. 11. Canadian (Tribes Hill): Fort Hunter, Tribes Hill, and Canajoharie, Xew York. CYRTOCERAS HALLEANUS D'Orbigny. See Zitelloceras halliamim. ( YUTOCEBAS HERCULES Hall. See Protophragmoceras hercules. CYRTOCERAS HERTZEEI Hall and ^Tiitfield. See Hexameroceras hertzeri. Cyrtoceras hitzi Foerste. Cyrtoceras hitzi Foerste, Bull. Sci. Lab. Denison Univ.. 16, 1910, p. 78, pi. 1, fig. 7a, b; pi. 2, figs. 23a-c. Richmond (^Tiitewater-Saluda) : Madison, Indiana. Cyrtoceras bought oni Clarke. C^Ttoceras houghtoni Clarke, Geol. Minnesota, 3, pt. 2, 1897. p. 807, pi. 59 12-15. Black River (Platteville): Cannon Falls, Minnesota. Cyrtoceras howardi Miller. Cyrtoceras howardi Miller, 18th Ann. Rep. Dep. Geol. Xat. Res. Indiana, 1894, p. 323, pi. 12, fig. 1; adv. sheets, 1892 ; p. 69, pi. 12, fig. 1 . Xiagaran (Laurel): St. Paul, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 353 CYRTOCEKAS HUKONKNSI-: 1'illin : H. See Oncoceras huronense. Cyrtoceras Iiidianense Miller. Cyrtoceras indianensis Miller, 17th Ann. Rep. Dep. Gcol. Nat. Rea. Indiana, 1892, p. 698, pi. 18, fig. 1, 2; adv. sheets, 1891, p. 88. Xiagaran (Laurel): St. Paul and Hartsville, Indiana. Cyrtoceras infumlibulum Whitfield. Cyrtoceras infundibulum Whitfield, Ann. Rep. for 1879, Geol. Surv. Wisconsin, 1880, p. 66; Geol. Wisconsin, 4, 1882, p. 300, pi. 20, figs. 4, 5. Niagaran (Racine): Racine, Wisconsin. Cyrtoceras Irregulare Wetherby. Cyrtoceras irregulare Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 79, pi. 2, fig. 3. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 246. Richmond (Waynesville) : Oregonia (Freeport) and Waynesville, Ohio; Versailles, Indiana. CYRTOCERAS ISODORUS Billings. See Cyrtorizoceras isodorus. Cyrtoceras juvenalis Billings. Cyrtoceras Juvenalis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 177; App., p. 420, fig. 400a, b. Trenton: Montreal, Quebec. CYRTOCERAS KIRBYI Whitfield. See Ooceras kirbyi. CYRTOCERAS LAMELLOSUM Hall. See Zitteloceras hallianum. Cyrtoceras laterale Hall. Cyrtoceras laterale Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 357, pi. 18 (9), figs. 4-6; rev. ed., 1870, p. 407, pi. 18, figs. 4-6, pi. 24, fig. 5. Niagaran (Racine and Guelph) : Racine, Wisconsin. Cyrtoceras laticurvatum Whiteaves. Cyrtoceras laticurvatum Whiteaves, Canadian Rec. Sci., 6, 1895, p. 395.; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 224, fig. 14. Black River or Richmond: Lake W 7 innipeg, Canada. Cyrtoceras ligarius Billings. ( yrtoceras Ligarius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 176. Richmond: Drummond Island, Lake Huron. Cyrtoceras loculosum Hall. Cyrtoceras loculosum Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 42. Whitfield, Mem. Amer. Mus. Nat Hist., 1, pt. 2, 1895, p. 67, pi. 9, figs. 6-9. Ozarkian (Oneota,): Madison, Wisconsin. Cyrtoceras lucillum Hall. Cyrtoceras lucillum Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), 1868, p. 349, pi. 18 (9), fig. 7; rev. ed., 1870, p. 406, pi. 18, fig. 7. Niagaran (Racine): Wauwatosa, Wisconsin. Cyrtoceras luthei Calvin. Cyrtoceras luthei Calvin, Amer. Geol., 10, 1892, p. 147; Bull. Lab. Nat. Hist. State Univ. Iowa, 2, 1892, p. 193. Ozarkian (Oneota) : Northeastern Iowa. jras lysander Billings. Cyrtoceras Lysander Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 161, fig. 146a-d (adv. sheets, 1862). Richmond: Cape Smyth, Manitoulin Island, Lake Huron. 84243 Bull. 9215 23 354 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtoceras macrostomuin Hall. Cyrtoceras marginalia Conrad (not Phillips, 1841), Proc. Acad. Nat. Sci. Phila- delphia, 1, 1843, p. 334. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 147, fig. 30. Cyrtoceras macrostomum Hall, Pal. New York, 1, 1847, p. 194, pi. 42, figs, la-c, 3a-b. Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 584. Black River: Mineral Point, Wisconsin (Platteville) ; Middleville, New York; Carlisle, Pennsylvania. Cyrtoceras magister Miller. Cyrtoceras obscura Miller (not Barrande), Cincinnati Quart. Jour. Sci., 2, 1875, p. 132, text fig. 17. Cyrtoceras magister Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 284. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 246. Miller, N. A. Geol. Pal., 1889, p. 434, fig. 729. Eden (Southgate): Cincinnati, Ohio. Cyrtoceras manltobense Whiteaves. Cyrtoceras Manitobense Whiteaves, Trans. Royal Soc. Canada, 7, sec. 4, 1890, p. 80, pi. 13, figs. 3-5; pi. 15, fig. 4; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 223. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 170. Oncoceras manitobense Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 799. Black River or Richmond: Lake Winnipeg, Manitoba; Baffin Land. CYRTOCERAS MARGIN ALIS Conrad. See Cyrtoceras macrostomum. Cyrtoceras markcei Castelnau. Not recognized. Cyrtoceras Markoei Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 30, pi. 9, fig. 3. Ordovician: Montmorency River, Canada. Cyrtoceras massiense Safford. Cyrtoceras Massiense Safford, Geol. Tennessee, 1869, p. 290, pi. 4 (G 3), fig. 4a, b. Trenton: Nashville, Tennessee. Cyrtoceras mecoyi Billings. Cyrtoceras McCoyi Billings, Canadian Nat. Geol., 4, 1859, p. 467. Chazyan: Mingan Islands, Quebec. CYRTOCERAS METELLUS Billings. See Mselonoceras metellus. Cyrtoceras microscopicum Dwight. Cyrtoceras microscopicum Dwight, Amer. Jour. Sci. Arts (3), 27, 1884, p. 256, pi. 7, fig. 11. Canadian (Beekmantown) : Rochdale, New York. CYRTOCERAS MINNEAPOLIS Clarke. See Cyrtorizoceras minneapolis. Cyrtoceras missisquoi Billings. Orthoceras Missisquoi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, " fig. 303. Cyrtoceras missisquoi Miller, N. A. Geol. Pal., 1889, p. 435 (gen. ref.). Canadian (Beekmantown): Phillipsburg, Quebec. Cyrtoceras multicameratum Hall. Cyrtoceras multicameratum Hall, Pal. New York, 1, 1847, p. 195, pi. 42, Emmons, Amer. Geology, 1, pt. 2, 1855, p. 147. Trenton: Middleville, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 355 CYKTOCKKAH .MVKK i<; Hall and Whitfield. See Kionoceras darwini. Cyrtoccras nashvillense Miller. ( ' yrl.oceras nashvillensis Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, p. 697, pi. 16, fig. 1 ; adv. sheets, 1891, p. 87. Xia-raran (Osgood or Laurel): West of Nashville, Tennessee. CYRTOCERAS NELEUS Hall. See Ma^lonoeeraH nel'-us. Cyrtoceras norwoodi ( 'larkr. Cyrtoceras norwoodi Clarke, Geol. Minnesota. :!, pt. 2, 1897, p. 809, pi. 60, figs. 7-9. Black River (Platteville) : Rockton, Illinois. ( ' v KT< x K if A s OBSCURA Miller. See Cyrtoceras niagister. ('YI;T<>CKI:AS OKCAS Hall. See Oncoceraa orcaa. Cyrtoceras orestes Billings. ryrioreras Orestes Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 177. Upper Medinan (Cataract): West Flamborotigh, Ontario. CYRTOCERAS ORODES Billings. See Cyclostomiceras erodes. CVRTOCEHAS PLANODORSATUM Whitfield. See Tripteroceras planodorsatuni. Cyrtoceras postumius Billings. Cyrtoceras Postumius Billings, Pal. Foss, 1, Geol. Surv. Canada, 1865, p. 178. Richmond: Cape Smyth, Manitoulin Island, Lake Huron. Cyrtoceras pusillum Hall. Cyrtoceras pusillum Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 357; rev. ed., 1870, p. 407. Niagarau (Racine): Racine, Wisconsin. Cyrtoceras quebecense Whiteaves. Cyrtoceras Quebecense Whiteaves, Ottawa Nat., 12, 1898, p. 120; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 315, pi. 35, figs. 1, la. Canadian (Levis limestone): Point Levis, Quebec. CYRTOCERAS RAEI Whitfield. See Ooceras? raei. Cyrtoceras rectum Whitfield.' Cyrtoceras rectum Whitfield, Ann. Rep. for 1877, 1878, p. 85; Geol. Wisconsin, 4, 1882, p. 319, pi. 24, figs. 6, 8. Niagaran (Guelph): Carl ton, Wisconsin. Cyrtoceras regulare Billings. Cyrtoceras regulare Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 314. Black River (Leray) : Pauquettes Rapids, Ottawa River, Canada. Cyrtoceras reversum Spencer. Not recognized. Cyrtoceras reversum Spencer, Bull. Missouri State Mus., 8, 1884, p. 60, pi. 7, fig. 8; Trans. Acad. Sci. St. Louis, 4, 1884, p. 610, pi. 7, fig. 8. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 96. Xiagaran (Lockport): Limehouse Station, Ontario. Observation. Cast of the living chamber probably of Poterioceras sauridens Clarke and Ruedemann, figured in a reversed position. 356 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtoceras rlgidum Hall. Cyrtoceras rigid urn Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 358, fig., pi. 16 (7), figs. 3-5; rev. ed., 1870, p. 408, pi. 16, figs. 3-5, text fig. 5. Niagaran (Racine): Bridgeport, Illinois. Cyrtoceras saffordi Miller. Cyrtoceras saffordi Miller, J7th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 698, pi. 17, figs. 2, 3; adv. sheets, 1891, p. 88. Trenton (Catheys): Nashville, Tennessee. Cyrtoceras scofieldi Clarke. Cyrtoceras scofieldi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 810. pi. 49, figs. 9 ! 1 . Black River (Platteville) : Janesville, Wisconsin. CYRTOCERAS SEPTORIS Hall and Whitfield. See Septameroceras septore. Cyrtoceras shumartti Clarke. Cyrtoceras shumardi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 810, pi. 60, figs. 1-4. Black River (Platteville): Cannon Falls, Minnesota. Cyrtoceras simplex Billings. Cyrtoceras simplex Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 313. Black River: "Lot N. concession A. Nepean," Canada. Cyrtoceras sinuatum Billings. Cyrtoceras sinuatum Billings, Geol. Surv. Rep. Progr. for 1853-56, 1857, p. 315. Whiteaves, Geol. Surv. Canada, Pal. FOBS., 3, pt. 4, 1906, p. 312, pi. 40, figs. 3, 3a. Black River (Leray): La Petite Chaudiere, Ottawa River, Canada. Cyrtoceras? stonense Safford. Cyrtoceras? stonense Safford, Geol. Tennessee, 1869, p. 290, pi. 4 (G. 3), figs. 2a-c. Stones River (Murfreesboroj : Murfreesboro, Tennessee. CYRTOCERAS SUBANNULATUS D'Orbigny. See Spyroceras subannulatum. Cyrtoceras sub ami a turn D'Orbigny. Cyrtoceras arcuatum Hall (not Steininger, 1830), Pal. New York, 1, 1847, p. 196, pi. 42, figs. 5a-c. Emmons, Amer. Geology, '1, pt. 2, 1855, p. 147. Cyrtoceras subarcuatum D'Orbigny, Prodr. de Pal., 1, 1849, p. 2. Trenton: Middleville, New York. Cyrtoceras subcancellatum Hall. Cyrtoceras? cancellatum Hall (preoccupied), Pal. New York, 2, 1852, p. 290, pi. 61, figs. 2a-. Cyrtoceras subcancellatum Hall, Miller's N. A. Geol. Pal., 1st ed., 1877, p. 243. Grabau, Bull. New York State Mus., 45, 1901, p. 216, fig. 148; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 216, fig. 148. Clinton (Rochester): Niagara Falls, etc., New York. Cyrtoceras (Glyptoceras) subcompressum Beecher. Cyrtoceras subcompressum Beecher, 5th Rep. State Geol. New York for 1885, 1886, pi. 14, figs. 2, 3; Pal. New York, 7, Sup., 1888, p. 35, pi. 129, figs. 2, 3.- Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 276, pi. 7, fig. 7. BIBLIOGRAPHIC LIST or GENERA AND SPECIES. 357 Cyrtoccras (Glyptoceras) subcompressum Continued. Cyrloceras (Glyptoceras) subcompressum Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 535, pi. 32, figs. 7a-d; fig. 3 of pi. on p. 536. Cyrtoceras (Glyptodendron) siibcompreasum Foerste, Amer. Geol., 12, 1893, p. 139, pi. 7, fig. 3. Upper Medinan (Brassfield): Near New Carlisle and near Springfield, Ohio. Cyrtoceras subrectum Hall. Cyrtoceras subrectum Hall, Pal. New York, 3, 1859, 1861, p. 342, pi. 69, figs. 3a-3d. Cayiigan (Manlius): Herldmer County, New York. Cyrtoceras subturbinatum Billings. Cyrtoceras subturbinatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 312. Chazyan (Mingan): Mingan Island, Quebec. Cyrtoceras surgens Barrande. Cyrtoceras surgens Barrande, Syst. Sil. Centre Boheme, 2, pt. 3, 1870, p. 728, pi. 431, figs. 16, 17. Canadian (Levis): Point Levis, Quebec. CYRTOCERAS SYPHAX Billings. See Eremoceras syphax. Cyrtoceras tenuiseptuin Faber. Cyrtoceras tenuiseptum Faber, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 18, pi. 1, figs. 3a, b, c. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1028, pi. 49, figs. 2, 2a. Richmond (Waynesville) : Near Waynesville, Ohio; Versailles, Indiana. 'Cyrtoceras tenuistrlatum Hall. Cyrtoceras corniculum Hall (preoccupied), Rep. Geol. Surv. Wisconsin, 1862, p. 41, figs. 1, 2. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 809, pi. 59, fig. 16. Cyrtoceras tenuistriatum Hall, in Miller's Amer. Pal. Foss., 1877, p. 243. Whit- field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, pi. 9, fig. 12. Black River: Mineral Point, Wisconsin (Platteville): Warsaw, Minnesota (De- corah). Cyrtoceras thompsonl Miller. Cyrtoceras thompsoni Miller, 18th Ann. Rep. Indiana, Dep. Geol., Nat. Res., 1894, p. 323, pi. 10, figs. 7, 8 (adv. sheets 1892). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1029, pi. 49, figs. 3, 3a. Richmond: Longwood, Fayette County, Indiana. Cyrtoceras trentoneuse (Emmona). Orthoceratites trentonensis Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 396 ? fig. 2. Cyrtoceras Trentonensis D'Orbigny, Prodr. de Pal., 1, 1849, p. 2 (gen. ref.). Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 381, fig. Oncoceras trentonense Lesley, Ibid., p. 494, fig. Trenton: New York. Cyrtoceras vallandighaini Miller. Cyrtoceras Vallandighami Miller, Cincinnati Quart., Jour. Sci., 1, 1874, p. 232, fig. 23. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 245. Miller, N. A. Geol. Pal., 1889, p. 435, fig. 730. Maysville: Cincinnati, Ohio, and vicinity (Fairmount) ; Nashville and Columbia, Tennessee (Leipers). 358 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtoceras vassarina Dwight. Cyrtoceras Yassarina Dwight, Amer. Jour. Sci. Arts, 3d ser., 27, 1884, p. 254, pi. 7, figs. 7, 7a, 8. Canadian (Beekmantown) : Rochdale, New York. Cyrtoceras ventricosum Miller. Cyrtoceras ventricosa Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 131, fig. 16. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 246. Miller, N. A. Geol. Pal., 1889, p. 435, fig. 731. Eden (Southgate): Cincinnati, Ohio. Cyrtoceras whitneyi Hall. Cyrtoceras whitneyi Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 39. Whit- field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 65, pi. 9, fig. 5. Richmond (Maquoketa): Maquoketa Creek, Iowa. Cyrtoceras(?) winonicuin Sardeson. Cyrtoceras(?) winonicum Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 102, pi. 6, figs. 2, 3. Ozarkian (Oneota) : Near Dresbach, Winona County, Minnesota. CTRTOCERINA Billings. Genotype: C. ty pica Billings. Cyrtocerina Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 178. Barrande, Syst. Sil. Centre Boheme, 2, pt. 1, 1867, p. 451. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 266. Miller, N. A. Geol. Pal., 1889, p. 436. Holm, Geol. Foren. Stockholm Forenhandl., 14, 1892, pp. 126, 209. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 774. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 517; 2d ed., 1913, p. 597. Cyrtocerina madlsonensis (Miller). Tryblidium madisonense Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 318, pi. 9, fig. 38 (adv. sheets, 1892). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 977, pi. 39, fig. 10. Cyrtocerina madisonensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 32. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 74. Richmond (Whitewater-Saluda) : Madison, Indiana. Cyrtocerina mercurlus Billings. Cyrtocerina Mercurius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 194, text fig. 179. Canadian (Le vis) : Point Levis, Quebec. Cyrtocerina(?) schoolcrafti Clarke. Cyrtocerina(?) schoolcrafti Clarke, Geol. Minnesota, 3, pt. 2 1897 p. 774, pi. figs. 12-14. Black River (Decorah): Near Cannon Falls, Minnesota. Holotype: Cat. No. 46526, U.S.N.M. Cyrtocerina typica Billings. Cyrtocerina typica Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 178, fig. 159. Miller, N. A. Geol. Pal., 1889, p. 436, fig. 732. Black River (Leray): Pauquette Rapids, Ottawa River, Canada. CTRTODONTA Billings. Genotype: C. rugosus and C. canadense Billi] Cyrtodonta Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 1' Canadian Nat. Geol., 3, 1858, p. 431; ibid., 4, 1859, p. 303; ibid., 6, 1861, 353; ibid., 7, 1862, p. 392. Meek and Worthen, Geol. Surv. Illinois, 3, p. 310. Zittel, Handb. Pal., 2, 1881, p. 50. Salter, Mem. Geol. Surv. Gi BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 359 CYRTODONTA Continued. Britain, 2cl ed., 1881, p. 546. Ulrica, Geol. Minnesota, Pal., 3, pt. 2, 1894, p. 534. Ball, Zittel-Eastman Textb. Pal., 1, 1900, p. 365. Koken, DieLeit- fossilien, Leipzig, 1896, p. 185, fig. 151, 2. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 980. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 409. Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 442. Palsearca Hall, Pal. New York, 3, 1859, p. 27. Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 341. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 310, footnote. Salter, Cat. Camb. Sil. Foss., 1873, p. 66. Angellum Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 105 (Genotype: A. cuneatum Miller). Cypricardites Vanuxem (not Conrad), Nat. Hist. New York, Geol. 3, 1842, p. 65, footnote. Hall, Pal. New York, 1, 1847, p. 157 footnote; 12th Rep. New York State Cab. Nat. Hist., 1859, pp. 9, 13; Pal. New York, 3, 1859, p. 270, footnote; p. 524; 15th Rep. New York State Cab. Nat. Hist., 1861, pp. 192, 193, pi. 11, fig. 4. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 309. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 134. Miller, Cincinnati, Quart. Jour. Sci., 1, 1874, p. 147. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 206. Miller, N. A. Geol. Pal., 1889, p. 476. Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, pp. 29-31. Observation. See Bodmania Miller for a probable synonym. CYRTODONTA (part) Safford. See Modiolodon Ulrich. CYKTODONTA ACUTUMBONA Billings. See Vanuxemia acutumbona. Cyrtodonta affinis Ulrich. Cyrtodonta affinis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 540, pi. 39, figs. 20-23. Cypricardites affinis Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.). Black River (Decorah): Six miles south of Cannon Falls, Minnesota. IMotype.Cs,t. No. 46171, U.S.N.M. Cyrtodonta afflnis flllmorensis Ulrich. Cyrtodonta affinis var. fillmorensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 540, pi. 39, fig. 23. Trenton (Prosser): Near Wykoff, Fillmore County, Minnesota. Holotype.Csit. No. 46172, U.S.N.M. Cyrtodonta? alata (Hall). Posidonia? alata Hall, Geol. Rep. 4th Disk New York, 1843, p. 72, fig. 7; Pal. New York, 2, 1852, p. 87, pi. 27, fig. 4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 737, fig. Posidonomya alata Miller, N. A. Geol Pal., 1889, p. 504 (gen. ref.). Clinton: Rochester, New York. Cyrtodonta ampla Ulrich. Cyrtodonta ampla Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 538, pi. 39, fig. 34. Cypricardites amplus Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.). Black River (Platteville): Cannon Falls, Minnesota. Holotype.C&t. No. 46173, U.S.N.M. Cyrtodonta? anticostiensis Billings. Cyrtodonta? Anticostiensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 14. Cypricardites anticostiensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Richmond (English Head and Charleton): English Head, Anticosti. 360 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtodonta billings! Ulrich. Cypricardites ventricosus Whitfield (not Hall), Geol. Winconsin, 4, 1882, p. 209, pi. 5, fig. 9. Cyrtondonta billingsi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 538, pi. 40, figs. 2-6. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 166, pi. 11, fig. 7. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 409, figs. 528d, e. Black River: Dunleith, Illinois; Beloit, Mineral Point, etc., Wisconsin; Cannon Falls, etc., Minnesota (Platteville); Lincoln County, Missouri (Decorah); New Jersey (Jacksonburg). Cotypes. Cat. Nos. 46174, 46175, U.S.N.M. Cyrtodonta breviuscula Billings. Cyrtodonta breviuscula Billings, Canadian Nat. Geol., 4, 1859, p. 446. Whiteaves, Ottawa, Nat., 22, 1908, p. 107, pi. 3, fig. 3. Cypricardites breviuscula Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Stones River (Pamelia): Near Ottawa, Ontario. Cyrtodonta canadensis Billings. Cyrtodonta Canadensis Billings, Canadian Nat. Geol., 3, 1858, p. 434, figs. 8-11; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 182, figs. 8-10; p. 183, fig. 11; Geol. Canada, Geol. Surv. Canada, 1863, p. 148, fig. 106. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 241. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 167, pi. 11, fig. 3. Cypricardites canadensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Black River: St. Josephs Island, La Petite Chaudiere Rapids, Pauquettes Rapids, and Lake Winnipeg, Canada; New Jersey. CYRTODONTA CANADENSIS Grabau and Shimer. See Megalomus canadensis. Cyrtodonta cingulata (Ulrich). Cypricardites cingulata Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Min- nesota, 1892, p. 235, fig. 21. Cyrtodonta cingulata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 545, pi. 40, figs. 7, 8. Black River (Decorah): Minneapolis, Minnesota. Holotype.C&t. No. 46176, U.S.N.M. Cyrtodonta clochensis Foerste. Cyrtodonta clochensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 297, pi. 2, figs. 6a-b. Black River (Lowville): La Cloche Peninsula, Ontario. CYRTODONTA CORDIFORMIS Billings. See Plethocardia? cordiformis. Cyrtodonta cuneata (Miller). Angellum cuneatum Miller, Jour. Cincinnati Soc. Nat. Hist., ], 1878, p. 106, pi. 3, fig. 11; N. A. Geol. Pal., 1889, p. 462, fig. 774. Cyrtodonta cuneata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 999, pi. 45, fig. 2. Richmond (Whitewater): Richmond, Indiana. Cyrtodonta descriptus (Sardeson). Cypricardites descriptus Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 70, pi. 2, fig. 2. St. Peter: Highland Park, Minnesota. Cyrtodonta dignus (Sardeson). Cypricardites dignus Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 71, pi. 2, figs. 4, 5. St. Peter: South St. Paul, Minnesota. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 361 CYRTODONTA EMMA Billings. See Rhytimya emma. Cyrtodonta? ferruginea (Hall and Whitfield). Cypricardites ferrugineum Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. H6, pi. 5, fig. 11. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 93. Avicula whitfieldi, Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 558, pi. 37, fig. 5. Upper Medinan (Brassfield): Near Wilmington, Ohio. Plastotype.Cat. No. 46544, U.S.N.M. Cyrtodonta flnitima (Sardeson). Cypricardites finitimus Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 70, pi. 2, fig. 6. St. Peter: Highland Park, Minnesota. CYRTODONTA GANTII Safford. See Modiolodon ganti. Cyrtodonta gibbera Ulrich. Cyrtodonta. gibbera Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 542, pi. 39, figs. 13-15. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 162, pi. 13, figs. 34, 36. Trenton: Thirteen miles south of Cannon Falls, Minnesota (Prosser); Baffin Land. Holotype. Cat. No. 46177, U.S.N.M. Cyrtodouta glabella (Ulrich). Cypricardites glabella Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Minne- sota (March), 1892, p. 234, fig. 20. Cyrtodonta glabella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 543, pi. 39, figs. 37, 40. Cypricardites minnesotensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 3 (April), 1892, p. 338, pi. 6, fig. 21. Black River: Minneapolis, Minnesota (Platteville and Decorah); Beloit, Wis- consin, and Dunleith, Illinois (Platteville). Holotype and plesiotype Cat. Nos. 46178-46180, U.S.N.M. Cyrtodonta grandis (Ulrich). Cypricardites grandis Ulrich, Amer. Geol., 6, 1890, p. 387, figs. 19a-c. Cyrtodonta grandis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 547, pi. 40, fig. 11, fig. 43a-i. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 409, fig. 529. Trenton: Between Burgin and Danville, Kentucky; Cannon Falls, Kenyon, etc., Minnesota; Decorah, Iowa; Oshkosh, Wisconsin. Cotypes and plesiotypes.Czt. Nos. 46182, 46859, U.S.N.M. Cyrtodonta grandis germana (Ulrich). Cypricardites germanus Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Minnesota, 1892, p. 236, fig. 22. Cyrtodonta grandis var. germana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549, pi. 40, figs. 9, 10, 12, fig. 43j. Trenton: Between Burgin and Danville, Kentucky; Cannon Falls, etc., Minne- sota; Iowa; Wisconsin. Holotype and plesiotype. Cat. Nos. 46181, 46862, U.S.N.M. Cyrtodonta grandis intermedia Ulrich. Cyrtodonta grandis var. intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549, fig. 43k. Trenton (Catheys): Haynie's Mill, central Tennessee. Cotype. Cat. No. 46183, U.S.N.M. 362 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtodonta grandls luculenta (Sardeson). Cypricardites luculentus Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 338, pi. 6, figs. 25, 26. Cyrtodonta grandis var. luculenta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549, pi. 40, figs. 13, 14. Richmond (Maquoketa): Granger, Bristol, etc., Minnesota. Cyrtodonta halli (Nettelroth). Cypricardites halli Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 206, pi. 34, figs. 1-6. Cyrtodonta halli Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 541 (gen. ref.). Richmond: Oldham County, Kentucky. CotypesCzt. No. 51342, U.S.N.M. Cyrtodonta? harrietta Billings. Cyrtodonta harrietta Billings, Pal. Foss., Geol. Surv. Canada, 1865, p. 149, fig. 129 (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 13 (loc. ref.). Cypricardites harrietta Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Richmond (English Head and Charleton): English Head, Anticosti. CYRTODONTA HAYNIANA Safford. See Vanuxemia hayniana. CYRTODONTA HINDI Billings. See Whitella hindi. Cyrtodonta huronensis Billings. Cyrtodonta huronensis Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 180, figs. 3, 4; Canadian Nat. Geol., 3, 1858, p. 432, figs. 3, 4; Geol. Canada, Geol. Surv. Canada, 1863, p. 147, figs. 102 a, b. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, figs. 1-3. Palsearca ventricosa Hall (not Hall, 1847), Pal. New York, 3, 1859, pp. 270, 271, figs. 1-3; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 10, figs. 1-3. Cypricardites huronensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Cypricardites islandicus Hall in Miller, N. A. Geol. Pal., 1st ed., 1877, p. 189. Cyrtodonta subovata Ulrich, Geol. Minnesota, 3, 1894, p. 536, pi. 39, figs. 28, 29, 31-33?, 30, ?45. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 410, fig. 528a-c. Cypricardites subovatus Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.). Black River: Near Point Palladeau and St. Joseph Island, Lake Huron; Point Claire, island of Montreal, Canada; High Bridge, Kentucky; Tennessee and Virginia (Lowville); St. Paul and Cannon Falls, Minnesota (Decorah). Pksiotypes.Cat. Nos. 46192, 46849, etc., U.S.N.M. (cotypes of C. subovata). CYRTODONTA HURONENSIS var. SUBCARINATA Chapman. See Cyrtodonta subcarinata. Cyrtodonta? insularis Billings. Cyrtodonta? insularis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 14. Cypricardites insularis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). Richmond (English Head): West End, Anticosti. Cyrtodonta janesvillensis Ulrich. Cyrtodonta janesvillensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 537, pi. 39, figs. 26, 27. Black River (Platteville): Janesville and Beloit, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 363 Cyrtodonta? lamellosa Hudson. Cyrtodonta? lamellosa Hudson-, Bull. New York State Mus., 80, 1905, p. 287, pi. 4, figs. 10-13. Chazyan (Valcour): Valcour Island, Lake Champlain. Cyrtodonta leucothea Billings. Cyrtodonta Leucothea Billings, Pal. Foss., 1, Geol. Surv. Canada, 1805, p. 46, fig. 49 (adv. sheets, 1862); Geol. Canada, Geol. Surv. Canada, 18G3, p. 143, fig. 82. Cypricardites leucothea Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Black River (Leray): Pauquette Rapids, Ottawa River, Canada. Cyrtodonta normanensis Safford. Cyrtodonta Normanensis Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.). Mohawkian: Tennessee. Cyrtodonta obesa Ulrich. Cyrtodonta obesa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 542, pi. 39, figs. 10, 11, 12. Black River: Mercer County, Kentucky; St. Paul and Preston, Minnesota (Decorah). Cotypes.C&t. Nos. 46184, 46185, U.S.N.M. Cyrtodonta obliqua (Meek and Worthen). Cypricardites obliquus Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 311, pi. 2, fig. 9a, b. Cyrtodonta obliquus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 540, p. 39, figs. 35, 36. Trenton: Scales Mound, Illinois (Galena); Fillmore County, Minnesota (Prosser). Cyrtodonta obtusa (Hall). Ambonychia obtusa Hall, Pal. New York, 1, 1847, p. 167, pi. 36, figs. 8a-b. Cyrtodonta obtusa Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 184, figs. 13, 14; Canadian Nat. Geol., 3, 1858, p. 436, figs. 13, 14; Geol. Canada, Geol. Surv. Canada, 1863, p. 147, fig. lOla, b. Posidonomya obtusa Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177. Palsearca obtusa Hall, 12tii Rep. New York State Cab. Nat. Hist., 1859, p. 65 (gen. ref.). Cypricardites obtusus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Trenton: Watertown, New York; Canada. Cyrtodonta oviformis (Ulrich). Cypricardites oviformis Ulrich, Amer. Geol., 10, 1892, p. 99, pi. 7, figs. 3, 4. Cyrtodonta oviformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, fig. 46; pi. 40, fig. 1. Black River (Platteville): Janesville, Wisconsin. HolotypeC&t. No. 46186, U.S.N.M. Cyrtodonta parva Ulrich. Cyrtodonta parva Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 541, pi. 39, figs. 24, 25. Trenton (Prosser): Near Fountain, Minnesota. Holotype.C&t. No. 46187, U.S.N.M. Cyrtodonta persimilis Ulrich. Cyrtodonta persimilis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, figs. 41, 44. Cypricardites persimilis Miller, N. A. Geol. Pal., 1897, p. 781 (gen. ref.). Black River (Platteville): Minneapolis, Minnesota; Beloit, Wisconsin. Cotypes.Va,t. Nos. 46188, 46189, U.S.N.M. 364 BULLETIN 02, UNITED STATES NATIONAL MUSEUM, CYRTODOXTA? PLEBEIA Billings. See Whitella plebeia. Cyrtodonta ponderosa Billings. Cyrtodonta ponderosa Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 150 (adv. sheets, 1862). Cypricardites ponderosa Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Richmond: Cape Smyth, Manitoulin Island, Lake Huron. Cyrtodonta rotulata Ulrich. Cyrtodonta rotulata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 541, pi. 39, figs. 16-19. Black River: Mercer County, Kentucky; Minneapolis and near Fountain, Min- nesota (Decorah). Cotypes Cat. Nos. 46190, 46855, U.S.N.M. Cyrtodonta rugosa Billings. Cyrtodonta rugosa Billings, Canadian Nat. Geol., 3, 1858, p. 432, figs. 1, 2; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 179, figs. 1, 2; Geol. Canada, Geol. Surv. Canada, 1863, p. 148, fig. 104a, b. Cypricardites rugosus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Black River: Near Ottawa, Ontario. Cyrtodonta saffordi (Hall). Palsearca saffordi Hall, Pal. New York, 3, 1859, p. 271, figs. 4, 5; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 11, figs. 4, 5, Cyrtodonta Saffordi Safford, Geol. Tennessee, 1869, p. 287, pi. 2 (F), figs. 2a-g. Cypricardites saffordi Hall and Whitfield, Geol. Surv. Ohio, 2, 1875, p. 177, (gen. ref.). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 179, figs. Trenton (Catheys): Nashville, etc., Tennessee. Ple#iotype.Cat. No. 46191, U.S.N.M. Cyrtodonta scala Raymond. Cyrtodonta scala Raymond, Annals Carnegie Mus., 3, 1906, p. 578. Chazyan (Crown Point): Valcour Island, New York. CYRTODOXTA SIGMOIDEA Billings. See Whitella? sigmqidea. Cyrtodonta sillimanensis Ulrich. Cyrtodonta sillimanensis Ulrich, Proc. U. S. Nat. Mus., 22, 1900, p. 162, pi. 13, figs. 31-33. Mohawkian: Head of Frobisher Bay, Baffin Land. Cotypes. Cat. No. 28159, U.S.N.M. Cyrtodonta solitaria Raymond. Cyrtodonta solitaria Raymond, Amer. Jour. Sci., 20, 1905, p. 373. Chazyan (Crown Point): Near Tracy Brook. Chazy, New York. Cyrtodonta splnifera Billings. Cyrtodonta spinifera Billings, Canadian Nat. Geol. ,3, 1858, p. 435, fig. 12; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 183, fig. 12. Cypricardites spinifera Miller. N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Black River (Leray): Pauquette Rapids, and Fourth Chute of Bonnechere, Canada. Cyrtodonta subangulata (Hall). Edmondia? subangulata Hall, Pal. New York, 1, 1847, p. 156, pi. 35, fig. 2a, b. Palaearca subangulata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 68 (gen. ref.). BIBLIOGRAPHIC LIST OF GENEKA AND SPECIES. 365 Cyrtodonta subaiigulata Continued. Cyrtodonta subangulata Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 185; Canadian Nat. Geol., 3, 1858, p. 437. Cypricardites suhaiigulatus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Trenton: \Vatertown, New York. Cyrtodonta subcarlnata Billings. Cyrtodonta suhcarinata Billings, Canadian Nat. Geol., 3, 1858, p. 433, figs. 5-7; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 181, fig. 5-7; Geol. Canada, Geol. Surv. Canada, 1863, p. 148, fig. 105. Cypricardites subcarinata Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). Cyrtodonta Huronensis var. eubcarinata Chapman, Canadian Jour., n. s., 7, 1862, p. 117, fig. 112; Expos. Min. Geol. Canada, 1864, p. 120, fig. 112. Black River: Pointe Claire and Valley of the Ottawa, Canada. CYRTODONTA SUBOVATA Ulrich. See Cyrtodonta huronensis. CYRTODONTA SUBTRUNCATA Billings. See Whitella subtruncata. Cyrtodonta tenella (Ulrich). Cypricardites tenellus Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minn., 1892, p. 237, fig. 23. Cyrtodonta tenella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 546, pi. 40, fig. 15-19. Black River (Decorah): Six miles south of Cannon Falls, Minnesota. Cotype8.C-&t. No. 46193, U.S.N.M. CYRTODONTA TRANCEPS Raymond. See Endodesma tranceps. CYRTODONTA UNDULOSTRIATA Grabau and Shinier. See Cypricardinia undulostriata. CYRTODONTA? UNGULATA Billings. See Vanuxemia ungulata. CYRTODONTA WINCHELLI Safford. See Modiolodon winchelli. CYRTOGRAPTUS Carruthers. Genotype: C. murchisoni Carruthers. Cyrtograpsus Carruthers, Rep. 37th meeting British Assoc. Adv. Sci., Notes and Abstracts, 1868, p. 57; Geol. Mag., 5, 1868, pp. 73, 127. Cyrtograptus Lapworth, Geol. Mag., dec. 2, 3, 1876, p. 544. Zittel, Handb. Pal., 1, 1879, p. 297. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 267. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief, 1897, p. 650. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 459. Cyrtograptus ulrichi Ruedemann. Cyrtograptus ulrichi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 459, pi. 29, fig. 4, figs. 442, 443. Niagaran (Bainbridge): Bainbridge, Cape Girardeau County, Missouri. Cotypes.Csit. No. 54273, U.S.N.M. CYRTOLITES (part) of authors. See Oxydiscus Koken, Phragmolites Conrad and Cyrtolitina Ulrich. CYRTOLITES Conrad. Genotype: C. ornatus Conrad. Cyrtolites Conrad, Ann. Rep. Nat. Hist. Surv. New York, 1838, p. 118. Hall (part), Pal. New York, 1, 1847, p. 189 footnote. D' Orb igny, Prodr. de Pal., 1, 1849, p. 9. Woodward, Man. Mollusca, pt. 2, 1854, p. 201. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 166. Hall, loth Rep. New York State Cab. Nat. Hist., 1862, pi. 11, fig. 19. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 308. Waagen (part), Pal. Indica (13), pt. 1, 1880, p. 132. Lind- 366 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. C YRTO LITES Continued . strom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, pp. 70, 81. Zittel, Handb. Pal., 2, 1882, p. 185. Koken, Neues Jahrb. f. Min., Geol., Pal., 6, Beliage-Band, 1889, pp. 393, 467. Miller, N. A. Geol. Pal., 1889, p. 401. Matthew, Trans. Royal Soc. Canada, 11, sec. 4, 1894, p. 93. Koken, Die Leitfossilien, Leipzig, 1896, p. 100; Neues Jahrb. f. Min., Geol., Pal., 1, 1898, p. 4.; Bull, de 1'Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 138. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 846-858. Pilsbry, Zittel-East- man Textb. Pal., 1, 1900, p. 445. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 609. Dall. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 522. CYRTOLITES ACUTUS Emmons. See Sinuites cancellata acutus. Cyrtolites carinatus Miller. Cyrtolites carinatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 311, fig. 32; N. A. Geol. Pal., 1889, p. 401, text fig. 667. Ulrich and Scofield, Geol. Minne- sota, 3, pt. 2, 1897, p. 862, pi. 62, figs. 50-52. Grabau and Shimer, N. A. Index Fossils 1, 1909, p. 610, figs. 815 e-g. Eden (Southgate): Cincinnati, Ohio, and vicinity. PlesiotypesC&t. No. 45783, U.S.N.M. CYRTOLITES COMPRESSUS Hall. See Phragmolites compressus. Cyrtolites conradi Hall. Cyrtolites conradi Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 35, fig. 6. Richmond (Maquoketa) : Southwestern Wisconsin. CYRTOLITES COSTATUS James. See Dyeria costata. CYRTOLITES CRISTATUS Safford. See Oxydiscus cristatua. CYRTOLITES DESIDERATUS Billings. See Phragmolites desideratus. Cyrtolites? dilatatus Ulrich and Scofield. Cyrtolites(?) dilatatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 865, pi. 62, figs. 20-26. Black River (Decorah): Goodhue County, Minnesota; Beloit, Wisconsin. Cotype. Cat. No. 45784, U.S.N.M. Cyrtolites disjunctus Ulrich and Scofield. Cyrtolites disjunctus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 864, pi. 62, figs. 48, 49. Richmond (Maquoketa): Near Spring Valley, Minnesota. Holotype.C&t. No. 45785, U.S.N.M. CYRTOLITES DYERI of authors. See Phragmolites dyeri and P. elegans. CYRTOLITES DYERI var. CELLULOSA Ulrich and Scofield. See Phragmolitee dyeri cellulosus. CYRTOLITES ELEGANS Miller. See Phragmolites elegans. CYRTOLITES FILOSUS Hall. See Cyrtoceras filosum. CYRTOLITES FIMBRIATUS Miller. See Phragmolites fimbriatus. CYRTOLITES IMBRICATUS Meek and Worthen. See Phragmolites imbricatus. CYRTOLITES (MICROCERAS) INORNATUS Meek. See Microceras inornatum. I BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 367 CYRTOLITES MAGNUS Miller. See Oxydiscus magnus. CYRTOLITES NITIDULUS Ulrich. See Cyrtolitina nitidula. Cyrtolites ornatus Conrad. Cyrtolites ornatus Conrad, Ann. Geol. Rep. New York, 1838, p. 118; ibid., 1839, p. 63; ibid., 1841, p. 37. Vanuxem, Nat. Hist. New York, Geol. Rep., 3, 1842, pp. 64, 65, fig. 2. Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 376, fig. 2. Hall Pal. New York, 1, 1847, p. 308, pi. 84, figs, la-g. Billings, Canadian Nat. Geol., 1, 1856, p. 43, fig. 6. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 820, fig. 619. Chapman, Canadian Jour., new ser., 7, 1862, p. 119, fig. 119; 8, 1863, p. 206, fig. 207. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 217, fig. 226.^-Chapman, Expos. Min. Geol. Canada, 1864, p. 123, fig. 119; p. 178, fig. 207. Meek, Pal. Ohio, 1, 1873, p. 148, pi. 13, figs. 3a, b. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 308. Roemer, Leth.geog.,1, Leth. Pal., Atlas, 1876, pi. 5, fig. 8a. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 182, figs. Miller, N. A. Geol. Pal., 1889, p. 402, fig. 669. Koken, Neues Jahrb. f. Min., Geol., Pal., 6, Beilage-Band, 1889, p. 483, pi. 13, fig. 3. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 860, pi. 62, figs. 27-29. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 962, pi. 40, figs. 8, 8a. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 609, fig. 815a, b. Porcelia ornata Sharpe, Quart. Jour. Geol. Soc. London, 4, 1847, p. 181. Em- mon.s, Amer. Geology, 1, pt. 2, 1855, p. 167, pi. 17, fig. 21; Man. Geology, 1860, p. 102, fig. 7 only. Maysville and Richmond: Oswego County, etc., New York (Pulaski); Canada; Pennsylvania to Alabama; Ohio Valley; etc. Plesiotypes. Cat. Nos. 17898, 45786, U.S.N.M. Cyrtolites o mat us minor Ulrich and Scofield. . Cyrtolites ornatus var. minor Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 860, pi. 62, figs. 30-31. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 174, pi. 12, figs. 6, 7. Trenton: Cannon Falls, Minnesota (Prosser); New Jersey. IIolotype.G&t. No. 45787, U.S.N.M. CYRTOLITES PANNOSUS Billings. See Phragmolites pannosus. . Cyrtolites parvus Ulrich. Cyrtolites parvus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 864, pi. 62, figs. 45-47. Trenton (Upper): Covington, Kentucky. Holotype.Cat. No. 45788, U.S.N.M. Cyrtolites retrorsus Ulrich and Scofield. Cyrtolites retrorsus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 861, pi. 62, figs. 32-37. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 610, fig. 815c, d. Trenton: Near Burgin, Covington, etc., Kentucky; Nashville, etc., Tennessee. Cotypes.CsLt. Nos. 45789, 45790, U.S.N.M. Cyrtolites retrorsus flllmorensis Ulrich and Scofield. Cyrtolites retrorsus var. fillmorensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 862, pi. 62, figs. 38, 39. Black River (Decorah): Chatfield and near Fountain, Minnesota; Lincoln County, Missouri. Cotypes.CsA. Xo. 45791, U.S.N.M. 368 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtolites .sinuatus Hall and Whitfield. Cyrtolites sinuatus Hall and Whitfield, U. S. Geol. Expl. 40th Parl., 4, 1877, p. 237, pi. 1, figs. 23 ? 24. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 127, pi. 4, fig. 9. Ordovician : White Pine District, Nevada (Upper Pogonip) ; Columbia, New Jersey (Beekmantown). HolotypeCat. No. 17363, U.S.N.M. Cyrtolites sinuosus Hall. Cyrtolites sinuosus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 30, figs. 16-18; mus. ed., 1879, p. 178, pi. 30, figs. 16-18; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 321, pi. 31, figs. 16-18. Niagaran (Waldron): Waldron, Indiana. CYRTOLITES SUBACUTUS Miller. See Oxydiscus subacutus. CYRTOLITES SUBCARINATUS Emmons. See Carinaropsis carinata. CYRTOLITES SUBCOMPRESSUS Meek. See Microceras inornatum. Cyrtolltes subplanus Ulrich. Cyrtolites subplanus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 846, pi. 62, figs. 40-^4. Trenton (Catheys): Nashville, Tennessee. Cotypes.Cat. No. 45792, U.S.N.M. CYRTOLITES TRENTONENSIS Conrad. See Eccyliomphalus trentonensis. Cyrtolites youngi Foerste. Cyrtolites Youngi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 289, pi. 6, fig. 7; Geol. Surv. Ohio, Pal., 8, 1893, p. 549, pi. 31, figs. 7, 7a. Upper Medinan (Brassfield): Hanover, Indiana. CYRTOLITINA Ulrich. Genotype: Cyrtolites lamellifer Lindstrom. Cyrtolites Ulrich (part), Jour. Cin. Soc. Nat. Hist., 2, 1879, p. 12. Lindstrom, Silurian Gastropoda of Gotland, 1884, pp. 82-84. Cyrtolitina Ulrich, Geol. Minnesota, 3, pt. 2, 1897, pp. 847-866. Dall, Zittel- Eastman Textb. Pal., 2d ed., 1913, p. 521. Cyrtolitina nitidula (Ulrich). Cyrtolites nitidulus Ulrich, Jour. Cin. Soc. Nat. Hist., 2, 1879, p. 12, pi. 7, figs. 7,7*. Cyrtolitina nitidula Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 866, pi. 62, figs. 53-55. Trenton (Upper) : River quarries, Covington, Kentucky. Holotype.Cxt. No. 45793, U.S.N.M. CYRTOMETOPUS SCOFIELDI Clarke. See Ceraurinus scofieldi. CTRTORIZOCERAS Hyatt. Genotype: Cyrtoceras minneapolis Clarke. Cyrtorizoceras Hyatt, Zittel-Eastman Textb. Pal.*, 1900, p. 529; ibid, 2d ed., 1913, p. 610. Cyrtorizoceras curvicameratum Clarke and Ruedemann. Cyrtorhizoceras curvicameratum Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 90, pi. 17, figs. 1-10. Xiagaran (Lockport-Guelph): Shelby, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 369 Cyrtorizoceras dardanum (Hall). Cyrtoceras dardanum Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 43; 20th Rep. New York State Cab. Nat. Hist., 1868 (extras Jan., 1865), p. 349, pi. 17(8), figs. 3-5; rev. ed., 1870, p. 406, pi. 17, figs. 3-5. Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 506, pi. 25, figs. 6a, b. Cyrtoceras Fultonensis Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 506. Cyrtorhizoceras dardanus Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 91 (gen. ref.). Niagaran: Waukesha, Wisconsin (Racine); Fulton City, Illinois. Cyrtorizoceras fosteri (Hall). Cyrtoceras fosteri Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 41. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 102. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras Jan., 1865), p. 349, pi. 16(7), * figs. 11-13; rev. ed., 1870, p. 406, pi. 16, figs. 11-13. Cyrtorhizoceras fosteri Clarke and Ruedemann, New York State Mus., 5, 1903, p. 91 (gen. ref.). Niagaran (Racine): Chicago, Illinois; Wisconsin. Cyrtorizoceras Isodorus (Billings). Cyrtoceras Isodorus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 175, fig. 157a, b. Black River: St. Joseph Island, Lake Huron. Cyrtorizoceras mlnneapolls (Clarke). Cyrtoceras minneapolis, Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 808, pi. 59, figs. 1-8. Cyrtorizoceras minneapolis Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 529 (gen. ref.). Black River (Platteville) : Minneapolis, Minnesota. Cotype. Cat. No. 46525, U.S.N.M. CTRTOSPIRA Ulrich. Genotypes: C. tortilis Ulrich and Subulites ventricosus Hall. Cyrtospira Ulrich, Geol. 'Minnesota, 3, pt. 2, 1897, p. 1073. Cyrtosplra abbreviata (Hall). Subulites abbreviata Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 180, pi. 3, fig. 2a-c; doc. ed., p. 172. Cyrtospira abbreviata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070 (gen. ref.). Trenton: Near Watertown, New York. Cyrtospira attenuata Ruedemann. Cyrtospira attenuata Ruedemann, Bull. New York State Mus., 49, 1901, p. 35, pi. 2, fig. 8. Mohawkian (Rysedorph): Ryeedorph Hill, Rensselaer County, New York. Cyrtospira bicurvata Ulrich. Cyrtospira bicurvata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1074, pi. 81, figs. 21, 22. Black River (Lowville) : High Bridge, Kentucky. Holotype. Cat. No. 45794, U.S.N.M. 84243 Bull. 9215- 24 370 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cyrtosplra notata (Billings). Subulites notatus Billings, Cat. Sil. Fossils, Anticosti, Geol. Surv. Canada, 1866, p. 54. Cyrtospira notatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070, (gen. ref.). Anticostian (Ellis Bay): Junction Cliff, Anticosti Cyrtospira parvulus (Billings). Subulites parvulus Billings, Pal. Fossils, 1, Geol. Sun-. Canada, 1865, p. 36 (adv- sheets, 1862). Cyrtospira parvulus Ulrich "and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070 (gen. ref.). Black River (Leray): Pauquette Rapids, Ottawa River and near L' Original, Canada. *. Cyrtospira raymondi (Hudson). Subulites raymondi Hudson. Bull. New York State Mus., 80, 1905, p. 293, pi. 4, figs. 1, 2. Cyrtospira raymondi Raymond, Ann. Carnegie Mus., 4, 1908, p. 210, pi. 54, figs. 14, 15. Chazyan (Crown Point, Valcour): Valcour Island and Chazy, New York. Cyrtospira tortilis Ulrich. Cyrtospira tortilis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1074, pi. 81, figs. 24, 25. Subulites tortilis Miller, N. A. Geol. Pal., 2d App., 1897, p. 770 (gen. ref.). Stones River (Murfreesboro) : Murfreesboro, Tennessee. Holotype.C&t. No. 46053, U.S.N.M. Cyrtospira ventricosa (Hall). Subulites ventricosa Hall, Pal. New York, 2, 1852, p. 347, pi. 83, fig. 7a, b. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 346. Hall, 20th Rep. New York State Cab. Hist., 1868, p. 346, pi. 15 (6), fig. 1; rev. ed. (1870), p. 398, pi. 15, fig. 1; p. 433. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 71, pi. 3, fig. 5; Quart. Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26, fig. 5. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 193, pi. 15, figs. 19-21; pi. 18, fig. 58, 59. Chamberlin, Geol. Wisconsin, 1, 1883, p. 193, fig. Lesley, Geol. Surv. Pennsylvania Rep. P 4, 1890, p. 1144, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 96. Cyrtospira ventricosa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1073 (gen. ref.). Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 338. Niagaran (Guelph): Gault, etc., Ontario; Wisconsin. Cyrtospira wykoffensis Ulrich and Scofield. Cyrtospira wykoffensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1074, pi. 81, fig. 23. Subulites wykoffensis Miller, N. A. Geol. Pal., 2d App., 1897, 'p. 770 (gen. ref.). Trenton (Prosser) : Wykoff , Minnesota. Holotype.Ca,t. No. 45795, U.S.N.M. CYRTOTHECA COREUGATA Matthew. See Styliola corrugata. CYRTOTHECA MINUTA Matthew. See Styliola minuta. CYSTASTER Hall. See Hemicystites Hall. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 371 CTSTIPHOROLITES Miller. Genotype: Vesicularia major Rominger. Vesicularia Rominger (not Thompson), Geol. Surv. Michigan, 3, pt. 2, 1876, p. 135. Cystiphorolites Miller, N. A. Geol. Pal., 1889, p. 183. Sherzer, Amer. Geol., 7, 1891, pp. 290-301. Cystiphorolites major (Rominger). Vesicularia major Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 135, pi. 49, upper tier. Cystiphorolites major Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.). Niagaran: Point Detour; Drummonds Island, Michigan. Cystiphorolites minor (Rominger). Vesicularia minor Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 136, pi. 49, upper tier. 'Cystiphorolites minor Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.). Niagaran: Masonville, Iowa. Cystiphorolites variolosus (Rominger). Vesicularia variolosa Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 136, pi. 49, fig. 4. Cystiphorolites variolosa Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.). . Niagaran: Point Detour, Michigan. CTSTIPHYLLUM Lonsdale. Genotype: C. siluriense Lonsdale. Cystiphyllum Lonsdale in Murchison's Sil. Syst., 1839, p. 691. Dana, Wilkes' U. S. Expt. Exped., 1838-1842, 7, Zoophytes, 1846, p. 360; Amer. Jour. Sci. Arts (2), 1, 1846, p. 186. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr., Pal., 1851 (Arch, du Mus. d'Hist, Nat., 5), pp. 175, 462. McCoy, British Pal. Rocks Foss., 1854, p. 32. Pictet, Traite* de Pal., 2d ed., 4, 1857, p. 462. Billings, Geol. Surv. Canada, Rep. Progr. for 1857, p. 178; Canadian Nat. Geol., 3, 1858, p. 430; Canadian Jour., n. s., 4, 1859, p. 136. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 447. Lindstrom, Geol. Mag., 3, 1866, p. 359. Dybowski, Archiv. f. Naturf. Liv-, Ehst- und Kurl., 5, 1873, pp. 340, 522. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 35. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 137. Zittel, Handb. Pal., 1, Munich, 1879, p. 234. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 399. Freeh, Pal. Abh., Dames and Kayser, bd. 3, Heft 3, 1886, p. 108. Miller, N. A. Geol. Pal., 1889, p. 183. Freeh, Palaeontographica, 37, 1890, p. 43. Sherzer, Amer. Geol., 7, 1891, pp. 277, 296-301. Koken, Die Leitfossilien, Leipzig, 1896, p. 312. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 126. Zittel-Eastman Textb. Pal., 1, 1900, p. 79. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt 2, 1901, p. 190. Pocta, Syst. Sil. Centre Boheme, 8, pt. 2, 1902, p. 160. Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 87. Conophyllum Hall, Pal. New York, 2, 1852, p. 114; Amer. Jour. Sci. and Arts, 2d ser., 11, 1851, p. 399 (Genotype: C. niagarense Hall). Cystiphyllum americanum anderdonense Grabau. Cystiphyllum americanum mut. anderdonense Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 104, pi. 12, figs. 3-5. Upper Monroan: Detroit River region (Amherstburg) ; Amherstburg, Ontario (Anderdon). Cystiphyllum gemmula Greene. Cystiphyllum gemmula Greene, Cont. Indiana Pal., pt. 2, 1899, p. 12, pi. 6> figs. 8, 9. Niagaran (Louisville): Louisville, Kentucky. 372 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cystiphyllum granilineatum Hall. Cystiphyllum granilineatum Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 274, pi. 15, fig. 13; pi. 23, fig. 13; 35th Rep. New York State Mus. Nat. Hist., p. 418 (ext., 1882, p. 14). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 184, figs. Niagaran (Louisville): Louisville, Kentucky. CYSTIPHYLLUM HURONENSE Billings. See Cystiphyllum niagarense. Cystiphyllum incurvum Davis. Cystiphyllum incurvum Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 124, figs. 6-8: Niagaran (Louisville): Louisville, Kentucky. Cystiphyllum lineatum Davis. Cystiphyllum lineatum Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 128, figs. 1-4. Niagaran (Louisville) : Louisville, Kentucky. Cystiphyllum louisvillense Greene. Cystiphyllum louisvillensis Greene, Cont. Indiana Pal., 1, pt. 6, 1901, p. 45, pi. 16 figs. 7-10. Niagaran (Louisville): Louisville, Kentucky. Cystiphyllum maritimum Billings. Cystiphyllum maritima Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 112 (adv. sheets, 1862). Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 191, pi. 18, figs. 2, 2a. Silurian: L'Anse a la Vieille, Bay of Chaleurs, Quebec. Cystiphyllum niagarense (Hall). Chonophyllum niagarense Hall, Pal. New York, 2, 1852, p. 114, pi. 32, fig. 4a-n. Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig. Miller, N. A. Geol. Pal., 1889, p. 177, fig. 150. Sherzer, Bull. Geol. Soc. Amer., 3, 1892, p. 266. Grabau, Bull. New York State Mus., 45, 1901, p. 139, fig. 32. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 62, fig. 92. Cystiphyllum Niagarense Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 138, pi. 49, fig. 3. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 124, figs. 1-5. Lambe, Ottawa Nat., 12, 1899, p. 224; Cont. Can. Pal., Geol. Surv. Canada, -4, pt. 2, 1901, p. 190, pi. 16, fig. 7. Cystiphyllum Huronense Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 92. Niagaran: Lockport, etc., New York (Lockport); Louisville, Kentucky (Louis- ville); Drummond Island, etc., Lake Huron; Wisconsin; Anticosti. Cystiphyllum spinulosum Foerste. Cystiphyllum spinulosum Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 321, pi. 5, figs. la-k. Clinton (Waco): Near Estill Springs, Waco and Panola, Kentucky. CTSTOCRINUS Roemer. Genotype: C. tennesseensis Roe Cystocrinus Roemer, Silur. Fauna West Tennessee, 1860, p. 56. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 404 (Rev. Pal., pt. p. 230). Miller, N. A. Geol. Pal., 1889, p. 237. BIBLIOGRAPHIC LIST OK GENERA AM) Sl'KClES. 373 Cystocrlnus tennesseeiisis Roemer. Cystocrinus tennesseensia Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 56, pi. 4, figs. 8a-d. Miller, N. A. Geol. Pal., 1889, p. 237, fig. 279. Bather, Geol. Mag., dec. 4, 5, 1898, p. 327, fig. 2. Foerste, Jour. Geol., 11, 1903, p. 712. Niagaran (Brownsport) : Decatur and Perry Counties, Tennessee. CYSTOSTYLUS Whitfield. Genotype: C. typicus Whitfield. Cystostylus Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1879, 1880, p. 63; Geol. Wisconsin, 4, 1882, p. 273. Miller, N. A. Geol. Pal., 1889, p. 184. Sherzer, Amer. Geol., 8, 1891, pp. 296-301. Cystostylus infundibulus (Whitfield). Syringopora infundibula Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 79. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 53. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 35, pi. 1, figs. 6-9. Cystostylus infundibulus Whitfield, Geol. Wisconsin, 4, 1882, p. 274, pi. 14, fig. 7. Chamberlin, Geol. Wisconsin, 1, 1883, p. 188, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 2 (loc. occ.); ibid., pt. 2, 1895, p. 49 (loc occ.). Niagaran: Milwaukee and Wauwatosa, Wisconsin (Racine); Durham, Ontario, and Shelby, New York (Guelph). Cystostylus typicus Whitfield. Cystostylus typicus Whitfield, Ann. Rep. for 1879, Wisconsin Geol. Surv., 1880, p. 64; Geol. Wisconsin, 4, 1882, p. 274, pi. 14, figs. 8, 9. Niagaran (Racine- Waukesha) : Cato and Sturgeon Bay, Wisconsin. CYTHERE BALTICA Roemer. See Leperditia hisingeri. CYTHERE CINCINNATIENSIS Meek. See Elpe cincinnatiensis. CYTHERE IRREGULARIS Miller. See Elpe irregularis. CYTHERE SUBL^EVIS Shumard. See Leperditia sublaevis. CYTHERELLA Jones. Genotype: C. ovata (Roemer). Cytherella Jones, Mon. Entom. Cret. Form., 1848, p. 28. Bosquet, Desc. Entom. Foss. Terr. Tert., 1852, p. 10. Bonnemann, Zeits. d. d. geol. Gesell ., 7, 1855, p. 353. Richter, Zeits. d. d. geol. Gesell., 19, 1867, p. 226. Jones, Kirkby, and Brady, Mon. Brit. Foss. Biv. Entom. Carb. Form., Pal. Soc., 1874, p. 6; ibid., 1884, p. 57, 70. Zittel, Handb. Pal., 1885, p. 556. Jones and Kirkby, Proc. Geol. Assoc. London, 9, 1886, p. 502. Jones, Ann. Mag. Nat. Hist., 5th ser., 19, 1887, p. 192. Vogdes, Annals New York Acad. Sci., 5, 1889, p. 4, pi. 2, fig. 4. Miller, N. A. Geol. Pal., 1st App., 1892, p. 707._Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 684. Koken, Die Leitfos- silien, Leipzig, 1896, p. 40. Zittel-Eastman Textb. Pal., 1, 1900, p. 646. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 366. Bassler, Zittel- Eastman Textb. Pal., 2d ed., 1913, p. 740. Cytherella? rugosa (Jones). Cytheropsis rugosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 249, pi. 10, fig. 5; Geol. Surv. Canada, dec. 3, 1858, p. 100. Primitia rugosa Jones and Holl, Ann. Mag. Nat. Hist., 4th ser., 2, 1868, p. 55, foot- note (gen. ref.). 374 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Cytherella? rugosa Continued. Cytherella? rugosa Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. S9 (gen. ref.). Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 686, pi. 43, figs. 21-24. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 366, fig. 1666, t, u. Black River (Leray) : Pauquette Rapids, Ottawa River, Canada. Trenton (Prosser) : Near Cannon Falls, Minnesota. Plesiotypes.Czt. No. 41814, U.S.N.M. Cytherella? rugosa a ret a Ulrich. Cytherella? rugosa var. arcta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 686, pi. 43, fig. 25. Trenton (Prosser) : Near Cannon Falls, Minnesota. Holotype.Ca,t. No. 41815, U.S.N.M. Cytherella? subrotunda Uhich. Cytherella? subrotunda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 685, pi. 44, fig. 43. Black River (Decorah) : Minneapolis, Minnesota. CYTHERINA ALTA Conrad. See Leperditia alta and L. jonesi. CYTHERINA BALTHICA Hisinger (part). See Leperditia hisingeri. CYTHERINA CRENULATA Emmons. See Cytheropsis crenulata. CYTHERINA CYLINDRICA Hall. See Leperditia cylindrica. CYTHERINA EMMONSI Vogdes. See Cytheropsis emmonsi. CYTHERINA FABULITES Conrad. See Leperditia fabulites. CYTHERINA PHASEOLUS Hisinger. See Leperditia phaseolus. CYTHERINA SPINOSA Hall. See ^Echmina spinosa. CYTHERINA SUBCYLINDRICA Emmons. See Cytheropsis emmonsi. CYTHERINA SUBELLIPTICA Emmons. See Cytheropsis subelliptica. CYTHERODON Hall. Genotype: C. nasutus Hall. Cytherodon Hall, 23d Rep. New York State Cab. Nat. Hist., 1873, pi. 14, figs. 19-21; Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 53. Miller, N. A. Geol. Pal., 1889, p. 477. Cytherodon? placidus Billings. Cytherodon? placidus Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 137, pi. 8, fig. 10 (var. pi. 8, fig. 11). Silurian: Arisaig, Nova Scotia. Cytherodon? soclalis Billings. Cytherodon? socialis Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 138, pi. 8, fig. 12. Silurian: Arisaig, Nova Scotia. CTTHEROPSIS McCoy. Genotype: C. aldensis Me Cytheropsis McCoy, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, p. 414; Cont. British Pi 1854, p. 153; Synopsis British. Pal. Rocks., 1855, pi. 1 L, fig. 2. Jones, Ai Mag. Nat. Hist. (3), 1, 1858, p. 248; Geol. Surv. Canada, dec. 3, 1858, p. 98.- Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 508. Miller, N. A. Geol. Pal., 1889, p. 541. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 375 CYTHEROPSIS CINCINNATIENSIS Miller. See Elpe cincinnatiensis. CYTHEROPSIS CONCINNA Jones. See Aparchites concinnus and Primitia muta. Cytheropsis crenulata (Emmons). Cytherina crenulata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 220, figs. 75d, c. Lesley; Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 187, figs. Cytheropsis crenulata Miller, N. A. Geol. Pal., 1889, p. 541 (gen. ref.). Trenton: Middleville, New York. Cytheropsis emmonsi (Vogdes). Cytherina subcyclindrica Emmons (preoccupied), Amer. Geology, 1, pt. 2, 1855, p. 220, fig. 75b. Cytheropsis subcyclindrica Miller, N. A. Geol. Pal., 1889, p. 542 (gen. ref.). Cytherina emmonsi Vogdes, Annals New York Acad. Sci., 5, 1889, p. 13k. Trenton: Middleville, New York. CYTHEROPSIS IRREGULARIS Miller. See Elpe irregularis. CYTHEROPSIS RUGOSA Jones. See Cytherella? rugosa. CYTHEROPSIS SILIQUA Jones. See Macrocypris? siliqua. CYTHEROPSIS SUBCYLINDRICA Emmons. See Cytheropsis emmonsi. Cytheropsis subelliptica (Emmons). Cytherina subelliptica Emmons, Amer. Geology, 1, 1855, p. 220, fig. 75a. Cytheropsis subelliptica Miller, N. A. Geol. Pal., 1889, p. 542 (gen. ref.). Trenton: Near Water town, New York. CYTOCRINUS Roemer. See Melocrinus Goldfass. DACTYLOPHYCUS Miller and Dyer. Genotype: D. tridigitatum Miller and Dyer. Dactylophycus Miller and Dyer, Cont. to Pal., 2, 1878, p. 1. James, Jour. Cincin- nati Soc. Nat. Hist., 7, 1885, p. 164. Miller, N. A. Geol. Pal., 1889, p. 116. Dactylophycus quadripartitum Miller and Dyer. Dactylophycus quadripartitum Miller and Dyer, Cont. to Pal., 2, 1878, p. 2, pi. 3, fig. 1. Eden (Economy): Cincinnati, Ohio, and vicinity. Dactylophycus tridigitatum Miller and Dyer. Dactylophycus tridigitatum Miller and Dyer, Cont. to Pal., 2, 1878, p. 2, pi. 3, fig. 2. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 164. Miller, N. A. Geol. Pal., 1889, p. 116, fig. 29. Eden (Economy): Cincinnati, Ohio, and vicinity. DJ2DALUS Rouault. Genotype: D. newtoni Rouault. Daedalus Rouault, Bull. Soc. Geol. France, 2d ser., 7, 1850, p. 736. Sarle, Proc. Rochester Acad. Sci., 4, 1906, p. 203. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 247. Vexillum Rouault, Bull. Soc. Geol. France, 2d ser., 7, 1850, p. 733 (Genotype: V. labechei Rouault). Daedalus archimedes (Ringueberg). Arthrophycus sp. Hall, Pal. New York, 2, 1852, p. 6, pi. 2, fig. 2. Spirophyton archimedes Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 144, pi. 2, fig. 1. Taonur us archimedes Miller, N. A. Geol. Pal., 1889, p. 146 (gen. ref.). 376 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Daedalus archimedes Continued. Daedalus archimedes Sarle, Proc. Rochester Acad. Sci., 4, 1906, p. 203. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 248. Upper Medinan: Lockport, etc., New York; Pennsylvania; Maryland; Virginia; Tennessee. DALMANELLA Hall and Clarke. Genotype: Orthis testudinaria Dalman. Orthis (group of 0. testudinaria) Hall, Bull. Geol. Soc. Amer., 1, 1889, p. 21. Dalmanella Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 205, 223. Win- chell and Schuchert, Geol. Minnesota, 3, 1893, p. 439. Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 170. Wysogorski, Zeits. d. d. geol. Gesell., 52, 1900, p. 225. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 187; Bull. New York State Mus., 45, 1901, p. 187. Grabau and Shimer, N., A. Index Fossils, 1, 1907, p. 259. Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res. Indiana, 1908, p. 888. DALMANELLA AMCENA Schuchert. See Pianodema amcena. Dalmanella a re u aria Hall and Clarke. Dalmanella arcuaria Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 224, 341, pi. 5C, figs. 20, 21. Foerste, Jour. Geol., 11, 1900, p. 711 (loc. occ.). Orthis (Dalmanella) arcuaria Hall and Clarke, 48th Rep. New York State Mus. for 1895, 2, 1897, p. 340, pi. 4, figs. 13, 14; 14th Rep. State Geol. New York for 1894, 1897, p. 340, pi. 4, figs. 13, 14. Niagaran (Brownsport) : Perry County, Tennessee. Dalmanella bassleri Foerste. Dalmanella bassleri Foerste, Bull. Sci. Lab. DenisonUniv., 14, 1909, p. 215. Trenton (Upper): Carnestown, etc., Kentucky; Florence, Indiana. DALMANELLA BELLULA Hall and Clarke. See Pianodema bellula. DALMANELLA BREVICULUS Foerste. See Dalmanella emacerata brevicula. Dalmanella centrilineata (Hall). Orthis centrilineata Hall, Pal. New York, 1, 1847, p. 289, pi. 79, fig. 5. Dalmanella centrilineata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 260. Cincinnatian (Pulaski): Lorraine and Turin, New York. Dalmanella clarki Maynard. Dalmanella clarki Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 300", pi. 54, figs. 7-10. Helderbergian: (Keyser): Cash Valley, Maryland. Dalmanella concinna (Hall). Orthis concinna Hall, Pal. New York, 3, 1859, p. 172, pi. lOa, figs. 1-3. Dalmanella concinna Hall and Clarke, Pal. New York, 8, 1892, pt. 1, pp. 207, 224. Maynard, Maryland Geol. Surv., Low Dev., 1913, p. 301, pi. 54, figs. 11-13. Helderbergian (Keyser): Cumberland, etc., Maryland; Keyser, West Virginia; Pleasant Valley and Hyndman, Pennsylvania. Dalmanella corpulenta (Sardeson). Orthis corpulenta Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 330, pi. 5, figs. 8-10; Amer. Geol., 19, 1897, p. 101, pi. 4, figa. 11-19. Orthis (Dalmanella) testudinaria var. meeki Winchell and Schuchert (not Miller), Geol. Minnesota, 3, 1893, p. 445, pi. 23, figs. 25-29. Richmond (Maquoketa): Granger and Spring Valley, Minnesota. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 377 DALMANELLA CRISPATA Hall and Clarke. See Hebertella (Glyptorthis) crispata. Dalmanella edgewoodensls Savage. Dalmanella edgewoodensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 76, pi. 4, figs. 11-13, pi. 7, fig. 9. Upper Medinan: Near Thebes, Illinois; Missouri (Edgewood); Will County, Illinois (Channahon). Dalmanella electra (Billings). Orthis Electra Billings, Pal. Fossils, 1, 1865, p. 79, fig. 72; p. 217; Geol. Canada, 1863, p. 231, fig. 246. White, Wheeler's Rep. Geol. Geogr. Expl. west 100 Merid., 4, 1875, p. 55. Lesley, Geol. Surv. Pennsylvania, Hep. P 4, 1889, p. 513, figs. Dalmanella electra Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 223. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 125, pi. 4, fig. 13. Canadian: Point Levis, Quebec; Point Rich, etc., Newfoundland; St. John, New Brunswick; House Range, Utah; Columbia, New Jersey. Dalmanella electra laevls (Matthew). Orthis electra var. leevis Matthew, Trans. Royal Soc. Canada, 10, 1893, p. 100. Dalmanella electra laevis Schuchert, Bull. U. S. Geol. Surv., 87, 1899, p. 200. Canadian (Bretonian Div. C3d): St. John, New Brunswick. Dalmanella electra major (Matthew). Orthis electra var. major Matthew, Trans. Royal Soc. Canada, 10, 1893, p. 100, pi. 7, fig. 3. Dalmanella electra major Schuchert,. Bull. U. S. Geol. Surv., 87, 1897, p. 200. Canadian (Bretonian Div. C 3d): St. John, New Brunswick. Dalmanella elegantula (Dalman). Orthis elegantula Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 117, pi. 2, fig. 6. Hall, Pal. New York, 2, 1852, p. 252, pi. 52, fig. 3. Billings. Canadian Nat. Geol., 1, 1856, p. 136, pi. 2, fig. 5. Roemer, Sil. Fauna West Tennessee, 1860, p. 62, pi. 5, fig. 7. Billings, Geol. Canada, 1863, p. 312, fig. 320. Chapman, Canadian Jour., n. s., 8, 1863, p. 212, fig. 218; Expos. Min. Geol. Canada, 1864, p. 184, fig. 218. Davidson, Mon. British Sil. Brach., Pal. Soc.,- 1869, p. 205, figs. 1, 2; p. 211, pi. 27, figs. 1-9. Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, p. 150, pi. 21, figs. 11-17; llth Rep. State Geol. Indiana, 1882, p. 285, pi. 21, figs. 11-17; 2d Ann. Rep. State Geol., 1883, pi. 35, figs. 34-37; 36th Rep. New York State Mus. Nat. Hist., 1884, p. 75, pi. 3, figs. 8, 9. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 84, pi. 13, fig. 1. Miller, N. A. Geol. Pal., 1889, p. 357, fig. 590. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 514, figs. Nettelroth, Ken- tucky Foss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 37, pi. 32, figs. 52-57. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 14, pi. 1, figs. 3-12. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 307. Orthis canalis Hall, Geol. New York, Rep. 4th Dist., 1843, p. 105, fig. 6. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 313, fig. 6. Emmons, Man. Geol., 1860, p. 109, fig. 99. Orthis elegantula? var. Hall, Pal. New York, 2, 1852, p. 57, pi. 20, fig. 7. Dalmanella elegantula Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207, 224, pi. 5C, figs. 15-19. Grabau, Bull. New York State Mus., 45, 1901, p. 187, fig. 97; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 187, fig. 97. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 41, pi. 4, fig. 9. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 433, pi. 2, fig. 9. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 261, fig. 312. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 27. 378 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dalmanella elegantula Continued. Orthis (Dalmanella) elegantula Foerste, Geol. Ohio, 7, 1895, p. 581, pi. 25, figs. 11, 17. Silurian: Europe. Widely distributed in all of the post-Richmond Silurian formations of eastern North America. Plesiotypes.Czt. No. 51345, U.S.N.M. (Nettelroth.) Dalmanella elegantula media (Shaler). Orthis media Shaler, Bull. Mus. Comp. Zool., 1, 1865, p. 65. Billings, Cat. Sil. Fossils of Anticosti, 1866, p. 41. Rhipidomella media Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 349. Anticostian (Jupiter River and Chicotte): Southwest Point, etc., Anticosti. Dalmanella elegantula parva (Foerste). Orthis elegantula var. parva Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 85, pi. 13, fig. 17. Dalmanella elegantula var. parva Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 224. Upper Medinan (Brassfield): Dayton, Ohio. DALMANELLA EMACERATA Foerste (1909). See Dalmanella fultonensis. Dalmanella emacerata (Hall). Orthis emacerata Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 121; 15th Rep. ibid., 1862, pi. 2, figs. 1, 3. Billings, Canadian Nat. Geol., 7, 1862, p. 393. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 24, Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 14, 15. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 515, figs. Keyes, Geol. Surv. Missouri, 5, 1895, p. 58. Sardeson, Amer. Geol., 19, 1897, p. 102, pi. 5, figs. 14, 18, 28. Orthis cyclus James, Cincinnati Quart, Jour. Sci., 1, 1874, p. 19. Dalmanella emacerata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207, 224, pi. 5C, figs. 1, 2. Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 260, fig. 311i-m. Foerste, Sci. Lab. Denison Univ., Bull. 17, 1912, p. 128, pi. 8, figs. 3a, b. Dalmanella testudinaria var. emacerata Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res., Indiana, 1908, p. 898, pi. 33, figs. 5-5a. Dalmanella emacerata filosa Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 214, pi. 4, fig. 1. Eden (Fulton-Sou thgate): Cincinnati, Ohio, and vicinity. Dalmanella emacerata brevicula (Foerste). Dalmanella breviculus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, pp. 216, 322, pi. 7, fig. 5. Orthis emacerata (part) Hall, 15th Rep. New York State Cab. Nat. Hist., 1862, pi. 2, fig. 2. Dalmanella emacerata brevicula Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 128. Eden (Southgate): Cincinnati, Ohio; Vevay, Indiana. DALMANELLA EMACERATA FILOSA Foerste. See Dalmanella emacerata. Dalmanella(?) evadne (Billings). Orthis evadne Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 81, fig. 74; p. 79 (adv. sheets 1862). Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 300, pi. 24, fig. 8. Seely, Vermont State Geol., Rep., 7, 1910, pi. 62, fig. 8. Dalmanella? evadne Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 223, pi. 5B, figs. 25, 26. Canadian: Point Levis, Quebec (Levis); Fort Cassin, Vermont (Beekmantown) . BIBLIOGRAPHIC LIST OF GENERA AND SPECIE. 379 Dalmanella fairmountensis Foerste. Dalmanella fairmountensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 216, pi. 4, figs. 2a-c; p. 322, pi. 7, fig. 2. Maysville (Bellevue): Hamilton and Cincinnati, Ohio; New Trenton, etc., Indiana. Dalmanella fertilis Bassler. Orthis (Dalmanella) testudinaria Hayes and Ulrich, U. S. Geol. Surv., folio 95, Illust. Sheet, 1903, figs. 42, 43. Orthis (Dalmanella) fertilis Bassler, Bull. Virginia Geol. Surv., 2, 1909, pi. 24; fig. 5. Trenton (Hermitage): Central Tennessee, Kentucky, and Virginia. . Cotypes and pksiotypes.C&t. No. 35455, U.S.N.M. DALMANELLA FISSLPLICA Foerste. See Orthostrophia (Schizoramma) fissiplica. Dalmanella freitana (Clarke). Orthis (Dalmanella) freitana Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Engl. ed., 1900, p. 10, pi. 1, figs. 22-24. Silurian: Rio Trombetas, Brazil. Dalmanella fultonensls Foerste. Dalmanella emacerata Foerste, Bull. Sci. Lab. Denison Univ., 14,. 1909, p. 321, pi. 7, fig. 1. Dalmanella fultonensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 129. Eden (Fulton) : Cincinnati, Ohio. Dalmanella futilis (Sardeson). Orthis futilis Sardeson, Amer. Geol., 19, 1897, p. 104, pi. 5, figs. 25-27. Dalmanella testudinaria futilis Schuchert, Bull. U. S. Geol. Surv., 87, p. 205. Richmond (Maquoketa): Near Granger and Wykoff, Minnesota. DALMANELLA GIBBOSA Hall and Clarke. See Pianodema subsequata gibbosa. Dalmanella hamburgensis (Walcott). Orthis hamburgensis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 73, pi. 2, fig. 5. Orthis (Dalmanella) hamburgensis? Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 440, pi. 33, figs. 14-16. Upper Pogonip: Eureka District, Nevada. Black River: St. Paul, etc., Minnesota (Decorah); High Bridge, Kentucky (Lowville). Cotypes. -Cat. No. 17259, U.S.N.M. Dalmanella hollensis Cleland. Dalmanella holiensis Cleland, Bull. Amer. Pal., 3, 1900, p. 130 (258), pi. 17, fig. 9. Canadian (Tribes Hill) : Near Fort Hunter, New York. lalmanella ignota (Sardeson). Orthis ignota Sardeson, Amer. Geol., 19, 1897, pp. 99, 181, pi. 5, figs. 1-7. Dalmanella testudinaria ignota Schuchert, Bull. U. S. Geol. Surv., 87, 1907, p. 205. Richmond (Maquoketa): Near Spring Valley, Minnesota. LNELLA JUGOSA Foerste. See Dalmanella meeki. Dalmanella luiiata (Sowerby). Orthis lunata Sowerby, Sil. Syst., 1839, p. 611, pi. 5, fig. 15. Davidson, British Sil. Brach., 1869, p. 215, pi. 28, figs. 1-5. 380 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Balmanella lunata Continued. Dalmanella lunata Williams, Proc. U. S. Nat. MUB., 45, 1913, p. 337, pi. 30, figs. 1-5, 8. Orthis orbicularis Sowerby, Sil. Syst., 1839, p. 611, pi. 5, fig. 16. Silurian: England; Leighton Cove, Washington County, Maine (Pembroke). . Cat. Nos. 58957-58959, U.S.N.M. Dalmanella macleodl (Whitfield). Orthis macleodi Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 43, pi. 7, figs. 1-4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 523, figs. Dalmanella macleodi Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 224. Canadian (Beekmantown) : Beekmantown, New York. Dalmanella macrior (Sardeson). Orthis macrior Sardeson, Bull. Minnesota Acad. Nat. Sci:, 3, 1892, p. 330, pi. 5, figs. 5-7. Orthis (Dalmanella) testudinaria var. emacerata Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 445, pi. 33, figs. 23-24. Orthis emacerata Sardeson, Amer. Geol., 19, 1897, p. 102, pi. 5, figs. 14-18, 28. Richmond (Maquoketa) : Spring Valley and Granger, Minnesota. Dalmanella meeki (Miller). Orthis emacerata Meek (not Hall), Pal. Ohio, 1, 1873, p. 109, pi. 8, figs. 1, 2. Orthis parva Billings (not Verneuil), Cat. Sil. Foss, Anticosti, 1866, p. 41. Orthis meeki Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 20. Sardeson, Amer. Geol., 19, 1897, p. 98, pi. 4, figs. 24-29. Dalmanella meeki Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 206, 224, pi. 5C, fig. 3. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 218 (synonymy and history discussed). Dalmanella testudinaria var. meeki Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 899, pi. 33, figs. 6-g. Orthis jugosa James, Paleontologist, 4, 1879, p. 31. Dalmanella jugosa Foerste, Bull. Sci. Lab. Denison Univ., 4, 1909, pi. 14, figs. 16a-b, p. 218; Ohio Nat., 12, No. 3, 1912, p. 453, pi. 22, fig. 1. Richmond: Oxford, etc., Ohio; Indiana; Kentucky; Anticosti; etc. Dalmanella melita (Hall and Whitfield). Leptsena melita Hall and Whitfield, King's U. S. Geol. Surv., 40th ParL, 4, 1877, p. 208, pi. 1, figs. 13, 14. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 22. Dalmanella melita Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 202. Lower Pogonip: Eureka District, Nevada. Dalmanella modesta Savage. Dalmanella modesta Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 48, pi. 1, figs. 14, 15. Upper Medinan (Girardeau): Alexander County, Illinois. Dalmanella multisecta (Meek). Orthis multisecta James, Cat. L. Sil. Foss. Cincinnati Group, 1871, p. 10 (nom. nud.). Sardeson, Amer. Geol., 19, 1897, p. 97, pi. 4, figs. 20-23. Orthis emacerata var. multisecta Meek, Pal. Ohio, 1, 1873, p. 112, pi. 8, fig. 3. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 22. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 515, figs. Dalmanella testudinaria var. multisecta Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 901, pi. 33, figs. 4, 4c. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 205. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 381 Dalmauella multisecta Continued. Dalmanella multisecta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207- 224. Cumings, Amer. Geol., 28, 1901, p. 374. Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 217. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 14, figs. 4-6. Eden: Cincinnati, Ohio, and vicinity; Maryland; Virginia; East Tennessee; Albany County, New York (Indian Ladder). DALMANELLA PERVETA Hall and Clarke. See Pianodema subsequata and P. sub- sequata perveta. DALMANELLA? PLICIFERA Schuchert. See Leptsena incrassata. Dalmanella porrecta (Sardeson). Orthis porrecta Sardeson, Amer. Geol., 19, 1897, p. 104, pi. 5, figs. 19-24. Dalmanella testudinaria porrecta Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 205. Richmond (Maquoketa) : Near Granger, Minnesota. Dalmanella postelegantula Weller. Dalmanella postelegantula Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 232, pi. 20, figs. 21-24. Helderbergian (Decker Ferry): Two miles south of Tristates, New York. Dalmanella rogata (Sardeson). Orthis rogata Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5, figs. 1-4; Amer. Geol., 19, 1897, p. 95, pi. 4, figs. 1-10. Orthis (Dalmanella) testudinaria Hall, Pal. New York, 8, pt. 1, 1892, pi. 5B, figs. 27 to 31. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 441, pi. 33, figs. 17-22. Black River and Trenton: St. Paul, etc., Minnesota; Iowa and Wisconsin. Dalmanella? ruida (Billings). Orthis ruida Billings, Cat. Sil. Fossils of Anticosti, 1866, p. 42. Gamachian (Ellis Bay): Gamache Bay, Anticosti. Dalmanella smith! (Clarke). Orthis (Dalmanella) smithi Clarke, Archivos Mus. Nac. Rio de Janeiro, 10, author 's Eng. ed., 1900, p. 11, pi. 1, figs. 12-16. Silurian: Rio Trombetas, Brazil. DALMANELLA STONENSIS Hall and Clarke. See Pianodema stonensis. DALMANELLA SUB^QUATA Hall and Clarke. See Pianodema stibaequata. DALMANELLA SUBSEQUATA var. PERVETUS Ruedemann. See Pianodema subeequata perveta. Dalmanella tersa (Sardeson). Orthis tersus Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5, figs. 11-13; Amer. Geol., 19, 1897, p. 100, pi. 5, figs. 8-13. Dalmanella tersa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 204. Richmond (Fernvale): Wilmington, Illinois; Tennessee. Dalmanella testudinaria (Dalman). Orthis testudinaria Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 115, pi. 2, fig. 4. Conrad, Ann. Rep. Geol. Surv. New York, 1839, p. 63. Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 404, fig. 4. Hall, Pal. New York, 1, 1847, p. 117, pi. 32, fig. 1; p. 288, pi. 79, fig. 4. Emmons, Amer. Geol., 1, 382 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dalmanella testudinaria Continued. pt. 2, 1855, p. 194, pi. 9, figs, la-i; pi. 17, fig. 12. Billings, Canadian Nat. and Geol., 1, 1856, p. 40, fig. 1. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 818, fig. 601. Emmons, Man. Geol., 1860, p. 102, fig. 3; p. 99, fig. 88. Hitchcock, Geol. Vermont, 1, 1862, p. 294, fig. 201. Chapman, Canadian Jour., n. s., 7, 1862, p. Ill, fig. 90; ibid., 8, 1863, p. 199, fig. 182. Billings, Geol. Canada, 1863, p. 165, fig. 144. Chapman, Expos. Min. Geol. Canada, 1864, p. 114, fig. 90; p. 171, fig. 182. Safford, Geol. Tennessee, 1869, p. 275, fig. 8. Miller, Cincinnati Quart. Jour. Sci., 1875, p. 20. White, Wheeler's Expl. Surv. west 100th Merid., 4, 1875, p. 72. Shaler, Mem. Geol. Surv. Kentucky, 1, 1876, p. 31. Whitfield, Geol. Wisconsin, 4, 1882, p. 258, pi. 12, figs. 5-7. Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 1-4, 6-13. Chamberlin, Geol. Wisconsin, 1, 1883, p. 155, fig. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 72, pi. 11, fig. 10. Lesley, Geol. Surv. Penn- sylvania, Rep. P4, 1889, p. 536, figs.; p. 537, figs. Sardeson, Amer. Geol., 19, 1897, pp. 92, 95. Orthis striatula Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 394, fig. 3. Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 366, fig. 3. Orthis disparilis Owen (not Conrad), Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, pi. 2B, fig. 23. Dalmanella testudinaria Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 190, 206, 218, 224, pi. 5B, figs. 31-39. Ruedemann, Bull. New York State Mus., 49, 1902, p. 25. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 155, pi. 10, figs. 1, 2; p. 216, pi. 16, figs. 4, 5. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 260, fig. 311a-e. Orthis (Dalmanella) testudinaria Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 2, 1895, p. 121; ibid., 3, pt. 3, 1897, pp. 177, 241. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 156. Middle and Upper Ordovician: Europe and America. Observation. The above miscellaneous citations refer to a variety of forms. DALAMANELLA TESTUDINARIA Var. EMACERATA Cumings. See Dalmanella ei cerata. DALMANELLA TESTUDINARIA FUTILIS Schuchert. See Dalmanella futilis. DALMANELLA TESTUDINARIA IGNOTA Schuchert. See Dalmanella ignota. DALMANELLA TESTUDINARIA var. MEEKI Cumings. See Dalmanella meeki. DALMANELLA TESTUDINARIA var. MULTISECTA Schuchert. See Dalmanella mul tit DALMANELLA TESTUDINARIA PORRECTA Schuchert. See Dalmanella porrecta. Dalmanella wemplei Cleland. Dalmanella (Orthis) wemplei Cleland, Bull. Amer. Pal., 3, 1900, p. 129 (257), pi 17, figs. 10-13. Dalmanella wemplei Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 124, pi. 4, figs. 10-12. Cleland, Bull. Amer. Pal., 4, 1903, p. 19. Canadian (Tribes Hill): Tribes Hill, Fort Hunter, etc., New York; New Jersey. DALMANIA Salter. See Dalmanites Barrande. DALMANIA BICORNIS Hall. See Dalmanites bicornis. DALMANIA BREVICEPS Hall. See Chasmops breviceps. DALMANIA CALLICEPHALA Hall. See Pterygometopus callicephalus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 383 DALMANIA CAUDATA Roemer. See Dalmanites limulurus. DALMANIA DANAE Meek and Worthen. See Dalmanites danae. DALMANIA LIMULURUS Lincklaen. See Dalmanites limulurus. DALMANIA LOGANI Hall. See Dalmanites logani Hall. DALMANIA META Hall. See Pterygometopus meta. DALMANIA VERRUCOSA Hall. See Dalmanites verrucosus. DALMANIA VIGILANS Hall. See Dalmanites vigilans and D. halli. DALMANITES Barrande. Genotype: Trilobus caudatus Bronn. Dalmania Emmrich, Zur. Naturg. d. Tril., 1844, p. 15; Neues Jahrb. f. Min., etc., 1845, p. 40. Salter, Mem. Geol. Surv. Great Britain, 2, pt. 1, 1848, p. 336. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du Centre Boheme, 1, 1852, p. 528. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 501. Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 256. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7, ser. 30, 1881, p. 61. Dalmanites Barrande, Syst. Sil. du Centre, Boheme, 1, 1852, p. 934. Chapman, Canadian Jour., n. s., 8, 1863, p. 30; Expos. Min. Geol. Canada, 1864, p. 138. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 367. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 142. Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 191. Packard, Amer. Nat., 14, 1880, p. 504. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 337. Zittel, Handb. Pal., 2, 1885, p. 615. Clarke, Jour. Morph., 2, 1888, p. 254. Hall and Clarke, Pal. New York, 7, 1888, p. 29. Miller, N. A. Geol. Pal., 1889, p. 542. Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 733. Beecher, Amer. Geol., 16, 1895, pp. 167, 174, 178. (Ehlert, Bull. Soc. Geol. France, 3d ser., 24, 1896, p. 112, fig. 29-31. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 104, 184, pi. 3, figs. 5-8, 29; Zittel- Eastman Textb. Pal., 1, 1900, p. 637. Grabau, Bull. New York State Mus., 45, 1901, p. 223; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 223. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 27, 52. Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 157. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1051. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 324. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 726. DALMANITES ARCHATES Billings. See Pterygometopus achates. Dalmanites arkansanus Van Ingen. Dalmanites (Synphoria) arkansanus Van Ingen, School of Mines Quart., 23, 1901, p. 69, figs. 20-22, pi. figs. 33-37. Dalmanites arkansanus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 278, pi. 24, fig. 5. Niagaran: St. Clair Springs, Independence County, Arkansas (St. Clair); near Lemont and Romeo, Illinois (Racine). Dalmanites aspinosus Weller. Dalmanites aspinosa Weller, Pal. New Jersey, 3, 1903, p. 252, pi. 22, fig. 1. Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 499, pi. 91, fig. 16. Helderbergian: Two miles south Tristates, New York (Decker Ferry); Devil's Backbone, near Cumberland and Cash Valley, Maryland (Keyser). Dalmanites bebryx Billings. Dalmanites Bebryx Billings, Canadian Nat. Geol., 5, 1860, p. 61, fig. 8; Geol. Canada, Geol. Surv. Canada, 1863, p. 187, fig. 185. Trenton: Ottawa, Ontario. 384 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dalmanites bicornis (Hall). Dalmania bicornis Hall, 28th Rep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 33, fig. 18, 1877. Dalmanites bicornis Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 196, pi. 33, fig. 18; llth Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 342, pi. 35, fig. 18. Niagaran (Waldron): Waldron, Indiana; Tennessee. DALMANITES BREVICEPS Miller. See Chasmops breviceps. DALMANITES CALLICEPHALUS Billings. See Pterygometopus callicephalus. DALMANITES CARLEYI Meek. See Pterygometopus carleyi. DALMANITES CARLEYI ROGERSENSIS Foerste. See Pterygometopus carleyi rogersensis. Dalmanites danae (Meek and Worthen). Dalmania Danae Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 264 Dalmanites danae Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 363, pi. 6, figs, la-lf. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 325. Dalmanites danai Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 106, pi. 6, figs. 16, 17. Upper Medinan (Edgewood): Near Thebes, Illinois; Edgewood and Louisiana, Missouri. DALMANITES EBORACEUS Miller. See Pterygometopus eboraceus. DALMANITES (PTERYGOMETOPUS) GOODRIDGII Schuchert. See Pterygometopus good- ridgii. Dalmanites halli Weller. Dalmania vigilans Hall (not Hall, 1862), 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 33, figs. 1-4. Dalmanites vigilans Hall, ibid., mus. ed., 1879, p. 193, pi. 33, figs. 1-4; llth Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 339, pi. 35, figs. 1-4; pi. 33, fig. 9. Dalmanites halli Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 195. Niagaran (Waldron): Waldron, Indiana. Dalmanites illinoisensis Weller. Dalmanites illinoiseneis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., pt. 2, 1907, p. 275, pi. 25, figs. 1-2. Niagaran (Racine): Joliet, Bonfield, etc., Illinois. DALMANITES INTERMEDIUS Walcott. See Pterygometopus intermedius. Dalmanites keyserensis Swartz. Dalmanites keyserensis Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 499, pi. 91, figs. 8, 9. Helderbergian (Keyser): Tonoloway, Maryland. Dalmanites Imiulurus (Green). Asaphus limulurus Green, Mon. Tril. N. A. 1832, p. 48. Harlan, Trans. Geol. Soc. Pennsylvania, 1, pt. 1, 1834, p. 101. Castelnau, Essai Syst. Sil. TAmerique Septent, 1843, p. 18, pi. 4, fig. 1. Hall, Geol. New York, pt. 4, 1843, p. 101, figs. 1-2; tab. org. rem., 10, figs. 1-2. Owen, Amer. Jour. Sci. Arts, 46, 1845, pp. 309-310, figs. 1, 2. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 385 Dalmanites llmulurus Continued. Phacops limuluruB Hall, Pal. New York, 2, 1852, p. 303, pi. 67, figs. 1-8. Bill- ings, Can. Nat. Geol., 1, 1856, p. 57, pi. 1, fig. 7. Dalmania limulunis Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 8, figs. 2, 3. Hall, Pal. New York, 3, 1859, p. 357. Dalmanites limulurus Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 320, fig. 340. Chapman, Canadian Jour., n. s., 8, 1863, p. 31, fig. 145, p. 212, fig. 221; Expos. Min. Geol. Canada, 1864, p. 138, fig. 145; p. 184, fig. 221. Miller, N. A. Geol. Pal., 1889, p. 543, fig. $98. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 188, figs. Clarke, 45th Rep. New York State Mus., 1892, p. 355; llth Rep. State Geol. New York for 1891, 1894, p. 39. Grabau, Bui. New York State Mus., 45, 1901, pp. 223-224, fig. 155; Bull. Buffalo Soc. Nat. Sci., 1901, p. 224, fig. 155. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 325, fig. 1641. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 726, fig. 1408. Asaphus caudatus Green, Mon. Tril. N. A., 1832, p. 50. Eaton, Geol. Textb., 2d ed., 1832, p. 31, pi. 2, fig. 18. Castelnau, Essai Syst. Sil. 1'Ainerique Septent., 1843, p. 19. Dalmania cau data Roemer, Sil. Fauna West Tennessee, 1860, p. 82, pi. 5, fig. 21. Asaphus wetherilli Green, Mon. Tril. N. A., 1832, p. 57. Harlan, Trans. Geol. Soc. Pennsylvania, 1, pt. 1, 1834, p. 101. Asaphus edwardsi Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 19. Asaphus cordieri Casteluau, Essai Syst. Sil. rAmerique Septent., 1843, p. 18, pi. 4, fig. 2. Clinton (Rochester-Osgood): Rochester, Lockport, etc., New York; Ontario; Indiana; Tennessee; Maryland; Pennsylvania. Plastotype.Ca,t. No. 4954, U.S.N.M. Dalmanites limulurus brevicaudatus Foerste. Dalmanites limulurus brevicaudatus Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, 1909, p. 35, pi. 2, figs. 20a-c. Clinton (West Union) : New Martins, Lewis County, Kentucky. Dalmanites logani (Hall). Dalmania logani Hall, Canadian Nat. Geol., 5, 1860, p. 156. Dawson, Acadian Geol., Suppl. Chap., 1860, p. 68, fig. 64; ibid., 2d ed., 1868, p. 608, fig. 215. Silurian (Stonehouse) : Arisaig, Nova Scotia. Dalmanites lunatus Lambert. Dalmanites lunatus Lambert, Bull. Geol. Soc. America, 15, 1904, p. 482, pi. 44, figs. 1-3, 5; Lambert in Hitchcock's Geol. of Littleton, 1905, pp. 33-38. Silurian: Near Littleton, New Hampshire. Cotypes.Czt. No. 50459, U.S.N.M. Dalmanites platycaudatus Weller. Dalmanites platycaudatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 272, pi. 25, figs. 3-5. Niagaran (Racine) : Near Lemont, Illinois. DALMANITES SCHMIDTI Miller. See Pterygometopus schmidti. DALMANITES TROOSTI Safford. See Pterygometopus troosti. Dalmanites verrucosus (Hall). Dalmania verrucosa Hall, 28th Rep. New York State Mus. Nat. Hist.. Mus. ed., 1877, p. 195, pi. 33, figs. 5-17; pi. 34, figs. 13-15. 84243 Bull< 9215 25 386 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dalmanltes Terrucosus Continued. Dalmanites verrucosa Hall, Trans. Albany Inst., 4, 1864, p. 218; llth Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 341, pi. 35, figs. 5-17; pi. 36, figs. 13-15. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 191, figs. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 280, pi. 25, figs. 6-7. Niagaran: Waldron, Indiana; Tennessee (Waldron); Bonfield, and Jersey County, Illinois. Dalmanltes vigilans Hall. Dalmanites vigilans Hall, Rep. Prog. Geol. Surv. Wisconsin, 1861, p. 51. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 276, pi. 24, figs. 1-4. Dalmania vigilans Hall, Adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1862, p. 31; Geol. Surv. Wisconsin, 1, 1862, p. 433, figs. 3-4; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 335, figs. 1-2; p. 375, pi. 21, figs. 16-18; rev. ed., 1870, p. 426, figs. 13-14, pi. 21, figs. 16-18. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Dalmanites (Synphoria) vigilans Van Ingen, School of Mines Quart., 23, 1901, p. 67, pi., figs. 28-32. Kindle, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 485, pi. 23, figs. 4-7; pi. 24, fig. 20. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 325. Dalmanites (Odontochile) vigilans Clarke and Ruedemann, Bull. New Yc State Mus., 65, 1903, p. 699 (gen. ref.). Niagaran: Waukesha, Wauwatosa, etc., Wisconsin; Anderson and Pendlet Indiana; Joliet and Lemont, Illinois; St. Clair Springs, Independence County, Arkansas. DALMANITES VIGILANS Hall (1877). See Dalmanites halli. Dalmanites werthnerl Foerste. Dalmanites werthneri Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 116; 2, 1887, p. 101, pi. 8, figs. 22, 22a, 23-25; Geol. Surv. Ohio, 7, 1895, p. 530, 27, figs. 22, 22a, 23-25. Upper Medinan (Brassfield) : Near Dayton, Ohio. Fork ?ton, mty, 116; , DANIA Edwards and Hainie. Genotype: D. huronica Edwards and Haime. Dania Edwards and Haime, Compt. Rend, de PAcad. Sci., 29, 1849, p. 261; Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 154, 275. Pictet, Traite de Pal., 2d ed., 1857, p. 443. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 280. Nicholson, Tab. Corals Pal. Period, 1879, p. 327. Zittel, Handb. Pal., 1, 1880, p. 617. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 461. Miller, N. A. Geol. Pal., 1889, p. 184. Dania huronica Edwards and Haime. Dania huronica Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. Hist. Nat., 5), 1851, p. 275, pi. 18, fig. 2, 2a, 2b. Milne Edwards, Hist. Nat. d. Corall., 3, 1860, p. 281. Roemer, Leth. geog., Leth. Pal., 1883, p. 461, fig. 112. Niagaran: Drummond Island, Lake Huron. DAWSONIA Nicholson. Genotype: D. campanulata Nicholson. *' Ovarian vesicles of graptolites " Nicholson, Mon. British Grapt., pt. 1, 1872, p. 71. Dawsonla Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 139. Nicholson and Lyddecker, Man. Pal., 1, 1889, p. 214. Miller, N. A. Geol. Pal., 1889, p. 184. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 162. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 738-740; ibi< Mem. 11, pt. 2, 1908, p. 484. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 387 Dawsonia acuminala Nicholson. Dawsonia actiminata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1878, p. 140, fig. 3a, a'. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485, fig. 466. Lower Ordovician: Point Levis, Quebec (Levis); Scotland (Llandeilo). DAWSONIA CAMPANULATA Ruedemann. See Azygograptus? simplex. Dawsonia monodon Gurley. Dawsonia monodon Gurley, Jour. Geol., 4, 1896, p. 88, pi. 5, fig. 4. Ruedemann, New York State Pal. Ann. Rep., 1902, pp. 554, 556; Mem. New York State Mus., 7, pt. 1, Addendum, 1904, pp. 741, 742, pi. 17, figs. 21-26, fig. 105. Canadian: Point Levis, Quebec (Levis, Didymograptus zone); Deepkill, Rens- selaer County, New York (Deepkill, Tetragraptus zone). DAWSONIA ROTUNDA Nicholson. See Acrothele rotunda. DAWSONIA SILIQUARIA James. See Lockeia siliquaria. Dawsonia tenuistriata Nicholson. Dawsonia tenuistriata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 141, fig. 3c, c', d, d'. Canadian (Levis): Point Levis, Quebec. Observation. The specimens figured by Nicholson are very probably small brachiopods. awsonia trldens Gurley. Dawsonia tridens Gurley, Jour. Geol., 4; 1896, p. 88, pi. 5, fig. 5. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 556; Mem. New York State Mus., 7, pt. 1, Addendum, 1904, p. 741, pi. 17, figs. 18-20. Canadian: Point Levis, Quebec (Levis, Tetragraptus zone); Deepkill, Rensselaer County, New York (Deepkill, Tetragraptus zone). AWSONOCERAS Hyatt. Genotype: Orthoceras annulatum Sowerby. Dawsonoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 276; Zittel- Eastman Textb. Pal., 1, 1900, p. 518; 2d ed., 1913, p. 599. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 82. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 58. awsonoceras annulatum (Sowerby). Orthoceras annulatum Sowerby, Min. Conch., 2, 1818, p. 77; Eaton, Geol. Textb., 2d ed., 1832, p. 29, pi. 3, fig. 24. Hall, Nat. Hist. New York, Geol., 4, 1843, p. 110, fig. 1; tab. ill. 17, fig. 1; Pal. New York, 2, 1852, p. 96, pi. 29, fig. 3. Marcou, Geol. Map United States and British Provinces, etc., 1853, p. 27, pi. 2, fig. 1. Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 78, pi. 5, figs. 18a, 18b. Billings, Cat. Sil. FOBS. Anticosti, Geol. Surv. Canada, 1866, p. 83. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (Extras, 1865), p. 351, pi. 20 (11), figs. 4-6 (see expl. of pis., p. 393); rev. ed., 1870, p. 411, pi. 20, figs. 4-6; pi. 24, figs. 2-4, p. 433. Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1895, p. 147, pi. 9, fig. 1. Whitfield, Geol. Wisconsin, 4, 1882, p. 298, pi. 19, fig. 1. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 324. White, ibid., 1882, p. 358, pi. 38, fig. 1. Chamberlin, Geol. Wisconsin, 1, 1883, p. 194. Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, 1884, pt. 1, p. 38. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 542, figs. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 215, fig. 147; Bull. New York State Mus., 45, 1901, p. 215, fig. 147. 388 BULLETIN n, UNITED STATES NATIONAL MUSEUM. Dawsonoceras annulatum Continued. Orthoceras (Dawsonoceras) cf. annulatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 472, pi. 19, figs. 3, 4. Orthoceras (Cycloceras) annulatum Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 282, pi. 8, fig. 5. Dawsonoceras annulatum Grabau and Shimer, N. A. Index Fossils. 2, 1910, p. 58, figs. 1260, 1261. Orthoceras annulatum var. americanum Foord, Cat. Fossil Ceph. British Mus., 1888, p. 56. Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 2, 1895, p. 101. Orthoceras (Dawsonoceras) annulatum var. americanum Kindle and Breger 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 472. Dawsonoceras annulatum var. americanum Clarke and Ruedemann, New York State Mus., 5, 1903, p. 81, pi. 10, figs. 9-21; pi. 11, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 58. Grabau, Michigan Geol. Surv., Geol. (1), 1909, p. 196, pi. 28, fig. 8; pi. 29, fig. 1. Orthoceras nodocostum McChesney, Desc. New Fossils, 1861, p. 94; Plates Illust. N. Sp. Fossils, 1865, pi. 9, fig. 5. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 101. Orthoceras nodocostatum McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 53, pi. 9, fig. 5. Orthoceras Laphami McChesney, Desc. New Fossils, 1861, p. 91. Orthoceras bartonense Spencer, Bull. Missouri State Mus., 1, 1884, p. 60, pi. 7, fig. 7; Trans. Acad. Sci. St. Louis, 4, 1884, p. 609, pi. 7, fig. 7. Clarke and Ruedemann, Mem. New York State Mus., 5, p. 83. Orthoceras undulatum Hall, Pal. New York, 2, 1852, p. 293, pi. 64, fig. la-f ; pi. 65, fig. 3. Silurian: England; Gotland. Niagaran: New York; Canada; Ohio; Indiana; Tennessee; Wisconsin; etc. Upper Monroan: Michigan and Ontario. Observation. Several species may be included in the above synonymy. Dawsonoceras hammelli (Foerste). Orthoceras (Dawsonoceras) hammelli Foerste, Bull. Sci. Lab.. Denison Univ., 16, 1910, p. 74, pi. 1, fig. 4. Richmond: Dog Falls and Madison, Indiana; Jefferson County. Kentucky (Whitewater-Saluda); West Milton, Ohio (Elkhorn). Dawsonoceras tenuilineatum Savage. Dawsonoceras tenuilineatum Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 119, pi. 7, fig. 22. Upper Medinan: Pike County, Missouri (Edge wood); Will County, Illinois (Chan- nahon). DEIPHON Barrande. Genotype: D. forbesi Barrande. Deiphon Barrande, Neues Jahrb. Min., etc., 1850, p. 779. Pictet, Traite" de Pal., 2d ed., 2, 1854, p. 522. Zittel, Handb. Pal., 2, 1885, p. 618. Koken, Die Leitfossilien, Leipzig, 1896, p. 33. Reed, Geol. Mag., dec. 4, 5, 1898, p. 211. Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 636. Raymond, ibid., 2d ed., 1913, p. 725. Deiphon americanus Weller. Deiphon americanua Weller, Bull. Chicago Acad. Sci., Nat, Hist, Surv., 4, 1907, p. 268, pi. 24, fig. 14. Niagaran (Racine): Joliet, Romeo, etc., Illinois. Deiphon forbesi Barrande. Deiphon forbesii Barrande, Haidinger's Berichte, 1850, p. 6. Salter, Mon. British Tril., 1865, p. 88, pi. 7, figs. 1-12. Van Ingen, School of Mines Quart., 1901, p. 35. BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 389 Deiphon forbesl Continued. Sphserexochus pisurn Foerste. Geol. Surv. Ohio, 7, 1895, p. 528, pi. 37A, figs. 14a-14b. Deiphon piaum Foerste, Amer. Jour. Sci., 4th ser., 18, 1904, p. 340. Silurian: Bohemia and England; Dayton, Ohio (Brassfield); Lockport, New York (Rochester); Arkansas (St. Clair). DEIPHON PISUM Foerste. See Deiphon forbesi. DEIROCERAS Hyatt. See Actinoeeras subgenus Deiroceras. DEKATELLA Ulrich. Genotype: Dekayella obscura Ulrich Dekayella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155; ibid., 6, 1883. p. 90. Miller, N. A. Geol. Pal., 1889, p. 184. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 372; Geol. Minnesota, 3, 1893, p. 269; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 273. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 589. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31. Cumings, Amer. Geol., 29, 1902, p. 200. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, pp. 24, 27. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 205; Zittel-Eastman Textb. Pal., 1913, p. 333. IKAYELLA CYSTATA Cumings. See Heterotrypa frondosa. >kayella foliacea Ulrich and Bassler. Dekayella foliacea Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 28, pi. 7, figs. 10-12. Trenton (Cynthiana): Lexington, Kentucky. Holotype.Gzt. No. 43187, U.S.N.M. )kayella obscura Ulrich. Dekayella obscura Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 89, pi. 1, figs. 4-4b; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 454 (p. 274). Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 180-182 (p. 589). Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132. Bassler, Zittel- Eastman Textb. Pal., 1913, p. 333, fig. 480. Dekayia obscura Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 816, pi. 14, figs. 3, 3a. Eden (McMicken): Cincinnati, Ohio, and vicinity. Cotypes.Czt. No. 43659, U.S.N.M. DEKAYELLA PERFRONDOSA PROLIFICA Cumings. See Heterotrypa subramosa pro- lifica. Dekayella praenuntla Ulrich. Dekayella pramuntia Ulrich, Geol. Minnesota, 3, 1893, p. 270, pi. 23, figs. 32^7. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 177-179 (p. 589). Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132, figs. 188b, 190b. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 205, 206, fig. 111. Black River (Decorah): Minneapolis, etc., Minnesota; Iowa. Middle Ordovician (Wassalem and Kuckers): Esthonia, Russia. Holotype.C&t. No. 43528, U.S.N.M. Dekayella praenuntia echinata Ulrich. Dekayella prsenuntia var. echinata Ulrich, Geol. Minnesota, 3, 1893, p. 271, pi. 23, figs. 32-38. Black River (Decorah): Near Fountain, Minneapolis and St. Paul, Minnesota. . Cat. No. 43530, U.S.N.M. 390 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dekayella prrenuntia multipora Ulrich. Dekayella pnenuntia var. multipora Ulrich, Geol. Minnesota, 3, 1893, p. 272, pi. 23, figs. 44-47. Black River (Decorah) : Minneapolis, St. Paul, and Goodhue and Fillmore Counties, Minnesota. Holotype.Czt. No. 43531, U.S.N.M. Dekayella praenuntia naevigera Ulrich. Dekayella prsemmtia var. nsevigera Ulrich, Geol. Minnesota, 3, 1893, p. 271. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207. Black River (Decorah) : Fillmore County, Minnesota. Middle Ordovician (Wassalem) : Esthonia, Russia. Holotype.Czt. No. 43532, U.S.N.M. Dekayella praenuntia simplex Ulrich. Dekayella prsemmtia var. simplex Ulrich, Geol. Minnesota, 3, 1893, p. 271, pi. 23, figs. 39-42. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207, fig. 111. Black River (Decorah) : Minneapolis and St. Paul, Minnesota Middle Ordovician (Wassalem) : Esthonia, Russia. Cotypes.G*t. No. 43529, U.S.N.M. DEKAYELLA ROBUSTA Foord. See Dekayella ulrichi. Dekayella singularis (Ulrich). Heterotrypa singularis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 415, pi. 37, figs. 3-3e; Geol. Minnesota, 3, 1893, p. 268. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, fig. 147 (p. 579). Monticulipora singularis J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, P- 77. Dekayella singularis Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904, p. 27 (gen. ref.). Richmond (Fernvale): Wilmington, Illinois; Tennessee; Wisconsin. Sections of cotype. Cat. No. 43750, U.S.N.M. Dekayella trentonensls (Ulrich). Dekayia trentonensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1883, p. 151, pi. 6, figs. 6, 6a; Geol. Minnesota, 3, 1893, p. 274. Dekayella trentonensis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 227. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 42, pi. 1, fig. 3. Trenton: Burgin and Frankfort, Kentucky (Wilmore); St. Paul and Cannon Falls, Minnesota (Prosser). HolotypeCat. No. 43660, U.S.N.M. Dekayella ulrichi (Nicholson). Chaetetes Fletcheri (not Milne-Edwards and Haime) Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 504, pi. 29, figs. 6, 6a; Pal. Ohio, 2, 1875, p. 197, pi. 21, figs. 7, 7a; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 90, pi. 5, fig. 14. Quenstedt, Rcehren- und Sternkorallen, 1891, p. 83, pi. 146, fig. 27. Monticulipora (Heterotrypa) Ulrichii Nicholson, Genus Monticulipora, 1881, p. 131, fig. 22. Monticulipora ulrichii Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 249, pi. 11, fig. 10. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 179. James, ibid., 16, 1894, p. 201. Dekayella ulrichi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1883, pp. 91, 153. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 227. Cumings, Amer. Geol., 28, 1901, p. 374. Nickles, Bull. Kentucky Geol. Surv., 5, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 391 Dekayella ulrichi Continued. 1905, p. 47, pi. 2, fig. 4. Bossier, Proc. U. S. Nat. Mus., 30, 1906, p. 35, pi. 2, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132. Dekayia ulrichi Cumings, Amer. Geol., 29, 1902, p. 13, pi. 9, fig. 1; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 824, pi. 14, figs. 4, 4b; pi. 28, fig. 7. Dekayella robustaFoord, Ann. Mag. Nat. Hist. (5), 13, 1884, p. 341, pi. 12, figs. 2-2d. Dekayella ulrichi-robusta Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 228. Dekayia ulrichi-robusta Cumings, Amer. Geol., 29, 1902, p. 212, pi. 9, fig. 4, pi. 10, fig. 9; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 826, pi. 14, fig. 2, 2b; pi. 27, fig. 22. Monticulipora ohioensis James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 183; ibid., 16, 1894, p. 207. Eden: Cincinnati, Ohio, and vicinity. DEKAYELLA ULRICHI var. ROBUSTA Nickles and Bassler. See Dekayella ulrichi. DEKAYIA Milne-Edwards and Haime. Genotype: D. aspera Milne-Edwards and Haime. Dekayia Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 277 Pictet, Traite de Pal., 2d ed., 1857, p. 443. Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 283. Nicholson, Pal. Tab. Corals, 1879, p. 291; Zittel Handb. Pal., 1, 1880, p. 615; Genus Monticulipora, 1881, p. 98. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1832, p. 155; ibid., 6, 1883, p. 148. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 479. Waagen and Wentzel, Pal. Indica (13), 1886, p. 874. James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 28. Miller, N. A. Geol. Pal., 1889, p. 184. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 371, 415. Rominger, Amer. Geol., 6, 1890, pp. 105-106-114. Ulrich, Geol. Minnesota, 3, 1893, p. 274; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 273. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 115. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 578. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31. Cumings, Amer. Geol., 29, 1902, p. 197. Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904, p. 24. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1907, p. 743. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 133. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333. Dekayia appressa Ulrich. Dekayia appressa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1883, p. 152, pi. 6, figs. 7-7b. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 809, pi. 13, fig. 3. Maysville (Corryville): Cincinnati, Ohio, and vicinity. Holotype.M. No. 43655, U.S.N.M. Dekayia aspera Milne-Edwards and Haime. Dekayia aspera Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 278, pi. 16, figs. 2, 2a. Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 283. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 148, pi. 6, 5; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 455, p. 274. Miller, N. A. Geol. Pal., 1889, p. 184, fig. 165. Cumings, Amer. Geol., 29, 1902. p. 214, pi. 9, fig. 10; pi. 10, fig. 10. Nickles, Bull. Kentucky Geol. Surv., 5, p. 54, pi. 3, fig. 4. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 133, fig. 190c. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 810, pi. 13, figs. 5-5b; pi. 27, fig. 20. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333, fig. 481. Monticulipora (Dekayia) aspera James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 28. James, ibid., 18, 1896, p. 116. 392 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dekayla aspera Continued. Chsetetes attritus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 503, pi. 30, fig. 4, 4a; Pal. Ohio, 2, 1875, p. 194, pi. 21, fig. 4. Buell, Trans. Wis- consin Acad. Sci., 5, 1882, p. 191. Monticulipora (Chsetetes) attritus Chamberlin, Geol. Wisconsin, 1, 1883, p. 172, fig. Dekayia attrita Nicholson, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 93, pi. 5, figs. 12, 12a; Pal. Tabulate Corals, 1879, p. 298, pi. 15, figs. 1-lc. Maysville (Fairmount): Cincinnati, Ohio, and vicinity; Nashville and Colum- bia, Tennessee. DEKAYIA ATTRITA Nicholson. See Dekayia aspera. DEKAYIA FRONDOSA Cumings. See Heterotrypa frondosa. DEKAYIA FRONDOSA var. CYSTATA Cumings.- See Heterotrypa frondosa. DEKAYIA INFLECTA Cumings. See Heterotrypa inflecta. Dekayia maculata James. Dekayia maculata James, Paleontologist, No. 5, 1881, p. 37. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 35, pi. 2, figs. 13, 14. Monticulipora (Dekayia) maculata J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 116, fig. 11. Eden (McMicken): Loveland and Cincinnati, Ohio, and vicinity. Dekayia magna Cumings. Dekayia magna Cumings, Amer. Geol., 28, 1901, p. 375, pi. 34, figs. 1-6; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 815, pi. 13, figs. 6, 6a; pi. 28, fig. 8. Maysville (Bellevue): Vevay, etc., Indiana; Cincinnati, Ohio, and vicinity. Dekayia multispinosa Ulrich. Dekayia multispinosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 154, pi. 6, figs. 8, 8a. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Holotype.V&i. No. 43656, U.S.N.M. DEKAYIA OBSCURA Cumings. See Dekayella obscura. DEKAYIA PAUPERA Ulrich. See Heterotrypa paupera. Dekayia pelliculata Ulrich. Dekayia pelliculata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 150, pi. 6, figs. 9, 9a. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 818, pi. 13, figs. 4, 4a; pi. 28, fig. 5. Monticulipora (Dekayia) pelliculata J. F. James, Jour. Cincinnati Soc. Nat. Hist. 18, 1896, p. 117. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Section of holotype.Cat. No. 43657, U.S.N.M. DEKAYIA PERFRONDOSA Cumings. See Heterotrypa frondosa. DEKAYIA PERFRONDOSA-SUBPULCHELLA Cumings. See Heterotrypa subpulchella. DEKAYIA PROLIFICA Cumings. See Heterotrypa subramosa prolifica. DEKAYIA SUBFRONDOSA Cumings. See Heterotrypa subfrondosa. DEKAYIA SUBPULCHELLA Cumings. See Heterotrypa subpulchella. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 393 DEKAYIA SUBRAMOSA Cumings. See Heterotrypa subramosa. DEKAYIA TRENTONENSIS Ulrich. See Dekayella trentonensis. DEKAYIA ULRICHI Cumings. See Dekayella ulrichi. DEKAYIA ULRICHI-EXPANSA Cumings. See Heterotrypa lobata. DEKAYIA ULRICHI-LOBATA Cumings. See Heterotrypa lobata. DEKAYIA ULRICHI var. ROBUSTA Nickles and Bassler. See Dekayella ulrichi. DELTACRINUS Ulrich. Genotype: Cheirocrinus clarus Hall. Deltacrinua Ulrich, 14th Rep. Geol. Surv. Minnesota, 1886, p. 109, fig. 2. Wach- emuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 201 (Rev. Pal., 3, sec. 2, p. 277). Miller, N. A. Geol. Pal., 1889, p. 237. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 148. Springer, Zittel-Eastman Textb. Pal., 2d. ed., 1913, p. 213. Calceocrinus (part) Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, footnote, pi. 9; ibid., Mus. ed., 1879, p. 146, figs. 1, 2; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 281. Deltacrinus alien! (Rowley). Calceocrinus alleni Rowley, Amer. Geol., 34, 1904, p. 275, pi. 16, figs. 30-33. Upper Medinan (Edgewood): Watson Station, Pike County, Missouri. Deltacrinus contractus (Ringueberg). Calceocrinus contractus Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 404, pi. 10, fig. 12. Deltacrinus contractus Kindle, U. S. Geol. Surv., Geol. Atlas, U. S., folio 190, 1913, pp. 1-25, pis. Niagaran (Lockport-Gasport member): Lockport, New York. Deltacrinus halli (Ringueberg). Calceocrinus sp. Hall, Pal. New York, 2, 1847, p. 352, pi. 85, figs, 5, 6. Calceocrinus halli Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 403, pi. 10, fig. 9. Clinton (Rochester): Middleport, New York. Observation. Hall based the genus Calceocrinus upon the specimen figured in 1847, but not named specifically. Deltacrinus indianensis (Miller). Calceocrinus indianensis Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 645, pi. 6, fig. 37. (Adv. sheets, 1891, p. 35.) Niagaran (Laurel) : St. Paul, Indiana. Deltacrinus stigmatus (Hall). Cheirocrinus stigmatus Hall, Trans. Albany Inst., 4, 1863, p. 225. (Abstract, p. 31.) Calceocrinus stigmatus Shumard, Trans. Acad. Sci. St. Louis (Cat. Pal. Foss.), 2, 1866, p. 358. Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 19, figs. 9-11; mus. ed., 1879, p. 147, pi. 19, figs. 9-11; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 281, pi. 19, figs. 9-11. Deltacrinus stigmatus Ulrich, 14th Ann. Hep. Geol. Nat. Hist. Minnesota, 1886, p. Ill, 113 (gen. ref.). Niagaran (Waldron): Waldron, Indiana. 394 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Deltacrinus tunicatus (Hall). Calceocrinus tunicatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 147, fig. 1; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 281, fig. 1. Niagaran (Waldron): Waldron, Indiana. Deltacrinus typus (Ringueberg). Calceocrinus typus Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 402, pi. 10, fig. 8. Clinton (Rochester): Lockport, New York. DELTHYRIS ACUTILIRATA Conrad. See Platystrophia acutilirata. DELTHYRIS BIALVEATA Conrad. See Spirifer (Eospirifer) radiatus. DELTHYRIS BRACHYNOTA Hall. See Platystrophia biforata. DELTHYRIS CRISPA Dalman. See Spirifer (Delthyris) crispus. DELTHYRIS DECEMPLICATUS Hall. See Spirifer (Delthyris) sulcata. DELTHYRIS EXPANSUS Emmons. See Pterotheca expansa. DELTHYRIS LYNX Hall. See Platystrophia biforata and P. lynx. DELTHYRIS NIAGARENSIS Owen. See Spirifer (Delthyris) niagarensis. DELTHYRIS PLICATUS Owen. See Spirifer (Delthyris) vanuxemi. DELTHYRIS RADIATA Billings. See Spirifer (Eospirifer) radiatus. DELTHYRIS RUGATINA Conrad. See Spirifer (Eospirifer) sulcata. DELTHYRIS? RUGICOSTA Schuchert. See Spirifer (Delthyris) rugicosta. DELTHYRIS SINUATUS Hall. See Bilobites bilobus. DELTHYRIS STAMINEA Hall. See Spirifer (Delthyris) crispus. DELTHYRIS SULCATA Hisinger. See Spirifer (Delthyris) sulcata. DELTOCERAS Hyatt. Genotype: D. planum Hyatt. Deltoceras Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 449. Miller, N. A. Geol. Pal., 2d App., 1897, p. 772. Ruedemann, Bull. New York State Mus., 90, 1906, p. 480. Deltoceras planum Hyatt. Deltoceras planum Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 450. Canadian (Quebec): Port au Choix, Newfoundland. Deltoceras vaningeni Ruedemann. Deltoceras vaningeni Ruedemann, Bull. New York State Mus., 90, 1906, p. 480 pis. 25-28, figs. 39-41. Chazyan (Crown Point): Valcour Island, New York. DEMIRASTRITES URCEOLUS Eisel. See Monograptus urceolus. DENDROCLONELLA Rauff. Genotype: D. rugosa Banff. Dendroclonella Rauff, Palaeontographica, 41, 1895, p. 252. Dendroclonella rugosa Rauff. Dendroclonella rugosa Rauff, Palaeontographica, 41, 1895, p. 252, pi. 18, figs. 3-6; pi. 24, fig. 1. Niagaran (Brownsport) : Perry County, Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 395 DENDROCRINUS Hall. Genotype: D. longidactylus Hall. Dendrocrinus Hall, Pal. New York, 2, 1852, p. 193. Pictet, Traite de Pal., 2d ec!., 4, 1857, p. 317. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 264; Geol. Surv. Canada, dec. 4, 1859, p. 35, fig. 14. Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 208. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 20. Zittel, Handb. Pal., 1, 1879, p. 361. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, pp. 285, 289, 298 (Rev. Pal.,pt. 1, pp. 62, 66, 75); ibid., 1885, pp. 115, 116; ibid., 1890, pp. 380-384; Amer. Jour. Sci., 3d ser., 26, 1883, p. 376, fig. 5. Miller, N. A. Geol. Pal., 1889, p. 238, fig. 282. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 15; pi. 15, fig. 4; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 179, fig. 96. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 155. Zittel, Grundzuge Pal., 1, 1910, p. 132. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 711. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 504. Springer, Geol. Surv. Canada, Mem. 15P, 1911, p. 29; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 215. Dendrocrinus acutidactylus Billings. Dendrocrinus acutidactylus Billings, Geol. Surv. Canada, Rep. Progr., 1853-1856, 1857, p. 266; Geol. Surv. Canada, dec. 4, 1859, p. 37, pi. 3, figs. 2a, b. Trenton (Curdsville) : Montreal, Quebec; Mercer County, Kentucky. Dendrocrinus alternatus (Hall). Poteriocrinus alternatus Hall, Pal. New York, 1, 1847, pp. 83, 316, pi. 28, figs, la-f. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 224, fig. 77. Cyathocrinus? alternatus Hall, Pal. New York, 1, 1847, p. 316. Homocrinus alternatus Hall, Pal. New York, 2, 1852, p. 185. Dendrocrinus alternatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76). Trenton: Turin, Lowville, Middleville, etc., New York. DENDROCRINUS ANCILLA Hall. See Homocrinus ancilla. DENDROCRINUS ANGULATUS Billings. See Palseocrinus angulatus. Dendrocrinus angustatus (Meek and Worthen). Homocrinus angustatus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1870, p. 30; Geol. Surv. Illinois, 6, 1875, p. 492, pi. 23, fig. 8. Dendrocrinus angustatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76). Richmond (Maquoketa): Mount Carroll, Illinois. Dendrocrinus caduceus (Hall). Poteriocrinus (Dendrocrinus) caduceus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 208, pi. 5, figs. 7, 8 (adv. sheets 1866, p. 3; 1871, pi. 1, figs. 7, 8). Poteriocrinites (Dendrocrinus) caduceus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 26, pi. 3 bis, figs, la-d. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 738, figs. Dendrocrinus caduceus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76); ibid., 1890, p. 392, pi. 10, fig. 11. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505, fig. 1819. Richmond ( Waynesville-Liberty) : Near Lebanon, etc., Ohio. Dendrocrinus casei Meek. Pentacrinite Christy, Letters on Geology, 1848, pi. 2. Dendrocrinus Casei Meek, Amer. Jour. Sci., 3d ser., 2, 1871, p. 295. Foerste, Amer. Geol., 12, 1893, pp. 270, 340. Bather, Geol. Mag., dec. 4, 6, 1899, p. 35, 396 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dendrocrinus case! Continued. fig. 13; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 120, fig. 26, 3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 717, pi. 4, figs. 2, 2b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505. Poteriocrinites (Dendrocrinus) Casei Meek, Geol. Surv. Ohio, 1, pt. 2, 1873, p. 28, pi. 3 bis., figs. 2a-c. Poteriocrinites (Dendrocrinus) caseyi Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 739, fig. Richmond (Whitewater): Richmond, Indiana; Oxford, etc., Ohio. Dendrocrinus celsus Ringueberg. Dendrocrinus celsus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 132, pi. 7, fig. 3. Clinton (Rochester) : Lockport, New York. Dendrocrinus cincinnatiensis (Meek). Poteriocrinites (Dendrocrinus) Cincinnatiensis Meek, Proc. Acad. Nat. Sci. Philadelphia, 1871, p. 312; Geol. Surv. Ohio, Pal., 1, 1873, p. 20, pi. 3 bis, figs. 5a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 739, figs. Dendrocrinus Cincinnatiensis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76). Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505, fig. 1818. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. DENDROCRINUS CONJUGANS Billings. See Cupulocrinus conjugans. DENDROCRINUS CURTUS Ulrich. See Merocrinus curtus. DENDROCRINUS CYLINDRICUS Billings. See Cupulocrinus conjugans. Dendrocrinus dyeri (Meek). Poteriocrinites (Dendrocrinus) Dyeri, Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 310; Geol. Surv. Ohio, Pal., 1, 1873, p. 24, pi. 3 bis, figs. 3a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 739, figs. Dendrocrinus Dyeri Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- phia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76). Trenton (Upper): River quarries, Covington, Kentucky. Dendrocrinus erraticus Miller. Dendrocrinus erraticus Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 316, pi. 8, figs. 1, la. Richmond: Drift at Cincinnati, Ohio. Dendrocrinus gracilis (Hall). Poteriocrinus gracilis Hall (not McCoy), Pal. New York, 1, 1847, p. 84, pi. 28, figs. 2a-f. Poteriocrinus subgracilis D'Orbigny, Prodrome Pal., 1, 1849, p. 23. Homocrinus gracilis Hall, Pal. New York, 2, 1852, p. 158. Poteriocrinites gracilis Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 21, footnote. Dendrocrinus gracilis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- phia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76). Trenton: Middleville, New York. Dendrocrinus gregarius Billings. Dendrocrinus gregarius Billings, Geol. Surv. Canada, Rep. Progr. 1853-1856, 1857, p. 265; Geol. Surv. Canada, dec. 4, 1859, p. 36, pi. 3, figs. la-c. Trenton: Ottawa, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 397 DENDROCRINUS HUMILIS Billings. See Cupulocrinus humilis. DENDROCRINUS JEWETTII Billings. See Cupulocrinus jewetti. DENDROCRINUS LATIBRACHIATUS Billings. See Cupulocrinus latibrachiatus. Dendrocrlnus longidactylus Hall. Dendrocrinus longidactylus Hall, Pal. New York, 2, 1852, p. 193, pi. 43, figs, la-k; pi. 42, figs. 7a, b. Pictet, Traite de Pal.,2d ed., 4, 1857, p. 317, pi. 100, fig. 14. Bather, Geol. Mag., dec. 4, 6, 1899, p. 35, fig. 12; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 120, figs. 26, 2. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 29, fig. 1. Clinton (Rochester): Lockport, New York. Deudrocrinus modestus Safford. Dendrocrinus modestus Safford, Geol. Tennessee, 1869, p. 285 (not defined). Stones River (Lebanon): Central basin of Tennessee. Dendrocrinus navigiolum Miller. Dendrocrinus navigiolum Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 235, pi. 7, figs. 5, 5a (6, 6a). Eden (Fulton): First Ward, Cincinnati, Ohio. Dendrocrinus? nodobrachiatus Ringueberg. Dendrocrinus? nodobrachiatus Ringueberg, Annals New York Acad. Sci., 5, 1890, p. 303, pi. 3, fig. .6. Niagaran (Lockport-Gasport member): Lockport, New York. DENDROCRINUS NUCLEUS Hall. See Botryocrinus nucleus. Dendrocrinus oswegoensis Meek and Worthen. Dendrocrinus Oswegoensis Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 333, pi. 4, fig. 4. Miller, N. A. Geol. Pal., 1889, p. 238, fig. 284. Richmond (Maquoketa): Oswego, Kendall County, Illinois. DENDROCRINUS POLYDACTYLUS Wachsmuth and Springer. See Cupulocrinus poly- dactylus. Dendrocrinus posticus (Hall). Poteriocrinus posticus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 209, pi. 5, figs. 5, 6 (extract 1871, pi. 1, figs. 5, 6.). Poteriocrinites (Dendrocrinus) posticus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 22, pi. 3 bis, figs. 4a-c. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 740, figs. Dendrocrinus posticus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879, p. 300 (Rev. Pal., pt. 1, p. 77). Richmond ( Waynesville-Liberty) : Southwestern Ohio. Dendrocrinus proboscidiatus Billings. Dendrocrinus proboscidiatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 267; Geol. Surv. Canada, dec. 4, 1859, p. 38, pi. 3, figs. 3a-c; Ottawa Nat., 1, 1887, p. 53, pi. figs. Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 37, (loc. occ.) Trenton (Curdsville): Montreal, Quebec; Kirkfield, Ontario. Dendrocrinus retractilis Walcott. Dendrocrinus retractilis Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 211, pi. 17, fig. 4. Trenton: Trenton Falls, New York. 398 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dendrocrinus rusticus Billings. Dendrocrinus rusticus Billings, Geol. Surv. Canada, Rep. Prog, for 1853-56, 1857, p. 270; Geol. Surv. Canada, dec. 4, 1859, p. 41, pi. 3, figs. 7a, 7b. Trenton: Ottawa, Ontario. DENDROCRINUS (HOMOCRINUS) SCOPARIUS Wachsmuth and Springer. See Lasiocri- nus scoparius. Dendrocrinus similis Billings. Dendrocrinus similis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857 p. 267; Geol. Surv. Canada, dec. 4, 1859, p. 40. Trenton: Ottawa, Ontario. Dendrocrinus tener Billings. Dendrocrinus tener Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 9. Richmond (Charleton): West End, Anticosti. Observation. Not recognized. Twenhofel reports the specimen as too poor for determination . DENDROCYSTIS Haeckel. See Dendrocystites Barrande. DENDROCYSTITES Barrande. Genotype: D. sedgwicki Barrande ?Syringocrinus Billings, Canadian Org. Rem., dec. 4, 1859, p. 65. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia; 1881, p. 411 (Rev. Pal., pt. 2, p. 237). Miller, N. A. Geol. Pal., 1889, p. 285. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 203. Zittel, Grundzuge Pal., 1, 1910, p. 156. Dendrocystites Barrande, Extraits du Syst. Silur., 1887, p. 219; Syst. Silur. Boheme, 7, p. 142. Jaekel, Zeitschr. deutsch. geol. Gesell., 52, 1901, p. 673. Dendrocystis Haeckel, Amphor.und Cystoid., 1, 1900, p. 47. Delage and Herou- ard, Zool. Concrete, 3, 1904, p. 408. Bather, Roy. Soc. Edinburgh, 49, pt. 2. 1913, p. 371, text figs. 6-9. Dendrocystites? paradoxica (Billings). Syringocrinus paradoxicus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 65, pi. 10, fig. 14. Syringocrinus paradoxus Bather, Treatise on Zool., Echinoderma, 1900, p. 48. Dendrocystis(?) paradoxica Bather, Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913, p. 397, fig. 13. Trenton: Beauport, near Quebec, Canada. Observation. See Bather (op. cit., 1913) for discussion of Syringocrinus and S. paradoxica. DENDROGRAPTUS Hall. Genotype: D. hallianus Prout. Dendrograptus Hall, Geol. Surv. Canada for 1857, Rep. Progr., 1858, p. 143; Rep. Geol. Surv. Wisconsin, 1, 1862, p. 21; Geol. Surv. Canada, dec. 2, p. 126, 127, figs. a,b, c. Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 142. Carruthers, Geol. Mag., 5, 1868, p. 73, 130. Hall, 20th Rep. New York State Cab. Hist, 1868, p. 218; rev. ed., p. 252. Nicholson, Mon. British Grapt., 1872, p. 127.Zittel, Handb. Pal., 1, 1879, p. 289. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 16; Trans. Acad. Sci. St. Louis, 4, 1884, p. 262, 566. Miller, N. A. Geol. Pal., 1889, p. 184. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 151. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 165. Roemer and Freeh, Leth. geog., 1, Theil, Leth. Pal., 1, 3 Lief., 1897, p. 577. Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. xli. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 578, 579. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 26. Ruedemann, Zittel- Eastman Textb., Pal., 2d. ed., 1913, p. 128. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 399 DENDROGRAPTUS ARUNDINACEUS Gurley. See Mastigograptus arundinaceus. DENDROORAPTUS COMPACTUS Walcott. See Callograptus compactus. Dendrograptus dawsonl Spencer. Dendrograptus dawsoni Spencer, Canadian Nat., 10, 1882, p. 165; Trans. Acad. Sci. St. Louis, 4, 1884, p. 568, pi. 1, fig. 5; Bull. Mus. Univ. Missouri, 1, 1884, p. 18, pi. 1, fig. 5. Gurley, Jour. Geol., 4, 1896, pp. 94, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 6, fig. 1. Niagaran dolomite: Hamilton, Ontario. DENDROGRAPTUS? (CALLOGRAPTUS?) diffusus Hall. See Callograptus diffusua. Dendrograptus divergens Hall. Dendrograptus divergens Hall, Geol Surv. Canada, dec. 2, 1865, p. 129, pi. 17, figs. 3, 4. Hoplunson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 664, pi. 36, figs. 6a, b. Canadian (Levis, Didymograptus zone): Point Levis, Quebec. Dendrograptus dubius Miller. Dendrograptus simplex Spencer, Canadian Nat., 10, 1882, p. 165 (nom. mid.); Trans. Acad. Sci. St. Louis, 4, 1884, p. 567, pi. 1, fig. 4; Bull. Mus. Univ. State Missouri, 1, 1884, p. 17, pi. 1, fig. 4. Dendrograptus dubius Miller, N. A. Geol. Pal., 1889, p. 184. Gurley, Jour. Geol., 4, 1898, pp. 94, 308. Bassler. Bull. U. S. Nat. Mus., 65, 1909, pp. 7, 8, figs. 2, 8. Niagaran dolomite: Hamilton, Ontario. Dendrograptus erectus Hall. Dendrograptus erectus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 130, pi. 17, fig. 7. Canadian (Levis, Didymograptus zone): Point Levis, Quebec. Dendrograptus flexuosus Hall. Dendrograptus flexuosus Hall, Geol Surv. Canada, Can. Org. Bern., dec. 2, 1865. p. 127, pi. 17, figs. 1, 2, p. 128, fig. 3; 20th Hep. New York S'tate Cab. Nat. Hist., 1868, p. 177, fig. 9; rev. ed., 1870, p. 209, fig. 9, p. 224. Hopkinson and Lapworth, Quar. Jour. Geol. Soc., 31, 1875, p. 662, pi. 36, figs. 3a-3d. Roemer and Freeh, Leth. Pal., 1, 1897, p. 578. Ruedemann, Mem. New York State Mus., 7, 1904, p. 579, pi. 4, figs. 5, 6, 8-10. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 26, fig. 37. Dendrograptus cf. gracilis Ruedemann, New York State Pal. Ann. Rep., 1902, p. 555. Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); DeepkilL New York (Deepkill, D. dentatus zone). Lower and Middle Arenig of Wales. Dendrograptus fluitans Ruedemann. Dendrograptus n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 555. Dendrograptus fluitans Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904> pp. 582-583, pi. 4, figs. 11, 12. Canadian (Deepkill): Deepkill, Rensselaer County, New York (Tetragraptus zone). Dendrograptus frondosus Spencer. Dendrograptus frondosus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. mid.); Trans. Acad. Sci. St. Louis, 4, 1884, p. 568, pi. 1, fig. 6; Bull. Mus. Univ. State Missouri, 1, p. 18, pi. 1, fig. 6, 6a. Gurley, Jour. Geol., 4, 1896, pp. 64, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 8, fig. 7. Niagaran dolomite: Hamilton, Ontario. 400 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dendrograptus fruticosus Hall. Dendrograptus fruticosus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 131, pi. 17, figs. 8, 9. Canadian (Levis, Didymograptus dentatus zone): Point Levis, Quebec. Dendrograptus gracilis Hall. Dendrograptus gracilis Hall, Geol. Surv. Canada, dec. 2, 1865, p. 132, pi. 18, figs. 5-6; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 199, pi. 4, fig. 11; rev. ed., 1870, p. 230, pi. 4, fig. 11; p. 224. Canadian (Levis, Didymograptus zone): Point Levis, Quebec. DENDROGRAPTUS cf. GRACILIS Buedemann. See Dendrograptus flexuosus. DENDROGRAPTUS GRACIUS var. CRASSA James. See Buthotrephis gracilis crassa. DENDROGRAPTUS (PSILOPHYTON) GRACILLIMUS "Walcott. See Mastigograptus gracil- limus. DENDROGRAPTUS GRACILLIMUS var. INTERMEDIA James. See Buthotrephis gracilis intermedia. DENDROGRAPTUS LINEARIS Carruthers. See Pleurograptus linearis. DENDROGRAPTUS NOVELLUS Hall. See Chaunograptus novellus. Dendrograptus ontarioensls Bassler. Dendrograptus ontarioensis Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 12, 13, pi. 1, fig. 4, fig. 12. Niagaran dolomite: Hamilton, Ontario. Dendrograptus phainotheca Gurley. Dendrograptus phainotheca (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 11, 12, pi. 2, fig. 2; fig. 11. Niagaran dolomite: Hamilton, Ontario. Dendrograptus prsegracilis Spencer, Dendrograptus praegracilis Spencer, Canadian Nat., 10, 1882, p. 165 (nom. mid.); Trans. Acad. Sci. St. Louis, 4, 1884, p. 569, pi. 1, fig. 7; Bull. Mus. Univ. State Missouri, 1, 1884, p. 19, pi. 1, fig. 7. Gurley, Jour. Geol., 4, 1896, pp. 95-308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 9, pi. 2, fig. 3, text figs. 4, 10. Niagaran dolomite: Hamilton, Ontario. Dendrograptus? problematicus (Spencer). Inocaulis(?) problematica Spencer, Canadian Nat., n. s., 8, 1878, p. 458; ibid., 10, 1882, p. 165; Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 36, pi. 5, fig. 3; Trans. Acad. Sci. St. Louis, 4, 1884, p. 564, pi. 5, fig. 3. Gurley, Jour. Geol., 4, 1896, pp. 99, 309. Dendrograptus? problematicus Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 10, pi. l,figs. 1, 2, text fig. 6. Dendrograptus sp. Grant, Jour. Proc. Hamilton Assoc., 16, 1900, p. 102, fig. Niagaran dolomite: Hamilton, Ontario. Dendrograptus ramosus Spencer. Dendrograptus ramosus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.); Trans. Acad. Sci. St. Louis, 4, 1884, p. 567, pi. 1, fig. 3; Bull. Mus. Uni State Missouri, 1, 1884, pp. 14, 17, pi. 1, fig. 3, 3a.~ Gurley, Jour. Geol. 1896, pp. 95, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 8, pi. 1, fig. text figs. 3, 9. Niagaran dolomite: Hamilton, Ontario. u, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 401 Dendrograptus rectus Ruedemann. Dendrograptus rectus Ruedemann, Mem. New York State Mus., 11, 1908, p. 145, pi. 8, fig. 2, text fig. 51. Upper Clinton: Clinton, Oneida County, New York. Dendrograptus serpens Hopkinson. Dendrograptus serpens Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 665, pi. 37, fig. 3. Dendrograptus cf. serpens Gurley, Jour. Geol., 4, 1896, p. 84. Canadian: Europe; Summit, Nevada. DENDROGRAPTUS SIMPLEX Spencer. See Dendrograptus dubius. DENDROGRAPTUS SIMPLEX Walcott. See Mastigograptus simplex. Dendrograptus splnosus Spencer. Dendrograptus spinosus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.); Trans. Acad. Sci. St. Louis, 4, p. 569, pi. 1, fig. 8; Bull. Mus. Univ. State Missouri, 1, pp. 14, 19, pi. 1, fig. 8. Gurley, Jour. Geol., 4, 1896, pp. 95, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 10, fig. 5. Niagaran dolomite: Hamilton, Ontario. Dendrograptus striatus Hall. Dendrograptus striatus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 129, pi. 17, figs. 5-6. Canadian (Levis, Didymograptus dentatus zone): Point Levis, Quebec. Dendrograptus(?) succulentus Ruedemann. Dendrograptus n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 570. Dendrograptus(?) succulentus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 581-582, pi. 4, figs. 1-4, text figs. 16, 17. Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptus dentatus zone); Point Levis, Quebec (Levis, D. dentatus zone). DENDROGRAPTUS TENUIRAMOSUS Walcott. See Mastigograptus tenuiramosus. Dendrograptus unllateralis Gurley. Dendrograptus unilateralis Gurley, Jour. Geol., 4, 1896, p. 84. Trenton (Magog): Magog, Quebec. DEOCRTNUS Hudson. Genotype: Rhodocrinus asperatus Billings. Deocrinus Hudson, Bull. New York State Mus., 107, 1907, p. 121. Deocrlnus asperatus (Billings). Rhodocrinus asperatus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 27, pi. 1, figs. 4a-4e. Archaeocrinus asperatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1886, p. 301. Deocrinua asperatus Hudson, Bull. New York State Mus., 107, 1907, p. 122, fig. 5, pi. 8. Chazyan (Aylmer): Near Montreal, Quebec. DERMATOSTROMA Parks. Genotype: Stromatopora papillatum James. Dermatostroma Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 29. Dermatostroma canaliculatum Parks. Dermatostroma canaliculatum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 35, pi. 24, figs. 8, 9. Richmond (Waynesville): Waynesville, Ohio. Eolotype.C&t. No. 40082, U.S.N.M. 84243 Bull. 9215 26 402 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dermatostroma cavernosum Parks. Dermatostroma cavernosum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 36, pi. 24, fig. 12-13. Trenton (Catheys): Five miles east of Mount Pleasant, Tennessee. Holotype.C&t. No. 49508, U.S.N.M. Dermatostroma corrugatum (Foerste). Labechia(?) corrugata Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 86, pi. 1, fig. 11. Dermatostroma corrugatum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 34, pi. 24, figs. 7, 10, 11, 14. Richmond (Whitewater): Near Wilmington, Ohio. Dermatostroma glyptum (Foerste). Labechia corrugata glypta Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 87. Dermatostroma glyptum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 33, pi. 24, figs. 4, 5, 6. Richmond (Whitewater): Near Wilmington, Ohio. Dermatostroma papillatum (James). Stromatopora papillata James, Paleontologist, 1, 1878, p. 1. Mickleborough and Wetherby, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 81. James, ibid., 9, 1886, p. 251; ibid., 15, 1892, p. 91. Dermatostroma papillatum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 30, pi. 23, figs. 8-10. Maysville and Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky Tennessee; Virginia. Dermatostroma papillatum diversum Parks. Dermatostroma papillatum diversum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 31, pi. 23, fig. 12. Maysville (Corryville): Cincinnati, Ohio. Holotype.C&t. No. 56844, U.S.N.M. Dermatostroma scabrum (James). Stromatopora scabra James, Paleontologist, 3, 1879, p. 18. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 251; ibid., 1892, p. 91. Labechia scabra Harper and Bassler, Cat. Fossils, Trenton and Cincinnati Periods Vicinity Cincinnati, 1896, p. 3. Dermatostroma scabrum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 31, pi. 24, figs. 1-3. Eden-Richmond: Lebanon, Cincinnati, etc., Ohio; Indiana; Kentucky; Ten- Plesiotype.C&t. No. 40080, U.S.N.M. Dermatostroma tyronense Foerste. Dermatostroma tyronensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 139, pi. 10, figs. 5a, b. Black River (Lowville): High Bridge, Kentucky. DESMOGRAPTUS Hopkinson. Genotype: D. cancellatus Hopkinson. Desmograptus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 668. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 185. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 609. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 26. Ruedemann, Zittel-Eastman Textb. Pal., 1913, p. 128. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 403 Desmograptus cancellatus (Hopkinson). Dictyograptus (Desmograptus) cancellatus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 668, pi. 36, figs, lla, lib. Dictyonema (Desmograptus) cancellatum Ruedemann, New York State Pal., Ann. Rep. 1902, p. 570. Desmograptus cancellatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 610, 611, pi. 3, figs. 5-8, 31. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 26, fig. 36. Desmograptus macrodictyum Gurley, Jour. Geol., 4, 1896, p. 83. Lower Ordovician: St. Davids, Wales (Lower Arenig); Point Levis, Quebec (Levis); Deepkill, Rensselaer County, New York (Deepkill, Diplograptua dentatus zone). Desmograptus Intrlcatus Ruedemanii. Dictyonema (Desmograptus) n. sp. Ruedemann, New York State Pal., Ann. Rep. 1902, p. 570. Desmograptus intricatus Ruedemann, Mem. New York State Mus., % 7, pt. 1, 1904, pp. 611, 612, pi. 3, figs. 1-4, text figs. 32, 33; fig. 30, p. 609. Canadian (Deepkill-Diplograptus dentatus zone) : Deepkill, Rensselaer County, New York. DESMOGRAPTUS MACRODICTYUM Gurley. See Desmograptus cancellatus. Desmograptus pergracills (Hall and Whitfield). Dictyonema pergracilis Hall and Whitfield, 24th Rep. New York State C?b. Nat. Hist., 1872, p. 181 (abstract, p. 1); 27th Rep. New York State Cab. Nat. Hist., 1875, pi. 9, fig. 38. Spencer, Trans. Acad. Sci. St. Louis ; 4, 1884, pp. 564, 577; Bull. Mus. Univ. State Missouri, 1, 1884, p. 27. Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 107. Pocta, Syst. Sil. Boheme, 8, pt. 1, 1894, p. 193. Gurley, Jour. Geol., 4, 1896, p. 308. Desmograptus pergracilis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 179. Niagaran (Louisville): Louisville, Kentucky. Desmograptus tenuiramosus Ruedemann. Desmograptus tenuiramosus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 177, 178, pi. 1, fig. 2, text figs. 84, 85. Chazyan (Normanskill) : Glenmont, Albany County, New York. DIABOLOCRINUS Wachsmuth and Springer. Genotype: D. perplexus Wachsmuth and Springer. Diabolocrinus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, pp. 211, 249. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 200. Zittel, Grundzuge Pal., 1, 1910, p. 161. Springer, Zittel- Eastman Textb. Pal., 2d ed., 1913, p. 188. Diabolocrinus asperatus (Miller and Gurley). Archaeocrinus asperatus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 19, pi. 2, figs. 7-9. Miller, Sec. App., N. A. Geol. Pal., 1897, p. 734, figs. 1296, 1297. Diabolocrinus hieroglyphicus Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 252 pi. 10, fig. 5a-c. Chazyan (Ottosee): Near Knoxville, Tennessee. DIABOLOCRINUS HIEROGLYPHICUS Wachsmuth and Springer. See Diabolocrinus asperatus. 404 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dlabolocrinus perplexus Wachsmuth and Springer. Diabolocrinus perplexus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 250, pi. 11, g. la, b. Chazyan (Ottosee): Near Knoxville, Tennessee. Diabolocrinus vesperalis (White). Rhodocrinus vesperalis White, Proc. IT. S. Nat. Mus., 2, 1880, p. 259, pi. 1, figs. 11, 12; 12th Ann. Rep. U. S. Geol. Surv. Terr., 1883, p. 129, pi. 35, figs. 4a, b. Diabolocrinus vesperalis Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, pp. 251, 262, pi. 11, figs. lc-, d. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 104. Gilbertsocrinites americanus Troost, Proc. Amer. Assoc. Adv. Sci., 2, 1850^p. 61 (nom. nud.). Lyriocrinus sculptilus Miller (not Hall, 1851), Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 83, pi. 3, figs. 6a, b; p. 117 (corrected to L. sculptus on private edition). Archseocrinus sculptus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- phia,*1885, p. 320 (Rev. Pal., pt. 3, sec. 1, 1885, p. 98). Miller, N. A. Geol. Pal.. 1889, p. 225, fig. 250. Chazyan (Ottosee) : Near Knoxville, Tennessee. Erroneously cited by White (1880) from the Coal Measares near Humboldt, Kansas, and by Miller (1882) from the Helderbergian of Tennessee. Holotype and plesiotype.C&t. Nos. 39970, 80321, U.S.N.M. DIAGONIELLA Rauff. See Protospongia Salter. DIAMESOPORA Ulrich (part). See Cceloclema Ulrich. DIAMESOPORA Hall. Genotype: D. dichotoma Hall. Diamesopora Hall, Pal. New York, 2, 1852, p. 158 (not defined). Pic tet, Traite" de Pal., 2d ed., 4, 1857, p. 170. Hall and Simpson, Pal. New York, 6, pp. 15, 19. Miller, N. A. Geol. Pal., 1889, p. 300. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 54, 229. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 175; Bull. New York State Mus., 45, 1901, p. 175. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 62. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 165. Diamesopora communis Ulrich. See Cosloclema commune. Diamesopora dichotoma Hall. Diamesopora dichotoma Hall, Pal. New York, 2, 1852, p. 158, pi. 40, figs. 3a-d. Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 118. Grabau, Bull. New York State Mus. 45, 1901, p. 175, fig. 78; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 175, fig. 78. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 62, pi. 21, figs. 12, 13; pi. 24, figs. 28-30. Grabau and Shimer, N. A. Index Fossils, 1907, p. 166, fig. 216a, b. Clinton (Rochester): Lockport, Rochester, etc., New York; Hamilton ai Grimsby, Ontario. PZmofype. Cat, No. 35759, U.S.N.M. Diamesopora infrequens (Hall). Trematopora infrequens Hall, 28th Ann. Rep. New York State Mus., doc. ed., 18/ pi. 10, figs. 13, 14 (in error for 3, 4); ibid., Mus. ed., 1879, p. Ill, pi. 10, fig. (in part), 4; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 232, pi. 9, figs. (in part), 4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890 p. 1200, Coaloclema infrequens Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258. Diamesopora infrequens Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467. Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee. BIBLIOGRAPHIC LIST OF P.ENERA AND SPECIES. 405 Diamesopora osculum (Hall). Trematopora osculum Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 10, figs. 3-12 (3 and 4 in error); ibid., Mus. ed., 1879, p. 110, pi. 10, figs. 5-8, 11-14; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 231, pi. 9, figs. 5-8,11-14. Lesley, Geol.Surv. Pennsylvania, Rep.P4, 1890, p. 1201, fig. Cceloclema osculum Ulrich. Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258. Diamesopora osculum Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467. Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee. DIAMESOPORA OWENI Ulrich. See Cceloclema oweni. Diamesopora subimbricata (Hall). Trematopora subimbricata Hall, 28th Ann. Rep. New York State Mus., Mus. ed., 1879, pi. 10, figs. 9, 10; Trans. Albany Inst., 10, 1883, p. 60 (abstract, 1879, p. 4); llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 234, pi. 9, figs. 9, 10. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1202, figs. Creloclema imbricata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1882, p. 258. Diamesopora subimbricata Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467. Niagaran (Waldron): Waldron, Indiana. DIAMESOPORA TRENTONENSIS Ulrich. See Coaloclema trentonense. Diamesopora? tubulosa (Hall). Trematopora tubulosa Hall, Pal. New York, 2, 1852, p. 151, pi. 40A, figs. 3a-c. Diamespora tubulosa Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 119. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467. Lower Clinton: Wayne County, New York. DIAMESOPORA VARIA Ulrich. See Chilotrypa varia. DIAMESOPORA VAUPELI Ulrich. See Coaloclema alternatum. DIANULITES Eichwald. Genotype: D. bicornis Eichwald. Dianulites Eichwald, Zool. Spec., 1, 1829, p. 180; Leth. Rossica, 1, 1860, p. 487. Dybowski, Die Chsetetiden der Ostbaltischen Silur-form., 1877, p. 14. Zittel, Handb. Pal., 1, 1880, p. 616. Nicholson, Genus Monticulipora, 1881, pp. 20, 155. Waagen and Wentzel, Pal. Indica, 13th Ber., 1886, p. 874. Simpson, 14th Ann. Rep. State Geol. New York for the year 1894, 1897, p. 587. Miller, N. A. Geol. Pal., 2d App. 1897, p. 728. Nickles and Baesler, Bull. U. S. Geol. Surv., 173, 1900, p. 230. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 226-229; Zittel-Eastman Textb. Pal., 1913, p. 335. Hexaporites Pander, Beitr. zur Geogn. d. russ. Reichs., 1830, p. 106, pi. 1, fig. 5; pi. 28, fig. 8. DIANULITES DISCOIDEA Miller. See Mesotrypa discoidea. DIANULITES DUBIA Miller. See Diplotrypa? dubia. DIANULITES LIMITARIS Miller. See Diplotrypa limitaris. DIANULITES NEGLECTA Miller. See Diplotrypa neglecta. DIANULITES PATELLA Miller. See Mesotrypa patella. Dianulites petropolitanus Dybowski. Dianulites petropolitana Dybowsld, Die Chaetetiden der Ostbaltischen Silur- form., 1877, p. 24, pi. 1, figs. 4, 5. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 232-237, pi. 2, figs. 4-6a; pi. 10, figs. 7-11; text figs. 129-132. Hexaporites Pander, Beitr. Geogu. russ. Reiches., 1830, p. 100, pi. 1, fig. 5; pi. 28, fig. 8. 406 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dianulites petropolitanus Continued. Hexaporites fungiformis Leuchtenberg in Eichwald Geog. RUBS., 1846, p. 370. Eichwald, Leth. Rossica, 1, 1860, p. 478. Dianulites petropolitanus var. hexaporites Dybowski, Die Cheetetiden der Ostbal- tischen Silurform., 1877, p. 30, pi. 1, figs. 6, 6a. Monotrypa (Chsetetes?) cumulata Ulrich, Geol. Minnesota, 3, pt. 1, 1893, p. 307, pi. 27, figs. 26, 27. Middle Ordovician: Esthonia, Russia; Goodhue County, Minnesota (Prosser); Ottawa, Ontario. Plesiotypes.C&t. Nos. 26906, 57339, 57340, U.S.N.M. (Holotype of M. cumulata). DIANULITES PETROPOLITANU.S var. HEXAPORITES Dybowski. See Dianulites petropo- litanus. DIANULITES QUEBECENSIS Miller. See Mesotrypa quebecensis. DIANULITES ROTUNDA Miller. See Mesotrypa rotunda. DIANULITES SELZIRKENSIS Miller. See Mesotrypa selkirkensis. DIAPHOROSTOMA Fischer. Genotype: Platyostoma ventricosum Conrad. Platyostoma Conrad (not Meigen, 1903), Jour. Acad. Nat. Sci. Philadelphia, 7, 1842, p. 275. Hall, Pal. New York, 2, 1852, pp. 103, 286; ibid., 3, 1859, pp. 293, 299. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 117. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, p. 103. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 61. Zittel, Handb. Pal., 2, 1882, p. 217. Koken, Neues Jahrb. Min., Geol., 6, 1889, pp. 349, 468, 470. Miller, N. A. Geol. Pal., 1889, p. 418. Nettelroth, Kentucky, Foss. Shells, Geol. Surv. Kentucky, 1889, p. 183. Koken, Die Leitfossilien, Leipzig, 1896, p. 128. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 274. Diaphorostoma Fischer, Man. Conch., 1885. Grabau, Bull. New York State Mus., 45, 1, 1901, p. 211; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 211. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 679. Ball, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 54. Diaphorostoma auriforme (Hall). Capulus auriformis Hall, Pal. New York, 1, 1847, p. 31, pi. 6, figs. 9a, b; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 67. Stomatia auriformis Ernmons, Amer. Geology, 1, pt. 2, 1855, p. 157. Platyostoma auriforme Raymond, Ann. Carnegie Mus., 4, 1908, p. 217. Chazyan or Trenton: Gal way, New York. Diaphorostoma brownsportense (Foerste). Platyceras brownsportensis Foerste, Jour. Geol., 11, 1903, p. 709. Diaphorostoma brownsportensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 64, pi. 1, fig. 14. Niagaran (Brownsport) : Brownsport Furnace, Cerro Gordo, and Bath Springs, Tennessee. Diaphorostoma campanula! um (Winchell and Marcy). Platyceras campanulatum Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 99, pi. 2, fig. 16. Niagaran (Racine): Chicago, Illinois. Diaphorostoma cliftouense Foerste. Diaphorostoma cliftonensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 63, pi. 3, figs. 41 A, B; Cincinnati Soc. Nat. Hist. Jour., 21, 1909, p. 30. Clinton: Clifton, Tennessee (Osgood); Martins, Lewis County, Kentucky (West Union). BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 407 DIaphorostoma hemlsphericum (Hall). Euomphalus hemisphericus Hall, Nat. Hist. New York, Geol., 4, 1843, p. 109, figs. 1, 2; p. 110, tab. 16, figs. 1, 2. Straparollus hemisphericus D'Orbigny, Prodr. Pal., 1, 1849, p. 29 (gen. ref.) Platyostoma hemispherica Hall, Pal. New York, 2, 1852, p. 288, pi. 60, fig. 2a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 692, figs. Clinton (Rochester): Rochester, Lockport, etc., New York. DIaphorostoma humile (Billings). Cyclonema humilis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 56. Gamachian (Ellis Bay) and Anticostian (Gun River-Chicotte) : The Jumpers, etc., Anticosti. Diaphorostoma illinoisense Savage. Diaphorostoma illinoisensis Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 118, pi. 7, fig. 19. Upper Medinan (Channahon) : Will County, Illinois. Diaphorostoma ulagarense (Hall). Platyostoma niagarensis Hall, Pal. New York, 2, 1852, p. 287, pi. 60, figs, la-v. Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 75, pi. 5, fig. 15. Hall, Trans. Albany Inst., 4, 1863, p. 227 (loc. occ.); 20th Rep. New York State Cab. Hist., 1868, p. 342, 393 (loc. occ.) (Extras, 1865), rev. ed., 1870, pp. 390, 432; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 28, figs. 1-12; pi. 29, figs. 1-15; pi. 31, fig. 3; Mus. ed., 1879, p. 175, pi. 28, figs. 1-12; pi. 29, figs. 1-15. White, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1880, p. 497, pi. 3, figs. 7, 8. Zittel, Handb. Pal., 2, 1882, p. 217, fig. 297. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1881, p. 318, pi. 29, figs. 1-12; 13?, pi. 30, figs. 1-15. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 97, pi. 13, figs. 3a, b; fig. 22. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 185, pi. 33, fig. 30. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 693, figs. Miller, N. A. Geol. Pal., 1889, p. 418, fig. 697. Rowley in Greene, Cont. Indiana Pal., pt. 8, 1901, p. 67, pi. 23, fig. 12. Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 483, pi. 57, figs. 3, 4. Platyostoma (Diaphorostoma) niagarense Grabau, Amer. Nat., 36, 1902, p. 939. Diaphorostoma niagarense Grabau, Bull. Buffalo Soc. Nat. Sci., 8, 1901, p. 212, fig. 141; Bull. New York State Mus., 45, 1901, p. 212, fig. 141. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 59, pi. 10, figs. 14-16. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 679, fig. 951. Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 102, pi. 6, fig. 1. Platyceras (Platystoma) niagarensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 553, pi. 25, figs. 3, 22. Platyceras (Diaphorostoma) cornutum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 453, pi. 13, figs. 9-16. Strophostylus niagarensis Keyes, Amer. Nat., 24, 1890, pi. 33, fig. 2; Proc. Iowa Acad. Sci., 1, pt. 2, 1892, p. 25. Silurian: Lockport, Rochester, etc., New York. As at present identified a widely distributed species in North America ranging from the Brassfield to the Keyser formation of the Helderbergian. Plesiotype. Cat. No. 53232, U.S.N.M. (Nettelroth). Observation. D. niagarensis Hall has been identified with Platyceras cornutum Hisinger, but until the two have been more closely compared it is preferred to leave them distinct. 408 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dlaphorostoma niagarense clintonense (Foerste). Platyceras Niagarense var. Clintonense Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 554, pi. 37a, fig. 8. Clinton: Mifflintown, Juniata County, Pennsylvania. Diaphorostoma niagarense immaturum Savage. Diaphorostoma niagarensis var. immatura Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 55, pi. 2, fig. 3. Upper Medinan (Girardeau) : Near Thebes, Illinois. Diaphorostoma niagarense multilineatum (Calvin). Platystoma niagarense var. multilineatum Calvin, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, 1890, p. 177, pi. 2, figs. 4a-c. Niagaran (Waldron): Waldron, Indiana. Diaphorostoma perforatum Whiteaves. Diaphorostoma perforatum Whitea ves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 52; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 261, pi. 29, figs. 7, 7a. Niagaran: Ekwan River, Canada. Diaphorostoma plebium (Hall). Platyostoma plebia Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 28, figs. 14, 15; rev. ed., 1879, p. 175, pi. 28, figs. 14, 15; llth Ann. Rep. Dep. Geol. Nat. Hist., 1882, p. 319, pi. 29, figs. 14, 15. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 695, figs. Niagaran (Waldron): Waldron, Indiana. Diaphorostoma trigonostoma (Meek). Platyostoma? trigonostoma Meek, Proc. Acad. Nat. Sci. Philadelphia, 1, 1871, 169. Miller, N. A. Geol. Pal., 1889, p. 418, fig. 698. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 695, figs. Platyostoma Niagarensis var. trigonostoma Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 185, pi. 16, figs. 3a-c, and text fig. Xenophora trigonostoma Whitfield, Geol. Wisconsin, 4, 1882, p. 358 (gen. ref.). Niagaran: Yellow Springs, Ohio. DIASTOPORA D'Orbigny (part). See Berenicea Lamouroux. DIASTOPORELLA Vine. See Berenicea Lamouroux. DIASTOPORINA Ulrich. Genotype: D. flabellata Ulrich. Diastoporina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 177. Miller, N. A. Geol. Pal., 1st App., 1892, p. 684. Ulrich, Geol. Minnesota, 3, 1893, p. 121. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 595. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 20. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 119. Diastoporina flabellata Ulrich. Diastoporina flabellata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 178, fig. 5; Geol. Minnesota, 3, 1893, p. 122, pi. 2, figs. 2, 3. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 199, 200 (p. 595). Grabau arid Shimer, N. A. Index Fossils, 1, 1907, p. 120, fig. 178f. Trenton (Prosser): Cannon Falls and St. Paul, Minnesota. Holotype.Vat. No. 43266. U.R.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 409 DICELLOCEPHALUS AFFiNis Matthew. See Platycolpus affinis. DICELLOCEPHALUS BARABUENSis Whitfield. See Platycolpus barabuensis. DICELLOCEPHALUS BELLI Matthew. See Anomocarella belli. DICELLOCEPHALUS(?) coRAX Matthew. See Dikelocephalus(?) corax. DICELLOCEPHALUS CRISTATUS Matthew. See Conokephalina? cristatiiH. DICKLLOCEPHALUS FiNALis Walcott. See Apatokephalus fiualis. DICELLOCEPHALUS HARTII Lesley. See Dikelocephalus hartii. DICELLOCEPHALUS INEXPECTANS Walcott. See Conokephalina inexportans. DICELLOCEPHALUS MAGNIFICUS Matthew. See Hungaia magnifica. DICELLOCEPHALUS MEQALOPS Matthew. See Conokephalina megalops. DICELLOCEPHALUS OWENI Matthew. See Anomocarella? oweni. DICELLOCEPHALUS PAUPER Matthew. See Ptychaspis? pauper. DICELLOCEPHALUS PLANIFRONS Matthew. See Anomocarella? planifrons. DICELLOCEPHALUS SESOSTRIS Matthew. See Ptychaspia sesostris. DICELLOCEPHALUS TRIBULIS Walcott. See Dikelocephalus tribulis. DICELLOGRAPSUS Hopkinson. See Dicellograptus Hopkinson. DICELLOGRAPTUS Hopkinson. Genotype: Didymograptus elegans Carruthers. Dicellograpsus Hopkinson, Geol. Mag., 8, 1871, p. 20. Dicellograptus Zittel, Handb. Pal., 1,. 1879, p. 300. Tullberg, Sverigea Geol. IUnders., Ser. C, No. 55, 1883, pp. 12, 14. Herrman, Geol. Mag., dec. 3, 2, 1885, p. 451. Koken, Die Leitfossilien, Leipzig, 1896, p. 329. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 264. Walther, Zeits. d. d. geol. Gesell., 49, 1897, p. 256. Roemer and Freeh, Leth. geog., Leth Pal., 1, 3 Lief, 1897, p. 617. Grabau and Shinier, N. A. Index Fossils, 1, 1906, p. 32. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 291-293; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 130. Dicellograptus* complanatus Lapworth. Dicellograptus complanatus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 160, pi. 5, figs. 17a-. Tullberg, Sver. Geol. Unders., Afh. och Upps., Ser. C, 50, 1882, p. 18. Roemer and Freeh, Leth. Pal., 1, 1897, p. 618, fig. 183. Elles and Wood, Mon. British Grapt., 1904, p. 139, pi. 20. figs, lad. Grabau and Shinier, N. A. Index Fossils, 1, 1906, p. 32, figs. 53a, b. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 294, 295. Ordovieian: Scotland and Ireland (Upper Hartfell); Scania (Trinucleus beds); Arbuckle Mountains, Oklahoma (Sylvan). Plesiotype.Csit. No. 54267, U.S.N.M. Dicellograptus dlvarlcatus (Hall). Graptolithus divaricatus Hall, Pal. New York, 3, 1859, p. 514, figs. 1-4; New York State Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 58, figs. 1-4; Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 14, fig. 19. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 264, figs. Graptolithus (Dicranograptus) divaricatus Hall, New York State Cab. Nat. Hist., 20th Ann. Rep., 1868, p. 380, fig. 20; rev. ed., 1870, p. 212, fig. 20. 410 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dicellograptus divaricatus Continued. Didymograptus divaricatus Nicholson, Ann. Mag. Nat. Hist., 5, 1868, p. 351, pi. 7, fig. 4; Mon. British Grapt., 1872, p. 55, text fig. 30. Dicellograptus divaricatus Hopkinson, Geol. Mag., 8, 1871, p. 25, pi. 1, fig. 4. Hopkinsonand Lapworth, Quart. Jour. Geol. Soc., 31, 1875, p. 654, pi. 34, figs. 3a, b. Lapworth, Roy. Soc. Can. Proc. and Trans., 5, sec. 4, 1886, p. 184. Walcott, Geol. Soc. Am. Bull., 1, 1890, p. 339. T. S. Hall, Rec. Geol. Surv. N. S. Wales, 7, pt. 2, 1902, p. 3, pi. 12, fig. 3; pi. 13, fig. 3. Elles and Wood, Mon. British Grapt., pt. 4, 1904, p. 143, pi. 20, figs. 5a, 5b. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, fig. 53c. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 296-299, pi. 18, figs. 4, 212-214. Dicellograptus moffatensis var. divaricatus Lapworth, Belfast Nat. Field Club, Rep. and Proc., 1, pt. 4, 1877; app., p. 141, pi. 7, fig. 10. Ami, Can. Geol. Surv., Ann. Rep. 3, pt. 2, 1889, p. 60K, 116K. Dicranograptus divaricatus Walcott, Alb. Inst. Trans., 10, 1883, (adv. sheets, 1879, p. 34). Dicranograptus (Dicellograptus) divaricatus Roemer and Freeh, Leth. Pal., 1, 3 Lief, p. 618. Chazyan (Normanskill): Kenwood, Glenmont, Stockport, etc., New York; Ne- vada; Canada; Arkansas. Middle Ordovician: Scotland and Wales (Glenkiln); New South Wales; Australia. Dicellograptus divaricatus bicurvatus Ruedemann. Dicellograptus elegans Gurley, Geol. Surv. Arkansas, Ann. Rep. for 1890^3, 1892, p. 414; Jour. Geol., 4, 1896, pp. 71, 95. Dicellograptus divaricatus var. bicurvatus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 300, pi. 18, fig. 8, text fig. 216. Chazyan (Normanskill): Kenwood and Glenwood, New York; Ouachita Moun- tains, Oklahoma (Talihina); Arkansas (Stringtown). Observation. The species listed by Gurley as D. elegans Carruthers in all probability refers to this variety. See Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 312. DICELLOGRAPTUS DIVARICATUS Lapworth (1876). See Dicellograptus divaricatus rigidus. Dicellograptus divaricatus rectus Ruedemann. Dicellograptus divaricatus var. rectus Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, p. 299, pi. 18, fig. 7, text fig. 215. Chazyan (Normanskill): Kenwood and Speigletown, New York. Dicellograptus divaricatus rigidus Lapworth. Dicellograptus divaricatus Lapworth, Cat. West. Scott. Foss., 1876, pi. 4, fig. 86. Dicellograptus moffatensis var. divaricatus Lapworth, Belfast Nat. Field Club, Rep. and Proc., 1, pt. 4, app. 1877, p. 141, pi. 7, fig. 10. Dicellograptus rigidus Gurley, Geol. Surv. Arkansas, 3d Ann. Rep., 1890, p. 416; Jour. Geol., 4, 1896, p. 297. Dicellograptus divaricatus var. rigidus Lapworth, Ann. Mag. Nat. Hist., 5th eer., 5, 1880, p. 163, pi. 5, fig. 20. Elles and Wood, Mon. British Grapt., 1904, p. 144, fig. 88a; pi. 20, figs. 6a-e. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 301. Ordovician: Great Britain (Glenkiln); Arkansas and Oklahoma (Normanskill- Stringtown). Plesiotype.Czt. No. 54259, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 411 Dicellograptus divaricatus salopiensls Elles and Wood. Dicellograptus divaricatus var. ealopiensis Elles and Wood, Mon. British Grapt., pt. 4, 1904, p. 145, pi. 20, figs. 7a-e. Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, p. 300, pi. 18, fig. 5, text figs. 217-219. Ordovician: Shropshire, England, and South Scotland (Glenkiln); Stockportand Kenwood, New York (Normanskill). DICELLOGRAPTUS ELEQANS Gurley. See Dicellograptus divaricatus bicurvatus. Dicellograptus gurleyi Lapworth. Dicellograptus gurleyi (Lapworth MSS) Gurley, Jour. Geol., 4, 1896, p. 70. Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, pp. 303-306, pi. 19, figs. 7-9, text figs. 223-228. Chazyan (Normanskill): Stockport, Glenmont, and Mount Moreno, New York; Arkansas (Stringtown). Pleviotype.C&t. No. 54265, U.S.N.M. Dicellograptus intortus Lapworth. Dicellograptus intortus Lapworth, Ann. and Mag. Nat. Hist., 5th ser., 5, 1880, p. 161, pi. 5, fig. 19a. Clark, Geol. Mag., 4th eer., 9, 1902, p. 498. Elles and Wood, Mon. British Grapt., pt. 4, 1904, p. 146, figs. 90a, b, pi. 20, figs, a-f. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 302, 303, figs. 221, 222; pi. 18, figs. 9-10. Dicellograpsus intortus Gurley, Jour. Geol., 4, 1896, p. 95. Dicellograptus intortus polythecatus Gurley, Jour. Geol., 4, 1896, p. 70. Ordovician: Great Britain (Glenkiln); Stockport and Speigletown, New York; Arkansas (Normanskill). DICELLOGRAPTUS INTORTUS POLYTHECATUS Gurley. See Dicellograptus intortus. Dicellograptus inensurans Ruedemann. Dicellograptus mensurans Ruedemann, Mem. New York State Mus., 11, 1908, pt. 2, pp. 295, 296, pi. 18, fig. 2, text figs. 210, 211. Chazyan: Kenwood, New York (Normanskill); Alabama (Athens). Dicellograptus moffatensis alabameusis Ruedemann. Dicellograptus moffatensis var. alabamensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 310-312, pi. 20, figs. 1, 2, text figs. 234-236. Chazyan (Athens): Near Pratt's Ferry, Bibb County, Alabama. DICELLOGRAPTUS MOFFATENSIS var. DIVARICATUS Ami. See Dicellograptus divari- catus. DICELLOGRAPTUS MOFFATENSIS var. DIVARICATUS Lapworth. See Dicellograptus divaricatus rigidus. DICELLOGRAPTUS RIGIDUS Gurley. See Dicellograptus divaricatus rigidus. Dicellograptus sextans (Hall). Graptolithus sextans Hall, Pal. New York, 1, 1847, p. 273, pi. 74, fig. 3. Salter, Quar. Jour. Geol. Soc., 5, 1849, p. 17, pi. 1, fig. 10. Chapman, Canadian Jour., n. s., 1, 1856, p. 389, fig. 2. Carruthers, Siluria, 4th ed., 1867, p. 61, fig. 8. Hall, 20th Rep. New York State Cab. Hist., 1868, pp. 180, 227; rev. ed., 1870, pp. 212, 224. Nicholson, Quar. Jour. Geol. Soc., 24, 1868, p. 134. Diplograptus? sextans McCoy, British Pal. FOBS., 1855, p. 9. Didymograptus sextans Nicholson, Ann. Mag. Nat. Hist., 4th ser., 5, 1870, p. 354, pi. 9, fig. 9. 412 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dicellograp tus sextans Continued . Dicellograptus sextans Lapworth, Belfast Nat. Field Club, Rep. and Proc., 1, pt. 4, 1877, pi. 7, fig. 4. Linnarsson, Sver. Geol. Unders., ser. C, no. 31, 1879, p. 18. Lapworth, Ann. and Mag. Nat. Hist., 5th ser., 6, 1880, p. 19; Trans, Roy. Soc. Canada, 5, sec. 4, 1886, p. 178. Ami, Canadian Geol. Surv. Rep., 2d ser., 3, pt. 2, 1889, p. 117. Walcott, Geol. Soc. Amer. Bull., 1, 1890, p. 339. Gurley, Jour. Geol., 4, 1896, p. 297. T. S. Hall, Roy. Soc. Victoria Proc., 9, 1896, p. 184; Geol. Mag., n. s., dec. 4, 6, 1899, p. 445. Ruedemann, Bull. New York State Mus., 42, 1901, p. 539. Clark, Geol. Mag., 4th ser., 9, 1902, p. 498. Elles and Wood, Mon. British Grapt., pt. 4, 1904, p. 153, pi. 21, figs! la-e. Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33. Ami, Geol. Surv. Canada, Sum. Rep., 1905, p. 12. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 33, fig. 53d, e. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 306-308, pi. 19, fig. 1, text figs. 229-230. Dicellograptus cf. sextans Tullberg, Sver. Geol. Unders., ser. C, No. 50, 1882, p. 20. Dicranograptus sextans Hopkinson, Geol. Mag., 7, 1870, p. 356, pi. 16, fig. 1. Lapworth, Cat. West. Scott. Foss., 1876, p. 6, pi. 3, fig. 78. Walcott, Trans. Albany Inst., 10, 1883, p. 34 (adv. sheets, 1879). Richardson, Terranes of Orange County, Vermont, 1902, p. 63. Dicranograptus (Dicellograptus) sextans Roemer and Freeh, Leth. Pal., 1, 1897, p. 621. Dicranograptus formosus Hopkinson, Geol. Mag., 7, 1870, p. 356. Middle Ordovician: Glenmont, Mt. Moreno, etc., New York; Vermont; Arkansas (Normanskill); England; Wales; Scotland; Ireland; Sweden; and Australia. Dicellograptus sextans exllis Elles and Wood. Dicellograptus sextans var. exilis, Elles and Wood, Mon. British Grapt., pt. 4, 1904, p. 153. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908. pp. 309, 310, fig. 231. Graptolithus sextans (pars.) Hall, Pal. New York, 1, 1847, pi. 74, fig. 3a. Middle Ordovician: Great Britain (Glenkiln); Glenmont and Mt. Moreno, New York (Normanskill). Dicellograptus sextans perexilis Ruedemann. Dicellograptus sextans var. perexilis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 310, pi. 19, fig. 2, text fig. 233. Chazyan (Normanskill): Mt. Moreno, near Hudson, New York. Dicellograptus sextans tortus Ruedemann. Dicellograptus sextans var. tortus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 309, fig. 232. Chazyan (Normanskill) : Kenwood, New York. Dicellograptus smith! Ruedemann. Dicellograptus smithi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 313-315, pi. 19, figs. 3-6, text figs. 237, 238. Chazyan (Athens): Near Pratt's Ferry, Bibb County, Alabama. DICELLOGRAPTUS TENUIS Lapworth. See Didymograptus subtenuis. DICELLOMUS Hall. Genotype: Lingula polita Hall. Dicellomus Hall, 23d Ann. Rep. New York State Cab. Nat. Hist., 1873, p. 246. Walcott, Mon. U. S. Geol. Surv., 1889, 32, pt. 2, p. 446; Proc. U. S. Nat. Mus., 28, 1905, pp. 312-513. Grabau and Shimer, N. A. Index Fossils, 1907, 1, p. 189. Walcott, Smiths. Misc. Coll., 53, 1908, pi. 11, pp. 142, 144; Mon. U. S. Geol. Surv., 51, 1912, p. 571. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 413 DICELLOMUS Continued. Schmidtia Zittel (part) (not Volborth), Handb. Pal., 1, 1880, p. 665. Obolella Hall and Clarke (part), llth Ann. Rep. State Geol. New York, 1892, pp. 240-241; 45th Ann. Rep. New York State Mus., 1892, pp. 556-557; Pal. New York, 8, pt. 1, 1892, pp. 66-73. Dlcellomus nanus (Meek and Hayden). Obolella nana Meek and Hayden, Proc. Acad. Nat. Sci. Philadelphia, 13, 1862, p. 435; Amer. Jour. Sci., 2d ser., 33, 1862, p. 73, figs, la, b, 2a, b. Billings, Geol. Surv. Canada, Pal. Foss., 1, 1862, pp. 67, 68. Meek and Hayden, Smiths. Cont. Knowl., 172, Pal. Upper Missouri, pt. 1, 1865, p. 4, pi. 1, figs. 3a-3d. Whitfield, IT. S. Geogr. and Geol. Surv. Rocky Mountains Region, Rep. Geol. Res. Black Hills of Dakota, by Newton and Jenney, 1880, pp. 340-341, pi. 2, figs. 14-17. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 69, 70. Dicellomus nanus Walcott (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 447, pi. 60, figs. 3a-d (not fig. 3); Proc. U. S. Nat. Mus., 28, 1905, pp. 314-315; Mon. U. S. Geol. Surv., 51, 1912, p. 573, pi. 53, figs. 1, la-1, 2, 2a, 3, 3a-d. Lower Ordovician: Near Buffalo Fork Peak, Uinta County, Wyoming. Also Upper and Middle Cambrian of Montana, Missouri, etc. Plesiotypes.Cat. No. 31903, 51908, U.S.N.M. DICHOGRAPSUS Salter. See Dichograptus Salter. DICHOGRAPSUS ARANEA Salter. See Dichograptus octobrachiatus. DICHOGRAPSUS FLEXILIS Hall. See Clonograptus flexilis. DICHOGRAPSUS LOGANI Nicholson. See Loganograptus logani. DICHOGRAPSUS MILESI Hall. See Clonograpttis milesi. DICHOGRAPSUS OCTOBRACHIATUS Nicholson. See Dichograptus octobrachiatus. DICHOGRAPSUS OCTONARIUS Hall. See Dichograptus octonarius. DICHOGRAPSUS RAMULUS Gurley. See Temnograptus? ramulus. DICHOGRAPSUS REMOTUS Gurley. See Clonograptus remotus. DICHOGRAPSUS RIGIDUS Hall. See Clonograptus rigidus. DICHOGRAPTUS Salter. Genotype: DichograpsUs aranea Salter=Graptolithus octobrachiatus Hall. Dichograpsue Salter, Quart. Jour. Geol. Soc. London, 19, 1863, p. 139. Nicholson, ibid., 24, 1868, p. 9, 127. Carnithers, Geol. Mag., 5, 1868, p. 73, 129. Nichol- son, Mon. British Grapt., 1872, p. 106; Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138. Dichograptus, Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 217; rev. ed., 1870, p. 251. Zittel, Handb. Pal., 1, 1879, p. 299. Tullberg, Sver. Geol. Unders., ser. C, No. 55, 1883, p. 12. Hermann, Geol. Mag., dec. 3, 3, 1886, p. 21. Barrois, Ann. Soc. Geol. du Nord, 21, Lille, p. 108. Nicholson and Murie, Geol. Mag., dec. 4, 2, p. 532, fig. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 265. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Roemer and Freeh, Leth. geog., Leth. Pal., 1897, p. 594. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 483. Zittel-Eastman Textb. Pal., 1, 1900, p. 118. Elles and Wood, Mon. British Grapt. Pal. Soc., 1902, p. 76. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 634. Grabau and Shinier, N. A. Index Fossils, 1, 1906, p. 28. Ruedemann, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 129. 414 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DICHOGRAPTUS ABNORMis Hall. See Clonograptus abnormis. DICHOGRAPTUS DIVARICATES Whitfield. See Dicellograptus divaricatus. DICHOGRAPTUS FLABELLIFORMIS Brogger. See Dictyonema flabelliforme. DICHOGRAPTUS FURCATUS Whitfield. See Dicranograptus furcatus. DICHOGRAPTUS LOGANI Nicholson. See Loganograptus logani. Dichograptus octobrachiatus (Hall). Graptolithus octobrachiatus Hall, Geol. Surv. Canada, Rep. for 1857, 1858, p. 122; Geol. Surv. Canada, Can. Org. Hem., dec. 2, 1865, p. 96, pi. 7, figs. 1-7; pi. 8, figs. 1-4. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 226, fig. 232. Dichograpsus aranea Salter, Quart. Jour. Geol. Soc., 19, 1863, p. 137, figs. 9, 10. Graptolithus (Loganograptus) octobrachiatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 174, fig. 5; pi. 3, figs. 23-27; rev. ed., 1870, p. 207, fig. 5, pi. 3, fig. 23-27. Graptolithes (Didymograptus) octobrachiatus McCoy, Geol. Surv. Victoria, Prod. Pal. Victoria, dec. 1, 1874, p. 17, pi. 2, fig. 4. Dichograpsus octobrachiatus Nicholson, Quart. Jour. Geol. Soc., 24, 1868, p. 129, pi. 5, figs. 1, 2; Ann. Mag. Nat. Hist., 4th ser., 1, 1868, p. 56, pi. 3, fig. 6. Dichograp tus octobrachiatus Nicholson, Mon. British Grapt., 1872, p. 107, fig. 50. Brogger, Die silurischen Etagen, 2, 3, 1882, p. 38. Herrmann, Nyt. Mag. Naturv., 29, 1885, p. 124; Geol. Mag., dec. 3, 3, 1886, p. 22, fig. 7. Le- crenier, Ann. Soc. Geol. Belg., 14, 1887, p. 182. Ami, Geol. Surv. Canada Rep., 2d ser., 3, pt. 2, 1889, p. 117k. Tornquist, Lunds Univ. Arsskrift., 26, 1891, p. 12, pi. 1, fig. 1. Nicholson and Marr, Geol. Mag., dec. 4, 2, 1895, p. 534, fig. Gurley, Jour. Geol., 4, 1896, p. 294. Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 595. Elles, Quart. Jour. Geol. Soc., 54, 1898, p. 483. Ruedemann, New York State Pal., Ann. Rep. 1902, pp. 554, 556. Elles and Wood, Mon. British Grapt., pt. 1, 1902, p. 77, pi. 9; pi. 10, figs, la-e. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 634-637, pi. 8, figs. 1-7; pi. 9, figs. 1-2. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 28, fig. 41. Canadian: Point Levis, Quebec (Levis, Didymograptus zone); Deepkill, Rens- eelaer County, New York (Deepkill, Tetragraptus, Didymograptus, and Diplograptus zones); England (Skiddaw); Wales (Arenig); Scandinavia; Belgium; Australia. Dichograptus octonarius (Hall). Graptolithus octonarius Hall, Canadian Nat. Geol., 3, 1858, p. 148; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 124; Geol. Surv. Canada, dec. 2, 1865, p. 95, pi. 10, figs. 1, 2. Graptolithus (Monoprion) octonarius Hall, 20th Rep. New York State Cab. Hist., 1868, p. 226, pi. 3, fig. 22; rev. ed., 1870, p. 260, pi. 3, fig. 22; p. 223. Dichograpsus octonarius Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.) Dichograptus octonarius Hall (T. S.), Geol. Mag., dec. 4, 6, 1899, p. 449, pi. 22, fig. 7. Canadian: Point Levis, Quebec (Levis); Australia. DICHOGRAPTUS THUREAUI Freeh. See Goniograptus thureaui. Dichotrypa grandis Ulrich. ^ Dichotrypa grandis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 498, pi. 43, figs. 1-1< Niagara (?): Will County, near Wilmington, Illinois (?). Observation. This form is probably from the St. Louis group of Illinois ai may be the same as Dichotrypa elegans Ulrich. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 415 DICRANELLA Ulrich. Genotype: D. bicornis Ulrich. Dicraiiella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 664; Zittel-Eastman Textb. Pal., 1, 1900, p. 644. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349. Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. Dicranella bicornis Ulrich. Dicranella bicornis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 665, pi. 44, fig. 26; pi. 46, figs. 39, 40. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349, fig. 1657, j, k. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425d. Beyrichia bicornis Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.). Black River (Decorah): Minneapolis and St. Paul, Minnesota. Cotypes.Cait. No. 41366, U.S.N.M. Dicranella? byrnesi (Miller). Leperditla Byrnesi Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 123, fig. 10; N. A. Geol. Pal., 1889, p. 552, fig. 1020. JSchmina Byrnesi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 12, pi. 3, figs. 9-11. Dicranella? byrnesi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 664. Eden (Fulton): Cincinnati, Ohio, and vicinity. Dicranella marginata Ulrich. Dicranella marginata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 666, pi. 44, figs. 27,28. Beyrichia marginata Miller, N. A. Geol. Pal., 2d App., 1897, p. 786 (gen. ref.). Black River (Decorah): Fountain, Minnesota. Holotype.Czt. No. 41368, U.S.N.M. Dicranella? simplex Ulrich. Dicranella? simplex Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 666, pi. 44, figs. 24, 25; pi. 46, fig. 42. Beyrichia simplex Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.). Black River (Decorah): Fountain, Minnesota. Holotype.C&t. No. 41367, U.S.N.M. Dicranella spinosa Ulrich. Dicranella spinosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 665, pi. 44, fig. 23; pi. 46, fig. 41. Beyrichia spinosa Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.). Black River (Decorah): Minneapolis, Minnesota. Holotype. Cat. No. 41369, U.S.N.M. DICRANISCUS Meek. See Triplecia Hall. DICRANOGRAPTUS Hall. Genotype: Graptolithus ramosus Hall. Dicranograptus Hall, Can. Org. Remains, dec. 2, 1865, p. 112; 20th Rep. New York State Cab. Hist., 1868, p. 218; rev. ed., 1870, p. 252. Carruthers, Geol. Mag., 5, 1868, p. 73, 132. Hopkinson, Geol. Mag., 7, 1870, p. 353. Richter, Zeits. d. d. geol. Gesell, 27, 1875, p. 266. Zittel, Handb. Pal., 1, 1879, p. 300. Tullberg, Sveriges Geol. Unders., ser. C, No. 55, 1883, pp. 12, 14. Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 562. Miller, N. A. Geol. Pal., 1889, p. 185. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 160. Gurley, Jour. Geol., 4, 1896, p. 71. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 264. Koken, Die Leitfossilien, Leipzig, 1896, p. 329. Roemer and Freeh, Leth. geog., Leth. Pal., 1897, p. 615.; Zittel-Eastman 416 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DICRANOGRAPTUS Continued. Textb. Pal., 1, 1900, p. 119. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 315-317; Zittel-Eastman Pal., 2d ed., 1913, p. 130. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32. Dicranograpsus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 6, 1870, p. 371; Mon. British Grapt., 1872, p. 118. DICRANOGRAPTUS ARKANSASENSIS Gurley. See Dicranograptus ramosus arkan- sasensis. DICRANOGRAPTUS ARUNDINACEUS Hall. See Mastigograptus arundinaceus. Dicranograptus contortus Ruedemann. Dicranograptus contortus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 337-338, pi. 23, fig. 9; figs. 275-278. Chazyan (Normanskill) : Kenwood and Troy, New York. DICRANOGRAPTUS DISSIMILARIS Emmons. See Diplograptus foliaceus. DICRANOGRAPTUS DIVARICATUS Walcott. See Dicellograptus divaricatus. DICRANOGRAPTUS FORMOSUS Hopkinson. See Dicellograptus sextans. Dicranograptus furcatus (Hall). Graptolithus furcatus Hall, Pal. New York, 1, 1847, p. 237, pi. 74, figs. 4a-h. Chapman, Can. Jour., 1, 1856, p. 390, fig. 10. Dicranograptus furcatus Hall, Geol. Surv. Canada Can. Org. Rem., dec. 2, 1865, p. 15. Lapworth, Ann. Mag. Nat. Hist., 5, 1880, p. 283. Walcott, Alb. Inst. Trans., 10, 1883 (Adv. sheet, 1879), p 34. Whitfield, Am. Jour. Sci., 3d ser., 26, 1883, p. 380. Walcott, Geol. Soc. Bull., 1, 1890, p. 339. Gurley, Jour. Geol., 4, 1896, p. 297. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 334-336, pi. 23, fig. 7; text fig. 272. Dicranograptus nicholsoni Freeh, Leth. Pal., 1, 1897, p. 617, fig. 181. Chazyan (Normanskill): Glenmont, etc., New York; Silver Peak Quadrangle, Nevada. Plesiotypes.M. No. 54251, U.S.N.M. Dicranograptus furcatus exills Ruedemann. Dicranograptus furcatus var. exilis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 337, pi. 23, fig. 8; figs. 273-274. Chazyan (Normanskill): Kenwood, New York. DICRANOGRAPTUS IN^EQUALIS (Emmons). See Cladograptus inaequalis. Dicranograptus nicholsoni Hopkinson. Dicranograptus nicholsoni Hopkinson, Geol. Mag., 7, 1870, p. 357, pi. 16, fig. 3. Lapworth, Cat. West. Scott. Foss., 1876, p. 6, pi. 3, fig. 79; Belfast Nat. Field Club, Rep. and Proc., App., 1, pt. 4, 1877, p. 141, pi. 7, fig. 2. Tullberg, Sver. Geol. Unders., ser. C, No. 50, 1882, p. 20. Gurley, Jour. Geol., 4, 1896, p.297. EllesandWood, Mon. British Grapt., pt. 4, 1904, p. 171, pi. 25, figs, la-h. T. S. Hall, Proc. Roy. Soc. Victoria, 18, 1905, p. 24, pi. 6, fig. 7; Rec. Geol. Surv. Victoria, 1, pt. 4, 1906, p. 274. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 317-320, pi. 20, figs. 3, 5; pi. 21, fig. 1; figs. 241,242. Middle Ordovician: Great Britain (Glenkiln and Hartfell); Scania; Victoria; Saratoga County, etc., New York (Trenton-Utica) ; Ohio (Fulton). Plesiotypes.C&t. Nos. 54247, 54269, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 417 DICRANOGRAPTUS NICHOLSONI Freeh. See Dicranognptufl furcatus. DICRANOC.RAPTUS MciioLsoNi ARKANSASENSis Gurley. See Dicranograptus ramostis arkansasensis. Dicranograplus nicholsoni diapason Gurley. Dicranograptus nicholsoni var. diapason Gurley, Jour. Geol., 4, 1896, p. 73. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 322-324, pi. 21, figs. 3-5, figs. 249-254. Chazyan (Normanskill): Glenmont, Stockport, etc., New York; Arkansas. Cotype. Cat. No. 54286, U.S.N.M. Dicranograptus nicholsoni parvangulus Gurley. Dicranograptus nicholsoni var. parvangulus Gurley, Ann. Rep. Geol. Surv. Arkansas, 3, 1892, p. 417; Jour. Geol., 4, 1896, p. 73. Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, pp. 320-322, pi. 21, fig. 2, figs. 243-248. Chazyan (Normanskill): Mount Moreno, Glenmont, Stockport, etc., New York; Arkansas. Cotypes.^B.t. Nos. 54257, 54258, U.S.N.M. Dicranograptus nicholsoni parvulus Ruedemann. Dicranograptus nicholsoni var. parvulus Ruedemann, Bull. New York State Mus., 162, 1912, p. 78 ; figs. 17, 18. Trenton (Canajoharie): Near Patterson ville, New York. Dicranograptus nicholsoni whitianus (Miller). Graptolithus (Climacograptus) ramnlus White (preoccupied), Wheeler's Expl. Surv. West 100th Merid., 4, pt. 1, 1877, p. 62, pi. 4, figs. 3a-c. Graptolithus whitianus Miller, Amer. Pal. Foss., 2d ed., 1883, p. 269. Dicranograptus nicholsoni var. whitianus Gurley, Jour. Geol., 4, 1896, p. 72, 300. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 324. Chazyan (Normanskill zone): Five miles north of Summit, Nevada. Holotype.Cat. No. 8555, U.S.N.M. DICRANOGRAPTUS RAMOSUS Hopkinson. See Dicranograptus spinifer. Dicranograptus ramosus (Hall). Graptolithus ramosus Hall, Pal. New York, 1, 1847, p. 270, pi. 73, fig. 3a-h. Salter, Geol. Soc. Quar. Jour., 5, 1848, p. 16, pi. 1, fig. 7; Geol. Surv. Canada, dec., 1865, p. 15, fig. 20. Chapman, Canadian Jour., 8, 1863, p. 205, text fig. 203. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 200, fig. 194. Graptolithus (Dicranograptus) ramosus Hall, New York State Cab. Nat. Hist., 20th Ann. Rep., 1868, p. 181, fig. 21; pi. 2, figs. 18-21, p. 227; rev. ed., 1870, p. 212. Cladograpsus ramosus Geinitz, Die Graptolithen, 1852, p. 29. McCoy, Geol. Surv. Victoria, dec. 2, 1875, pi. 20, fig. 2. Cladograpsus sp. undet. Emmons, Amer. Geology, 1856, pi. 1, fig. 12. Dicranograptus ramosus Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 330, pi. 1]A, fig. 1; Siluria, 4th ed., 1866, p. 541, fig. 4. Nicholson, Mon. British Grapt.,1872, p. 119, fig. 60. Lapworth, Cat. West. Scot. Foss., 1876, p. 6, pi. 4, fig. 80. Whitfield, U. S. Geog. Surv. West 100th Merid., Wheeler 's Rep., 1877. Walcott, Alb. Inst. Trans., 10, 1883 (Advance sheet, 1879, p. 34). Lapworth, Roy. Soc. Canada Trans., 5, sec. 4, 1886, p. 184. Ami, Canadian Geol. Surv. Rep., 2d ser., 3, pt. 2, 1889, p. 117K. Miller, N. A. Geol. Pal., 1889, p. 185, fig. 167. Walcott, Bull. Geol. Soc., 1, 1890, 339. Gurley, Geol. Surv. Arkansas Ann. Rep., 3, 1892, p. 411. James, Jour. Cincinnati 84243 Bull. 9215 27 418 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dicranograptus ramosus Continued. Soc. Nat. Hist., 14, 1892, p. 160. Gurley, Jour. Geol., 4, 1896, p. 297. T. S. Hall, Proc. Roy. Soc. Victoria, 9, 1896, pi. 1, p. 184. Roemer and Freeh, Leth. geog.,Leth. Pal., 1, 1897,613, fig. 180. T. S. Hall, Geol. Mag., n. s., dec. 4, 6, 1899, 445. Ruedemann, Bull. New York State Mtts., 42, 1901, p. 496ff. T. S. Hall, Geol. Surv. Victoria Rec., 1, pt. 1, 1902, p. 33. Clark, Geol. Mag. (4), 9, 1902, p. 498. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 55, 213, pi. 16, figs. 10, 11. Elles and Wood, Mon. British Grapt., 1904, p. 175, pi. 24, figs. 6a, b. Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, fig. 52. Ruedemann, Mem. New York State Mus., 11, pt. 2, pp. 325-328, pi. 23, fig. 1, text figs. 255, 256, 411. Middle Ordovician: Mount Moreno, Kenwood, Stockport, etc., New York; Canada; New Jersey; Arkansas; Oklahoma (Normanskill); Victoria and Australia. Hartfell and Glenkiln shales of Great Britain. Dicranograptus ramosus arkansasensis (Gurley). Dicranograptus arkansasensis Gurley, Geol. Surv. Arkansas, Ann. Rep., 3, 1892, p, 416, pi. 9, figs. 1, 2. Dicranograptus nicholsoni arkansasensis Gurley, Jour. Geol., 4, 1896, p. 72. Dicranograptus ramosus var. arkansasensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 329, figs. 257, 258. Middle Ordovician: Arkansas (Normanskill); Great Britain (Gleiikiln). Cotype. Cat. No. 54261, U.S.N.M. DICRANOGRAPTUS RAMOSUS var. SPINIFER Elles and Wood. See Dicranograptus spinifer. DICRANOGRAPTUS RAMULUS Herrman. See Dicranograptus nicholsoni whitianus. Dicranograptus rectus Hopkinson. Graptolithus ramosus Salter, Quart. Jour. Geol. Soc. London, 5, 1849, p. 16, pi. 1. fig. 7. Dicranograptus rectus Hopkinson, Geol. Mag., 9, 1872, p. 508, pi. 12, fig. 10. Elles and Wood, Mon. British Grapt., 4, 1904, p. 169, pi. 24, figs. 4a-c. Ordovician: South Scotland (Glenkiln); Arkansas (Normanskill-Stringtown). DICRANOGRAPTUS SEXTANS Hopkinson. See Dicellograptus sextans. Dicranograptus spinifer (Lapworth) Elles and Wood. Dicranograptus ramosus Hopkinson, Geol. Mag., 7, 1870, p. 358, pi. 16, fig. 5.- Lapworth, Belfast Nat. Field Club, Rep. and Proc., App., 1, pt. 4, 1877, 140, pi. 7, fig. 1. Dicranograptus ramosus var. spinifer (Lapworth MS.) Elles and Wood, Mon. Bi ish Grapt., pt. 4, 1904, p. 176, pi. 24, figs. 8a-c. Dicranograptus spinifer Lapworth, Geol. Soc. Quart. Jour. London, 38, 1882, p. 610. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 330-332, pi. 22; pi. 23, figs. 2, 3, figs. 259-263. Middle Ordovician: Great Britain (Hartfell and Glenkiln); Glenmont, Stockport, and Mount Moreno, New York (Normanskill). / Dicranograptus spinifer geniculatus Ruedemann. Dicranograptus spinifer var. geniculatus Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, pp. 333, 334, pi. 23, figs. 4-6, text figs. 265-267. Chazyan (Normanskill): Glenmont, and Mount Moreno, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 419 DICRANOPELTIS Hawle and Corda. Genotype: Lichas ecabra Beyrich. Dicranopeltis Hawle and Corda, Abh. d. k. bohmischen Gesell. Wise., 5, 1847 (extract), p. 141, pi. 7, fig. 75. Gurich, Neues Jahrb. Min., Geol. Pal., 14, Beilage-Band, 1901, p. 525. Reed, Quart. Jour. Geol. Soc. London, 58, 1902, pp. 63, 61; sec. B, pp. 71, 82. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 310. Dicranopeltis arkaiisana (Van Ingen). Arges arkansana Van Ingen, School of Mines Quart., 23, 1901, p. 61, fig. 19, pi. figs. 19-21. Niagaran (St. Clair): St. Clair Springs, Independence County, Arkansas. Dlcranopeltls decipieiis (Wiuchell and Marcy). Lichas breviceps? Hall, Adv. sheets., 18th Rep. New York State Cab. Nat. Hist., 1865, p. 30 (not Hall, 1864); 20th Rep. New York Sin to Cab. Nat. Hist., 1867, p. 334, p. 377, pi. 21, figs. 12-14; rev. ed., 1870, p. 424, pi. 21, figs. 12-14. Lichas dccipiens Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 104, pi. 3, fig. 11. Lichas emarginatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 199. Dicranopeltis decipieiis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 237, pi. 22, figs. 10, 11. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 311, fig. 1621f, g. Niagaran (Racine): Bridgeport, Hawthorn, and Lemont, Illinois; Graf ton, Wis- consin. Dicranopeltis nasuta Weller. Dicranopeltis nasuta Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 240, pi. 22, figs. 5-7. Niagaran (Racine): Milwaukee, Wisconsin. Dicranopeltis teller! Weller. Dicranopeltis telleri W 7 eller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 241, pi. 22, figs. 8-9. Niagaran (Racine): Milwaukee, Wisconsin. DICRANOPORA Ulrich. Genotype: Ptilodictya internodia Miller and Dyer. Dicranopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 152, 166. Miller, N. A. Geol. Pal., 1889, p. 300. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 389. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, p. 14. Simpson, 14th Ann. Rep. State Geol. New York for the year 1894, 1897, p. 545. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 745. Dicranopora einacerata (Nicholson). Ptilodictya emacerata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 179, pi. 14, figs. 3-3b; Pal. Ohio, 2, 1875, p. 261, pi. 25, figs. 5-5b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 826, figs. Dicranopora emacerata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 40. Whiteaves, Pal. FOBS., 3, 1895, p. 118. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 827, pi. 32, figs. 13, 13b. Maysville and Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain, Manitoba; Anticosti. Dicranopora fragilis (Billings). Ptilodictya fragilis Billings, Catal. Sil. Foss. Anticosti, 1866, p. 9. Stictopora fragilis Whitfield, Geol. Surv. Wisconsin, 4, 1882, p. 253, pi. 11, fig. 24. 420 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dlcranopora fragills Continued. Dicranopora fragilis Ulrich, Contr. Micro-Pal. Cambro-SiL, pt. 2, 1889, p. 40. Whiteaves, Pal. Foss., 3, 1895, p. 118. Richmond: Charleton Point, Anticosti (Charleton); Iron Ridge, Wisconsin (Maquoketa); Stony Mountain, Manitoba (Stony Mountain). Dlcranopora internodia (Miller and Dyer). Ptilodictya internodia Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 7, pi. 4, figs. 7, 7a. Dicranopora internodia Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 166, pi. 7, figs. 9, 9a. Miller, X. A. Geol. Pal., 1889, fig. 471 (p. 300). Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. DICRANOPORA LATA Ulrich. See Rhinidictya lata. Dicranopora meeki (James). Helopora meeki James, Paleontologist, No. 1, 1878, p. 3. Dicranopora meeki Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 36, pi. 5, fig. 1. Maysville (Mount Hope): Cincinnati, Ohio, and vicinity. DICRANOPORA NITIDULA Miller. See Rhinidctya nitidula. Dicranopora parva Ami. Not recognizable. Dicranopora parva Ami, Canadian Rec. ScL, 5, 1892, p. 99. Trenton: Gagnon's Beach, Quebec. DICRANOPORA TRENTONENSIS Ulrich. See Rhinidictya trentonensis. DICTUOCRINITES Conrad. See Receptaculites Defrance. DICTUOLITES BECZII Hall. See Lithodictuon becki. DICTYOCEPHALITES Bergeron. See Harpides Beyrich. DICTYOCRINUS Hall. See Ischadites Murchison. DICTYOCRINUS Conrad. See Receptaculites Defrance. DICTYOGRAPTUS Moberg. See Dictyonema Hall. DICTYOGRAPTUS (DESMOGRAPTUs) CANCELLATUS Hopkinsou. See Desniograptus can- cellatus. DICTYOGRAPTUS RETICULATUS Ulrich. See Dictyonema arbusculum. DICTTONELLA Hall. Genotype: Rhynchonella? reticulata Hall. Dictyonella Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 274. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, pp. 81, 99; Zittel-Eastman Textb. Pal., 1, 1896, p. 312; 2d ed., 1913, p. 396. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 179; Bull. New York State Mus., 45, 1901, p. 179. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 209. Eichwaldia Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, pp. 274-277, with figs. Dall, Amer. Jour. Conch., 6, 1870, p. 98. Hall and Clarke, Pal. New York, 8, pt, 2, 1893, p. 307; 13th Ann. Rep. New York State Geol., 1895, p. 903. Dictyonella antlcostiensis (Billings). Eichwaldia anticostiensis Billings, Cat. Sil. Foss. Anticoeti, 1866, p. 10. Dictyonella anticostiensis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211. Richmond (Charleton): Near West End Lighthouse, Anticosti. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 421 Dlctyonella concinna (Hall). Eichwaldia concinna Hall, 20th Rep. New York -State Cab. Nat. Hist., 1867, p. 278. Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 83, fig. 5. Dictyonella concinna Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211. Foerste, Jour. Geol., 11, 1903, p. 709 (loc. occ.). Niagaran (Brownsport): Perry and Decatur Counties, Tennessee. Dlctyonella coralllfera (Hall). Atrypa corallifera Hall, Pal. New York, 2, 1852, p. 281, pi. 58, fig. 5. Eichwaldia corallifera Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 278. Dictyonella corallifera Schuchert, Bull. U. S. Geol., 87, 1897, p. 211. Grabau, Bull. New York State Mus., 45, 1901, p. 179, fig. 83; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 179, fig. 83. Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario. Dictyonella gibbosa (Hall). Eichwaldia gibbosa Hall, 20th Rep. New York State Cab. Nat. Hist, 1867, p. 278. Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 83, figs. 6, 7. Dictyonella gibbosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211. Foerste, Jour. Geol., 11, 1903, p. 709. Niagarau (Brownsport): Perry and Decatur Counties, Tennessee. Dlctyonella retlculata (Hall). Rhynchonella? reticulata Hall, Trans. Albany Inst., 4, 1863, p. 217. Eichwaldia reticulata Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, pp. 275-277, figs. 1-7; 28th Rep., ibid., 1879, p. 169, pi. 26, figs. 50-54; llth Rep. State Geol. Indiana, 1882, p. 312, pi. 26, figs. 50-54. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 91, pi. 13, fig. 4. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 31, pi. 3, figs. 11-13. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 308, figs. 229-235; pi. 83, figs. 8-13. Foerste, Geol. Ohio, 7, 1895, p. 594, pi. 25, fig. 4. Dictyonella reticulata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 210, fig. 247. Silurian: Waldron, Indiana, and Newsom, Tennessee (Waldron); Dayton, Ohio ( Braesfield ) ; Wisconsin . DICTTONEMA Hall. Genotype: Gorgonia? retiformis Hall; Dictyonema Hall, Amer. Jour. Sci. Arts, 2d ser., 11, 1851, p. 401; Pal. New York, 2, p. 174. Pictet, Traitede Pal., 2d ed., 4, 1857, p. 171. Hall, Canadian Nat. Geol., 3, 1858, p. 174; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 142; Pal. New York, 3, p. 15; Geol. Surv. Canada, dec. 2, 1865, p. 136; 20th Rep. New York State Cab. Hist,, 1868, p. 218, rev. ed., p. 252. Nicholson, Mon. British Grapt., 1872, p. 129. Dames, Zeits. d. d. geol. Gesell., 25, 1873. p. 383. Zittel, Handb. Pal., 1, 1879, p. 289. Salter, Mem. Geol. Surv. Great Britain, 3, 1881, p. 331; 2d ed., p. 535. Spencer, Bull. Mus. State Missouri, 1, 1884, p. 22; Trans. Acad. St. Louis, 4, 1884, pp. 262, 572. Miller, N. A. Geol. Pal. 1889, p. 185. Holm, Bihang till K. Sv. Vet.-Akad. Handl., 16, Aid. 4, No. 7, 1890, p. 4. Moberg, Geol. Foren. Stockholm* Forhandl., 13, 1891, p. 216; ibid, 16, 1894, p. 236. Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 33. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1892, p. 153. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 190. Moberg, Geol. Foren. Stockholm For- handl., 16, 1894, p. 236. Tornquist, Geol. Foren. Stockholm Forhandl., 16, 1894, p. 380. Gurley, Jour. Geol., 4, 1896, p. 81. Koken, Die Leitfossilien, Leipzig, 1896, p. 327, fig. 239. Wiman, Nat. Sci., 9, 1896, p. 243. Freeh, Leth. Geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 557. Grabau, Bull. 422 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DICTYONEMA Continued. Buffalo Soc. Nat. Sci., 6, 1899, p. 119; ibid, 7, 1901, p. 133; Bull. New York State Mus., 45, 1901, p. 133. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 591, 592. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 24. Ruedemann, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 128. Dictyograptus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 667. Moberg, Geol. Foren. Stockholm Forhandl., 16, 1894, p. 236. Tornquist, ibid., 16, 1894, p. 380. Dictyonema arbusculum (Ulrich). Dictyonema irregularis James (not Hall), Paleontologist, 3, 1879, p. 22. Dictyograptus reticulatus Ulrich, Cat. Foss. Cincinnati group, 1880, p. 61 (nom. nud.). Inocaulis arbuscula Ulrich, Cincinnati Soc. Nat. Hist. Jour., 2, 1879, p. 28, pi. 7, figs. 27, 27a. Gurley, Jour. Geol., 4, 1896, p. 300. Calyptograptus? arbusculus Spencer, Acad. Sci. St. Louis Trans., 4, 1884, p. 563, footnote (gen. ref.). Dictyonema arbusculum Gurley, in J. F. James, Cincinnati Soc. Nat. Hist. Jour., 1892, p. 153, 16, pt. 2. Nickles, ibid., 20, 1902, p. 72. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 151-153, figs. 57, 58; Bull. New York State Mus., 162, 1912, p. 77, pi. 2, fig. 15. Eden: Covington, Kentucky, and vicinity (Southgate); Indian Ladder, New York (Indian Ladder). Holotype and plesiotype.C&t. Nos. 54288, 54289, U.S.N.M. Dictyonema areyi Gurley. Dictyonema areyi (Gurley MS.) Ruedemann, Mem. New York State Mus., 11, 1908, p. 164, pi. 4, fig. 2; text fig. 73. Clinton (Rochester): Rochester, New York. Dictyonema canadense (Whiteaves). Inocaulis Canadensis Whit-eaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, p. 149, pi. 17, fig. 4. Dictyonema canadensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 131 (gen. ref.). Black River or Richmond: Inmost Island, Lake Winnipeg, Canada. DICTYONEMA (DESMOGRAPTUS) CANCELLATUM Ruedemann. See DesmograptiivS cancellatus. Dictyonema crassibasale Gurley. Dictyonema gracilis Spencer (not Hall), Canadian Nat., 8, 1878, p. 458; ibid., 10, 1882, p. 165; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 573, 574, pi. 2, figs. 2, 3; Bull. Mus. Univ. State Missouri, 1, 1884, p. 24, pi. 2, figs. 2, 2a, 3. Dictyonema crassibasale (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 19-24, pi. 3, fig. 1; text figs. 21-25. Niagaran dolomite: Hamilton, Ontario. DICTYONEMA DELICATULUM Dawson. See Dictyonema perexile. Dictyonema desmoides Gurley. Dictyonema desmoides (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 34, 35, pi. 4, fig. 3; text figs. 41-43. Niagaran dolomite: Hamilton, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 423 Dlctyonema expansum Spencer. Dictyonema expansum Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pp. 464, 575, 576, pi. 2, fig. 1; Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 25, 26, pi. 2, fig. 1. Gurley, Jour. Geol., 4, 1896, pp. 96, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 31-33, figs. 36, 37. Niagaran dolomite: Hamilton, Ontario. Dlctyonema flllraiuus Gurley. Dictyonema filiramus (Gurley MS.) Baseler, Bull. U. S. Nat. Mus., 65, 1909, p. 34, figs. 38-40. Niagaran dolomite: Hamilton, Ontario. Dictyonema flabelliforme (Eichwald). Gorgonia flabelliformis Eichwald, Sil. Schicht. in Estland, 1840, p. 207; Urwelt Russl., 1842, p. 45, tab. 1, fig. 6. Fenestella flabelliformis Eichwald, Soc. Natur. Moscou, No. 1, 1854, p. 6; ibid., 1855, No. 4, p. 453. Rhabdinopora flabelliformis Eichwald, Leth. Ross., 1860, p. 369. Dictyograptus flabelliformis Brogger, Die sil Etagen 2 and 3, etc., 1882, p. 30, pi. 12, figs. 17-19. Dictyonema flabelliformis Roeiner, Zeits. d. d. geol. Gesell, 11, 1859, p. 558. Tornquist, Lunds Univ. Arskrift, 2, 3, 1865, p. 22, pi. 1, fig. 14. Tullberg, Bih. till K. Svenska Vet. -Akad. Handl., 6, No. 13, 1882. Schmidt, Quart. Jour. Geol. Soc., 1862, p. 517. Dawson, Rep., Peter Ridpath Mus., McGill, Univ., 1883, p. 16, Moberg, Sver. Geol. Und. Afh. och. upps., ser. c, No. 109, 1890, p. 31. Matthew, Trans. Roy. Soc. Canada, 9, 1892, p. 34, pi. 12, figs. l-3b; Trans. Roy. Soc. Canada, 10, 1893, sec. 4, p. 10, footnote. Wiman, Bull. Geol. Inst. Upsala, 2, pt. 2, 1895, p. 55, pi. 10, figs. 13, 14. Matthew, Trans. New York Acad. Sci., 14, 1895, p. 262, 272, pi. 49, figs. 1, 2. Wiman, Nat. Sci., 9, 1896, p. 245. Roemer and Freeh, Leth. Geog., 1 Theil, Pal. 1., 1897, p. 572, pi. 2, figs. 3a, b. Dale, U. S. Geol. Surv., 19th Ann. Rep., pt. 3, 1899, p. 185. Ruedemann, New York State Mus., 1903, p. 936; Mem. New York State Mus., 7, pt. 1, 1904, pp. 599-606, pi. 1, figs. 1-22, text figs. 26, 27. Moberg, Lunds Univ., Arskrift, N. F. Afdeln, 2, vol. 2, No. 7, pi. 1, fig. 6, 1906. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 24, fig. 32. Westergard, Lunds Univ. Arskrift, N. F., Afdeln, 2, vol. 5, No. 3, 1909, pi. 3, figs. 3-5. Graptopora socialis Salter, Amer. Assoc. Proc., 11, 1857, p. 65. Dictyonema sociale Salter, Mem. Geol. Surv., 3, 1866, p. 331, pi. 4, fig. 1. Lap- worth, Trans. Roy. Soc. Canada, 4, 1887, p. 168, sec. 4. Dictyonema graptolithinum Kjerulf, Veiviser Christiania, 1865, pp. 1, 3, figs. 4, 5. Bryograptus? multiramosus Gurley, Jour. Geol., 4, 1896, p. 64. Dictyonema norvegicum Kjerulf, Veiviser Christiania, 1865, pp. 1, 2, figs. 1-3. Dictyonema flabelliforme var. Norvegicum, Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 37. Hahn, Ann. New York Acad. Sci., 22, 1912, p. 139. Dictyonema flabelliforme var. Acadicum Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 36. Hahn, Ann. New York Acad. Sci., 22, 1912, p. 137. Dictyonema flabelliforme var. confertum Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 36. Hahn, Ann. New York Acad. Sci., 22, 1912, p. 138. Dictyonema flabelliforme ruedemanni Hahn, Ann. New York Acad. Sci., 22, 1912, p. 139. Dictyonema flabelliforme desmograptus Hahn, Ann. New York Acad. Sci., 22, 1912, p. 139. 424 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dictyonema fiabelliforme Continued. Canadian (Dictyonema flabelliforme bed): Esthonia, Russia, Sweden, Wales, Belgium, etc.; slate belt of Rensselaer and Washington Counties, New York; Vermont; St. John Basin, New Brunswick. DICTYONEMA FLABELLIFORME var. ACADICUM Matthew. See Dictyonema flabelliforme. DICTYONEMA FLABELLIFORME var. CONFERTUM Matthew. See Dictyonema flabel- liforme. DICTYONEMA FLABELLIFORME DESMOGRAPTUS Hahn. See Dictyonema flabelliforme. DICTYONEMA FLABELLIFORME NORVEGICA Hahn. See Dictyonema flabelliforme. DICTYONEMA FLABELLIFORME RUEDEMANNI Hahn. See Dictyonema flabelliforme. Dictyonema furclferum Ruedemann. Dictyonema n. sp. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 570. Dictyonema furciferum Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 606, 607, pi. 3, fig. 11, text fig. 28. Callograptus grabaui Hahn, Annals New York Acad. Sci., 22, 1912, p. 142, figs. Canadian: Deepkill, Rensselaer County, New York (Deepkill, Tetragraptus and D. bifidus zones); Bellefonte, Pennsylvania (base of Stonehenge); Point Levis, Quebec (Levis Diplograptus dentatus zone). Dictyonema gracile Hall. Gorgonia? Hall, Geol. New York, 4th Dist., 1843, p. 115, fig. 42. Dictyonema gracilis Hall, Pal. New York, 2, 1852, p. 175, pi. 40G, fig. la-d. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 7, fig. 2. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 225. Rominger, Geol. Surv. Michigan, 1, pt. 3, 1873, p. 44. Lesquereux, Geol. Surv. Indiana, 13th Rep., 1883, p. 30. Pocta, Syst. Sil. Centre Boheme, 8, 1894, p. 193. Gurley, Jour. Geol., 4, 1896, p. 308. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 25, fig. 34. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 157, pi. 1, fig. 5, text figs. 65-68. Clinton (Rochester): Lockport, etc., New York; Ontario. DICTYONEMA GRACILIS Spencer. See Dictyoncma crassibasale. Dictyonema grande Nicholson. Dictyonema grandis Nicholson, Ann. Mag. Nat. Hist., 4th Ser., 11, 1873, p. 134, fig. 1. Canadian (Levis): Point Levis, Quebec. DICTYONEMA GRAPTOLITHINUM Kjerulf. See Dictyonema flabelliforme. DICTYONEMA HISINGERI Goppert. See Dictyonema flabelliforme. Dictyonema irregulare Hall. Dictyonema irregularis Hall, Geol. Surv. Canada, dec. 2, 1865, p. 136, pi. 20, figs. 1, 2. Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 225, pi. 2, figs. 3-5. Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Bolivia. DICTYONEMA IRREGULARIS James. See Dictyonema arbusculum. Dictyonema multiramosuin Ruedemann. Dictyonema multiramosum Ruedemann, Bull. New York State Mus., 162, 1912, p. 78, pi. 2, fig. 16. Trenton (Schenectady): Rotterdam Junction, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 425 Dlctyonema murrayi Hall. Dictyonema murrayi Hall, Canadian Org. Rem., Geol., Surv. Canada, dec. 2, 1865, p. 138, pi. 20, figs. 6, 7. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 606, pi. 3, fig. 12. Canadian: Point Levis, Quebec (Levis, Clonograptus zone), Rensselaer County, New York (Deepkill). Ple*iotypeC&t. No. 54287, U.S.N.M. Dictyonema murrayi tarijense Hoek. Dictyonema murrayi var. turijense Hoek, Neuea Jahrb. Min., Geol., Pal., 34, 1912, p. 224, pi. 12, figs. 1, 2. Lowest Ordovician: Tarija, Bolivia. Dictyonema neenah Hall. Dictyonema neenah Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 7; 20th Rep. New York State Cab. Nat. Hist., 1878, p. 225. Pocta, Syst. Sil. Centre Boheme, 8, 1894, p. 193. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, pi. 5, fig. 13, p. 47. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 150. Black River (Platteville): Fox River, near Appleton, Wisconsin. DICTYONEMA NORVEGicuM Kjerulf. See Dictyonema flabelliforme. Dictyonema obovatum Gurley. Dictyonema obovatum Gurley, Ann. Rep. Geol. Surv. Arkansas, 1890, 3, 1892, p. 418; Jour. Geol., 4, 1896, p. 300. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 151. Chazyan (Normanskill-Stringtown): Near Crystal Springs, Arkansas. Dictyonema parallelum Gurley. Dictyonema parallelum (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 37, 38, pi. 4, fig. 2, text fig. 47. Niagaran dolomite: Hamilton, Ontario. Dictyonema percrassum Gurley. Dictyonema percrassus (Gurley MS.) Bassler, Bull. IT. S. Nat. Mus., 65, 1909, pp. 35, 36, figs. 44, 45. Niagaran dolomite: Hamilton, Ontario. Dictyonema perexile Gurley. Dictyonema delicatulum Dawson (not Lapworth), Canadian Nat. Geol., 10, 1883, p. 461 (footnote). Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 96. Canadian: Point Levis, Quebec (Levis); St. John, New Brunswick (Bretonian Div. 03d). DICTYONEMA PERGRACILIS Hall. See Desmograptus pergracilis. Dictyonema pertenue Foerste. Dictyonema pertenue Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 107, pi. 8, fig. 27a,b; Geol. Surv. Ohio, Pal., 7, 1893, p. 600, pi. 27, figs. 27a, b. Gurley, Jour. Geol., 4, 1896, p. 308. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 153, figs. 59, 60. Upper Medinan (Brassfield): Soldiers Home near Dayton, Ohio. Dictyonema polymorphum Gurley. Dictyonema tenellum Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pi. 1, fig. 13 (not description, p. 576); Bull. Mus. Univ. State Missouri, 1, 1884, pi. 1, fig. 13 (not description, p. 26). 426 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dictyonema polymorphum Continued. Calyptograptus subretiformis Spencer (part), Trans. Acad. Sci. St. Louis, 4, 1884 ? pi. 4, fig. 2; Bull. Mus. Univ. State Missouri, 1, 1884, pi. 4, fig. 2. Dictyonema polymorphum (Gurley MS.) Ruedemann, Mem. New York State Mus., 11, 1908, p. 158, pi. 2, fig. 3; pi. 3, figs. 4, 5, 6; p. 160, figs. 60-72. Bassler, Bull. U. S. Nat. Mus., No. 65, 1909, p. 24, pi. 4, fig.ll. Niagaran: Hamilton, Ontario; Middleport, New York (Rochester). Holotype.Ca,t. No. 54278, U.S.N.M. Dictyoneina quadrangulare (Hall). Dictyonema quadrangularis Hall, Geol. Surv. Canada, dec. 2, 1865, p. 138, pi. 20, fig. 5. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 96. Canadian: Point Levis, Quebec (Levis, Clonograptus zone); St. John, New Brunswick (Bretonian Div. C3d). Dictyonema rectilineatum Buedemanu. Dictyonema n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 570. Dictyonema rectilineatum Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 607-609, pi. 3, figs. 9, 10, text fig. 29. Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptus dentatus zone); Point Levis, Quebec (Levis, dentatus zone). Dictyonema retlforme (Hall). Gorgonia? reteformis Hall, Rep. Surv. 4th Geol. Dist. New York, 1843, p. 115, fig. 1. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 260, figs. Dictyonema retiformis Hall, Pal. New York, 2, 1852, p. 174, pi. 40F, fig. la, b. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 55, pi. 7, fig. 1. Hall, Geol. Surv. Canada, dec. 2, 1865, p. 12, fig. 10; 20th Rep. New York State Cab. Hist., 1868, p. 178, fig. 11; rev. ed., 1870, p. 210, fig. 11; p. 225. Nicholson, Mon. British Grapt., 1872, p. 129, fig. 69. Zittel, Handb. Pal., 1, 1879, p. 289, fig. 195. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 14, 23, 24, pi. 3, figs. 1, la, 2, 2a; Trans. Acad. Sci. St. Louis, 4, 1884, p. 573, pi. 3, fig. 1, 2. Miller, N. A. Geol. Pal., 1889, p. 185, text fig. 168. Pocta, Syst. Sil. Centre Boheme, 8, 1894, p. 192, 193. Gurley, Jour. Geol., 4, 1896, pp. 96, 308. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 575, fig. 145. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 133, fig. 27; Bull. New York State Mus., 45, 1901, pp. 133, 134, fig. 27. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 25, fig. 33. Ruedemann, Mem. New York State Mus., 11, 1908, p. 155, fig. 64, pi. 3. fig. 1. Basal* Bull. U. S. Nat. Mus., 65, 1909, pp. 18, 19, figs. 19, 20. Clinton (Rochester) : Rochester, Lockport, etc., New York; Hamilton. Ontario. Dictyonema robustum Hall. Dictyonema robusta Hall, Geol. Surv. Canada, dec. 2, 1865, p. 137. pi. 20, figs. 3, Canadian (Levis, Clonograptus zone): Point Levis, Quebec. Dictyonema scalariforme Foerste. Dictyonema scalariforme Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, 108, pi. 8, figs. 28, 29; Geol. Surv. Ohio, Pal., 7, 1893, p. 600, pi. 27, figs. 29. Gurley, Jour. Geol., 4, 1896, p. 308. Ruedemann, Mem. New Yc State Mus., 11, pt. 2, 1908, p. 153, pi. 1, fig. 3, text figs. 61-63. Upper Medinan (Brassfield): Soldiers Home, Dayton, Ohio. Clinton shale: Near Clinton, New York. DICTYONEMA SOCIALE Salter. See Dictyonema flabelliforme. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 427 Dlctyonema spencer! Gurley. Dictyonema spenceri (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 36, 37, pi. 4, fig. 1, text fig. 46. Niagaran dolomite: Hamilton, Ontario. Dictyonema spiniferum Ruedemann. Dictyonema spiniferum Ruedemann, Mem. New York State Mus.. 11. pt. 2, 1908, p. 151, pi. 1, fig. 4, text figs. 55, 56. (hazyan (Normanskill) : Glenmont, Albany County, New York. tyoneina splendens Billings. Dictyonema splendens Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 12, fig. 2, 2a. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 27; Trans. Acad. Sci. St. Louis, 4, 1884, p. 577. Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 108. Dictyonema cf. splendens Clarke, Mem. New York State Mus., 3, 1900, p. 64. Silurian or Helderbergian : Between Cape Gaspe and Cape Rosier, Canada. 'tyouema stenactinotum Gurley. Dictyonema stenactinotum (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 30, 31, pi. 3, fig. 2, text fig. 34. Niagaran dolomite: Hamilton, Ontario. Dictyonema subretlforme (Spencer). Calyptograptus subretiformis Spencer, Canadian Nat., n. s., 8, 1880, pp. 458, 460; 'ibid., 10, 1882, p. 165; Bull. Mus. Univ. State Missouri, 1, 1884, p. 28, pi. 4, fig. 1 (not fig. 2); Trans. Acad. Sci. St. Louis, 4, 1884, p. 578, pi. 4, fig. 1 (not fig. 2). Gurley, Jour. Geol., 4, 1896, pp. 93, 308. Dictyonema subretiforme Ruedemann, Mem. New York State Mus., 11, 1908, p. 162, pi. 2, figs. 1, 2. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 26-28, figs. 30,31. Niagaran: Hamilton, Ontario; Middleport, New York (Rochester). DICTYONEMA TENELLUM Spencer (part). See Dictyonema polymorphum. Dictyonema tenelluin Spencer. Dictyonema tenellum Spencer, Canadian Nat., n. s., 8, 1878, pp. 458, 459; ibid., 10, 1882, p. 165; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 564, 576 (not pi. 1, fig. 13); Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 26 (not pi. 1, fig. 13). Miller, N. A. Geol. Pal., 1889, p. 185. Gurley, Jour. Geol., 4, 1896, pp. 96, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 28-30, pi. 2, fig. 4, text figs. 32, 33. Niagaran dolomite: Hamilton, Ontario. Dictyonema websteri Dawson. Dictyonema websteri Dawson, Acadian Geol., Suppl. Chap., 1860, p. 60, fig. 46; ibid., 2d ed., 1868, p. 563, fig. 196; Canadian Nat. Geol., 5, 1860, p. 139, fig. 2 Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 225. Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 576; Bull. Mus. Univ. State Missouri, 1, 1884, p. 26. Ruedemann, Proc. and Trans. Nova Scotian Inst. Sci., 11, pt, 4, 1908, p. xlvii. Silurian: Kings County, Nova Scotia. DICTYOPHYTON BECKi Miller. See Lithodictuon becki. Dictyophytra Rauff. Not recognized. Dictyophytra (? in place of Dictyophyton) Rauff, Palaeontographica, 40, 1894, p. 249. Observation. Dictyophytra was proposed by Rauff probably to replace Dicty- ophyton, but its description was not given. 428 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DICTYOPHYTRA? WALCOTTi Rauff. See Cyathophycus walcotti. DICTTORHABDUS Walcott. Genotype: D. priscus Walcott. Dictyorhabdus Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 165. Dictyorhabdus priscus Walcott. Dictyorhabdus priscus Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 165, pi. 3, figs. 1-5. Black River (Harding) : Canon City, Colorado. DICTYOSTOMA Spencer. See Dictyostroma Nicholson. DICTYOSTOMA RETicuLATUM Spencer. See Ceramoporella reticulata. DICTYOSTROMA Nicholson. Genotype: D. undulatum Nicholson. Dictyostroma Nicholson, Pal. Ohio, 2, 1875, p. 254. Nicholson and Murie, Jour. Linn. Soc. London, Zool., 14, p. 224. Zittel, Handb. Pal.. 1, 1879, p. 286. Dawson, Quart. Jour. Geol. Soc. London, 35. 1879, p. 56. Nicholson, Mon. British Strom., Pal. Soc., 1886, p. 85. Waagen and Wentzel. Mem. Geol. Surv. Indica, Pal. Indica, 13th ser., 1, 1888, p. 944. Miller, N. A. Geol. Pal., 1889, p. 158. Parks, Univ. Toronto Studies, Geol. Ser., 5, 1908, p. 56. Dictyostoma Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 601; Bull. Mus. Univ. State Missouri, 1, 1884, p. 51. Milleria Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt, 2, 1885, expl. of pi. 46 (Genotype: M. laminata Davis). Observation. Dictyostroma is not a stromatoporoid, but is a coral closely allied if not identical with Coenites. DICTYOSTROMA RETICULATUM Whiteaves. See Ceramoporella reticulata. Dictyostroma undulatum Nicholson. Dictyostroma undulatum Nicholson, Pal. Ohio, 2, 1875, p. 254, pi. 24, figs. 6, 6c. Nicholson and Murie, Jour. Linn. Soc. Zool., 14, 1878, p. 224. Miller, N. A. Geol. Pal., 1889, p. 158, fig. 101. Nicholson, Mon. British Strom., 1892, pp. 85, 232. Parks, Univ. Toronto Studies, Geol. Ser., 5, 1908, p. 57, pi. 14, figs. 3, 4; pi. 15, figs. 3, 4, 7, 8. Alveolites stromatoporoides Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 55. Milleria laminata Davis, Kentxicky Fossil Corals, Geol. Stiirv. Kentucky, pt. 2, 1885, pi. 46, fig. 9. Niagaran (Louisville): Louisville, Kentucky. DIDYMOGRAPSUS Pictet. See Didymograptus McCoy. DIDYMOGRAPSUS CADUCEUS Salter. See Tetragraptus serra and T. similis. DIDYMOGRAPSUS CONVEXUS Gurley. See Didymograptus Sagittarius. DIDYMOGRAPSUS DIVARICATUS. See Dicellograptus divaricatus. DIDYMOGRAPSUS GEMINUS Nicholson. See Didymograptus nanus. DIDYMOGRAPSUS MURCHISONI FURCILLATUS Gurley. See Didymograptus furcillatus. DIDYMOGRAPTUS McCoy. Genotype: D. murchisoni McCoy. Didymograpsus McCoy, British Pal. Fossils, pt. 2, 1851, p. 9. Chapman, Cana- dian Jour., n. s., 1, 1856, p. 389. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 474. Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 9, 138. Car- ruthers, Geol. Mag., 5, 1868, pp. 73, 128. Nicholson, Ann. Mag. Nat. Hist., 4th ser., 5, 1870, p. 337; Mon. British Grapt., 1872, p. 103. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 429 HDYMOGRAPTUS- Continued. Didymograptus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, pp. 217, 234; rev. ed. (1870), p. 251. Zittel, Handb. Pal., 1, 1879, p. 298. Tullberg, Sveriges Geol. Unders., ser. C, No. 55, 1883, p. 12. Hermann, Geol. Mag^, dec. 3, 3, 1886, p. 14. Miller, N. A. Geol. Pal., 1889, p. 185. Tornquist, Lunds Univers. Arsskrift, 26, No. 4, 1890, p. 15. Barrois, Ann. Soc. Geol. du Nord, 21, Lille, 1893, p. 108. Holm, Sveriges Geol. Unders., ser. C, No. 150, 1895, p. 15; Geol. Foren. Stockholm ForhandL, 17, 1895, p. 331; Geol. Mag., dec. 4, 2, 1895, pp. 433, 439, pi. 14, figs. 1-3, 7, 8. Nicholson and Murie, Geol. Mag., dec. 4, 2, 1895, pp. 530-535, figs. Koken, Die Leitfossilien, Leip- zig, 1896, p. 328. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266; Nat. Sci., 9, 1896, p. 191. Walther, Zeits. d. d. geol. Gesell., 49, 1897, p. 251. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 587. Ruedemann, Amer. Nat., 32, 1898, p. 5; Zittel-East- man Textb. Pal., 1, 1900, p. 118. Tornquist, Lunds Univers. Arsskrift, 37, No. 5, 1901, p. 10. Elles and Wood, Mon. British Grapt., Pal. Soc., 1901, p. 5. Ruedemann, Mem. New York State Mus., 7, 1904, p. 666, 668. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 30. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 247; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 129. idyinograptus acutidens Lapworth. Didymograptus affinis Hopkinsou, Quart. Jour. Geol. Soc., 31, 1875, pi. 33, figs. 6b, c. Didymograptus acutidens (Lapworth MS.) Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 25, pi. 2, figs. 3a-d. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 683, 684, pi. 13, fig. 15, text figs. 77, 78. Canadian: St. Davids District, Wales, and South Shropshire, England (Arenig); Deepkill, Rensselaer County, New York (Deepkill, Didymograptus bifidus zone). DIDYMOGRAPTUS AFFINIS Hopkinson. See Didymograptus acutidens. Didymograptus arcuatus (Hall). Graptolithus arcuatus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 79, pi. 2, figs. 6-10. Graptolithus (Monoprion) arcuatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226; rev. ed. (1870), p. 260; p. 223. Didymograpsus arcuatus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.). Didymograptus arcuatus Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. li (gen. ref.). Canadian (Levis, Didymograptus zone): Point Le vis, Quebec. lymograptus bifidus (Hall). Graptolithus bifidus Hall, Canadian Nat. and Geol., 3, 1858, p. 164; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 130; Geol. Surv. Canada, dec. 2, 1865, p. 73, pi. 1, figs. 16-18; pi. 3, figs. 9, 10. Graptolithus (Monoprion) bifidus Hall, 20th Rep. New York State .Cab. Nat. Hist. 1869, p. 226, pi. 3, figs. 13, 14; rev. ed., 1870, p. 241; p. 223. Didymograptus bifidus Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 136; Ann. Mag. Nat. Hist., 4th eer., 5, p. 346, fig. 7. Hopkinson, Quart. Jour. Geol. Soc., 31, 1875, p. 646, pi. 33, figs. 8a-e. Brogger, Die sil. Etagen 2, 3, etc. Kristiania, 1882, p. 41. Herrmann, Geol. Mag., 3d ser., 3, 1886, p. 15. Ami, Geol. Surv. Canada Rep., 2d ser., 3, pt. 2, 1889, p. 116k. Barrois, Ann. de la Soc. Geol. du Nord., 20, 1892, p. 92. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 511. Elles and Wood, Mon. British Grapt., pt. 1, Pal. 430 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Didymograptus blfldus Continued. Soc., 1901, p. 42, figs. 26a-b, pi. 4, figs, la-f; p. 6, figs. 1, 2. Ruedemann, New York State Pal. Ann. Rep., 1902, pp. 566, 567; Mem. New York State Mus., 7, pt. 1, 1904, pp. 689-692, pi. 15, figs. 1-3, text figs. 86, 87. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 31, fig. 47c, 48. Canadian: Point Levis, Quebec (Levis, Didymograptus bifidus zone); Deepkill, Rensselaer County, New York (Deepkill, D. bifidus zone); Nevada; South Scotland and Wales (Arenig) ; England; Scandinavia; Bohemia; France. Didymograptus bipunctatus (Gurley). Didymograpsus bipunctatus Gurley, Jour. Geol., 4, 1896, p. 65, pi. 5, figs. 7, 7a. Canadian (Levis): Near Point Levis, Quebec. DIDYMOGRAPTUS CADUCEUS of authors. See Tetragraptus similis, Didymograptue (Isograptus) caduceus and T. similis. Didymograptus (Isograptus) caduceus (Salter). Didymograpsus caduceus Salter (part), Quart. Jour. Geol. Soc. London, 9, 1853, p. 87, fig. la; ibid., 19, 1863, p. 138, fig. 13a. Graptolithus caduceus Chapman, Canadian Jour., n. s., 1, 1856, p. 390, fig. 3. Graptolites (Didymograpsus) caduceus McCoy, Pal. Geol. Surv. Victoria, Prodr. Pal. Victoria, dec. 2, 1874, p. 30, pi. 20, figs. 3-5a. Didymograptus caduceus T. S. Hall, Proc. Royal Soc. Victoria, n. s., 8, 1896, p. 69. Didymograptus (Isograptus) caduceus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 693-698, pi. 15, figs. 6, 7, text fig. 89. Tetragraptus caduceus Brogger, Die Sil. Etagen 2, 3, Kristiania, 1882, p. 39. Didymograptus gibberulus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 16, 1875, p. 271, pi. 7, figs. 3, 3a, 3b. Moberg, Geol. Foren. Stockh. Forh., 13, 1891, p. 221. Holm, Sver. Geol. Und. Am. och upps., ser. C, No. 150, 1895, p. 18. Elles, Quart. Jour. Geol. Soc., 54, 1898, p. 496. Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 52, figs. 33a, b; pi. 2, figs. 9a-e. Didymograptus (Isograptus) gibberulus Roemer and Freeh, Leth. Pal., 1, 1897, p. 93, fig. 161. Isograptus gibberulus Moberg, Geol. Foren. Stockh. Forh., 14, 1892, p. 346, pi. 8, figs. 3-7. Tornquist, Lunds Univ. Arsskrift, 37, Afd. 2, 1901, p. 23, pi. 3, figs. 16-19. Tetragraptus bryonoides Etheridge, jr., Ann. Mag. Nat. Hist., 4th ser., 1874, 14, p. 2, pi. 3, figs. 3, 4. Phyllograptus stella Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 658, pi. 34, fig. 6. Lower Ordovician: England (Skiddaw); Wales (Arenig); Scandinavia; Aus- tralia; Deepkill, Rensselaer County, New York (Deepkill, Didymograptus bifidus zone); Point Levis, Quebec (Levis, Diplograptus dentatue zone); Arkansas. Didymograptus caduceus nanus Ruedemann. Didymograptus caduceus nanus Ruedemann, Mem. New York State Mue., 7, pt. 1, 1904, p. 698, pi. 15, figs. 8, 9, text fig. 90. Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptus den- tatus zone); Point Levis, Quebec (Levis, D. dentatus zone); Arkansas. Didymograptus cuspidatus Ruedemann. Didymograptus cuspidatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 684, 685, pi. 13, fig. 16, text figs. 79, 80. Canadian (Deepkill, Diplograptus dentatus zone): Mt. Moreno, Columbia County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 431 DIDYMOGRAPTUS DIVARICATES Nicholson. See Dicellograptus divaricatus. DIDYMOGRAPTUS? ELEGAN8 Ruedemann. See Monograptus elegans. Didymograptus ellesae Ruedemann. Didymograptus (Leptograptus) (part.) Ruedemann, New York State Pal. Ann. Rep., 1902, p. 589. Didymograpttis ellesi Ruedemann, Mem. New York State Mus., 7, 1904, pt. 1, pp. 682, 683, pi. 14, figs. 22-24, text figs. 75, 76. (Corrected to ellesse in 1908, Mem. 11, pt. 2, p. 134.) Canadian (Deepkill, Didymograptus bifidus zone): Deepkill, Rensselaer County, New York. Didymograptus euodus Lapworth. Didymograptus euodus Lapworth, Quart. Jour. Geol. Soc. London, 31, 1875, p. 645, pi. 35, fig. la-c. Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., p. 21, pi. 1, figs. lOa, b. Ordovician (Lower Llandeilo): Abereiddy Bay, St. David's District, Wales. Canadian (Upper Tetragraptus zone): Twelve miles west of Little Rock, Arkansas. Didymograptus extensus (Hall). GraptolithuK extensus Hall, Geol. Surv. Can. Rep., 1858, p. 132; Canadian Nat. Geol., 3, 1858, p. 166; Geol. Surv. Canada, dec. 2, p. 80, pi. 2, figs. 11-16. Graptolithus (Monoprion) extensus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 195, pi. 3, fig. 12; rev. ed., 1870, p. 225, pi. 3, fig. 12, p. 228. Didymograptus extensus Nicholson, Ann. Mag. Nat. Hist., 4th ser., v. 1870, 5, 341, pi. 7, figs. 2, 2a. Hopkinson, Quart. Jour. Geol. Soc., 31, 1875, p. 642, pi. 33, figs. la-Id. Brogger, Die Sil. Etagen 2, 3, 1882, p. 40, Kristiania. Herrmann, Geol. Mag., dec. 3, 3, 1886, p. 14. Lapworth, Proc. and Trans. Roy. Soc. Can., 4, 1887, pp. 168, 184. Ami, Geol. Sur. Can. Rep., 2d ser., 3, pt. 2, 1889, p. 116k. Roemer and Freeh, Leth. Pal., 1, 1897, p. 591. Elles, Quart. Jour. Geol. Soc., London, 54, 1898, p. 504. Tornquist, Lunds Univ. Arsskrift, 37, Af. 2, Nr. 5, 1901, p. 14, pi. 1, figs. 25-30. Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 8, pi. 1, figs, la, b., text figs. 4a-d. Ruede- mann, New York State Pal., Ann. Rep., 1902, p. 556; Mem. New York State Mus., 7, pt. 1, 1904, pp. 668-671, pi. 13, figs. 17, 18; pi. 14, figs. 1-4; text figs. 62-65. Didymograpsus extensus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.). Graptolites (Didymograptus) extensus McCoy, Geol. Surv. Victoria, Prodr. Pal., dec. 2, 1875, p. 29, pi. 20, figs. 1, la. Graptolithus constrictus Hall (part), Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 76, pi. 1, figs. 23-27. Canadian: Point Levis, Quebec (Levis, Didymograptus zone) ; Deepkill, Rensse- laer County, New York (Deepkill, Tetragraptus zone); Arkansas; South Scotland; Wales (Arenig); Wales (Skiddaw) ; Christiania; Scania; Australia. Didymograptus extenuatus (Hall). Graptolithus extenuatus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 75, pi. 1, figs. 21, 22. Graptolithus (Monoprion) extenuatus Hall, 20th Rep. New York State Cab. Hist., 1868, p. 226; rev. ed., 1870, p. 241. Didymograpsus extenuatus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.). Didymograptus extenuatus Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. li (gen. ref.). Canadian (Levis, Diplograptus dentatus zone): Point Levis, Quebec. 432 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Didyniograptus flliformls Tullberg. Didymograptus filiformis Tullberg, Geol. Foren. Stockh. Forh., 5, 1880, 42, pi. 2, figs. 8-11. Lapworth, Ann. Mag. Nat. Hist., 5th ser., 6, 1880, p. 20. Brogger, Die sil. Etagen 2, 3, 1882, p. 39. Tullberg, Sver. Geol. Und., Afh. och upps. ser. C, 50, 1882, p. 22. Tornquist, Lunds Univ. Arsskrift, 37, Af. 2, nr. 5, 1901, pi. 3, figs. 6-9. Elles and Wood, Mon. British Grapt., pt, 1, Pal. Soc., 1901, p. 32, fig. 20. Ruedemann New York State Pal., Ann. Rep., 1902, p. 556; Mem. New York State Mus., 7, pt. 1, 1904, pp. 686, 687, pi. 14, figs. 8-14. Lower Ordovician : Scania, Westrogothia; Norway; Scotland (Arenig); Deepkill, Rensselaer County, and Mount Moreno, near Hudson, New York (Deep- kill, Tetragraptus and Diplograptus dentatus zones). Didymograptus forcipiformis Ruedemann. Didymograptus forcipiformis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 699, 700, pi. 15, figs. 10-13; text fig. 91. Canadian: Mount Moreno, Columbia County, New York (Deepkill, Diplograptus dentatus zone); Point Levis, Quebec (Levis, D. dentatus zone). DIDYMOGRAPTUS FRUTICOSUS Etheridge. See Tetragraptus fruticosus. Didymograptus furcillatus Lapworth. Didymograptus furcillatus Lapworth, Quar. Jour. Geol. Soc. London, 31, 1875, p. 649, pi. 35, figs. 3a-3d. Didymograpsus murchisoni furcillatus Gurley, Jour. Geol., 4, 1897, p. 97. Ordovician: Wales (Lower Llandeilo) : Point Levis, Quebec (Levis). DIDYMOGRAPTUS GIBBERULUS Nicholson. See Didymograptus (Isograptus) caduceus. Didymograptus gracilis Tornquist. Didymograptus gracilis Tornquist, Under, ofver. Siljans. Graptoliter 1 (Aftryck ur Lunds Univ. Arsskrift. 26), 1891, p. 17, pi. 1, figs. 9-12. Holm, Geol. Foren. Stockh. Forh. 17, H 3, 1895, pi. 1, figs. 7, 8. Elles, Quar. Jour. Geol. Soc., 54, 1895, p. 506. Elles and Wood, Mon. British Grapt., pt. 1, 1901, p. 24, pi. 2, fig. 2. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 679- 681, figs. 15-21, pi. 14. Didymograptus (Leptograptus) gracilis Ruedemann, New York State Pal., Ann. Rep., 1902, p. 589, fig. 17. Lower Ordovician: Dalarne, Sweden (Phyllograptus shales); England (Skid- daw); Deepkill, Rensselaer County, etc., New York (Deepkill, Didymograp- tus bifidus zone). Didymograptus incertus Ruedemann. Didymograptus sp. nov. Ruedemann, New York State Pal. , Ann. Rep. , 1902, p. 570. Didymograptus incertus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 700, 701, pi. 15, fig. 14, text fig. 92. Canadian (Deepkill, Diplograptus dentatus zone): Deepkill, Rensselaer County, New York. Didymograptus indentus (Hall). Graptolithus indentus Hall, Canadian Nat. Geol., 3, 1858, p. 163; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 128; Geol. Surv. Canada, dec. 2, 1865, p. 74, pi. 1, fig. 20. Graptolithus (Monoprion) indentus Hall, 20th Rep. New York State Cab. Hist., 1868, p. 226; rev. ed., 1870, p. 260; p. 223. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 433 Didymograptus Indentus Continued. Didymograptus indentus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 647, pi. 33, figs. 7a-7c. Barrels, Ann. Soc. Geol. du Nord, 20, 1892, p. 93. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 99. Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 510. Canadian: Point Levis, Quebec (Levis, Didymograptus zone); St. John, New Brunswick (Bretonian-Div. C3d); Wales (Skiddaw). DIDYMOGRAPTUS INDENTUS var. NANUS Lapworth. See Didymograptus nanus. Didymograptus nanus (Lapworth). Didymograpsus gem inns Nicholson, Quar. Jour. Geol. Soc., 24, 1868, p. 134, pi. 5, figs. 8, 9; Ann. and Mag. Nat. Hist., ser. 4, 5, 1870, p. 346, fig. 6b. Didymograptus indentus var. nanus Lapworth, Quar. Jour. Geol. Soc., 31, 1875, p. 647, pi. 33, fig. 7d; pi. 35, figs. 4a-c. Elles, Quar. Jour. Geol. Soc., 54, 1898, p. 511. Didymograptus nanus Elles and Wood, Mon. British Grapt. pt. 1, Pal. Soc., 1901, p. 47, pi. 4, figs. 5a-h. Ruedemann. Mem. New York State Mus., 7, pt. 1, 1904, pp. 692, 693, pi. 15, figs. 4, 5; text fig. 88. Lower Ordovician: Wales (Arenig); England (Skiddaw); Deepkill, Rensselaer County, New York (Deepkill, Didymograptus bifidus zone). Didymograptus nicholsoni pi anus Elles and Wood. Didymograptus nicholsoni var. planus Elles and W T ood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 29, pi. 2, figs. 5a, b. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 685, 686, pi. 13, figs. 10-14, text figs. 82, 83. Lower Ordovician: England (Skiddaw); Deepkill, Rensselaer County, New York (Deepkill, Tetragraptus zone). Didymograptus nitidus (Hall). Graptolithus nitidus Hall, Geol. Surv. Canada Rep., 1857, 1858, p. 129; Can. Nat. and Geol., 3, 1858, p. 163; Canadian Org. Rem., dec. 2, 1865, p. 69, pi. 1, figs. 1-9. Graptolithus (Monoprion) nitidus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226, pi. 3, figs. 8, 9; rev. ed., 1870, p. 234, pi. 3, figs. 8, 9, p. 223. Didymograptus nitidus Nicholson (part.), Quar. Jour. Geol. Soc. London, 24, 1868, p. 135. Ether idge, jr., Ann. Mag. Nat. Hist., 4th ser., 14, 1874, 6, pi. 3, fig. 20. Herrmann, Geol. Mag., dec. 3, 3, 1886, p. 15. Barrois, Ann. de la Soc. Geol. du Nord, 1892, 20, p. 91. Matthew, Trans. Roy. Soc. Can., 10, sec. 4, 1893, p. 98. Elles (part.), Quar. Jour. Geol. Soc., 54, 1896, 499-502; p. 500, fig. 19; p. 501, fig. 20. Roemer and Freeh, Leth Geog., 1, Theil, LethPal., 1, Lief., 3, 1897, p. 591, fig. 160. Elles, Quart. Jour. Geol. Soc. London, 34, 1898, p. 499, figs. 19, 20, p. 500. Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 10, pi. 1, figs. 2a-c, figs. 5a-d. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 554, 556; Mem. New York State Mus., 7, pt. 1, 1904, pp. 671-674, pi. 13, figs. 1-4; pi. 14, figs. 5, 6, text figs. 66-70. Grabau and Shi- mer, N. A. Index Fossils, 1, 1906, p. 31, fig. 47a, 49a. Hoek, Neues Jahrb. Min. Geol. Pal., 34, 1912, p. 220, pi. 13, figs. 8, 9. Didymograpsus (Graptolithus) nitidus Nicholson, Mon. British Grapt., 1872, p. 80, fig. 45. Canadian: Point Levis, Quebec (Levis, Didymograptus zone); St. John, New Brunswick (Bretonian Div. C3d); Deepkill, Rensselaer County, New York (Deepkill, Tetragraptgs zone); Arkansas; England (Skiddaw); France; Australia; Norway; Argentina. 84243 Bull. 92 -15 28 434 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Didymograptus nitidus grandis Ruedemann. Didymograptus nitidus var. grandis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 674, pi. 13, fig. 5. Canadian (Deepkill, Tetragraptus zone): DeepkilJ, Rensselaer County New York. Didymograptus patulus (Hall). Graptolithus patulus Hall, Geol. Surv. Can., Rep. for 1857, 1858, p. 131; Can. Nat. andGeol., 3, 1858, p. 165; Geol. Surv. Canada, Canadian Org. Rem., dec. 2, 1865, p. 71, pi. 1, figs. 10-15. Didymograptus patulus Hopkinson, Quar. Jour. Geol. Soc., 31, 1875, 644, pi. 33, figs. 4a-e. Linnarsson, Sver. Geol. Und. Afh. och Upps., ser. C, No. 31, 1879, p. 5. Brogger, Die sil. Etagen 2, 3, Kristiania, 1882, p. 39. Herrmann (part.), Geol. Mag., dec. 3, 3, 1886, p. 14. Matthew, Proc. and Trans. Royal Soc. Can., 10, sec. 4, 1893, p. 98; ibid., 11, 1894, p. 114. Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc., 1901, p. 13, pi. 1, figs. 8a-c; text figs. 8a-b. Ruede- mann, New York State Pal. Ann. Rep., 1902, p. 556; Mem. New York State Mus., 7, pt. 1, 1904, pp. 674-676, pi. 13, figs. 8, 9; pi. 14, fig. 7; text figs. 71-73 (73 on p. 677). Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 31, figs. 47b, 49b. Canadian: Point Levis, Quebec (Levis); St. John, New Brunswick (Bretonian Div. C3d); Deepkill, Rensselaer County, New York (Deepkill, Tetragraptua zone). Didymograptus pennatulus (Hall). Graptolithus pennatulus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 7, fig. 1; p. 82, pi. 3, figs. 1-8; pi. 5, fig. 9. Graptolithus (Didymograptus) pennatulus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 173, fig. 2; rev. ed., 1870, p, 206. fig. 2. Graptolithus ((Monoprion) pennatulus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 223. Didymograptus pennatulus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 643, pi. 33, figs. 3a-3e. Zittel, Handb. Pal., 1, 1879, p. 298, fig. 204. Barrois, Ann. Soc. Geol. du Nord, 20, 1892, p. 90. Elles and Wood, Mon. British Grapt., Pal. Soc., 1901, p. 18, pi. 1, fig. 7. Didymograpsus pennatulus Gurley, Jour. Geol., 4, 1896, p. 97 (gen. ref.). Canadian: Point Levis, Quebec (Levis, Didymograptus zone); England (Arenig). Didymograptus perflexus Gurley. Didymograpsus perflexus Gurley, Jour. Geol., 4, 1896, p. 66. Canadian: Summit, Nevada. Cotypes.C&t. No. 54344, U.S.N.M. DIDYMOGRAPTUS RECTUS Ruedemann. See Monograpsus rectus. DIDYMOGRAPTUS SAGITTARIUS Dale. See Didymograptus sagitticaulis. Didymograptus sagitticaulis Gurley. Graptolithus Sagittarius Hall (not Hisinger), Pal. New York, 1, 1847, p. 272, pi. 74, fig. 1. Chapman, Canadian Jour., n. s., 1, 1856, p. 390, fig. 6. Walcott, Trans. Albany Inst., 10, 1883 (adv. sheet, 1879, p. 34). Monograptus Sagittarius Whitfield, Am. Jour. Sci., 3d ser., 26, 1883, p. 380. Didymograptus Sagittarius Lapworth, Trans. Roy. Soc. Canada, 5, see. 4, 1886, p. 180f, 183f; Geol. Surv. Canada Ann. Rep., 2d ser., 3, pt. 1, 1889, p. 95B. Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 338. Gurley, Geol. Surv. Arkan- sas, Ann. Rep., 3, p. 411. Dale, Bull. U. S* Geol. Surv., 242, 1904, p. 33. Didymograpsus sagitticaulis Gurley, Jour. Geol., 4, 1896, p. 68. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 435 Didymograptus sagitticaulis Continued. Didymograpeua convexus Gurley, Jour. Geol., 4, 1896, p. 67, pi. 5, fig. 8. Didymograptus sagitticaulia Ruedemann, Mem. New York State Mus., 11, pt. 2- 1908, pp. 248-251, pi. 14, fig. 3, text figs. 151-155. Chazyan (Normanskill): Kenwood, Stockport, and near Poughkeepsie, New York; Canada; Arkansas (Stringtown); Tennessee (Athens). :otypS.~ Cat. No. 54255, U.S.N.M. (Gurley types of D. convexus.) Didymograptus serratulus (Hall). Graptolithus serratulus Hall, Pal. New York, 1, 1847, p. 274, pi. 74, fig. 5a, b. Chapman, Canadian Jour., n. s., 1, 1856, p. 390, text fig. 8 Hall, New York State Cab. Nat. Hist., 20th Rep., 1867, p. 223f. Walcott, Trans. Albany Inst., 10, 1883, p. 35 (adv. sheets, 1879). ?Graptolithus (Monograptus) serratulus Whitfield, U. S. Geog. Surv., 100th Mer., Lieut. Wheeler's Rep., 4, 1877, p. 19. Graptolithus (Monoprion) serratulus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226; rev. ed., 1870, p. 260. Didymograptus serratulus Walcott, Geol. Soc. Arner.,Bull. 1, 1890, p. 338. Gurley, Geol. Surv. Arkansas, Ann. Rep., 3, 1892, p. 411. Roemer and Freeh, Leth. Pal., 1, 1897, p. 589. Ruedemann, Bull. New York State Mus., 42, 1901, pp. 497, 541. Elles and Wood, Mon. British Grapt., pt. 1, 1901, p. 29, pi. 2, figs. 7a, b, text fig. 18a-b. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 251-253, pi. 14, fig. 4, text figs. 156-159. Didymograpsus serratulus Pictet, Traite de Pal., 2d ed., 4, 1857, p. 474, pi. 108, fig. 23. Middle Ordovician: Kenwood, Stockport, etc., New York; Arkansas (Normans- kill); Great Britain (Glenkiln). Didymograptus serratulus juvenalis Ruedemann. Didymograptus serratulus juvenalis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 252, fig. 156. Chazyan (Normanskill): Kenwood, New York. DIDYMOGRAPTUS SEXTANS Nicholson. See Dicellograptus sextans. Didymograptus similis (Hall). Graptolithus similis Hall, Geol. Surv. Canada, dec. 2, 1865, p. 78, pi. 2, figs. 1-5. Didymograpsus similis Gurley, Jour. Geol., 4, 1896, p. 295 (gen. ref.). Didymograptus similis Ruedemann, New York State Pal., Ann. Rep., 1902, pp. 566, 567; Mem. New York State Mus., 7, pt. 1, 1904, pp. 677-679, pi. 14, figs. 25-29, text figs. 73, 74 (73 on p. 678). Canadian: Point Levis, Quebec (Levis, Didymograptus zone); Deepkill, Rens- selaer County, New York (Deepkill, Didymograptus and Diplograptus zones); Wales (Arenig); Norway; Sweden. Didymograptus spinosus Ruedemann. Didymograptus spinosus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 688, 689, pi. 14, figs. 30-32, text figs. 84, 85. Canadian (Deepkill, Diplograptus dentatus zone): Mount Moreno, Columbia County, New York. Didymograptus subtenuis (Hall). Graptolithus tenuis (Portlock?) Hall, Pal. New York, 1, 1847, p. 272, pi. 74, figs. 2a-d. Graptolithus subtenuis Hall, in Miller's Amer. Pal. Foss., lated., 1877, p. 244. Walcott, Trans. Albany Inst., 1883, 10 (adv. sheets, p. 35). Gurley, Jour. Cincinnati Soc. Nat. Hist., 16, 1892, p. 156. 436 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Didymograptus subtenuls Continued. Dicellograptus tenuis Lapworth, Roy. Soc. Canada Trans. 5, sec. 4, 1886, p. 178. Leptograptus tenuis Lapworth, Roy. Soc. Canada Trans., 10, sec. 4, 1886, p. 183. Leptograptus subtenuis Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 338. Leptograpsus subtenuis Gurley, Jour. Geol., 4, 1896, p. 296 (gen. ref.). Didymograptus tennis Ruedemann, Bull. New York State Mus., 42, 1901, p. 540f. Didymograptus subtenuis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 253-255, pi. 14, figs. 1, 2, text figs. 160, 161. Chazyan (Normanskill) : Kenwood, Mount Moreno, and Stockport, New York; Canada. Didymograptus superectes Lapworth. Didymograptus superectes Lapworth, Cat. West. Scot. Foss., pi. 3, fig. 74, a, b; Proc. Belfast Field Club, 1877, p. 142, pi. 7, figs. 15a, b. Elles and Wood, Mon. British. Grapt., Pal. Soc., pt. 1, 1901, p. 19, pi. 1, figs. 9a, b. Middle Ordovician: South Scotland (Glenkiln); Oklahoma (Xormanskill-String- town). DIDYMOGRAPTUS TENUIS Ruedemann. See Didymograptus subtenuis. DIDYMOGRAPTUS (GONIOGRAPTUS) THUREAUI McCoy. See Goniograptus thureaui. Didymograptus tornquisti Ruedemann. Didymograptus tornquisti Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 688, pi. 13, figs. 6, 7. Canadian (Deepkill, Didymograptus bifidus zone): Deepkill, Rensselaer County, New York. DIDYMOPORA Ulrich. See Fistulipora McCoy. DIKELOCEPHALUS Owen. Genotype: D. minnesotensis Owen. Dikelocephalus Owen, Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, p. 573. Billings, Canadian Nat. Geol., 5, 1860, p. 306. Hall, 16th Ann. Rep. New York State Cab. Nat. Hist., 1863, p. 137. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 399. Chapman, Expos. Min., Geol. Canada, 1864, p. 137. Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 303. Hall, Trans. Albany Inst., 5, 1867, p. 116. Hall and Whitfield, U. S. Geol. Surv. Expl. 40th Parl., 4, 1877, p. 225. Salter, Mem. Geol. Surv. Great Britain, 3, 2d ed., 1881, p. 497. Whitfield, Geol. Wisconsin, 4, 1882, p. 200. Zittel, Handb. Pal., 2, 1885, p. 596. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 192; Zittel- Eastman Textb. Pal., 1, 1900, p. 629. Raymond, ibid., 2d ed., 1913, p. 720. Dikellocephalus Dames, Richthofen's China, Berlin, 4, 1883, p. 5. Koken, Die Leitfossilien, Leipzig, 1896, p. 17, fig. 10, fig. 8. Dicelocephalus Barrande, N. Jahrb. f. Min., 1853, p. 336. Dicellocephalus Whitfield, Ann. Rep. Wisconsin Geol. Surv., 1878, p. 63. Miller, N. A. Geol. Pal., 1889, p. 543. Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 10. Berkey, Amer. Geol., 21, 1898, p. 290. DIKELOCEPHALUS AFFINIS Billings. See Platycolpus afiinis. DIKELOCEPHALUS BARABUENSIS Whitfield. See Platycolpus barabuensis. DIKELOCEPHALUS BELLI Billings. See Anomocarella belli. DIKELOCEPHALUS CORAX Billings. See Apatokephalus corax. DIKELOCEPHALUS CRISTATUS Billings. See Conokephalina? cristatus. DIKELOCEPHALUS DEVINEI Billings. See Ptychoparia? devinei. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 437 DIKELOCEPHALUS EATONi Whitfield. See Platycolpus eatoni. DIKELOCEPHALUS HARTii Walcott (1909). See Saukia stosei. Dikelocephalus hartti (Walcott). Conocephalites Hartti Walcott, 32d Rep. New York State Mus. Nat. Hist., 1880, p. 130. Dicellocephalus hartti Walcott, Bull. U. S. Geol. Siirv., 30, 1886, p. 21. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 199, figs. Walcott, Smiths. Misc. Coll., 57, 1912, p. 273, pi. 44, figs. l-7a. Dikelocephalus hartti Walcott, Smiths. Misc. Coll., 57, No. 13, 1914, p. 368, pi. 63, figs. 1-7, 7a. Ozarkian or Upper Cambrian: Near Saratoga Springs (Hoyt), and near Cha- teaugay, New York (top of Potsdam). Cotypes. Cat. Nos. 58571-58577, U.S.N.M. DIKELOCEPHALUS HISINGERI Billings. See Lisania? hisingeri. DIKELOCEPHALUS MAGNIFICUS Billings. See Hungaia magnifica. DIKELOCEPHALUS MEGALOPS Billings. See Conokephalina megalops. Dikelocephalus? missisquoi Billings. Dikelocephalus Missisquoi Billings, Pal. Foss., Geol. Surv. Canada, 1865, p. 199. Canadian (Beekmantown): Philipsburg, Quebec. DIKELOCEPHALUS NEWTONENSIS Weller. See Calvinella newtonensis. DIKELOCEPHALUS OWENI Billings. See Anomocarella? oweni. DIKELOCEPHALUS PAUPER Billings. See Ptychoparia? pauper. DIKELOCEPHALUS PLANIPRONS Billings. See Anomocarella? planifrons. DIKELOCEPHALUS SELECTUS Billings. See Ptychaspis? selectus. DIKELOCEPHALUS SESOSTRIS Billings. See Ptychaspis sesostris. Dikelocephalus tribulis (Walcott). Dicellocephalus tribulis Walcott, Smiths. Misc. Coll., 57, 1912, p. 274, pi. 44, figs. 8,8a. Dikelocephalus tribulis Walcott, Smiths. Misc. Coll., 57, 1914, p. 372, pi. 63, figs. 8-10, lOa. Ozarkian or Upper Cambrian (Hoyt): Near Saratoga Springs, New York. Holotype.Czt. No. 58578, U.S.N.M. DILOBELLA Ulrich. Genotype: D. typa Ulrich. Dilobella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 672. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 347. Dilobella typa Ulrich. Dilobella typa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 673, pi. 46, figs. 30-34. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348, fig. 1658s, s', t. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425p. Bollia typa Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.). Black River (Decorah): St. Paul and Cannon Falls, Minnesota. Cotypes Cat. No. 41641, U.S.N.M. DIMEROCRINITES Phillips. See Dimerocrinus Phillips. 438 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DIMEROCRINUS Phillips. Genotype: D. decadactylus Phillips. Dimerocrinites Phillips, in Murchison's Sil. Syst., 1839, p. 674. Muller, Monats- ber. Berl. Akad., 1, 1841, p. 208. Dimerocrinus D 'Orbigny, Prodr. Pal., 1, 1850, p. 46; Cours elem. Pal., 2, p. 142. Roemer, Leth. geog., 1855, p. 237. Salter, Cat, Camb. Sil. Fosa., 1873, p. 120. Zittel, Handb. Pal., 1, 1879, p. 368. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, pp. 358, 371, 405 (Rev. Pal. pt. 2, pp. 184, 197, 231); ibid., 1885, p. 323. Carpenter, Phil. Trans. Royal Soc. London, 174, 1884, p. 928. Bather, Treatise on'Zool., pt. 3, Echinoderma, London, 1900, p. 198. Zittel, Grundzuge Pal., 1, 1910, p. 161. Springer, Zittel- Eastman Textb. Pal., 2d ed., 1913, p. 187. Thysanocrimis Hall, Pal. New York, 2, 1852, pp. 188, 355. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 317. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 262. Hall, 15th Rep. New York State Cab. Nat. Hist, for 1861, 1862, p. 125. Dujardin and Hupe, Hist. Nat. des Zoophytes, 1862, pp. 128, 131. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 398. Zittel, Handb. Pal., 1, 1879, p. 377. Carpenter, Phil. Trans. Royal Soc. London, 174, p. 928. Miller, N. A. Geol. Pal., 1889, p. 286. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 190. Wachsmuth, Zittel-Eastman Textb. Pal. 1, 1900, p. 145. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 70, fig. 36. Grabau, Bull. New York State Mus., 45, 1901, p. 155; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 155. Slocom, Field Columbia Mus., 2, No. 10, Geol. Ser., 1908, p. 299. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 547. (Genotype: T. liliiformis Hall.) Eucrinus Angelin, Icon. Grin., 1878, p. 24, pi. 6, figs. 8, 8a. Zittel, Handb. Pal., 1, 1879, p. 375. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, pp. 358, 370 (Rev. Pal., pt. 2, pp. 184, 196); ibid., 1885, p. 323. Ringue- berg, Ann. New York Acad. Sci., 5, 1890, p. 305 Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 199. Zittel, Grundzuge Pal., 1, 1910, p. 161. (Genotype: E. laevis Angelin.) Glyptaster Hall, Pal. New York, 2, 1852, p. 187; Trans. Albany Inst., 4, 1863, p. 202. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 373. Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 131. Zittel, Handb. Pal., 1, 1879, p. 375. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, pp. 358, 367 (Rev. Pal., pt. 3, pp. 184, 193). Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 259. Miller, N. A. Geol. Pal., 1889, p. 247. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 198. Zittel, Grundzuge Pal., 1910, p. 161. (Genotype: G. brachiatus Hall.) Dimerocrinus aculeatus (Hall). Thysanocrinus aculeatus Hall, Pal. New York, 2, 1852, p. 190, pi. 42, figs. 3a-d. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 317, pi. 100, fig. 13. Rhodocrinus (Thysanocrinus) aculeatus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 398. Clinton (Rochester): Lockport, New York. Dimerocrinus arborescens (Talbot). Thysanocrinus arborescens Talbot, Amer. Jour. Sci., 20, 1905, p. 23, pi. 1, fig. 2; text fig. 1. Helderbergian (Manlius transition beds, or Coeymans): North Litchfield, New York. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 439 Dlmerocrinus brachiattis (Hall). Glyptaster brachiatus Hall, Pal. New York, 2, 1852, p. 187, pi. 41, figs. 4a, b. Thysauocrinus brachiatus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 195, pi. 18, fig. 7. Clinton (Rochester): Lockport, New York. Dimerocrinus campanulatus (Slocom). Thysanocrinus campanulatus Slocom, Field Columbian Mus., Geol., ed. ser., 10, 1908, p. 299, pi. 85, figs. 20, 23. Niagaran (Racine) : Drainage Canal, near Lemont, Illinois. Dimerocrinus canaliculatus (Hall). Thysanocrinus canaliculatus Hall, Pal. New York, 2, 1852, p. 189, pi. 42, figs. " 2a-d. Rhodocrinus (Thysanocrinus) canaliculatus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 398. Clinton (Rochester): Lockport, New York. Dimerocrinus egani (Miller). Glyptaster egani Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 261, pi. 6, figs. 4, 4a, 4b; N. A. Geol. Pal., 1889, p. 247, fig. 311. Thysanocrinus egani Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 74, pi. 1, fig. 5. Niagaran (Racine): Bridgeport, Illinois. Dimerocrinus halli (Lyon). Rhodocrinus Halli Lyon, Proc. Acad. Nat. Sci. Philadelphia, 1861, p. 412, pi. 4, fig. 5a, b. Thysanocrinus Halli Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 196, pi. 13, fig. 9a, b. Niagaran (Louisville): Near Louisville, Kentucky. DIMEROCRINUS IMMATURUS Wachsmuth and Springer. See Gazacrinus immaturus. Dimerocrinus inornatus (Hall). Glyptaster inornatus Hall, Trans. Albany Inst., 4, 1863, p. 205; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 207, fig. 3; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 14, figs. 1-6; Mus. ed., 1879, p. 134, pi. 14, figs. 1-6; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 261, fig. 3; also p. 263, pi. 13, figs. 1-6. Thysanocrinus inornatus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Har- vard, 20, 1897, p. 193, pi. 18, figs. 6a-d; pi. 19, fig. 5. Grabau and Shimer, N. A. Index Fossils, 11, 1910, p. 547. Niagaran: Waldron and Hartsville, Indiana; Newson, Tennessee (Waldron); ?Racine, Wisconsin (Racine). Dimerocrinus IHiiformis (Hall). Thysanocrinus liliiformis Hall, Pal. New York, 2, 1852, p. 188, pi. 42, figs, la-f. Grabau, Bull. New York State Mus., 45, 1901, p. 156, fig. 50; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 156, fig. 50. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 199, pi. 18, fig. 4. Rhodocrinus (Thysanocrinus) liliiformis Shumard, Trans. Acad. Sci. St. Louis (Cat., Pal. Foss.) 2, 1866, p. 398. Dimerocrinus liliiformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 373. (Rev. Pal., pt. 2, p. 199.) Clinton (Rochester): Lockport, New York. 440 BULLETIN f)2, UNITED STATES NATIONAL MUSEUM. Dlmerocrinus lockportensls (Ringueberg). Glyptaster (Eucrinus) lockportensis Ringueberg, Annals New York Acad. Sci., 5, 1890, p. 304, pi. 3, fig. 4. Niagaran (Lockport, Gasport member): Lockport, New York. Dimerocrinus milliganae (Miller and Gurley). Glyptaster milliganae Miller and Gurley, Bull., Illinois State Mus. Nat. Hist., 10, 1896, p. 87, pi. 5, figs. 7-9. Niagaran (Brownsport) : Decatur County, Tennessee. Dimerocrinus occidentalis (Hall). Glyptaster occidentalis Hall, Trans. Albany Inst, 4, 1863, p. 204 (?bstract, p. 10); 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1865), p. 326, pi. 10 (1), fig. 3; rev. ed., 1870, p. 369, pi. 10, fig. 3; 20th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 13, figs. 7-11; Mus. ed., 1879, p. 133, pi. 13, figs. 7-11. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 370 (Rev. Pal. pt. 2, p. 196). Hall, llth Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 262, pi. 12, figs. 7-11. Whitfield, Geol. Wisconsin, 4, 1882, p. 281, pi. 16, figs. 3, 4. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Miller, N. A. Geol. Pal., 1889, p. 247, fig. 312. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 194, pi. 18, fig. 5a-c. Thysanocrinus occidentalis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 73, pi. 1, figs. 6, 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 547. Glyptaster occidentalis var. crebescens Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 133; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 263. Niagaran: Waldron and Hartsville, Indiana (Waldron): Racine, Wisconsin; Bridgeport and Ha\vthorne, Illinois (Racine). Dimerocrinus pentangularis (Hall). Glyptaster pentangularis Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 326, pi. 10 (1), fig. 4 (extras, 1865); ibid., rev. ed., 1870, p. 369, pi. 10, fig. 4. Thysanocrinus pentangularis Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4, pt. 1, 1900, p. 70, pi. 1, figs. 8-11. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 547. Niagaran (Racine): Racine, Wisconsin; Bridgeport and Hawthorne, Illinois. Dimerocrinus roemeri (Troost). Gilbertsocrinites roemeri Troost MS., 1850. Dimerocrinus roemeri (Troost) Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 101, pi. 15, fig. 4. Niagaran (Brownsport): Decatur and Perry Counties, Tennessee. Holotype. Cat. No. 39968, U.S.N.M. Dimerocrinus waldronensis (Miller and Dyer). Cyathocrinus waldronensis Miller and Dyer, Cont. to Pal., 2, 1878, p. 6, pi. fig. 9. Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 1896, p. 49, pi. 3, figs. 19, 20. Miller, N. A. Geol. Pal., 2d App., 1897, p. 741, fig. 1330. Dimerocrinus waldronensis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia., 1885, p. 323 (Rev. Pal., pt. 3, sec. 1, p. 101). Macrostylocrinus waldronensis Wachsmuth and Springer, ibid., 1886, p. 149 (Rev. Pal.,pt. 3, sec. 2, p. 225). Niagaran (Waldron): Waldron, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 441 DIMORPHOGRAPTUS Lapworth. Genotype: D. elongatus Lapworth. Dimorphograptus Lapworth, Geol. Mag., dec. 2, 3, 1876, p. 545. Elles and Wood, Mon. British Grapt., 8, 1911, p. 348. Dimorphograptus decussatus Elles and Wood. Dimorphograptus decussatus Elles and Wood, Mon. British Grapt., 8, 1911, p. 352, pi. 35, figs. 5a-e. Silurian: Scotland (Llandovery-Birkhill); Blaylock Mountain, Montgomery County, Arkansas (Blaylock) [Ulrich]. DINOBOLUS Hall. Genotype: Obolus conradi Hall. Dinobolus Hall, Notes on Some New or Imperfectly Known Forms among the Brach., (March) 1871, p. 4; ibid., 1872, p. 4. Davidson and King, Geol. Mag., 9, p. 442; Ann. Mag. Nat. Hist., 4th ser., 10, p. 248. Hall, 23d Rep. New York State Cab. Nat. Hist., 1873, p. 247. Hall and Whitfield, Pal. Ohio, 2, 1873, p. 130. Davidson and King, Quart. Jour. Geol. Soc. London, 30, 1874, p. 159. Zittel, Handb. Pal., 1, 1880, p. 668. Miller, N. A. Geol. Pal., 1889, p. 343. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 36, 46, 164; llth Ann. Rep. New York State Geol., 1894, p. 237. Koken, Die Leitfossilien, Leipzig, 1896, p. 231, fig. 190, 2. Schuchert, Zittel-Eastman Pal., 1, 1900, p. 306, 2d ed., 1913, p. 373. Grabau and Shimer, North Amer. Index Fossils, 1, 1907, p. 190. Obolellina Billings, Canadian Nat. Geol., 6, 1871, p. 222; ibid., 6, 1872, p. 326, figs. 1, 2; Amer. Jour. Sci., 3d ser., 3, 1872, p. 270. Conradia Hall (not Adams), 23d Rep. New York State Cab. Nat. Hist., 1873, p. 250. Davidson and King, Quart. Jour. Geol. Soc. London, 30, 1874, p. 159. Dinobolus canadensis (Billings). Obolus canadensis Billings, Canadian Nat. Geol., 3, 1858, p. 441, fig. 20-23 (not fig. 19=D. rnagnificus); Geol. Surv. Canada; Rep. Prog, for 1857, 1858, p. 189, figs. 20-23 (not fig. 19); Geol. Canada, 1863, p. 142, figs. 75. Obolellina canadensis Billings, Canadian Nat. Geol., 6, 1871, p. 222; ibid., 1872, p. 326, fig. 15; fig. 6, p. 329. Dinobolus canadensis Davidson and King, Quart. Jour. Geol. Soc. London, 30, 1874, p. 162, pi. 19, fig. 7. Black River (Leray): Pauquette's Rapids, etc., Canada. Dinobolus conradi (Hall). Obolus conradi Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 368, pi. 13, figs. 1, 2. Chamberlin, Geol. Wisconsin, 1, 1883, p. 192, fig. Obolus (Trimerella?) conradi Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 351, pi. 5, fig. 7. Trimerella conradi Dall, American Jour. Conch., 7, 1871, p. 83. Dinobolus conradi Hall, 23d Rep. New York State Cab. Nat. Hist., 1873, p. 247 (also extracts 1871, 1872). Davidson and King, Quart. Jour. Geol. Soc. London, 30, 1874, p. 160, pi. 18, figs. 1-5. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 130, pi. 7, figs. 3, 4. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 38, pi. 4B, figs. 13-24. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 428, pi. 1, fig. 8. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 190, fig. 255a. Niagaran: Port Byron, Illinois; Leclaire, Iowa; Racine and Grafton, Wisconsin (Racine); Crawford, Ohio; England; Gotland. Plexiotype.Ga,t. No. 52938, U.S.N.M. 442 BULLETIN J>2, UNITED STATES NATIONAL MUSEUM. Dinobolus magnificus (Billings). Obolus canadensis Billings (part), Geol. Surv. Canada, Rep. Prog, for 1857, 1858, p. 189, fig. 19 (not 20-23); Canadian Nat. Geol., 3, 1858, p. 441, fig. 19 (not figs. 20-23=0. canadensis). Obolellina magnificus Billings, ibid., n. ser., 6, 1872, p. 329, fig. 7. Dinobolus magnificus Davidson and King, Quart. Jour. Geol. Soc. London, 30, 1874, p. 164, pi. 19, fig. 8. Nicholson, Pal. Prov. Ontario, 1875, p. 17, fig. 6. Black River (Leray): Pauquette's Rapids, etc., Canada. Dinobolus(?) parvus Whitfield. Dinobolus? parvus Whitfield, Geol. Wisconsin, 4, 1882, p. 347, pi. 27, figs. 8-10. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 356, fig. 27. Whit eaves, Pal. Foss., 3, pt. 3, 1897, p. 166. Trenton: WTritewater, Wisconsin; Wykoff, Minnesota (Prosser); Lake Winnipeg, Canada. Plastotype.C&t. No. 45548, U.S.N.M. DINORTHIS Hall and Clarke. Genotype: Orthis pectinella Emmons. Dinorthis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 195-222. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 420 Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 266. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 252. Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 888. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 382. Plsesiomys Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 196; llth Ann. Rep. New York State Geol., 1894, p. 266. Schuchert, Zittel Textb. Pal., 1913, p. 382. (Genotype: Orthis subquadrata Hall.) Valcourea(subgenus of Plsesiomys) Raymond, Ann. Carnegie Mus., 7, 1911, p. 239, (Genotype: Plsesiomys strophomenoides Raymond.) Dinorthis carleyi (Hall). Orthis retrorsa Billings (not Salter), Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 136, fig. 113 (adv. sheets, 1862) (not fig.. 112=D. retrorsa). Meek, Pal. Ohio, 1, 1873, p. 92, pi. 11, fig. 7. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 37. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 532, figs. Mc- Creery, Amer. Geol. 5, 1890, p. 102. Plaesiomys retrorsa Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 197, 222; pi. 5A, figs. 14-16. Dinorthis retrorsa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 902, pi. 33, figs. 7-7d. Foerste, Amer. Geol., 31, 1903, p. 335 (loc. occ.). Orthis carleyi Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 120, fig.; 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 28, 29. Dinorthis carleyi Foerste, Ohio Nat., 12, No. 3, 1912, p. 453, pi. 22, fig. 8. Orthis kennicotti McChesney, New Pal. Fossils, 1861, p. 78. Richmond (Arnheim): Oxford, etc., Ohio; Indiana; Kentucky; Tennessee. Dinorthis carleyi insolens Foerste. Dinorthis carleyi-insolens Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 320, pi. 7, fig. 9. Richmond ( Waynesville) : Miltonville, etc., Ohio; Indiana. Dinorthis (Valcourea) deflecta (Conrad). Strophomena deflecta Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 332. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 70. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 198. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 443 Dinorthls (Valcourea) deflect a Continued. Strophomena recta Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 332. Hall, 12th Rep. New York State Cab. Nat. Hist,, 1859, p. 70. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 199. Leptsena deflecta Hall, Pal. New York, 1, 1847, p. 113, pi. 31B, fig. 5. Leptama recta Hall, ibid., 1847, p. 113, pi. 31B, fig. 6. Streptorhynchus rectus Miller, Amer. Pal. Foss., 1877, p. 134. Streptorhynchus deflectum Miller, N. A. Geol. Pal., 1889, p. 378. Plaesiomys deflecta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 197, 222, pi. 5A, figs. 28-34. Plaesiomys recta Hall and Clarke, ibid., 1892, pp. 197, 222. Plaesiomys loricula Hall and Clarke, ibid., 1892, pp. 197, 341, pi. 5A, figs. 31-34. Orthis (Dinorthis) deflecta Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 422, pi. 32, figs. 24-30. Orthis (Plaesiomys) loricula Hall and Clarke, 48th Rep. New York State Mus., 2, for 1895, 1897, p. 339, pi. 4, figs. 7-9; 14th Rep. State Geol. New York for 1894, 1897, p. 339, pi. 4, figs. 7-9. Dinorthis deflecta Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 252, fig. 303a-d. Black River: Mineral Point, Beloit, Janesville, Wisconsin; Dixon, Illinois; Minneapolis, St. Paul, etc., Minnesota; McGregor, Iowa; central Tennessee; Highbridge, Kentucky. Stone River: Central Tennessee. Dinorthis fontinalis (White). Strophomena fontinalis White, Wheeler's Expl. and Surv. West 100th Merid., 4, 1875, p. 54, pi. 3, fig. 4; Prelim. Rep., p. 10, 1874. Dinorthis fontinalis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 215. Middle Ordovician: Fish Spring, House Range, Utah. Cotypes. Cat. No. 17223, U.S.N.M. Dinorthis (Plaesiomys) iphigenia (Billings). Orthis iphigenia Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 133, pi. 110 (adv. sheets, 1862). Plsesiomys iphigenia Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Dinorthis iphigenia Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 215. Trenton: Ottawa, Ontario. Dinorthis meedsi (Winchell and Schuchert). Orthis meedsi Winchell and Schuchert, Amer. Geol., 9, April 1, 1892, p. 289. Orthis minnesotensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, April 9, 1892, p. 332, pi. 5, figs. 14-17. Orthis (Dinorthis) meedsi Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 427, pi. 32, figs. 39-42. Dinorthis meedsi Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 253, fig. 303e-h. Trenton (Prosser): Cannon Falls, Kenyon, Preston, etc., Minnesota; Decorah and McGregor, Iowa; Neenah and Oshkosh, Wisconsin. Dinorthis meedsi arctica (Schuchert). Orthis (Dinorthis) meedsi var. arctica Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 157, pi. 12, figs. 7, 8. Mohawkian: Head of Frobisher Bay, Baffin Land. Cotypes. Cat. No. 28152, U.S.N.M. 444 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dlnorthis meedsl germana (Winchell and Schuchert). Orthis meedsi var. germana Winchell and Schuchert, Amer. Geol., 9, 1892, p. 290. Orthis (Dinorthis) meedsi var. germana Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 428, pi. 32, figs. 43-15. Dinorthis meedsi germana Schuchert, Bull. IT. S. Geol. Surv., 87, 1897, p. 215. Trenton (Prosser): Cannon Falls, Kenyon, and Fountain, Minnesota. Dinorthis pectinella (Emmons). Orthis pectinella Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 394, fig. 2. Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 366, fig. 2. Hall, Pal. Xew York, 1, 1847, p. 123, pi. 32, fig. 10. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 193, pi. 9, figs. 10, 11, a, b. Billings, Can. Nat. Geol., 1, 1857, p. 205, fig. 5. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 818, fig. 602. Emmons, Manual Geology, 1860, p. 99, fig. 88. Billings, Geol. Canada, 1863, p. 165, fig. 147. Hitchcock, Geol. Vermont, 1, 1862, p. 294, fig. 202. Chapman, Canadian Jour., n. s., 7, 1862, p. Ill, fig. 92; ibid., 8, 1863, p. 199, fig. 184; Expos. Min., Geol. Canada, 1864, p. 115, fig. 91; p. 171, fig. 183. Chamberlin, Geol. Wis- consin, 1, 1883, p. 155, fig. Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 39, 40. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 59,7, figs. Orthis pectinella var. semiovalis Hall, Pal. New York, 1, 1847, p. 124, pi. 32, fig. 11. Miller, N. A. Geol. Pal., 1889, p. 359. Dinorthis pectinella Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 195, 222, 228, pi. 5, figs. 27-33. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 154, pi. 9, figs. 29, 30. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 253, fig. 303i-l. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 24, fig. 2. Orthis (Dinorthis) pectinella Winchell and Schuchert, Minnesota Geol. Survey, 3, 1893, p. 424, pi. 32, figs. 31-34. Whiteaves, Pal. Fossils, 3, pt. 3, 1897, p. 175. Orthis charlotte Winchell, 8th Rep. Geol. Nat. Hist. Surv. Minnesota, 1880, p. 67. Upper Black River and Early Trenton: Middleville, Trenton Falls, etc., Xew York; Pennsylvania; Mercer County, Kentucky; Ontario; Decorah, Iowa; St. Paul, Minneapolis, and Cannon Falls, Minnesota; Lake Winnipeg, Canada; Tennessee; Virginia. Dinorthis pectinella sweeneyi (N. H. Winchell). Orthis sweeneyi N. H. Winchell, 9th Rep. Geol. Nat. Hist. Surv. Minnesota, 1881, p. 117. Dinorthis sweeneyi Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 196, 222, 228, pi. 5, figs. 34-36. Orthis (Dinorthis) pectinella var. sweeneyi Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 426, pi. 32, figs. 35-38. Black River (Decorah): St. Paul, Cannon Falls, etc., Minnesota; Decorah and McGregor, Iowa. Dinorthis (Plaesiomys) platys (Billings). Orthis platys Billings, Canadian Nat. Geol., 4, 1859, p. 438, fig. 15; Geol. Canada, 1863, p. 129, fig. 54. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 218. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1893, p. 424. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 530, figs. Dinorthis platys Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 216. Plsesiomys platys Raymond, Ann. Carnegie Mus., 7, 1911, p. 238, pi. 35, figs. 13-14. Chazyan: Montreal, Quebec; Crown Point, Valcour Island, and Chazy, New - York (Crown Point); East Tennessee (Lenoir). BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 445 DINORTHIS PORCATA Schuchert (part). See Dinorthis (Pla^siomys) porcata aiitico- stiensis. Dinorthis (Plsesiomys) porcata anticostiensis (Shaler). Orthis porcata Billings (not McCoy), Pal. Fossils, 1, Geol. Siirv. Canada, 1865, p. 135, fig. Ill (adv. sheets) ; Geol. Canada, 1863, p. 312, fig. 319. Lesley, Geol. Siirv. Pennsylvania, Rep. P 4, 1889, p. 531, figs. Plsesiomys porcata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 197, 22, pi. 5A ? figs. 20, 21. Dinorthis porcata Schuchert (part), Bull. U. S. Geol. Surv., 87, 1897, p. 216. Orthis anticostiensis Shaler, Fossil Brach. of the Ohio Valley, 1887, p. 19, pi. 6. Richmond: English Head, etc., Anticosti (Ellis Bay); Stony Mountain, Mani- toba Stony Mountain). Dinorthis proavita (Winchell and Schuchert). Orthis proavita Winchell and Schuchert, Amer. Geol., 9, April 1, 1892, p. 290. Orthis petrae Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, April 9, 1892, p. 332, pi. 5, figs. 18-21. Orthis (Dinorthis) proavita Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 431, pi. 32, figs. 51-57. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 120. ?Whiteaves, Pal. Foss, 3, pt. 3, 1897, p. 176. Dinorthis proavita Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 216. Richmond: Spring Valley, Minnesota; Wilmington, Illinois; Lake Winnipeg, Manitoba; Texas; etc. Dinorthis (Plaesiomys) retrorsa (Salter). Orthis retrorsa Salter, Mem. Geol. Surv. Great Britain, 2, 1858, p. 373, pi. 27, figs. 3, 4. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 136, fig. 112 (not 113=D. carleyi) (adv. sheets, 1862). Plsesiomys retrorsa Ruedemann, Bull. New York State Mus., 162, 1912, p. 93, pi. 4, figs. 9-12. Middle Ordovician: Wales (Bala); Snake Hill, Saratoga County, New York, and Ottawa, Ontario (Trenton). DINORTHIS RETRORSA Cumings. See Dinorthis carleyi. DINORTHIS SCOVILLEI Foerste. See Plectorthis (Austinella) scovillei. Dinorthis (Valcourea) strophomenoides (Raymond). Plsesiomys strophomenoides Raymond, Amer. Jour. Sci., 4th ser., 20, p. 370. Valcourea strophomenoides Raymond, Ann. Carnegie Mus., 7, 1911, p. 240, pi. 35, figs. 15-19; pi. 36, fig. 1, text fig. 12. Chazyan: Valcour Island and Plattsburg, New York (Crown Point"** East Ten- nessee (Lenoir). Dinorthis (Plsesiomys) subquadrata (Hall). Orthis eubquadrata Hall, Pal. New York, 1, 1847, p. 126, pi. 32A, fig. 1; Geol. Wisconsin, 1, 1862, p. 54, figs. 1, 2. Meek, Pal. Ohio, 1, 1873, p. 94, pi. 9, fig. 2. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 38. White, 2d Ann. Rep. Indiana Bureau Stat. Geol., 1880, p. 484, pi. 1, figs. 3-5; 10th Rep. State Geol. Indiana, 1881, p. 116, pi. 1, figs. 3-5. Shaler, Foss. Brach. of the Ohio Valley, 1876, p. 22, pi. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 535, figs. Keyes, Geol. Surv. Missouri, 5, 1895, p. 60. ?0rthis subquadrata Billings, Geol. Canada, 1863, p. 165, fig. 146. Platystrophia subquadrata Hall, 36th Rep. New York State Mus. Nat. Hist., 1884, p. 75, pi. 3, fig. 4. 446 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Dinorthis (Plaesiomys) subquadrata Continued. Plsesiomya eubquadrata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 194, 196, 222, pi. 5A, figs. 17-19. Orthis (Dinorthis) subquadrata Wmchell and Schuchert, Geol. Minnesota, 3, 1893, p. 428, pi. 32, figs. 46-50. Whiteaves, Pal. Foss., 3, pt. 3, 1897, p. 176. Dinorthis subquadrata Hayes and Ulrich, U. S. Geol. Surv., folio 95, 1903, illus. sheet, figs. 7, 8. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 254, fig. 303m-o. Cumings, 32d Ann. Hep. Dep. Geol. Nat. Res. Indiana, 1907, p. 904, pi. 34, figs. 1-lb. Richmond: Ohio Valley; Spring Valley, Minnesota; Wilmington, Illinois; Warren and Jefferson Counties, Missouri; Lattners, Iowa; Iron Ridge, Wisconsin; Lake Winnipeg, Canada; Anticosti; Texas; etc. Plesiotypes Cat. No. 35454, U.S.N.M. (Hayes and Ulrich). DINORTHIS SWEENEYI Hall and Clarke. See Dinorthis pectinella sweeneyi. Dinorthis (Plaesiomys) ulrlchl Foerste. Dinorthis ulrichi Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 320, pi. 7, fig. 7a-c. Trenton (Flanagan): Near Becknerville, Clark County, Flanagan and Paris, Kentucky. DIONE Barrande. See Dionide Barrande. DIONIDE Barrande. Genotype: Dione formosa Barrande. Dione Barrande, Note Prelim. Sil. Syst. Boheme, 1846, p. 32. Dionide Barrande, Neues Jahrb. f. Min., pt. 4, 1847, p. 391, footnote; Syst. Sil. du Centre Boheme, 1, 1852, p. 640. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 510. Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 50. Nich- olson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 289. Zittel, Handb. Pal., 2, 1885, p. 594. Miller, N. A. Geol. Pal., 1889, p. 544. Koken, Die Leitfossilien, Leipzig, 1896, p. 15, text fig. 9, fig. 2. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 184, 186. Lindstrom, Kongl. Sven. Vet.- Akad. Handl., 34, No. 8, 1901, p. 32. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 510. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 711. Polytomurus Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (ex- tract), 1847, p. 37, pi. 3, fig. 16. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 12. Dionlde(?) perplexa Billings. Dionide? perplexa Billings, Cat. Sil. Foss. Anticosti, 1866, p. 67. Anticostian (Jupiter River): The Jumpers, Anticosti. DIORTCHOPORA Davis. Genotype: D. tenuis Davis. Diorychopora Davis, Kentucky, Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, expl. of pi. 74. Diorychopora tenuis Davis. Diorychopora tenuis Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 74, fig. 6. Niagaran (Louisville): Near Louisville, Kentucky. DIPHTPHTLLUM Lonsdale. Genotype: D. concinnum Lonsdale. Diphyphyllum Lonsdale, Murchison's Geol. Russia in Europe, 1, 1845, p. 622. McCoy, British Pal. Rocks Foss., 1854, p. 87. Billings, Canadian Jour., n. e., 4, 1859, p. 133. Dybowski, Archiv. f. Naturf. Liv-, Ehst. und. KurL, 5, 1874, p. 337. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 31. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 447 DIPHYPHYLLUM Continued. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 120. LindstrSm, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 15. Thomson and Nicholson, Ann. Mag. Nat. Hist., ser. 4, 17, 1876, p. 123. Zittel, Handb. Pal., 1, 1879, p. 231. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 357. Freeh, Pal. Abhandl., Dames and Kayser, 3, Heft 3, 1886, p. 94. Miller, N. A. Geol. Pal., 1889, p. 186. Sherzer, Amer. Geol., 7, 1891, pp. 290-295. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 157. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 25, 26. Diplophyllurn Hall, Amer. Jour. Sci. and Arts., 2d ser., 11, 1851, p. 399; Pal. New- York, 2, 1852, p. 115; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80. Grabau, Bull. New York State Mus., 45, 1901, p. 139; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 139. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, pp. 25, 26. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 73. (Genotype: D. caespitosum Hall.) Dlphyphyllum billings! Greene. Diphyphyllum billingsi Greene, Cont. Indiana Pal., 11, 1903, p. 98, pi. 31, figs. 2, 3. Niagaran( Louisville): Louisville, Kentucky. Dlphyphyllum caespitosum (Hall). Diplophyllum caespitosum Hall, Pal. New York, 2, 1852, p. 116, pi. 33, figs, la-r, 2. Grabau, Bull. New York State Mus., 45, 1901, pp. 139-140, fig. 33; Bull. Buffalo Soc. Nat. Hist., 7, 1901, p. 139, fig. 33. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 25. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 74, fig. 117. Diphyphyllum caespitosum Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80 (gen. ref.). Lambe, Ottawa Nat., 12, 1899, p. 240. Foerste, Proc. Boston Soc. Nat. Hist,, 24, 1890, p. 343. Lambe, Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2/1901, p. 158, pi. 13, figs. 3, 3a, 3b. Cyathophyllum pelagicum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 108 (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 34 (loc. ref.). Silurian: Lockport, etc., New York; Ontario (Lockport); Wisconsin (Racine and Guelph); Island of Anticosti (Becsie River, Gun River); Ontario (Cataract). Dlphyphyllum coralliferum (Hall). Diplophyllum coralliferum Hall, Pal. New York, 2, 1852, p. 322, pi. 72, figs. la-c. Diphyphyllum coralliferum Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80 (gen. ref.). Schuchert, Amer. Geol., 31, 1903, p. 163. (loc. occ.) Cayugan (Cobleskill) : Schoharie, etc., New York. Dlphyphyllum huronlcum Rominger. Diphyphyllum Huronicum Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 121, pi. 45, fig. 1. Eridophyllum huronicum Davis, Kentucky, Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 109, fig. 2; pi. 111. Niagaran: Point Detour, Michigan; Drummond Island; Louisville, Kentucky. Diphyphyllum Integumentum (Barrett). Diphyphyllum integumentum Barrett, Ann. New York Acad. Sci., 1, 1878, p. 123. WeUer, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p. 218, pi. 17, fig. 11. 448 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. Diphyphyllum in tegumen turn Continued. Diplophyllum integumentum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 106, pi. 10, fig. 1; pi. 15, fig. 9-10; pi. 16, figs. 15 and 17. Helderbergian (Decker Ferry): Two miles south of Tristates, New York. Upper Monroan (Anderdon and Amherstburg) ; Detroit Kiver area. Diphyphyllum? multicaule (Hall). Syringopora? multicaulis Hall, Pal. New York, 2, 1852, p. 119, pi. 33, fig. 3a-g. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 493, footnote. Diphyphyllum multicaule Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 122, pi. 45, figs. 3, 4. Sherzer, Amer. Geol., 6, 1890, p. 61. Lambe, Ottawa Nat,, 12, 1899, p. 241; Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 159, pi. 13, figs. 4, 4a-c. Synaptophyllum multicaule Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 105, pi., 12, fig. 6. Eridophyllum vennori Billings, Canadian Nat. Geol., n. s., 2, 1865, p. 430. Diphyphyllum vennori Miller, N. A. Geol. Pal., 1889, p. 186 (gen. ref.). Silurian: Lockport, etc., New York (Lockport); Michigan; Manitoulin Island, Lake Huron (Cataract). Upper Monroan (Amherstburg) : Detroit Kiver, opposite Amherstburg, Ontario. Diphyphyllum proliferum Foerste. Diphyphyllum proliferum Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 102, pi. 1, figs. 18A-d. Niagaran (Brownsport) : Near Linden; Brownsport Furnace and Savani Tennessee. DIPHYPHYLLUM RUGOSUM Rominger. See Eridophyllum rugosum. DIPHYPHYLLUM STOKESI Whiteaves. See Columnarta (Palaeophyllurn) stokesi. DIPHYPHYLLUM VENNORI Miller. See Diphyphyllum multicaule. DIPLASPIS Matthew. See Cyathaspis Lankester. DIPLEURA Green. See Homalonotus Koenig. DIPLOCERAS Conrad. See Endoceras Hall. DIPLOCLEMA Ulrich. Genotype: D. trentonense Ulrich. Diploclema Ulrich, Geol. Surv. Illinois, 8, 1890, p. 368; (Ulrich, in press), Miller, N. A. Geol. Pal., 1889, p. 300. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 262. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 1, 1894, p. 17. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900; p. 22. Grabau, Bull. New York State Mus., 45, 1901, p. 162; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 162. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 17; Zittel-Eastman Textb. Pal., 1913, p. 321. Diploclema sparsuin (Hall). Trematopora spar&a Hall, Pal. New York, 2, 1852, p. 155, pi. 40A, figs. 12a-d. Diploclema sparsum Ulrich, Geol. Surv. Illinois, 8, 1890, p. 369, pi. 53, fig. 10. Grabau, Bull. New York State Mus., 45, 1901, p. 162, fig. 57; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 162, fig. 57. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 17, pi. 5, figs. 6, 7; pi. 23, figs. 4-6. Clinton (Rochester): Lockport, etc., New York; Grimsby and Hamilton, Ontario. Anticostian (Gun River-Jupiter River) : Anticosti. Plesiotype.Gzt. No. 44071, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 449 Diploclema sparsum argutum Bassler. Diploclema sparsum var. argutum Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 17, 18, pi. 5, figs. 8, 9. Clinton (Rochester) : Lockport, New York. Holotype.Czt. No. 35557, U.S.N.M. Diploclema trentonense Ulrich. Diploclema trentonense Ulrich, Geol. Surv. Illinois, 8, 1890, p. 369, pi. 53, figs. 9-9c. Trenton: Trenton Falls, New York. Cotypes.Csit. No. 43251, U.S.N.M. DIPLOQRAPSUS AMPLEXICAULE Emmons. See Diplograptus (Glyptograptus) amplexi- caulis. DIPLOQRAPSUS ANTENNARIUS Nicholson. See Cryptograptus antennarius. DIPLOGRAPSUS CILIATUS Emmons. See Glossograptus arthracanthus. Diplograpsus foliosus Emmons. Undeterminable. Diplograpsus foliosus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 106, pi. 1, fig. 13; Manual Geology, 1860, p. 87, fig. 68. Mohawkian: Augusta County, Virginia. DIPLOGRAPSUS HUDSONICUS Nicholson. See Diplograptus hudsonicus. DIPLOGRAPSUS LACINIATA Emmons. See Diplograptus foliaceus. DIPLOGRAPSUS MUCRONATUS McCoy. See Lasiograptus mucronatus. DIPLOGRAPSUS OBLIQUIS Emmons. See Diplograptus foliaceus. Diplograpsus etenosus Gurley. Not recognized. Diplograpsus stenosus Gurley, Jour. Geol., 4, 1896, p. 78. Trenton (Magog): Magog, Quebec. DIPLOGRAPSUS WHITFIELDI Nicholson. See Glossograptus whitfieldi. DIPLOGRAPTUS McCoy. Genotype: Graptolithus foliaceus Murchison. Diplograpsus McCoy, Ann. Mag. Nat. Hist., 6, 1850, p. 270; British Pal. Rocks Foss., 1854, p. 3. Geinitz, Amer. Jour. Sci. Arts, 2d ser., 14, 1852, p. 128; Bull. Soc. Geol. France, 2d ser., 9, 1852, p. 187; Zeits. d. d. geol. Gesell., 3, 1852, p. 389. Richter, Zeits. d. d. geol. Gesell., 5, 1853, p. 455. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 104. Chapman, Canadian Jour., n. s., 1, 1856, p. 389; 6, 1861, p. 506; Expos. Min. Geol. Canada, 1864, p. 100. Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, pp. 9, 137; Mon. British Grapt., 1872, p. 115. Diplograptus Dana, Amer. Jour. Sci. Arts, 2d ser., 14, 1852, p. 128. Hall, Geol. Surv. Canada, dec. 2, 1865, p. 109; 20th Rep. New York State Cab. Nat. Hist, p. 217; rev. ed., 1868 (1870), p. 251. Zittel, Handb. Pal., 1, 1879, p. 300. Dairon, Trans. Geol. Soc. Glasgow, 7, 1883, p. 177. Tullberg, Sveriges Geol. Unders., ser. C, no. 55, 1883, pp. 13, 14. Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 561. Miller, N. A. Geol. Pal., 1889, p. 186.-James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, p. 157. Wiman, Jour. Geol., 2, 1894, p. 267. Ruedemann, 48th Rep. New York State Mus., 2, 1897, p. 244; 14th Rep. State Geol. New York for 1894, 1897, p. 244. Wiman, BulL Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 264. Koken, Die Leitfossilien, Leipzig, 1896, p. 329. Wiman, Nat. Sci., 9, 1896, p. 188. Roemer and Freeh, Leth.geog., 84243 Bull. 9215 29 450 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DIPLOGRAPTUS Continued. 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 624. Walther, Zeits. d. d. geol. Gesell., 49, 1897, p. 250. Ruedemann, Amer. Nat., 32, 1898, p. 3: Zittel- Eastman Textb. Pal., 1, 1900, p. 119. Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. xxxii. Ruedemann, Mem. New York State Mus., 7, 1904, p. 718, 719. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 33. Ruede- mann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 339-341; Zittel-East- man Textb. Pal., 2d ed., 1913, p. 130. Glyptograptus Zittel, Handb. Pal., 1, 1879, p. 300. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 264. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, pp. 625, 632. Diplograptus acutus (Elles and Wood). Diplograptus vulgatus var. acutus, Elles and Wood, Mon. British Grapt., pt. 6, 1907, p. 242, pi. 30, figs. 3a-c. Ordovician: South Scotland (Glenkiln); Arkansas (Stringtown). DIPLOGRAPTUS AMPLEXICAULE Walcott(part). See Diplograptus peosta. DIPLOGRAPTUS AMPLEXICAULE Whitfield. See Diplograptus amplexicaulis pertenuis. Diplograptus (Glyptograptus) amplexicaulis (Hall). Graptolithus amplexicaule Hall, Pal. New York, 1, 1847, pp. 79, 316, pi. 26, figs. lla, b. Hitchcock, Geol. Vermont, 1, 1861, p. 291, text fig.; New York State Cab. Nat. Hist., 20th Ann. Rep., 1868, pi. 3, figs. 6, 7, rev. ed., 1870, p. 223. Diplograpsus amplexicaule Emmons, Amer. Geology, 1, pt. 2, 1855, p. 236, pi. 7, figs, lla, b. Diplograptus amplexicaulis Lapworth, Proc. and Trans. Roy. Soc, Can., 1886, 4, p. 184. White Trans. New York Acad. Sci., 15, 1895, p. 93. Ruedemann, Bull. New York State Mus., 39, 1901, p. 497ff. Diplograptus foliaceus mut. amplexicaule Gurley, Jour. Geol., 4, 1896, p. 298. Diplograptus (Glyptograptus) amplexicaulis Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 632 (gen. ref.). Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 361-365, pi. 25, figs. 10-13, text figs. 302-307. Trenton: Trenton Falls, Middleville, and Washington County, New York. Diplograptus amplexicaulis pertenuis Ruedemann. Diplograptus amplexicaule Whitfield, U. S. Geol. Sur. West 100th Merid., Wheeler's Rep., 4, Pal., 1877, p. 19. Ruedemann, Bull. New York State Mus., 8, 1901, p. 533, footnote. Diplograptus amplexicaulis var. pertenuis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 365, 366, pi. 25, figs. 14-16, text figs. 308-310. Trenton (Snake Hill): Lansingburg and Troy, New York. Diplograptus (Glyptograptus) angustifolius (Hall). Graptolithus angustifolius Hall, Pal. New York, 3, 1859, p. 515, figs. 1, 2; New York State Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 59, figs. 1, 2. Diplograptus angustifolius Nicholson, Geol. Soc. Lond. Quar. Jour., 1868, p. 525, pi. 19, figs. 8, 9. Lapworth, Cat. West. Scott. Foss., 1876, pi. 2, fig. 35; Belfast Nat. Field Club., Rep. and Proc., App., 1, pt. 4, 1877, p. 132, pi. 6, fig. 11; Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 21. Walcott, Alb. Inst. Trans., 10, 1881 (adv. sheets, 1879, p. 34). Lapworth, Geol. Sur. Can. Rep., 2dser., 2, 1886, p. 22D; Sci., 9, 1887, p. 320.-Ami, Geol. Sur. Can. Rep. '2d ser., 3, pt. 2, 1889, p. 116K. Walcott, Bull. Geol. Soc. Amer. 1, 1890, p. 339. Barrois, Ann. Soc. Geol. du Nord,20,1892, p. 145. Gurley, Jour. Geol., 4, 1896, p. BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 451 Diplograptus (Glyptograptus) angustifolius Continued. 298. Ruedemann, Bull. New York State Mus. 42, 1901, p. 541ff. Weller, Geol. Sur. New Jersey, Pal., 3, 1903, p. 212, pi. 16, figs. 8, 9. Dale, Bull. U. S. Geol. Sur., 242, 1904, p. 33. Diplograptus (Glyptograptus) angustifolius Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 36G-369, pi. 25, figs. 19, 20, text figs. 311-314. Diplograptus (Graptolithus) angustifolius Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 206, figs. Chazyan (Nonnanskill): Glenmont, Stockport, Lansingburg, etc., New York; Kicking Horse Pass, Canada; Silver Peak Quadrangle, Nevada; Arkansas; Quebec; New Jersey; Great Britain. DIPLOGRAPTUS BARBATULUS Salter. See Diplograptus foliaceus. Diplograptus basilicus (Elles and Wood). Orthograptus basilicus Lapworth, Geol. Mag., 10, 1873, p. 134 (nom. nud.). Diplograptus vulgatus var. basilicus Elles and Wood, Mon. British Grapt., pt. 6, 1907, p. 243, pi. 30, figs. 2a-d. Ordovician: South Scotland (Lower Hartfell); Arkansas (Normanskill-String- town). DIPLOGRAPTUS BICORNIS Geinitz. See Climacograptus bicornis. DIPLOGRAPTUS BIMUCRONATUS Nicholson. See Lasiograptus bimucronatus. DIPLOGRAPTUS CILIATUS Walcott. See Glossograptus ciliatus. Diplograptus crassitestus Ruedemann. Diplograptus crassitestus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 354, 355, pi. 25, fig. 6, text figs. 299-300. Richmond (Sylvan): Arbuckle Mountains, Oklahoma. Cotypes. Cat. No. 54266, U.S.N.M. DIPLOGRAPTUS DENTATUS Lapworth. See Diplograptus (Glyptograptus) euglyphus. Diplograptus dentatus (Brongniart). Fucoides dentatus Brongniart, Hist. Veget. Foss., 1, 1828, p. 70, pi. 6, figs. 9-12. Graptolithus pristiniformis Hall, Geol. Sur. Can. Rep., 1857, p. 133; Canadian Nat. Geol., 3, 1858, p. 167. Diplograptus pristiniformis Hall, Geol. Sur. Can., dec. 2, 1865, p. HOff, pi. 13, figs. 15-17. Nicholson, Quar. Jour. Geol. Soc., 24, 1868, p. 140, pi. 5, figs. 14, 15. Diplograptus dentatus Hopkinson and Lapworth, Quart. Jour. Geol. Soc. London, 31. 1875, p. 656, pi. 34, figs. 5a-k. Emerson, Narrative Hall's 2d Arctic Exped. U. S. Navy Dept., 1879, p. 576. Ami, Geol. Sur. Can. Rep., 2d ser., 3, pt. 2, 1889, p. 117k. Gurley, Jour. Geol., 4, 1896, p. 298. Elles, Quar. Jour. Geol. Soc., 54, 1898, p. 51 7. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 570; Mem. New York State Mus., 7, pt. 1, 1904, pp. 719-721, pi. 17, figs. 10-13, text fig. 100. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 34. Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill, Rensselaer and Columbia Counties, New York (Deepkill, D. dentatus zone); Arkansas; England (Skiddaw); Wales (Arenig); Sweden. DIPLOGRAPTUS DISSIMILARIS Emmons. See Diplograptus foliaceus. DIPLOGRAPTUS ETHERIDGII Hopkinson. See Cryptograptus tricornis. 452 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Diplograptus (Glyptograptus) euglyphus (Lapworth). Diplograptus dentatus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 4, 1870, p. 424; Belfast, Nat. Field Club Rep. and Proc., 1, pt. 4, App., 1877, p. 132, pi. 6, fig. 13; Geol. Soc. Quar. Jour., 34, 1878. Diplograptus (Glyptograptus) euglyphus Lapworth, Ann. Mag. Nat.eHist., 5th ser., 5, 1880, p. 166, pi. 4, figs. 14a-e. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 369-370, pi. 25, figs. 22, 23, text figs. 315-316. Diplograptus euglyphus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 6, 1880, p. 21; Proc. and Trans. Roy. Soc. Can., 4, 1887, p. 177; Canadian Rec. Sci., 3, 1888, p. 141 (loc. occ.); Can. Geol. Surv. Rep., 1887-88, 2d,ser., 3, pt. 1, p. 95B. Middle Ordovician: Great Britain (Glenkiln); Dease River, British Columbia; Griffin Cove, etc., Quebec; Glenmont, Speigletown, etc., New York (Nor- manskill); Silver Peak Quadrangle, Nevada; Arkansas. Plesiotype.Czt. No. 54266, U.S.N.M. Diplograptus euglyphus pygmseus Ruedemann. Diplograptus euglyphus var. pygmseus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 371, pi. 25, figs. 317, 31.8. Trenton (Canajoharie): Near Lansingburg, New York. Diplograptus follaceus (Murchison). ?Fucoides dentatus Conrad, New York State Surv., 2d Ann. Rep., 1838, p. 114. Vanuxem, ibid., p. 283. Graptolithus foHaceus Murchison, Sil. Syst., 1839, p. 694, pi. 26, fig. 3. Portlock, Geol. Rep., 1843, p. 320, pi. 19, fig. 9. Diprion f oliaceus Harkness, Geol. Soc. London Quart. Jour., 7, 1850, pi. 1, fig. 13b. Diplograptus f oliaceus Geinitz, Die Grapt., 1852, pi. 1, figs. 29, 30. Lapworth, Cat. West. Scotland Foss., 1876, p. 6, pi. 2, fig. 29; Belfast Nat. Feld Club Rep. and Proc., 1, pt. 4, App., 1877, p. 133, pi. 6, fig. 18. Linnarsson, Sver. Geol. Und., Ser. C., 31, 1879, p. 18ff. Tullberg, Sver. Geol. Und., Ser. C, 41, 1880, p. 20; ibid., 50, 1882, p. 20. Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887, pp. 177ff. Ami, Can. Geol. Surv. Rep., 2d ser., 3, pt. 2, 1888, p. 117K. Geinitz, Mitth. k. Min. geol. praeh. Mus. Dres- den, 9, 1890, p. 37, pi. A. Gurley, Geol. Surv. Arkansas, Ann. Rep., 1892, 3, p. 404. Barrois, Ann. Soc. Geol. du Nord, 20, 1892, p. 145. Gurley, Jour. Geol., 4, 1896, p. 298. Hall, Roy. Soc. Proc., 9, 1896, p. 185; ibid., 10, 1897, p. 14; Geol. Mag., n. s., dec. 4, 6, 1899, p. 445. Ruedemann, Bull. New State Mus., 42, 1901, p. 497ff. Clark, Geol. Mag., 4th ser., 9, 1902, p. 498. T. S. Hall, Geol. Surv. Victoria Rec., 1, pt. 1, 1902, p. 34f; Geol. Surv. New South Wales Rec., 7, pt. 2, 1902, p. 4, pi. 12, fig. 7. Weller, Geol. Surv. New Jersey Pal., 3, 1902, p. 53. Ami, Geol. Surv. Canada, Summ. Rep., 1905, p. 12. Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 33. Ruede- mann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 341-346, pi. 24, figs. 1-8, pi. 25, figs. 1, 2, text figs. 279-282, pi. 25, figs. 7-9. Fucoides simplex Emmons, Tac. Syst., 1844, p. 27, pi. 5, fig. 1; Agric. New York, 1, 1847, pi. 17, fig. 1. Graptolithus pristis (part) Hall, Pal. New York, 1, 1847, p. 265, pi. 72, figs. 1-ac; Pal. New York, 3, 1859, p. 516, fig. 2; New York State Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 60, fig. 2; Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 36, fig. 30; New York State Cab. Nat. Hist., 20th Ann. Rep., 1868, pp. 204, 205, fig. 2. Graptolithus (Diplograptus) pristis White, Rep. Wheeler Surv., 4, 1875, p. 65, pl. 4, fig. 2. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 453 Diplograptus foliaceus Continued. Diplograptus pristia Marcou, Geol. Map United States, 1853, p. 24, pi. 1, fig. 10. Hopkinson, Micro. Club Jour., 1, 1869, pi. 8, fig. lla. Carruthers, Geol. Mag., 5, 1868, p. 130, pi. 5, figs. 13a-d. Nicholson, Mon. British Grapt., 1872, fig. 22, p. 54; p. 58, fig. 26; p. 69, fig. 39A; p. 116, fig. 58. Hopkinson and Lapworth, Geol. Soc. London Quart. Jour., 31, 1875, pp. 656-657, pi. 35, figs. 7a-g. Walcott, Alb. Inst. Trans., 10, 1883 (adv. sheets, 1879, p. 34), p. 4 (loc. occ.). Whitfield, Amer. Jour. Sci., 3d ser., 1883, 26, p. 380. Tullberg, Zeittschr. d. deutech. geol. Gesell., 35, 1883, p. 2,41. Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 339. Ruedemann (part), New York State Geol. Rep., 1897, p. 219, pi. 4. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 33, fig. 54. Graptolithus folium et G. pristis Salter, Geol. Soc. London Quart. Jour., 5, 1849, p. 15, pi. 1, figs. 5, 6. Diplograptus rugosus Emmons, Amer. Geol., 1, pt. 2, 1856, p. 105, pi. 1, fig. 26. Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 168. Diplograptus dissimilaris Emmons, Amer. Geol., 1, pt. 2, 1855, p. 105, pi. 1, fig. 5. Dicranograptus dissimilaris Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.). Diplograptus secalinus Hall, Pal. New York, 1, 1847, p. 267, pi. 72, figs. 2a-c. Diplograptus barbatulus Salter, Mem. Geol. Surv. Great Britain, 3, 1866, pi. 2a, " figs. le-d. Graptoiithus (Diplograptus) hypniformis White, Geogr. and Geol. Expl. West 100th Merid., Prel. Rep., 1874, p. 12; ibid., 4, War Dep., 1877, p. 63, pi. 4, fig. 4a, b. Diplograpsus obliquis Emmons, Amer. Geol., 1, pt. 2, 1855, p. 106, pi. 1, fig. 22. Diplograpsus laciniata Emmons, Amer. Geol., 1, pt. 2, 1855, p. 236, pi. 1, fig. 24. Middle Ordovician: Great Britain (Glenkiln and Hartfell); Scandinavia, Aus- tralia, Nevada, Oklahoma, Arkansas, Canada, New York, etc. (Normans- kill, etc.). Plesiotypc.Csit. No. 8556, U.S.N.M. (Holotype of G. hypniformis). DIPLOGRAPTUS FOLIACEUS Ruedemann (part). See Glossograptus (Orthograptus) quadrimucronatus . Diplograptus foliaceus acutus Lapworth. Graptolithus pristis Hall (?Hisinger), Pal. New York, 1, 1847, pi. 72, fig. 10, Ip. Diplograptus foliaceus var. acutus (Lapworth MS.) Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 349-351, pi. 25, figs. 1, 2, text figs. 288-293. Middle Ordovician: Stockport, etc., New York (Normanskill); Canada; Scotland (Glenkiln); Shropshire (Upper Llandeilo). Diplograptus foliaceus alabamensis Ruedemann. Diplograptus foliaceus var. alabamensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 352, pi. 25, fig. 3. Chazyan (Athens): Pratts Ferry, Bibb County, Alabama. DIPLOGRAPTUS FOLIACEUS mut. AMPLEXICAULE Gurley. See Diplograptus (Glypto- graptus) amplexicaulis. Diplograptus foliaceus incisus Lapworth. Graptolithus pristis Hall (not Hisinger), Pal. New York, 1, 1847, pi. 72, fig. 11. Diplograptus foliaceus var. incisus (Lapworth MS.) Ruedemann, Mem. New York State Mus., 11 , pt. 2, 1908, pp. 347-349, pi. 24, figs. 198, text figs. 283-287. Chazyan: One-half mile beiow Little Mechin Point, Quebec; Stockport and Glenmont, New York (Normanskill). 454 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Diplograptus follaceus trifldus (Gurley). Diplograptus trifidus Gurley, Geol. Surv. Ark. Rep., 3, 1890, 417, pi. 9, figs, 3, 4; Jour. Geol., 4, 1896, pp. 298, 307. Diplograptus foliaceus var. trifidus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 351, 352, fig. 295. Chazyan (Normanskill): Arkansas. Cofypea. Cat. No. 54260, U.S.N.M. DIPLOGRAPTUS FOLIACEUS VESPERTINUS Ruedemann. See Diplograptus vespertinus. Diplograptus hudsonicus Nicholson. Diplograpsus Hudsonicus Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 38, fig. 15. Cincinnatian (Pulaski): River Humber, Ontario. Diplograptus Inutills Hall. Diplograptus inutilis Hall, Geol. Surv. Canada, dec. 2, 1865, p. Ill, pi. 13, fig. 14. Gurley, Jour. Geol., 4, 1896, p. 298. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 570; Mem. New York State Mus., 7, pt. 1, 1904, p. 721, pi. 16, figs. 12, 13. Canadian: Point Levis, Quebec (Lev is, Diplograptus dentatus zone); Deepkill, Rensselaer County, New York (Deepkill, D. dentatus zone). DIPLOGRAPTUS LAXUS Ruedemann. See Cryptograptus antennarius. Diplograptus longicaudatus Ruedemann. . Diplograptus longicaudatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 723, pi. 16, fig. 11. Canadian (Deepkill, Diplograptus dentatus zone) : Deepkill, Rensselaer County, New York. Diplograptus (Amplexograptus) macer Ruedemann. Diplograptus (Amplexograptus) macer Ruedemann, Mem. New York State Mus., 162, 1912, p. 82, pi. 2, figs. 20, 21. Trenton (Oanajoharie) : Minaville, New York. DIPLOGRAPTUS MARCLDUS Walcott. See Cryptograptus tricornis. Diplograptus (Mesograptus) mohawkensis Ruedemann. Diplograptus (Mesograptus) mohawkensis Ruedemann, Bull. New York Mus., 162, 1912, p. 80, pi. 2, figs. 18, 19. Trenton (Canajoharie): Near Amsterdam and near Saratoga, New York. DIPLOGRAPTUS MUCRONATUS Geinitz. See Lasiograptus mucronatus. : State Diplograptus peosta Hall. Graptolithus pristis (part) Hall, Pal. New York, 1, 1847, p. 72, figs. If, Ig. Graptolithus (Diplograptus) peosta Hall, Geol. Surv.Wisconsin Rep., 1861, p. 17. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 47, pi. 5, fig. 12. Diplograptus peosta Hall, Geol. Wisconsin, 1, 1862, p. 430; 20th Rep. New Yo State Cab. Hist., 1868, p. 223. Gurley, Jour. Geol., 4, 1896, p. 298. Jam Amer. Geol., 5, 1890, p. 354. Ruedemann, Mem. New York State Mus.. 1 pt. 2, 1908, pp. 372-374, pi. 25, fig. 17, text figs. 319-322; Bull. New Yo: State Mus., 162, 1912, p. 83, fig. 23, pi. 2, fig. 17. Diplograptus pristis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1897, 81, fig. 2. BIBLIOGRAPHIC LIST OP GENERA AXD SPECIES. 455 Diplograptus peosta Continued. Diplograptus amplexicaulis Whitfield and Ilovey (part), Bull. Amer. Mus. Nat. Hist., 11, pt. 1, 1898, pp. 20-21. Ruedemann, Bull. New York State Mus., 42, 1901, p. 561. Richmond (Maquoketa): Graf, etc., Iowa; Wisconsin; Illinois; Minnesota; etc. DIPLOGRAPTUS PRISTINIFORMIS Ruedemann. See Lasiograptus (Thysanograptus) eucharis. DIPLOGRAPTUS PRISTINIFORMIS Hall (part). See Diplograptus dentatus. DIPLOGRAPTUS PRISTIS Ruedemann (part). See Glossograptus (Orthograptus) quad- rimucronatus. DIPLOGRAPTUS PRISTIS Nicholson. See Diplograptus foliaceus. DIPLOGRAPTUS PRISTIS Winchell and Schuchert. See Diplograptus peosta. DIPLORGAPTUS PRISTIS Hall (part). See Diplograptus foliaceus vespertinus. DIPLOGRAPTUS PUTILLUS Hall. See Climacograptus putillus. DIPLOGRAPTUS QUADRIMUCRONATUS Nicholson. See Glossograptus (Orthograptus) quadrimucronatus. DIPLOGRAPTUS RUEDEMANNI Gurley. See Lasiograptus (Thysanograptus) eucharis. DIPLOGRAPTUS RUGOSUS Emmons. See Diplograptus foliaceus. 'DIPLOGRAPTUS SECALINUS Eaton. See Diplograptus foliaceus. DIPLOGRAPTUS? SEXTANS McCoy. See Dicellograptus sextans. DIPLOGRAPTUS SPINULOSUS Walcott. See Glossograptus ciliatus. DIPLOGRAPTUS TERETIUSCULUS var. PUTILLUS Freeh. See Climacograptus putillus, DIPLOGRAPTUS TRICORNIS Carruthers. See Cryptograptus tricornis. DIPLOGRAPTUS TRIFIDUS Gurley. See Diplograptus foliaceus trifidus. Diplograptus vespertinus (Ruedemann). Diplo^raptus pristis (part) Hall, Pal. N-ew York, 1, 1847, pi. 72, figs. 1, la, Ib, Ik, 11. Diplograptus foliaceus mut. vespertinus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 352-354, pi. 25, figs. 4, 5, 18, text figs. 296-298. Diplograptus vespertinus Ruedemann, Bull. New York State Mus., 162, 1912, p. 83. Chazyan (Normanskill): Van Schaick Island, etc., New York. Trenton (Canajoharie) : Mohawk Valley, New York. DIPLOGRAPTUS VULGATUS var. ACUTUS Elles and Wood. See Diplograptus acutus. DIPLOGRAPTUS VULGATUS var. BASIUCUS Elles and Wood. See Diplograptus basilicus. DIPLOGRAPTUS WHITFIELDI Nicholson. See Glossograptus whitfieldi. DIPLOPHYLLUM Hall. See Diphyphyllum Lonsdale. DIPLOSTENOPORA Ulrich and Bassler. Genotype: Escharopora siluriana Weller. Diplostenopora Ulrich and Baasler, Maryland Geol. Surv., Low. Dev., 1913, p. 276. 456 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Diplostenopora sllurlana (Weller). Escharopora eiluriana Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 225, pi. 18, figs. 6-7; pi. 19, figs. 8, 9. Diplostenopora siluriana Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 277, pi. 45, figs. 3-6; pi. 48, figs. 1-3; pi. 52, figs. 3-4. Helderbergian: Two miles south Tristates, New York (Decker Ferry); Cash Valley, etc., near Cumberland, Maryland (Keyser). DIPLOTRYPA Nicholson (part). See Mesotrypa Ulrich. DIPLOTRYPA Nicholson. Genotype: Favosites petropolitanus Pander. Diplotrypa Nicholson, Pal. Tab. Corals, 1879, p. 292; Genus Monticulipora, 1881, pp. 101, 155. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 153. Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 13. Roemer, Leth. geog., 1, Leth. Pal., 1883, p. 472. Miller, N. A. Geol. Pal., 1889, p. 187. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 378, 457. Rominger, Amer. Geol., 6, 1890, pp. 116-119. Ulrich, Geol. Minnesota, 3, 1893, p. 285; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 275; also (not Ulrich) p. 104 (in part). Nickles and Bassler, Bull. U.S. Geol. Surv., 173, p. 36. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 47; Zittel-Eastman Textb. Pal., 1913, p. 338; Bull. U. S. Nat. Mus., 77, 1911, pp. 312, 313. Callopora (not HaU) Dybowski, Die Chsetetiden d. Ostb. Silur-Form., 1877, p. 106. Diplotrypa? dubia Ulrich. Diplotrypa? dubia Ulrich, Geol. Surv. Illinois, 8, 1890, p. 459, pi. 33, figs. 3-3b. Monticulipora dubia J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 182. Dianulites dubia Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). Richmond (Fernvale): Wilmington, Illinois. Sections of holotype.Czt. No. 43390, U.S.N.M. DIPLOTRYPA INFIDA Ulrich. See Mesotrypa infida. Diplotrypa limit aris Ulrich. Diplotrypa limitaris Ulrich, Geol. Minnesota, 3, 1893, p. 286, fig. 18. Sardeeon, Jour. Geol., 9, 1901, p. 8, pi. A, figs. 3, 4. Dianulites limitaris Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). Trenton (Prosser) : Goodhue County, Minnesota. Holotype.-zt. No. 43534, U.S.N.M. DIPLOTRYPA MILLERI Ulrich. See Mesotrypa nummiformis. Diplotrypa neglecta Ulrich. Diplotrypa neglecta Ulrich, Geol. Minnesota, 3, 1893, p. 287, fig. 19. Dtanulites neglecta Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). Trenton (Prosser) : Hader, Minnesota. Holotype.Czt. No. 43533, U.S.N.M. DIPLOTRYPA PATELLA Ulrich. See Mesotrypa patella. DIPLOTRYPA QUEBECBNSIS Ami. See Mesotrypa quebecensis. DIPLOTRYPA REGULARIS Foord. See Mesotrypa regularis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 457 Diplotrypa walkerl Basaler. Diplotrypa walked Basaler, BuU. U. S. Geol. Surv., 292, 1906, pp. 47-48, pi. 16, figd. 1-5; pi. 25, fig. 4. Clinton (Hochester) : Lockportand Kochester, New York; Grimsby, Ontario. Cotypes Oat. No. 35527, U.S.N.M. Diplotrypa westonl Ulrich. Diplotrypa westoni Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 30, pi. 8, figs. 4-4b; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 457 (p. 274). Wldteaves, Pal. Foss., 3, pt. 3, 1897, p. 163. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 323, fig. 201; Zittel-Eastman Textb. Pal., 1913, p. 338. Black Liver or Richmond: Big Island, Lake Winnipeg, Manitoba. Ordovician (Chasmops): Nittsjo Ratvik, Dalarne, Sweden, and south of Boda- hamn, island of (Eland, Baltic Sea. Part of holotype Cat. No. 43810, U.S.N.M. DIPRION FOLIACEUS Harkness. See Diplograptus foliaceus. DISCINA Hall. See Orbiculoidea D'Orbigny. DISCINA CIECE Billings. See Orbiculoidea lamellosa. DISCINA CLARA Spencer. See Schizotreta tenuilamellata. DISCINA CONCORDENSIS Sardeson. See Schizotreta pelopea. DISCINA DEFORMIS Lincklaen. See Archinacella deformata. DIscina?? fletcherl Ami. Discina fletcheri Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895, p. 412. Silurian: Antigonish County, Nova Scotia. DISCINA FORBESI Nicholson. See Schizotreta tenuilamellata. DISCINA LAMELLOSA Hitchcock. See Orbiculoidea lamellosa. Discina?? novascotica Ami. Discina novascotica Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895, p. 412. Silurian: Antigonish County, Nova Scotia. Discina?? orientalis Ami. Discina orientalis Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895, p. 413. Silurian: Antigonish County, Nova Scotia. DISCINA PARMULATA Lincklaen. See Orbiculoidea pannulata. DISCINA PELOPEA Billings. See Schizotreta pelopea. DISCINA SOLITARIA Ringueberg. See Schizotreta tenuilamellata. Discina sublamellosa Ulrich. Discina sublamellosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 97, pi. 4, fig. 11. Miller, N. A. Geol. Pal., 1889, p. 344. Schuchert, BuU. U. S. Geol. Surv., 87, 1897, p. 218. Eden (Economy): Covington, Kentucky. Observation. Probably not a brachiopod; possibly a pelecypod. DISCINA TENUILAMELLATA var. SUBPLANA Hall. See Orbiculoidea subplana. DISCINA TENUISTRIATA Ulrich. See Orbiculoidea tenuistriata. 458 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. DISCINA TRUNCATA Emmons. See Orbiculoidea lamellosa. DISCINA VANUXEMI Hall. See Orbiculoidea vanuxemi. DISCOCERAS Barrande. Genotype: Clymenia antiquissima Eichwald. .Discoceras Barrande, Cephalopodes; Ext. Syst. Sil. du Centre Boheme, 1877, p. 95. Angelin, Fragmenta Silurica, 1880, p. 9. Zittel, Handb. Pal., 2, 1884, p. 377. Remele, Zeits. d. d. geol. Gesell., 28, 1886, p. 468. Schroder, Pal. Abhandl. von Dames u. Kayser, Neue Folge, 1, Heft. 4, Jena, 1891, p. 20. Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 500. Koken, Die Leitfossilien, Leipzig, 1896, p. 51. Miller, N. A.Geol. Pal., 2d, App., 1897, p. 772. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 72. Discoceras canadense Whiteaves. Discoceras Canadense Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 227, pi. 22, figs. 3, 3a. Black River or Richmond: Little Black Island; Lake Winnipeg, Canada. DISCOCERAS EATONI Schroeder. See Schroederoceras eatoni. Discoceras graftonense (Meek and Worthen). Lituites Graftonensis Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1870, p. 51; Geol. Surv. Illinois, 6, 1875, p. 507, pi. 25, fig. 1. Newell, Proc. Boston Soc. Nat. Hist., 1888, 23, p. 485 (loc. occ.). Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 105. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 72. Lituites multicostatus Whitfield, Ann. Rep. for 1879, 1880, p. 67; Geol. Wisconsin, 4, 1882, p. 303, pi. 20, fig. 7. Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 486 (loc. occ.). Trocholites multicostatus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 36, pi. 6, figs. 1, la. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1229, figs. Niagaran: Grafton, Illinois; Waukesha, Wisconsin; Indiana; Elora and Hespeler, Ontario (Guelph). DISCOCERAS INTERNISTRIATUM Schroeder. See Trocholites internistriatus. Discoceras marshi (Hall). Lituites marshii Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 362- pl. 16(7), figs. 6, 7; rev. ed., 1870, p. 404, pi. 16, figs. 6, 7 Nettelroth, Ken, tucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 195, pi. 30, fig. 1. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 473, pi. 21, fig. 4. Discoceras marshii Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 72, fig. 1284. Niagaran: Kankakee, Illinois; Louisville, Kentucky; Wabash, Indiana. Plesiotype Cat. No. 51378, U.S.N.M. Discoceras ortoni (Meek). Lituites? Ortoni Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 186, pi. 15, fig. 4 (Gyroceras? Ortoni at end of description). Discoceras ortoni Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.). Niagaran (Guelph): Greenville, Darke County, Ohio. DISCOLITES Emmons. See Microceras Hall. DISCOLITES MINUTUS Emmons. See Microceras inornatum. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 459 DISCOPHTCUS Walcott. Genotype: D. typicale Walcott. Discophycus Walcott, Trans. Albany Inst., 10, 1883, p. 19 (adv. sheets, 1879). Miller, N. A. Geol. Pal., 1889, p. 117. Discophycus typicale Walcott. Discophycus typicalis Walcott, Trans, Albany Inst., 10, 1883, p. 19, pi. 2, figs. 18, 18a (adv. sheets, 1879). James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 128, pi. 5, fig. 4. Utica: Trenton, Oneida County, New York. DISCOPHYLLUM Hall. Genotype: D. peltatum Hall. Discophyllum Hall, Pal. New York, 1, 1847, p. 277 Dlscophyllum peltatum Hall. Discophyllum peltatum Hall, Pal. New York, 1, 1847, p. 277, pi. 75, fig. 3. Chazyan (Normanskill) or Trenton (Snake Hill): Near Troy, New York. DISCOSORUS Hall. Genotype: D. conoideus Hall Discosorus Hall, Pal. New York, 2, 1852, p. 99, pi. 28. Woodward, Man. Mol- lusca, pt. 3, 1856, p. 449. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 81. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 272. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 194. Miller, N. A. Geol. Pal., 1889, p. 436. Discosorus conoideus Hall. Columns of circular discs, etc., Bigsby, Trans. Geol. Soc. London, ser. 2, 1, 1824, p. 204, pi. 30, figs. 4, 6. Discosorus conoideus Hall, Geol. Lake Sup. Land DLst., Foster and Whitney's Rep., 1851, p. 222, pi. 34, figs. 2, 3; Pal. New York, 2, 1852, p. 99, pi. 28, figs. 13a-c. Wliitfield, Geol. Wisconsin, 4, 1882, p. 209, pi. 20, fig. 6. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 196, fig. 25. Orthoceras? (Discosorus) conoideus Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1864, p. 750, pi. 232, 437, 474. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 286; Geol. Surv. Ohio, Pal., 7, 1893, p. 546, pi. 36, fig. 8. Gomphoceras conoideum Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, pt. 2, 1899, p. 172. (Regarded as internal cast of siphon.) Silurian: Ontario an4 Lockport, New York (Lower Clinton); Todds Fork, Clin- ton County, Ohio (Brassfield); Ashford, etc., Wisconsin; Drummond Island, Lake Huron (Niagaran). Discosorus gracilis Foord. Discosorus Barrande, Syst. Sil. Boheme, 2, suppl. 1877, pi. 474, figs. 9, 10. Discosorus gracilis Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 198, fig. 26. Niagaran: Drummond Island, Lake Huron. Discosorus remotus Foord. Columns of circular discs, etc., Bigsby, Trans. Geol. Soc., 2d ser., 1, 1824, p. 204, pi. 30, fig. 7. Discosorus remotus Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 197. Niagaran: Drummond Island, Lake Huron. DISCOTRYPA Ulrich. Genotype: Chsetetes elegans Ulrich. Discotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155. Miller, N. A. Geol. Pal., 1889, p. 300. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 378. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 30. 460 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Disco trypa elegans (Ulrich). Chaetetes elegans Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 130, pi. 12, figs. 12, 12a. Discotrypa elegans Ulrich, ibid., 6, p. 163, pi. 7, fig. 1-lb. Monticulipora elegans James and James, ibid., 10, 1888, p. 165. J. F. James, ibid., 16, 1894, p. 180. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. HolotypeC&t. No. 43653, U.S.N.M. DISTACODUS Hinde. Genotype: Machairodus incurvus Pander. Machairodus Pander, Mon. Foss. Fische Sil. Syst., 1856, p. 23. Distacodus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 357. (Proposed for Machairodus Pander, preoccupied by Kaup.) Miller, N. A. Geol. Pal., 1889, p. 518. Distacodus Incurvus (Pander). Machairodus incurvus Pander, Mon. Foss. Fische Sil. Syst., 1856, p. 23, tab. 1, fig. 22. Distacodus incurvus Hinde, Quart, Jour. Geol. Soc. London, 35, 1879, p. 357, pi. 15, fig. 9. Middle Ordovician: Esthonia, Russia. Maysville (Pulaski): Garrison Common, near Toronto, Ontario. DITRIO ASTER Billings. Genotype: Cyclaster bigsbyi Billings. Cyclaster Billings (preoccupied), Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 292; Geol. Surv. Canada, Canadian Org. Rem., dec. 3, 1858, p. 82. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 323. Zittel, Grund- zuge Pal., 1, 1910, p. 241. 474 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. EDRIOASTEE Continued. Edrioaster Billings, Geol. Surv. Canada, dec. 3, 1858, p. 82. Zittel, Handb. Pal., 1, 1879, p. 414. Sturtz, Neues Jalirb. Min., Geol. Pal., 2, 188G, p. 144. Miller, N. A. Geol. Pal., 1889, p. 242. Jaekel, Stammes. d. Pelmat, 1, Thecoidea u. Cyst., Berlin, 1899, p. 44. Batlier, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 209, fig. 6. Zittel, Grundzuge Pal., 1, 1910, p. 181. Edriocystis Haeckel, Amph. und Cyst., Leipzig, 1896, p. 117. Edrioaster bigsbyi (Billings). Cyclaster Bigsbyi Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 293. Agelacrinites (Edrioaster) Bigsbyi Chapman, Expos. Min. Geol., Canada, 1864, p. 110. Sladen, Quart. Jour. Geol. Soc., 35, 1879, p. 750. Agelacrinus Bigsbyi Schmidt, Mem. Acad. St. Petersburg, 22, No. 11, 1874, 34. Edriocystis Bigsbyi Haeckel, Amph. u. Cyst., 1896, p. 118, pi. 3, figs. 35, 36. Edrioaster Bigsbyi Billings, Geol. Surv. Canada (Can. Org. Hem.), dec. 3, 1858, p. 85, pi. 8, figs. 1, la, 2, 2a. Jaekel, Stammes. d. Pelmat., 1, Thecoidea u. Cyst., Berlin, 1899, p. 46, pi. 2, fig. 4. Batliei, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 209, fig. 6. Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 44 (loc. occ.). Trenton: Ottawa and Kirkfield, Ontario; High Bridge, Kentucky (Curdsville); Fillmore County, Minnesota (Prosser.). Edrioaster saratogensis Ruedemann. Edrioaster saratogensis Ruedemann, Bull. New York State Mus., 162, 1912, p. 86, pi. 3, figs. 2-4. Trenton (Snake Hill): Snake Hill, Saratoga County, New York. EDRIOCYSTIS Haeckel. See Edrioaster Billings. EDRIOSPONGIA Ulrich and Everett. Genotype: E. basalis Ulrich and Everett. Edriospongia Ulrich and Everett in Miller, N. A. Geol. Pal.> 1889, p. 159. Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 271. Edriospongia basalis Ulrich and Everett. Edriospongia basalis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 272, pi. 6, figs. la-c. Black River (Platteville): Near Dixon, Illinois. Sections of hototype.C&t. No. 46556, U.S.N.M. EICHWALDIA of authors. See Dictyonella Hall. EICHWALDIA Billings. Genotype: E. subtrigonalis Billings. Eichwaldia Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 190; Canadian Nat. Geol., 3, 1858, p. 442. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 81; Zittel-Eastman Textb. Pal., 1, 1900, p. 312; ibid., 2d ed. 1913, p. 396. Eichwaldia subtrigonalis Billings. Eichwaldia subtrigonalis Billings, Geol. Surv. Canada; Rep. Progr. for 1857, 1858, p. 192. fig. 24; Canadian Nat. Geol., 3, 1858, p. 443, fig. 24; Geol. Canada, 1863, p. 142. fig. 76. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 310, figs. 241, 242; pi. 83, figs. 1-4. Black River (Leray): Pauquette Rapids, Ottawa River, Canada. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 475 ELKANIA Ford. Genotype: Obolclla desiderata Billings. Billingeia Ford (not Dekoninck, 1876), Amer. Jour. Sci., 3d ser., 31, 1885, p. 4C6. Elkania Ford, Amer. Jour. Sci., 3d ser., 32, 18SG, p. 325. Miller, N. A. Geol. Pal., 1889, p. 346. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 75, 165; llth Ann. Rep. New York State Geologist, 1894, p. 241. Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 321. Elkania ambigua (Walcott). Obolella? ambigua Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 67, pi. 1, fig. 2. Billingsia? ambigua Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 467. Elkania ambigua Ford, Amer. Jour. Sci., 32, 1886, p. 325. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 78. Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 562, pi. 51, figs. 2, 2a-c. Lower Pogonip: Nortlieast of Adams Hill and southeast of Jackson Mine, Eureka District, Eureka County, Nevada. Holotype and plesiotype.C&t. No. 24554, U.S.N.M. Elkania desiderata (Billings). Obolella desiderata Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1862, p. 69, fig. 62 on p. 68. Davidson, Geol. Mag., 5, p. 309, figs. 1, 2. Walcott, Bull. U. S. Geol. Surv., 30, p. 111. Billingsia desiderata Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 466, figs. 1, 2. Elkania desiderata Ford, Amer. Jour. Sci., 32, 1886, p. 325. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 77, pi. 3, figs. 15-19; llth Ann. Rep. State Geol. New York, 1892, pi. 3, figs. 13-14. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 221. Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 562, pi. 51, figs. 1, la-d. Canadian (Levis, Didymograptus zone): Point Levis, Quebec. Elkania Ida (Billings). Obolella ida Billings, Pal. Fossils, Geol. Surv. Canada, 1, 1865, p. 71, fig. 63 (adv. sheets, 1862.) Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111. Dawson, Canadian Rec. Sci., 3, 1888, p. 55; Peter Redpath Mus., McGill Univ., 1888, p. 55. Billingsia? ida Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 467. Elkania ida Ford, Amer. Jour. Sci., 32, 1886, p. 325 (gen. ref.). Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 563, pi. 30, figs. 20, 20a; pi. 51, figs. 4, 4a~c. Ozarkian? (Levis-erratics) : Point Levis, Quebec. ELKANIA PRETIOSA Ford. See Acrothete pretiosa. ELLIPTOCEPHALA UNDULOSTRIATA Miller. See Proetus undulostriatus. ELPE Barrande. Genotype: E. inchoata Barrande. Elpe Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 510. Zittel, Handb. Pal., 2, 1885, p. 554. Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 646. Bassler, ibid, 2d ed., 1913, p. 741. Leioditia (Ulrich MS.) Jones, Geol. Surv. Canada, Cont. Micro-Pal., 3, 1891, p. 94. Elpe cincinnatiensis (Meek). Cythere Cincinnatiensis Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 331; Geol. Surv. Ohio, Pal., 1, 1873, p. 158, pi. 14, figs, la-d. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 120. Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 395, footnote. Cytheropsis cincinnatiensis Miller, N. A. Geol. Pal., 1889, p. 541, fig. 993. Maysville (Corryville): Cincinnati, Ohio, and vicinity. 476 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Elpe irregularis (Miller). Cythere irregularis Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi. 3, figs. 7, 7a. Cytheropsis irregularis Miller, N. A. Geol. Pal., 1889, p. 541 (gen. ref.). Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Elpe radiata (Ulrich). Leperditia radiata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 9, pi. 7, figs. 2-2b. Eden (Fulton): First Ward, Cincinnati, Ohio. Cotypes.Gzt. No. 41711, U.S.N.M. Elpe ulrichi Foerste. Elpe Ulrichi Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 532, pi. 37, figs. 14a-c. Upper Medinan (Brassfield): Huffman's Quarry, near Dayton, Ohio. EMMELEZOE Jones and Woodward. Genotype: Ceratiocaris elliptica Jones. Emmelezoe Jones and Woodward, Mon. British Pal. Phyllopoda, Pal. Soc., 1888, pp. 3, 68. Clarke, Zittel-Eastman Textb. Pal., 1, 1900, p. 657; 2d ed., 1913, p. 752. Emmelezoe decora Clarke. Emmelezoe decora Clarke, 54th Ann. Rep. New York State Mus., App. 1, 1902, p. 95, pi. 2, figs. 4-11; pi. 3, figs. 1-4. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 379, fig. 1683. Cayugan (Pittsford): Erie Canal, Monroe County, New York. EMMONSIA Edwards and Haime. See Favosites Lamarck. EMPEROCRINUS Miller and Gurley. Genotype: E. indianensis Miller and Gurley. Emperocrinus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895, p. 42. Miller, N. A. Geol. Pal., 2d App., 1897, p. 744. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 202. Emperocrinus indianensis Miller and Gurley. Emperocrinus indianensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895, p. 43, pi. 4, figs. 16, 17. Miller, N. A. Geol. Pal., 2d App., p. 744, figs. 1347, 1348. Niagaran (Laurel): St. Paul, Indiana. Enallopora D'Orbigny. Genotype: Gorgonia perantiqua Hall. Enallopora D'Orbigny, Prod, de Pal., 1, 1850, p. 22. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 206. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 169. Miller, N. A. Geol. Pal., 1889, p. 300. Observations. For objections to the use of this name, see Geol. Surv. Illinois, 8, p. 683. ENALLOPORA CINCTOSA Miller. See Mitoclema cinctosum. ENALLOPORA PERANTIQUA D'Orbigny. See Protocrisina perantiqua. ENCRIN ASTER Haeckel (part). See Protaster Forbes. ENCRINURUS Emmrich. Genotype: Trilobus punctatus Brunn. Cryptonymus Eichwald, (not Eichwald, 1825), Sil. Schichten Syst., Esthland, 1840. Salter, Mon. British Tril., Pal. Soc., 1866, pp. 147, 168. Angelin, Pal. Scandinavica, 3d ed., Holmise, 1878, p. 2. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 477 ENCRINURUS Continued. Encrinurus Emmrich, Zur. Natg. der TriL, 1844, p. 16; Neues Jahrb. f. Min., etc., 1845, p. 42. Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (ext.), 1847, p. 90, pi. 5, fig. 55. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 778. Salter, Mem. Geol. Surv. United Kingdom, dec. 3, 1853, pi. 4. McCoy, British Pal. Rocks Fossils, 1854, p. 158. Pictet, Trait6 de Pal., 2d ed., 2, 1854, p. 523. Nieszkowski, Archiv. f. Naturk. Liv-, Ehst- u. Kurl., 1, 1857; p. 602. Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon Gesell. Konigsberg, 1874, p. 57. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 30, 1881, p. 222. Zittel, Handb. Pal., 2, 1885, p. 621. Novak, Sitz. d. k. bohm. Gesell. d. Wiss. Math. Naturw. Cl. for 1886, p. 429. Miller, N. A. Geol. Pal., 1889, p. 547. Koken, Die Leitfossilien, Leipzig, p. 36, 1896, fig. 24, figs. 5, 6. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 105, pi. 3, fig. 25. Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 149. Grabau, Bull. New York State Mus., 45, 1901, p. 225; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 225. Lindstrom, Kongl. Sven. Vet. Akad. Handl., 34, No. 8, 1901, p. 26, 56._Vogdes, San Diego Soc. Nat. Hist., 1907, p. 61. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 314. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 61. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 723. Cromus Barrande, Syst. Sil. du Centre Boheme, 1, 1852, p. 821, pi. 43. Zittel, Handb. Pal., 2, 1885, p, 621. Koken, Die Leitfossilien, Leipzig, 1896, p. 36. Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 156. Lindstrom, Kongl. Sven. Vet. Akad. Handl., 34, No. 8, 1901, p. 11. Pictet, Traite" de Pal., 2d ed., 2, 1854, p. 523. Barrande, Syst. Sil. du Centre Boheme, Suppl., 1, 1872, p. 20. Encrinurus amerlcanus Vogdes. Encrinurus americanus Vogdes, Desc. New Crust. Clinton of Georgia, 1886, p. 1. Foerste, Bull. Sci. Lab. Denison Univ., 2, 18S7, p. 102. Clinton: Taylors Ridge, west of Catoosa Station, Georgia. Encrinurus cristatus Clarke. Encrinurus cristatus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 741, fig. 58. Richmond (Maquoketa) : Spring Valley, Minnesota. Eolotype.C&t. No. 41953, U.S.N.M. Encrinurus deltoideus Shumard. Encrinurus deltoideus Shumard, 1st and 2d Ann. Rep. Geol. Surv. Missouri, pt. 2, 1855, p. 198, pi. B, fig. 10. Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 102. Keyes, Missouri Geol. Surv., 4, 1894, p. 229. Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 60, pi. 2, fig. 10. Cryptonymus deltoideus Vogdes, Mon. Genera Zethus, Cybele, Encrinurus and Cryptonymus, 1878, p. 21. Upper Medinan (Girardeau): Near Thebes, Illinois. Encrinurus egani Miller. Encrinurus egani Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 254, pi. 15, figs. 1, Ib; N. A. Geol. Pal., 1889, p. 547, figs. 1004-5. Weller, Bull. Chicago, Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 257, pi. 24, figs. 8-11. Niagaran (Racine): Joliet and near Lemont, Illinois. Encrinurus elegantulus Billings. Encrinurus elegantulus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 62. Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 102. Anticostian (Jupiter River): The Jumpers, Anticosti. 478 BULLETIN 92 ; UNITED STATES NATIONAL MUSEUM. ENCRINURUS BXCEDRINUS Safford. See Encrinurus raricostatus. Encrinurus indlanensis Kindle and Breger. Encrinurus indianensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1904, p. 482, pi. 24, figs. 14, 15. Niagaran (Noblesville): Connors Mill, Huntington, Wabash, etc., Indiana. Encrinurus laevis (Angelin). Cryptonymus laevis Angelin, Pal. Scand., pt. 1, p. 4, pi. 4, fig. 10. Encrinurus (Cryptonymus) laevis Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2, App., 1852, p. 221, pi. 5, figs. 14, 14a. Encrinurus laevis Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 592. Cromus arcticus Houghton, Jour. Geol. Soc. Dublin, 1, 1857, p. 241, pi. 6, figs. 1-5. Niagaran: Griffiths Island, etc., Arctic America. ENCRINURUS MIRUS Billings. See Cybeloides minis. Encrinurus multlsegmentatus (?Portlock) Billings. Amphion multisegmentatus Portlock, Geol. Londonderry, 1843, p. 291, pi. 3, fig. 6. Encrinurus multisegmentatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 61 (loc. ref.). Salter, Mem. Geol. Surv. United Kingdom, decade 7, pi. 4. Cryptonymus multisegmentatus Vogdes, Mon. Genera Zethus, etc., 1878, p. 29. Richmond (English Head and Ellis Bay): Junction Cliff, Anticosti. Encrinurus nereus Hall. Encrinurus sp. Hall, adv. sheets, 18th Rep. New York State Cab. Nat. Hist., 1865, p. 30; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 334. Encrinurus nereus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 375, pi. 21, fig. 15; rev. ed., 1870, p. 425, pi. 21, fig. 15. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 102. Cryptonymus nereus Vogdes, Mon. Gen. Zethus, Cybele, etc., 1878, p. 24, pi. 3, fig. 17. Niagaran (Racine): Racine, Wisconsin. Encrinurus ornatus Hall and Whitfield. Cybele punctata Hall (not Brunnich), Pal. New York, 2, 1852, p. 297, pi. 66A, figs. la-1. Encrinurus punctatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 61 (loc. ref.). Foerste, Bull. Sci. Lab. Denison Univ., 2, 1897, p. 103; Proc. Boston Soc. Nat. Hist., 24, 1890, p. 269. Van Ingen, School ef Mines Quart., 1901, p. 66, pi. fig. 27. Encrinurus cfr. punctatus Norton, Proc. Iowa Acad. Sci., 3, 1896, p. 79. Encrinurus ornatus Hall and Whitfield, Pal. Ohio, 2, 1875, p. 154, pi. 6, fig. 16. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 102. Grabau, Bull. New York State Mus., 45, 1901, p. 225, fig. 157; Bull. Buffalo Soc. Nat. Hist., 7, p. 225, fig. 157. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 314, fig. 1627. Cryptonymus ornatus Vogdes, Mon. Gen. Zethus, Cybele, etc., 1878, p. 23. Niagaran (Clinton-Guelph): Eaton and Yellow Springs, Ohio; New York; Canada; Arkansas; Tennessee; Alabama. Encrinurus pernodosus Slocom. Encrinurus pernodosus Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913, p. 61, pi. 16, figs. 5-7. Richmond (Maquoketa): Bloomfield, Clermont, and Elgin, Iowa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 479 ENCRINURUS PUNCTATUS Foerste. See Encrinurus thresher! and E. ornatua. Encrinurus raricostatus Walcott. Encrinurus excedrinus Safford, Geol. Tennessee, 1869, p. 290 (nom. mid.). Encrinurus raricostatus Walcott, 31st Rep. New York State Mus. Nat. Hist., 1880 (adv. sheets, 1877), p. 69. Safford and Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1889, p. 167, text fig. Clarke, Geol. Minnesota, 3, pt. 2, 1890, p. 740. Whi teaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 128. Cryptonymus raricostatus Vogdes, Mon. Genera Zethus, etc., 1878, p. 27. Black River: Mineral Point, Beloit, and janesville, Wisconsin (Platteville); Manitoba. Encrinurus rarus (Walcott). Ceraurus rarus Walcott, 31st Rep. New York State Mus. Nat. Hist., 1880 (adv. sheets, 1877), p. 68. Ceraurus (Cyrtometopus) rarus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738. Encrinurus rarus Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 541, pi. 2, fig. 3. Black River (Platteville) : Beloit, Wisconsin. Observation. See E. vannulus Clarke. Encrinurus thresher! Foerste. Encrinurus thresheri Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 101, pi. 8, fig. 26. Encrinurus punctatus Foerste, Geol. Surv. Ohio, 7, 1893, p. 531, pi. 27, fig. 26. Upper Medinan (Brassfield): Dayton, Ohio; Hanover, Indiana. Encrinurus trentonensis Walcott. Encrinurus trentonensis Walcott, 31st Rep. New York State Mus. Nat. Hist., 1880 (adv. sheets, 1877), p. 68. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 202, pi. 15, figs. 26, 27. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 314. Cryptonymus trentonensis Vogdes, Mon. Genera Zethus, etc., 1878, p. 28. Black River: Clifton, Wisconsin; Dunleith, Illinois. Trenton: Jacksonburg, New Jersey. Encrinurus tuberculifrons Weller. Encrinurus tuberculifrons Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 259, pi. 24, figs. 12-13. Niagaran (Racine): Near Joliet, Illinois. Encrinurus tuberculosus Collie. Encrinurus tuberculosis Collie, Bull. Geol. Soc. Amer., 14, 1903, p. 418, pi. 59, fig. 3. Trenton: Belief onte, Pennsylvania. Encrinurus vannulus Clarke. Encrinurus vannulus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 739, figs. 56, 57. Black River (Platteville): Janesville and Beloit, Wisconsin. Cotypc.Cat. No. 41954, U.S.N.M. Observation. Probably the same as E. rarus Walcott. Encrinurus Ylgilans (Hall). Ceraurus vigilans Hall, Pal. New York, 1, 1847, p. 245, pi. 65, figs. 2a-h. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 217, pi. 15, figs. 2a-c. Cryptonymus vigilans Vogdes, Mon. Genera Zethus, etc., 1878, p. 29, pi. 2, figs. 2a-2h. 480 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Encrinurus vigilans Continued. Encrinuriis vigilans Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 952 (gen. ref.)- Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 216, figs. Cybele vigilans Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 67 (gen. ref.). Trenton: Middleville, etc., New York. Encrinus curvatus Eaton. Encrinus curvatus Eaton, Geol. Textb., 2d ed., 1832, p. 128, pi. 1, fig. 4. Ordovician: Glens Falls, New York. Observation. Species based on a crinoid column. ENCRINUS GIGANTEUS Eaton. See Arthrophycus alleghaniensis. ENCRINUS TRANSVERSUS Eaton. See Phytopsis tubulosa. ENDOCERAS Hall. Accepted genotype : E. protciforme Hall. Endoceras Hall, Amer. Jour. Sci. Arts, 47, 1844, p. 109; Pal. New York, 1, 1847, p. 58, p. 207 footnote. Roemer, Neues Jahrb. f. Min., etc., 1848, p. 178. Wood- ward, Man. Mollusca, pt. 1, 1851, p. 89, fig. 50 on p. 90. Saemann, Palaeonto- graphica, 3, 1852, pp. 147, 155, 157, 162. Pictet, Traite* de Pal., 2d-ed., 2, 1854, p. 641. Emmons, Amer. Geol., 1, pt. 2, 1855, pp. 148, 151. Barrande, Bull. Soc. Geol. France, 2d, 12, 1855, p. 172; Neues Jahrb. f. Min., etc., 3855, p. 274, pi. 3, figs. 16, 71, p. 385. Salter, Quart. Jour. Geol. Soc. London, 15, 1859, p. 376, fig. b. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 68. Hitchcock, Geol. Vermont, 1, for 1861, 1862, p. 299. Chapman, Cana- dian, Jour., n. s., 8, 1863, p. 21; Expos. Min. Geol. Canada, 1864, p. 129. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 773. Miller, Cincin- nati Quart. Jour. Sci., 2, 1875, p. 130. Barrande, Cephalopodes, Ext. Syst. Sil. du Centre Boheme, p. 103. Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, pp. 20, 23, fig. 1 ; Geol. Wisconsin, 4, 1882, p. 228. Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 85. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 266. Zittel, Handb. Pal., 2, 1884, p. 362. Holm, Palseont. Abhandl., Dames and Kayser, Bd. 3, Heft 2, 1885, pp. 4, 11. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 129. Miller, N. A. Geol. Pal., 1889, p. 436. Hyatt, Amer. Geol., 16, 1895, July, p. 1. Koken, Die Leitfossilien, Leipzig, 1896,. p. 48, fig. 30. Holm, Geol. Foren Stockholm Forhandl., 18, 1896, p. 395; Sver- igesGeol. Unders., ser. C, No. 163, 1896.. p. 3. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 514; 2d ed., 1913, p. 595. Ruedemann, Amer. Geol., 31, 1903, p. 214; Bull. New York State Mus., 90, 1906, pp. 404, 418. Cumings, 32d Ann Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1026. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 41. Diploceras Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1847, p. 267. Whitfield, Geol. Wisconsin, 4, 1882, p. 228 (Genotype: D. vanuxemi Conrad). C\ clendoceras Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 43. Colpoceras Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 181; doc. ed., p. 174. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 783. Miller, N. A. Geol. Pal., 1889, p. 432 (Genotype: C. virgatum Hall). Observation. The generic relations of the species here referred to Endoceras and also to Cameroceras are in many cases still to be investigated. Endoceras angusticameratum Hall. Endoceras angusticameratum Hall, Pal. New York, 1847, p. 218, pi. 51, fig. 3. Trenton: Middleville, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 481 Endoceras annulatum Hall. Endoceras annulatum Hall, Pal. New York, 1, 1847, p. 207, pi. 44, figs, la, b; Amer. Geol., 1, pt. 2, 1855, p. 152. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 243. Endoceras annulatum var. Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 77, pi. 5, figs. 1, la; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 202. Cyclendoceras annulatum Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 43, fig. 1241. Trenton: Watertown, New York; Lake Winuepeg, Canada. ENDOCERAS APPROXIMATUM Hall. See Cameroceras approximatum. Endoceras arctiventrum Hall. Endoceras arctiventrum Hall, Pal. New York, 1, 1847, p. 217, pi. 51, figs. 2a, b. Trenton: MiddlevUle, New York. Endoceras arena turn (J. F. James). Colpoceras arcuatum James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 242, pi. 4, figs, la, b. Maysville: Cincinnati, Ohio. Observation. Recognizable? Refers merely to siphuncle of some Endoceras. Endoceras atlanticum (Barrande). Orthoceras atlanticum Barrande, Syst. Sil. du Boheme, ser. 4, 2, 1870, pi. 430, figs. 12, 13. Ordovician: Newfoundland. ENDOCERAS AULEMA Miller. See Nanno aulema. Endoceras bristolense Miller. Endoceras bristolense Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 85, pi. 4, figs. 2, 2a. Richmond (Maquoketa): Bristol, Illinois. Endoceras(?) champlainense Ruedemann. Endoceras(?) champlainense Ruedemann, Bull. New York State Mus., 90, 1906, p. 418, pi. 1, figs. 1-4, text fig. 5. Canadian (Beekmantown): Near Beekmantown, New York. Observation. Compare Endoceras consuetum Sardeson. Endoceras clarkel (Wetherby). Colpoceras clarkei Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 77, pi. 2, figs. 5, 5a. Colpoceras clarkii Miller, N. A. Geol. Pal., 1889, p. 432, fig. 727. Trenton (Curdsville) : Mercer County, Kentucky. Endoceras consuetum Sardeson. Endoceras consuetum Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 103, pi. 6, fig. 11. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 42. Canadian (Shakopee): Near Monroe and near Pickett Station, Wisconsin. Observation Compare Endoceras champlainense Ruedemann. ENDOCERAS CRASSISIPHONATUM Whiteaves. See Narthecoceras crassisiphonatum. ENDOCERAS DISTANS Hall. See Actinoceras distans. ENDOCERAS DUPLICATUM Hall. See Cameroceras duplicatum. 84243 Bull. 9215 31 482 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Endoceras egani Miller. Endoceras egani Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 84, pi. 4, figs. 1, la, Ib. Richmond (Maquoketa): Bristol, Illinois. ENDOCERAS ELONGATUM Keyes. See Endoceras proteiforme elongatum. Endoceras gemelliparum Hall. Endoceras gemelliparum Hall, Pal. New York, 1, 1847, p. 60, pi. 19, figs, la, b Barrande, Neues Jahrb. f. Min., etc., 1855, p. 267; Bull. Soc. Geol. France, (2), 12, 1855, p. 166. Emmons, Amer. Geology, 1, pt. 2, 185.5, p. 152. Black River: Hendersons Bay, Jefferson County, New York. ENDOCERAS HENNEPINI Miller. See Cameroceras hennepini. Endoceras(?) hudsoni Ruedemann. Endoceras(?) hudsoni Ruedemann, Bull. New York State Mus., 90, 1906, p. 421, pi. 7, fig. 1, fig. 6. Chazyan (Valcour) : Valcour Island, New York. * Endoceras hudsonicum Parks. Endoceras hudsonicum Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 37. Niagaran (Guelph); Severn River, Ontario. ENDOCERAS IN^QUABILE Miller. See Cameroceras insequabile, Endoceras insulare (Barrande). Orthoceras insulare Barrande, Syst. Sil. du Boheme, 4th ser., 2, 1870, pi. 430, figs. 1-11; pi. 31, figs. 1-10. Ordovician: Newfoundland. ENDOCERAS LATIVENTRUM Hall. See Cameioceras lativentrum. ENDOCERAS LONGISSIMUM Hall. See Vaginoceras longissimum. Endoceras magister Ruedemann. Endoceras magister Ruedemann, Bull. New York State Mus., 90, 1906, p. 423, pi. 8, fig. 1, fig. 7. Chazyan (Valcour) : Valcour, New York. Endoceras magniventrum Hall. Endoceras magniventrum Hall, Pal. New York, 1, 1847, p. 218, pi. 53, figs. I'< pi. 54, fig. 2b. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 267; Bi Soc. Geol. France, 2d ser., 1855, p. 166. James, J. F., Jour. Cincinnati S< Nat. Hist., 8, 1886, p. 243. Foord, Cat. Foss. Ceph. British Mus., 1, p/154. Trenton: Middleville, New York. ENDOCERAS MARCOUI Barrande. See Cameroceras marcoui. Endoceras montrealense (Billings). Orthoceras montrealensis Billings, Can. Nat. Geol., 4, 1859, pp. 361-363, llc-e; Geol. Canada, Geol. Surv. Canada, 1863, p. 121, figs. 37a-c. Lesl( Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 552, figs. Whitfield, Bi Amer. Mus. Nat. Hist., 3, 1890, p. 34. Endoceras montrealense Hall, Pal. New York, 5, pt. 2, 1879, p. 221 (gen. ref.).- Ruedemann, Bull. New York State Mus., 90, 1906, p. 424, pi. 9, fig. 8, fig. 8.- Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 42, fig. 1238. Orthoceras sordidum Whitfield, Bull. Amer. Mus. Nat. Hist., 3, p. 34, pi. 2, fig. Canadian (Beekmantown) : Near St. Eustache, Quebec; Fort Cassin, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 483 ENDOCERAS MULTITUBULATUM (Hall). See Vaginoceraa multitubulatum. Endoceras? ommaneyi Salter. Orthoceras Ommaneyi Salter, App. to Sutherland's Jour. Voyage in Baffin Bay, etc., 1852, p. 222, pi. 5, figs. 16, 17; in Sutherland, Quart. Jour. Geol. Soc., 9, p. 314. Haughton, Jour. Roy. Dublin Soc., 1, 1858, p. 249; in McClintock's "Discovery of the Fate of Franklin and his Companions" App. 4, 1859, p. 381. Endoceras? ommaneyi Foord, Cat. Foss. Ceph. British Mus., pt. 1, 1888, p. 155. Niagaran: Assistance Bay, Cornwallis Island, Arctic America. Endoceras protelforme Hall. Endoceras proteiforme Hall, Pal. New York, 1, 1847, p. 208, pis. 46, figs, la-b, 2; 48, figs. 1, 4; 49, figs, la-e; 50, figs. 1-3; 52, la-b; 53, figs, la-c; 55, fig. 1, p. 311, 85, figs, la-f. Gebhard, 9th Rep. New York State Cab. Nat. Hist. 1856, p. 45. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151, pi. 16, figs. l-3a, pi. 12, figs. 1-5; Man. Geol. 1860, p. 96, fig. 85. Hitchcock, Geol. Vermont, ], 1862, p. 299; ibid., 2, pi. 12, fig. 1. Chapman, Canadian Jour., n. s., 8, 1863, p. 21, fig. 131, p. 200, fig. 194; Expos. Min. Geol. Canada, 1864, p. 129, fig. 131, p. 172, fig. 194. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1876, p. 37, fig. 12c. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 130. Emerson, Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879, p. 579. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 86, pi. 12, figs. 1, la-c. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 153. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 243. Hyatt, Zittel-Eastman, Texb. Pal., 1900, p. 515, fig. 1056. Ruedemann Bull. New York State Mus., 90, 1906, p. 413, fig. 3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1029, pi. 50, figs. 1-ld. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 42, fig. 1239, 1240. Cameroceras proteiforme Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 777, pi. 48, figs. 1, 2; pi. 49, fig. 2; pi. 50, figs. 1, 2 (?3); pi. 51, figs. 1-3; pi. 53, figa. 4-5. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 169. Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 190, pi. 13, fig. 5. Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 580. Trenton: Middleville, Lowville, Watertown, etc., New York. The species has been identified from almost all the Mohawkian and Cincinnatian formations of the United States and Canada. Plc&iotype.C&t. No. 17401, U.S.N.M. (Walcott, 1884). Observation. The above references undoubtedly include a variety of forms. Endoceras proteiforme elongatum Hall. Endoceras proteiforme? var. elongatum Hall, Pal. New York, 1, 1847, p. 216, pi. 52, figs, la, b. Endoceras elongatum Keyes, Missouri Geol. Surv., 5, 1894, p. 220. Cameroceras proteiforme var. elongatum, Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 580 (gen. ref.) Trenton: Middleville, New York. ENDOCERAS PROTEIFORME var. LINEOLATUM Hall. See Orthoceras lineolatum. Endoceras proteiforme strangulatum Hall. Endoceras proteiforme var. strangulatum Hall, Pal. New York, 1, 1847, p. 212, pi. 46, figs. 4a-e. Trenton: Middleville, New York. ENDOCERAS PROTEIFORME var. TENUISTRIATUM Hall. See Orthocerae tenuistriatum. ENDOCERAS PROTEIFORME var. TENUITEXTUM Hall. See Orthoceras tenuitextum. 484 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Endoceras rapax Billings. Orthoceras rapax Billings, Canadian Nat. Geol., 5, 1860, p. 176. Endoceras rapax Miller, N. A. Geol. Tal., 1889, p. 437 (gen. ref.). Black River: Kingston, Ontario. Endoceras rottermundl (Barrande). Orthoceraa (Endoceras) rottemmndi Barrande, Syat. Sil. du Boh erne, 2d ser., 1866, pi. 220. Endoceras rottermundi Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 749, pi. 220, figs. 9-11. Foord, Cat. FOBS. Cepli. British Mus., 1, 1888, p. 151. Black River: Island in Lake Huron (?Thessalon Island). ENDOCERAS (NARTHECOCERAS) SIMPSONI Whiteaves. See Narthecoceras simpsoni. Endoceras subannulatum (Whitfield). Endoceraa (Cameroceras) subannulatum Whitfield, Ann. Rep. for 1879, Wisconsin, Geol. Surv., 1880, p. 56; Geol. Wisconsin, 4, 1882, p. 230, pi. 7, figs. 15, 16. Endoceras subannulatum Chamberlin, Geol. Wisconsin, 1, 1883, p. 159, fig. Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 78, pi. 5, figs. 2, 2a; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 202. Black River: Beloit, Wisconsin; Valley of Red River, western shore of Lake Winnipeg, East Selkirk, etc., Canada. Endoceras subcentrale Hall. Endoceras subcentrale Hall, Pal. New York, 1, 1847, p. 59, pi. 17, fig. 4. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 152. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 244. Black River (Watertown): W T atertown, New York. Endoceras vauuxemi (Conrad). Diploceras Vanuxemi Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1848, p. 267, pi. 16, fig. 2. Endoceras vanuxemi Miller, N. A. Geol. Pal., 1899, p. 437 (gen. ref.). Trenton: Trenton Falls, New York. Observation. Clarke (Geol. Minnesota, 3, 1897) says Diploceras is unques- tionably a Cameroceras and the type D. vanuxemi probably the same as Endoceras proteifonne. Endoceras virgatum (Hall). Colpoceras virgatum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 182, pi. 5, fig. 2 (doc. ed., p. 174). Endoceraa virgatum Hall, Pal. New York, 5, pt. 2, 1879, p. 220 (gen. ref.). Black River: Lewis County, New York. ENDODESMA Ulrich. Genotype: E. cuneatum Ulrich. Endodesma Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 525. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527. Endodesma compressum Ulrich. Endodesma compressum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 529, pi. 36, figs. 35, 37. Trenton (Prosser): Near Wykoff, Minnesota. Holotype.Czt. No. 46194, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 485 Endodesma cuneatum Ulrich. Endodesma cuneatum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 526, pi. 36, figs. 33, 34. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527, fig. 715d, e. Trenton (Prosser): NearWykoff, Minnesota. Holotype.Ca,t. No. 46195, U.S.N.M. Endodesma gesneri (Billings). Modiolopsis Gesneri Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 172, fig. 157a, b; Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 43, figs. 45a, b (adv. sheets, 1862). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 408, figs. Endodesma gesneri Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 528, pi. 37, figs. 3, 4. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527, fig. 715a. Black River and Trenton: Ottawa, etc., Ontario. PUsiotype Cat. No. 46196, U.S.N.M. Endodesma orthonotum (Meek and Worthen). Modiolopsis orthonota Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 295, pi. 1, fig. 7a. Modiolopsis rectifonnis Worthen, Bull. 1, Illinois State Mus. Nat. Hist., 1882, p. 38. Endodesma orthonotum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 527, pi. 37, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527, fig. 715b, c. Black River (Platteville) : Dunleith, Illinois. Plastotype. Cat. No. 46197, U.S.N.M. Endodesma postlatum Ulrich. Endodesma postlatum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 527, pi. 37, figs. 5, 6. Trenton (Galena): Dubuque, Iowa. Endodesma tranceps (Raymond). Cyrtodonta tranceps Raymond, Amer. Jour. Sci., 20, 1905, p. 372. Chazyan (Crown Point): Valcour Island, New York. Endodesma trentonense (Hall). Modiolopsis? trentonensis Hall, Pal. New York, 1, 1847, p. 161, pi. 34, fig. 10. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 412, fig. Lyonsia trentonensis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, fig. 4. Endodesma trentonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 504 (gen.ref.). Trenton: New York. Endodesma undosum Ulrich. Endodesma undosum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 529, pi. 36, fig. 38. Black River (Platteville): Near Beloit, Wisconsin. ENDYMINIA Vogdes. See Endymionia Billings. ENDYMION Billings. See Endymionia Billings. ENDYMIONIA Billings. Genotype: Endymion meeki Billings. Endymion Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 93, 94 (adv. sheets, 1862). Endymionia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 281. Zittel, Handb. Pal., 2, 1885, p. 594. Miller, N. A. Geol. Pal., 1889, p. 547. Beecher, Amer. Jour. Sci., 3d ser., 49, 1895, p. 307; ibid., 4th ser., 3, 1897, p. 187. Endyminia Vogdes, Cal. Acad. Sci., Occ. Pap., 4, 1893, p. 253. 486 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Endymionia meeki (Billings). Endymion meeki Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 94, fig. 84 (adv. sheets, 1862). Endymionia meeki Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 281. Miller, N. A. Geol. Pal., 1889, p. 547, fig. 1006. Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Table Head, PistoletBay, etc., Newfoundland (Quebec-N, P). ENOPLEURA Wetherby. See Ateleocystites Billings. ENOPLEURA BALANOIDES Wetherby. See Ateleocystites balanoides. ENOPLEURA CRUSTACEA Bather. See Ateleocystites balanoides. ENTEROLASMA Simpson. Genotype: Streptelasma strictum Hall. Enterolasma Simpson, Bull. New York State Mus., 39, 1900, p. 203. Grabau, Bull. New York State Mus., 45, 1901, p. 136; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 136. Enterolasma caliculum (Hall). Streptelasma calicula Hall, Pal. New York, 2, 1852, p. Ill, pi. 32, fig. la-k. Lambe, Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 113, pi. 7, figs. 4a-c. Petraia calicula Billings, Geol. Surv. Canada, Geol. Canada, 1863, p. 308, fig. 310. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 627, fig. Cyathophyllum? caliculum Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 601, pi. 34, fig. 8. Enterolasma caliculus Grabau, Bull. New York State Mus., 45, 1901, p. 137, fig. 29; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 137, fig. 29. Streptelasma (Enterolasma) caliculum Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 56, fig. 76g, 77. Enterolasma cf. caliculus Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 24, pi. 1, fig. 1, Silurian (Cataract-Guelph) : Rochester, Lockport, etc., New York; Grimsby, etc., Ontario; Lake Temiscaming, Quebec; Wisconsin, Ohio, Tennessee, Alabama, etc. Enterolasma geometricum (Foerste). Streptelasma calicula var. geometricus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 345, pi. 9, figs. 7, 12, 13. Streptelasma? geometricum Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 601, pi. 34, figs. 7, 12, 13. Upper Medinan (Brassfield) : Near Dayton and Todds Fork; near Wilmington, Ohio. Enterolasma waynense (Safford). Petraia Waynensis Safford, Geol. Tennessee, 1869, pp. 314, 320, pi. 5 (H), figs. 2a-h. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 628, figs. Streptelasma waynense Miller, N. A. Geol. Pal., 1889, p. 205 (gen. ref.). Enterolasma waynense Simpson, Bull. New York State Mus., 39, 1900, p. 204, figs. 13-15. Enterolasma (Petraia) waynense Foerste, Jour. Geol., 11, 1903, p. 713 (loc. occ.). Niagaran (Brownsport) : Wayne, Decatur, and Perry Counties, Tennessee. ENTOMIS Jones. Genotype: E. tuberosa Jones. Entomis Jones, Mem. Geol. Surv. Great Britain, Expl. Map 32, Scotland, 1861, p. 137. Miller, N. A. Geol. Pal., 1st App., 1892, p. 707. Ulrich, Zittel- BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 487 ENTO MIS Continued. Eastman Textb. Pal., 1, 1900, p. 646. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1040. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 362. Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 741. Entomis inadisonensts Ulrich. Entomis madisonensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 107, pi. 7, figs. 12a-b. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1008, p. 1046, pi. 53, figs. 8, 8b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 362, fig. 1667, r, s. Richmond (Whitewater-Saluda) : Near Madison,' Indiana. Holotype.Cat. No. 41565, U.S.N.M. Entomis waldronensis Ulrich. Entomis waldronensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 2, 1891, p. 183, pi. 12, figs. 3a, 3b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 363, fig. 1668m, n. Niagaran (Waldron): Waldron, Indiana. Holotype.G&t. No. 41566, U.S.N.M. ENTOMOLITUS PARADOXUS PISIFORMIS Linnaeus. See Agnostus pisiformis. ENTOMOSTRACITES PISIFORMIS Wahlenberg. See Agnostus pisiformis. ENTOMOSTRACITES SCARAB^EOIDES Wahlenberg. See Peltura scarabseoides. ENTOMOSTRACITES SPINULOSUS Wahlenberg. See Parabolina spinulosa. EOHARPES Raymond. Genotype: Harpes primus Barrande. Harpina Novak (not Burmeister, 1844) Sitz. d. k. bohm. Gesell. d. Wiss. Math.- Naturw. Cl. for 1884, 1885, p. 215. -Clarke, Geol. Minnesota, pt. 2, 1894, p. 756. Beecher, Amer. Jour. Sci., 49, 1895, p. 307; ibid., 3, 1897, p. 185. Eoharpes Raymond, Amer. Jour. Sci., 19, 1905, p. 378; Zittel-Eastman Textb. Pal., 1913, p. 711. Eoharpes antiquatus (Billings). Harpes antiquatus Billings, Canadian Nat. Geol'., 4, 1859, p. 469, fig. 38; Geol. Canada, Geol. Surv. Canada, 1863, p. 133, fig. 67. Harpina antiquatus Raymond, Annals Carnegie Mus., 3, 1905, p. 330, pi. 10, fig. 1. Eoharpes antiquatus Raymond, 7th Rep. Vermont State Geol., 1910, p. 214, pi. 32, fig. 1; Ann. Carnegie Mus., 7, No. 1, 1910, p. 60. Chazyan: Mingan Islands, Canada (Mingan); Valcour, Valcour Island and Chazy, New York; Isle La Motte, Vermont (Day Point, Crown Point). Eoharpes cassinensis (Whitfield). Harpes cassinensis Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 182, pi. 5, figs. 3, 4. Seely, Vermont State Geol., Rep. 7, 1910, pi. 55, figs. 3, 4. Canadian (Beekmantown) : Fort Cassin, Vermont. Eoharpes consuetus (Billings). Harpes consuetus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 64. Anticostian (Chicotte): Southwest Point, Anticosti. Eoharpes dentonl (Billings). Harpes Dentoni Billings, Canadian Nat. Geol., 8, 1863, p. 36, fig.; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 183, fig. 166. Eoharpes dentoni Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 33, pi. 3, fig. 5. Trenton (Curdsville) : Ottawa, Ontario. 488 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eoharpes escanabhe (Hall). Harpes escanabise Hall, Geol. Lake Sup. Land Dist., Foster and Whitney's Rep., 1851, p. 211, pi. 27, fig. 2a. Trenton: Escanaba River below Indian Creek, Michigan. Eoharpes grant! (Billings). Harpes granti Billings, Pal. Foss., 1, Geol. Sun*. Canada, 1865, p. 326, fig. 314. Canadian (Beekmantown) : Stanbridge, Quebec. Eoharpes mlnnesotensls (Clarke). Harpina minnesotensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 755, fig. 76. Trenton (Prosser) : Hader, Minnesota. Holotype.G&t. No. 41889, U.S.N.M. Eoharpes ottawaensls (Billings). Harpes ottawaensis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 182, fig. 165; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 28. Miller, N. A. Geol. Pal., 1889, p. 549, fig. 1011. Harpina ottawaensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 757, fig. 79. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 191, pi. 14, figs. 1, 2. Ray- mond, Annals Carnegie Mus., 3, 1905, p. 331, pi. 10, fig. 2. Harpes (Harpina) ottawaensis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 258, fig. 1546. Eoharpes ottawaensis Bassler, Bull. Virginia Geol. Surv., 29, 1909, p. Ill, fig. 10. Raymond, 7th Rep. Vermont State Geol., p. 215, pi. 32, fig. 2. Ruedemaun, Bull. New York State Mus., 162, p. 116, pi. 9, fig. 1. Chazyan: Valcour, etc., New York (Day Point); Virginia (Liberty Hall.) Trenton: Ottawa, Ontario; New Jersey, New York, Minnesota, etc. Plastotype.Ca,t. No. 41887, U.S.N.M. Eoharpes pustulosus (Hall). Ceraurus? pustulosus Hall, Pal. New York, 1, 1847, p. 246, pi. 61, figs. 2a, b. Harpes pustulosus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 67 (gen. ref.). Eoharpes pustulosus Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 542. Black River: Watertown, New York. Eoharpes rutrellum (Clarke). Harpina rutrellum Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 757, figs. 80, 81. Trenton (Prosser): Cannon Falls, and Minneapolis, Minnesota. Holotype.Csit. No. 41888, U.S.N.M. EOORTHIS Walcott. Genotype: Orthis remnicha Winchell. Orthis (Plectorthis) Walcott (not Hall and Clarke), Proc. U. S. Nat. Mus., 28, 1905, pp. 257-259. Plectorthis Grabau and Shimer (part) (not Hall and Clarke), N. A. Index Fossils, 1907, 1, p. 250. Eoorthis Walcott, Smiths. Misc. Coll., 53, 1908, pp. 102-104; ibid., 53, No. 4, 1908, pi. 11, and pp. 142 and 148; Mon. U. S. Geol. Surv., 51, 1912, p. 772. Schu- chert, Zittel-Eastman Textb. Pal., 1913, p. 381. Orthis (Orusia) Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 273. Omsia Walcott, Smiths. Misc. Coll., 53, 1908, pi. 11, pp. 142, 148; U. S. Geol. Surv., Mon., 51, 1912, p. 765 (Genotype: Anomites lenticularis Wahlenberg). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 489 Eoorthis atava (Matthew). Strophomena atava Matthew, Trans. Roy. Soc. Canada, 1st ser., 1893, 10, sec. 4, pp. 102-103, pi. 7, fig. 8a-f. Moberg and Segerberg, Medd. fran. Lunds Geol. Faltklubb, ser. B., No. 2, 1906. Rafinesquina? atava Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 338. Orthis (Plectorthis) atava Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 259-260. Eoorthis atava Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 774, pi. 95, figs. 7, 7a-b. Canadian (Bretonian Div. C 3a): Navy Island, St. John Harbor, New Bruns- wick. Eoorthis desmopleura (Meek). Orthis coloradoensis Meek (not Shumard), Proc. American Phil. Soc., 2, 1870, p. 425. Orthis desmopleura Meek, Hayden's U. S. Geol. Surv. Wyoming, 1872, p. 295. Orthis (Plectorthis) desmopleura Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 261. Eoorthis desmopleura Walcott, Mon. U. S. Geol. Surv., 1912, 51, p. 777, pi. 96, figs. 1, la-r. Upper Cambrian: Utah, New Mexico, Pennsylvania, etc. Lower Ordovician: Glen Eyre, Queens Canyon, near Manitou, and Colorado Springs, Colorado. Holotype and plesiotypes.C&t. Nos. 7859, 52317, 52320, U.S.N.M. Eoorthis desmopleura nympha Walcott. Orthis (Plectorthis) desmopleura nympha Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 262. Eoorthis desmopleura nympha Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 778, pi. 96, fig. 2, Lower Ordovician: Williams Canyon, Manitou, Colorado; also Upper Cambrian of Wyoming. Holotype Cat. No. 52333, U.S.N.M. Eoorthis johannensis (Matthew). Orthisina(?) johannensis Matthew, Trans. Roy. Soc. Canada, 1st ser., 9, sec. 4, 1892, pp. 49-50, pi. 12, figs. 13a-c. Clitambonites? johannensis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184. Orthis (Plectorthis) johannensis Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 265, 266. Eoorthis johannensis Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 781, pi. 97, figs. 10, lOa. Canadian (Bretonian Div. C 3a): Germaine Street, St. John, New Brunswick. Eoorthis (Orusla) lenticularis (Wahlenberg). Anomites lenticularis Wahlenberg, Nova Acta Regiae Soc. Sci. Upsal., 8, Petrif. tell. Svecanae, 1821, pp. 66, 67. Orthis lenticularis Davidson, British Foss. Brachiopoda, 3, pt. 7, 1869, pp. 230-232, pi. 33, figs. 22-28 Roemer, Leth. geog., pt. 1, Leth. Pal., Atlas, 1876, pi. 2, figs. 4a-c. Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, pp. 46-48, pi. 12, figs. 9a-d; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, pp. 213-116, pi. 17, figs. la-d. Orthis (Orusia) lenticularis Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 273-276. Orusia lenticularis Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 98, figs. 1, la-p; 2, 2a-k; 3, 3a-b; 6, 6a-c. (See for complete bibliography.) Orthis lenticularis strophomenoides Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 49, pi. 12, figs. 12-b; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 217, pi. 17, figs. 4a-b. 490 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eoorthis (Orusia) lenticularis Continued. Olenus limestone and shale of Norway and Sweden; Lingula flags of North Wales, etc. Canadian (Bretonian Div. C 3a-c): St. John, New Brunswick and Cape Breton, Nova Scotia. Eoorthis (Orusia) lenticularis atrypoides (Matthew). Orthis lenticularis var. atrypoides Matthew, Trans. Royal Soc. Canada, 9, 1892, p. 48, pi. 12, figs, lla, lib; Geol. Surv. Canada, Kept. Cambrian Rocks Cape Breton, 1903, p. 217, pi. 17, figs. 3a-b. Orthis (Orusia) lenticularis atrypoides Walcott, Proc. U. S. Nat. Mus., 28, 1905 p. 276. - Orusia lenticularis atrypoides Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 769, pi. 98, fig. 5. Canadian (Bretonian Div. C 3a): Germaine Street, St. John, New Brunswick. Eoorthis (Orusia) lenticularis lyncioides (Matthew). Orthis lenticularis var. lyncioides Matthew, Trans. Royal Soc. Canada, 9, 1892, p. 49, pi. 12, figs. lOa-lOc; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 216, pi. 17, figs. 2a-c. Orthis (Orusia) lenticularis lyncioides Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 277. Orusia lenticularis lyncioides Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 769, pi. 98, fig. 4. Canadian (Bretonian Div. C 3a): Germaine Street, St. John, New Brunswick. Eoorthis newtonensis (Weller). Orthis newtonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, pp. 113, 114, pi. 1, figs. 3-5. Orthis (Plectorthis) newtonensis Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 267, Eoorthis newtonensis Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 784, pi. 97. figs. 9, 9a. Upper Cambrian or Ozarkian (Kittatinny): Newton, Sussex County, New Jersey. Eoorthis wichitaensis Walcott. Orthis (Plectorthis) wichitaensis Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 271-272. Eoorthis wichitaensis Walcott, Mon. U. S. Geol. Surv. 51, 1912, p. 790, pi. 94, figs, la-o, u. Lower Ordovician: Near Manitou, El Paso County, Colorado. Also Upper and Middle Cambrian of Oklahoma, Missouri, etc. Holotype and paratypes.Gat. Nos. 52381, 52384, U.S.N.M. EOPHYTON (SCOLITHUS) DISBAR James. See Scolithus dispar. EOPOLYCHJETUS Ruedemann. Genotype: E. albaniensis Ruedemann. Eopolychajtus Ruedemann, Bull. New York State Mus., 42, 1901, p. 573. Eopolychsetus albaniensis Ruedemann. Eopolychsetus albaniensis Ruedemann, Bull. New York State Mus., 42, 1901, 573, pi. 1, fig. 13. Trenton (Snake Hill): Rural Cemetery, near Albany, New York. I EOPTERIA Billings. Genotype: E. typica Billing Eopteria Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221. Zittel, Handb. Pal., 2, 1881, p. 36. Miller, N. A. Geol. Pal., 1889, p. 480. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 491 Eopterla? ornata Billings. Eopteria ornata Billings, Pal. Foss. 1, Geol. Surv. Canada, 1865, p. 307, fig. 299, Ozarkian? (Levis- erratic): Point Levis, Quebec. Eopteria rlchardsoni Billings. Eopteria Richardsoni Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 306. text fig. 298. Miller, N. A. Geol. Pal., 1889, p. 480, fig. 821. Canadian (Beekmantown): Near St. Antoine, above Quebec, Canada. Eopteria typica Billings. Eopteria typica Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221. Canadian (Quebec G.): Portaux Choix, Newfoundland. EOSPONGIA Billings. Genotype: E. roemeri Billings. Eospongia Billings, Geol. Vermont, 2, 1861, p. 955; Rep. Econ. Geol., etc., Vermont, 1862, p. 227.; Pal. Fossils, 1, Geol. Surv. Canada, 1865, pp. 18, 19 (adv. sheets, 1861). Miller, N. A. Geol. Pal., 1889, p. 159. Seely, Rep. State Geol. Vermont, 3, 1902, p. 153. Eospongia roemeri Billings. Eospongia roemeri Billings, Geol. Vermont, 2, 1862, p. 956; Rep. Econ. Geol., etc., Vermont, 1862, p. 228. Billings, Pal. Foss., 1, Geol., Surv. Canada, 1865, p. 19 (adv. sheets, 1861). Chazyan (Mingan): Mingan Islands, Canada. EOSPONGIA VARIANS Billings. See Zittelella varians. EOTO MARIA Ulrich and Scofield. Genotype: E. canalifera Ulrich. Pleurotomaria and Raphistoma (part) of American authors. Eotornaria, Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 954, 1000. Koken, Neues Jahrb. Min., Geol. and Pal., 1, 1898, p. 19. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642. Eotomaria areyi Clarke and Ruedemann. Eotomaria areyi Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 68, pi. 8, fig. 2. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 643. Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 187, pi. 23, fig. 5. Niagaran (Guelph): Rochester, New York. Upper Monroan (Lucas and Amherstburg) : Detroit River region, Michigan. Eotomaria canalifera Ulrich. Eotomaria canalifera Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1002, pi. 69, figs. 9-14. (E. sublaevis, p. 954, in error.) Pleurotomaria canalifera Miller, N. A. Geol. Pal., 1897, p. 769 (gen. ref.). Stones River (Murfreesboro) : Near Murfreesborc, Tennessee. Cotypes.Cat. No. 46055, U.S.N.M. Eotomaria? cassina (Whitfield). Lophospira Cassina Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 312, pi. 25, figs. 1-4. Seely, Vermont State Geol., Rep. 7, 1910, pi. 59, figs. 1-4. Eotomaria? cassina Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 991 (gen. ref.) Murchisonia cassina Miller, N. A. Geol. Pal., 1899, p. 411 (gen. ref.). Canadian (Beekmantown): Fort Casein, Vermont. Eotomaria dryope (Billings). Pleurotomaria Dryope Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 170, fig. 154a, b. 492 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eotomaria dry ope Continued. Eotomaria dryope Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1003, pi. 69, figs. 21-25. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 642, fig. 875c-e. Black River: Pauquettes Rapids, Ottawa River, Canada; Minneapolis and Can- non Falls, Minnesota (Platteville); Lincoln County, Missouri (Auburn); Maury County, Tennessee. Pleviotypes.Czt. Nos. 45804, 45805, U.S.N.M. Eotomaria durhamensis (Whiteaves). Pleurotomaria Durhamensis Whiteaves, Pal. Foes., Geol. Surv. Canada, 3, pt. 1, 1884, p. 24, pi. 4, fig. 2; ibid., pt. 2, 1895, p. 77. Eotomaria durhamensis Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 68, pi. 10, fig. 17. Niagaran (Guelph): Durham, Ontario; Rochester, New York. Eotomaria elevata Ulrich. Eotomaria elevata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1005, pi. 70, figs. 68-69. Scalites elevatus Miller, N. A. Geol. Pal., 2d App., 1897, p. 770 (gen. ref.). Trenton (Catheys): Hartsville, Tennessee. Holotype.C&t. No. 45806, U.S.N.M. Eotomaria galtensis (Billings). Pleurotomaria Galtensis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 343, fig. 349; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 154, fig. 136 (adv. sheets, 1862). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 709, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 75, pi. 11, fig. 7. Eotomaria galtensis Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 70, pi. 10, figs. 10-12. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 643, fig. 877. Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 189, pi. 25, fig. 1, 2. Niagaran (Guelph): Gait, etc., Ontario; Oak Orchard Creek, New York; Wis- consin. Upper Monroan (Lucas and Amherstburg): Detroit River region, Michigan. EOTOMARIA HALEI Clarke and Ruedemann. See Euomphalopterus halei. Eotomaria kayseri Clarke and Ruedemann. Eotomaria kayseri Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 70, pi. 7, fig. 1; pi. 8, fig. 1. Niagaran (Guelph): Rochester, New York. Eotomaria labiosa Ulrich. Eotomaria labiosa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1003, pi. 69, figs. 15-17. Stones River (Murfreesboro) : Murfreesboro, Tennessee. Holotype.C&t. No. 46056, U.S.N.M. Eotomaria laphami (Whitfield). Pleurotomaria Laphami Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Si 1878, p. 84; Geol. Wisconsin, 4, 1882, p. 296, pi. 18, fig. 9. Chamberl Geol. Wisconsin, 1, 1883, p. 193, fig. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 455, pi. 11, fig. 4. Pleurotomaria (Eotomaria) laphami Clarke and Ruedemann, Mem. New Yc State Mus., 5, 1903, p. 70 (gen. ref.). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 493 Eotomaria laphami Continued. Eotomaria laphami Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 70 (gen. ref.). Niagaran: Ashford, Wisconsin (Racine); Delphi, Indiana. Eotomaria obsoleta Raymond. Eotomaria obsoletum Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 376; Ann. Carnegie Mus., 4, 1908, p. 192, pi. 49, figs. 12-14. Chazyan (Day Point, Crown Point) : Crown Point and Valcour Island, New York. Eotomaria supracingulata (Billings). Pleurotomaria supracingulata Billings, Rep. Progr., Geol. Surv. Canada, 1857, p. 302; Geol. Canada, Geol. Surv. Canada, 1863, p. 181, fig. 175. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 717, fig. Eotomaria supracingulata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1894, p. 1004, pi. 69, figs. 26-29. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 643, fig. 876. Raphistoma (Pleurotomaria) nasoni Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 39, fig. 2. Raphistoma Nasoni Whitfield, Geol. Wisconsin, 4, 1882, p. 215, pi. 6, figs. 2, 3. Chamberlin, Geol. Wisconsin, 1, 1883, p. 157, fig. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 78, pi. 11, figs. 21, 21a. Pleurotomaria nasoni Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 34. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 61, pi. 8, figs. 4-7. Black River: St. Joseph's Island, Lake Huron; Dixon, etc., Illinois; Minneapolis, etc., Minnesota; Janesville and Beloit, Wisconsin; Eureka District, Nevada (Pogonip). Pksiotypes.V&t. Nos. 45807, 45808, U.S.N.M. Eotomaria vicina Ulrich and Scofield. Eotomaria vicina Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1003, pi. 69, figs. 18-20. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 643, fig. 875f. Black River (Platteville) : Minneapolis, Minnesota; Mineral Point, Wisconsin. Cotype. Cat. No. 45809, U.S.N.M. EOTROPHONIA Ulrich. Genotype: E. setigera Ulrich. Eotrophonia Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 91. Eotrophonia setigera Ulrich. Eotrophonia setigera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 91, pi. 4, fig. 5. Eden (Economy): Covington, Kentucky. Cotypes.G&t. No. 46535, U.S.N.M. EREMOCERAS Hyatt. Genotype: Cyrtoceras syphax Billings. Eremoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 282; Zittel-Eastman Textb. Pal., 1900, p. 530; ibid., 2d ed., 1913, p. 611. Eremoceras syphax (Billings). Cyrtoceras Syphax Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 194, text fig. 178. Eremoceras syphax Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 282 (gen. ref.). Canadian (Levis-limestone) : Point Levis, Quebec. ERIDONTCHIA Ulrich. Genotype: E. apicaUs Ulrich. Eridonychia Ulrich, Geol. Surv. Ohio, 7, 1893, p. 639. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 980. 494 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eridonychia a pic alls Ulrich. Eridonychia apicalis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 639, pi. 47, fig. 1. Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. Holotype.Czt. No. 46198, U.S.N.M. Eridonychia crenata Ulrich. Eridonychia crenata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 640, pi. 47, fig. 3. Richmond (Waynesville) : Waynesville, Ohio. Holotype.-Vat. No. 46199, U.S.N.M. Eridonychia paucicostata Ulrich. Eridonychia paucicostata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 6*0, pi. 47, fig. 2. Maysville (Fairmount) : Covington, Kentucky. Holotype Cat. No. 46200, U.S.N.M. ERIDOPHTLLUM Edwards and Haime. Genotype: E. verneuilanum Edwards and Haime. Eridophyllum Edwards and Haime, Mon. d. Polyp. Foss. d. Terr Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), pp. 171-423. Pictet, Traite" de Pal.. 2d ed., 4, 1857, p. 459. Billings, Canadian Jour., n. s., 4, 1859, p. 130. Milne- Edwards, Hist. Nat. Corall., 3, 1860, p. 414. Dybowski, Archiv. Naturf. Liv-, Ehst-undKurl.,5, 1873, p. 337. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 34. Zittel, Handb. Pal., 1, 1879, p. 233. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 356. Miller, N. A. Geol. Pal., 2d App., 1897, p. 728. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, pp. 25, 26. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71. Eridophyllum dividuum Davis. Eridophyllum dividuum Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, 1885, pi. 109, figs. 3-12. Niagaran (Louisville): Louisville, Kentucky. Cotype.C&t. No. 52776, U.S.N.M. Eridophyllum eruciforme Davis. Eridophyllum eruciforme Davis, Kentucky Foss. Corals, Geol., Surv. Kentucky, pt. 2, 1885, pi. 107. Niagaran (Louisville): Louisville, Kentucky. ERIDOPHYLLUM HURONICUM Davis. See Diphyphyllum huronicum. Eridophyllum louisvillense Greene. Eridophyllum Louisvillensis Greene, Cont. Indiana Pal., 1, pt. 11, 1903, p. 98, pi. 31, fig. 1. Niagaran (Louisville): Louisville, Kentucky. Eridophyllum proliferum Foerste. Eridophyllum proliferum Foerste, Jour. Geol., 11, 1903, p. 713. Niagaran (Brownsport) : Near Brownsport Furnace, near Linden, and near Savannah, Tennessee. Eridophyllum rugosum Edwards and Haime. Eridophyllum? rugosum Edwards and Haime, Pol. Foss. des Terr. Pal., 1851, p. 424, pi. 10, figs. 4-4b. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 357. Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 255, pi. 3, fig. 6. Davis, Kentucky, Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 109, fig. 1; pi. 110. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 223, figs. Simpson, Bull. New York State Mus., 8, 1900, p. 123, fig. Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 72, fig. Ill; 113 a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 495 Eridophyllum rugosum Continued. Diphyphyllum rugosum Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 122, pi. 45, fig. 2. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 157. Middle Silurian: Gotland; Louisville, Kentucky; CabotsHead, Georgian Bay, etc., Ontario (Niagaran). Eridophyllum sentum Davis. Eridophyllum sentum Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 51, fig. 4; pi. 108, fig. 1. Niagaran (Louisville): Louisville, Kentucky. ERIDOPHYLLUM VENNORI Billings. See Synaptophyllum multicaule. ERIDORTHIS Foerste. See Hebertella subgenus Eridorthis. ERIDOTRTPA Ulrich. Genotype: E. mutabilis Ulrich. Batostomella (in part) Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 375, 432. Eridotrypa Ulrich, Geol. Minnesota, 3, 1893, p. '264. Miller, N. A. Geol. Pal., 2d App., 1897, p. 756. NicklesandBassler, Bull. U. S. Geol. Surv., 173, p. 32. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, p. 745. Hennig, Archiv. fur Zool., 4, 21, p. 36. Grabau and Shimer, N. A. Index Fossils, 1, 1908, p. 134. Bassler, Bull. U. S. Nat. Mus., 77, p. 242. Eridotrypa aedilis (Eichwald). Cladopora aedilis Eichwald, Bull. Soc. Nat. Moscou, No. 4, 1855, p. 457; Leth. Rossica, 1, 1860, p. 404, pi. 24, figs. 12, 13. Monticulipora aedilis Dybowski, Die Chsetetiden Ostbaltischen Silur-Formation, 1877, p. 98, pi. 3, figs. 5, 5a. Eridotrypa sediUs Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 242, 244, pi. 4, figs. 5, 5a; figs. 137, 138. Eridotrypa mutabilis Ulrich, Geol. Minnesota, 3, 1893, p. 265, pi. 26, figs. 20-32. Sardeson, Jour. Geol., 9, 1901, p. 13, pi. A, fig. 11. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 134, fig. 188f, 190f. Middle Ordovician: Various localities in Esthonia, Russia; Goodhue, Ramsey, and Dakota Counties, Minnesota; Wisconsin, Tennessee, Kentucky, Ontario, etc. (Black River and Trenton). Pkswtypes.Csit. No. 43536, U.S.N.M. Cotypes of E. mutabilis. Eridotrypa aedilis minor (Ulrich). Eridotrypa mutabilis var. minor Ulrich, Geol. Minnesota, 3, 1893, p. 266, pi. 26, figs. 20, 21, 29, 30. Eridotrypa sedilis minor Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 245, fig. 139. Middle Ordovician: Cannon Falls, etc., Minnesota (Trenton-Prosser) ; Wesenberg, Esthonia, Russia (Wesenberg). Cotypes. Cat. No. 43537, U.S.N.M. Eridotrypa briareus (Nicholson). Chaetetes briareus Nicholson, Pal. Ohio, 2, 1875, p. 202, pi. 21, 13-13b. Monticulipora (Monotrypa) briareus Nicholson, Genus Monticulipora, 1881, p. 198, pi. 2, figs. 5-5c. Monticulipora briarea James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 172. J. F. James, ibid., 16, 1894, p. 191. Monticulipora (Chsetetes) briareus Chamberlin, Geol. Wisconsin, 1, 1883, p. 172, fig. 496 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Erldotrypa briareus Continued. Monotrypella briarea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 248, 256 (gen. ref.). Eridotrypa briareus Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 237. Nickles, Bull. Kentucky Geol. Surv. No. 5, 1905, p. 43, pi. 1, figs. 4, 5. Trenton: Covington, Kentucky. An abundant species in central Kentucky (Cynthiana) and central Tennessee (Bigby, Cathey). Erldotrypa echinata (Hall). Trematopora echinata Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 11, figs. 1-5; ibid., Mus. ed., 1879, p. 112, pi. 11, figs. 1-5; llth Ann. Rep., Indiana Geol. Nat. Hist., 1882, p. 233, pi. 10, figs. 1-5. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 1200, figs. Eridotrypa echinata Ulrich, Geol. Minnesota, 3, 1893, p. 265. Niagaran (Waldron): Waldron, Indiana. Eridotrypa exigua Ulrich. Eridotrypa exigua Ulrich, Geol. Minnesota, 3, 1893, p. 266, pi. 26, figs. 17-19. Bassler, Bull. U. S. Nat/Mus., 77, 1911, pp. 245, 246, fig. 140. Trenton: Cannon Falls, Minnesota (Prosser) ; Trenton Falls, New York; Chimney Point, Vermont. Middle Ordovician (Jewe) : Near Jewe, Esthonia, Russia. Cotypes. Cat. No. 43535, U.S.N.M. ERIDOTRYPA MUTABILIS Ulrich. See Eridotrypa sedilis. ERIDOTRYPA MUTABILIS var. MINOR Ulrich. See Eridotrypa sedilis minor. Eridotrypa nodulosa Bassler. Eridotrypa nodulosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 30, pi. 11, figs. 14, 15; pi. 25, figs. 1-3. Clinton (Rochester) : Lockport and Rochester, New York. Cotypes. Czt. No. 35524, U.S.N.M. Eridotrypa parvulipora Ulrich and Bassler. Eridotrypa parvulipora Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 272, pi. 43, figs. 5-8; pi. 44, figs. 7, 8. Helderbergian (Keyser): Keyser and Cherry Run, West Virginia; Cumberland, Maryland. Cotypes G&t. No. 53643, U.S.N.M. Eridotrypa similis Bassler. Eridotrypa similis Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 31, 32, pi. 12, figs. 10-14; pi. 26, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 134. Clinton (Rochester): Lockport, etc., New York; Grimsby and Thorold, Ont Cotypes. Cat. No. 35519, U.S.N.M. Eridotrypa simulatrix (Ulrich). Batostomella simulatrix Ulrich, Geol. Surv. Illinois, 8, 1890, p. 432, pi. 35, 1-lg. Eridotrypa simulatrix Ulrich, Geol. Minnesota, 3, 1893, p. 265. Cumings, Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 828, pi. 16, figs. 4, 4b; 29, figs. 5, 5a. Monticulipora simulatrix J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 194. Richmond: Clarksville, Waynesville, and other localities in Ohio; Weisberg and Versailles, Indiana; Savannah, Illinois; Anticosti. Cotypes. Cat. No. 43744, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 497 Erldotrypa sollda (Hall). Trematopora solida Hall, Pal. New York, 2, 1852, p. 153, pi. 40a, figs. 6a-c. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258. Homotrypa? Bolida Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 293. Eridotrypa solida Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 30, 31, pi. 12, figs. 7-9; pi. 24, figs. 20-23; pi. 25, fig. 16. Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby and Thor- old, Ontario. Plesiotypes Cat. No. 35525, U.S.N.M. Eridotrypa spfnosa Bassler. Eridotrypa spinosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 29, 30, pi. 12, figs. 1-3; pi. 25, fig. 15. Clinton: Grimsby, Ontario; Lockport, Lewiston, and Rochester, New York (Rochester); Osgood, Indiana (Osgood). Cotypes. Cat. Nos. 35521, 35739, U.S.N.M. Eridotrypa striata (Hall). Trematopora striata Hall, Pal. New York, 2, 1852, p. 153, pi. 40, fig. 7a-d. Grabau, Bull. New York State Mus., 45, 1901, p. 167, fig. 66. Eridotrypa striata Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 32, pi. 12, figs. 4-6; pi. 24, figs. 3-6; pi. 25, fig. 14. Clinton: Lockport, Niagara Falls, and Rochester, New York; Grimsby, Ontario (Rochester); Osgood, Indiana (Osgood). Cotypes Cat. No. 35545, U.S.N.M. Eridotrypa trentonensis (Nicholson). Monticulipora (Heterotrypa) Trentonensis Nicholson, Genus Monticulipora, 1881, p. 149, fig. 28. Monotrypella Trentonensis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 15. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 83. Eridotrypa trentonensis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1890, p. 238. Trenton: Peterboro, Ontario; Mercer County, Kentucky. ERIDOTRYPA VEVAYENSIS Cumings. See Batostoma jamesi. ERIPTYCHIUS Walcott. Genotype: E. americanus Walcott. Eriptychius Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 167. Erlptychius americanus Walcott. Eriptychius americanus Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 167, pi. 4, figs. 5-11. Black River (Harding) : Canyon City, Colorado. Erisocrinus? bipartitus (Troost). Donacicrinites bipartitus Troost MS., 1850. Erisocrinus? bipartitus (Troost) Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 98, pi. 6, figs. 8, 9. ?Niagaran (Brownsport): Decatur County, Tennessee. Observation. Probably a Graphiocrinus from the Carboniferous of the Missis- sippi Valley and not from Decatur County, Tennessee [Frank Springer.] ESCHARA BIFURCATA Van Cleve. See Pachydictya bifurcata. ESCHARA BIPUNCTATA Van Clcve. See Phsenopora expansa. 84243 Bull. 9215 32 498 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ESCHARA COMPRESSA Van Cleve. See Phsenopora magna. ESCHARA MULTIFIDA Van Cleve. See Phsenopora multifida. Eschara ovatopora Troost. Not recognizable. Escharia ovatopora Troost, 5th Geol. Rep. Tennessee, 1840, p. 75. Ordovician: Near Nashville, Tennessee. ESCHARA RAMOSA Van Cleve. See Phaenopora fimbriata. Eschara reticulata Troost. Not recognizable. Escharia reticulata Troost, 5th Geol. Rep. Tennessee, 1840, p. 75. Ordovician: Near Nashville, Tennessee. ESCHARINA DISTORTA James. See Rhinopora verrucosa. ESCHAROPORA Hall. Genotype: E. recta Hall. Escharopora Hall, Pal. New York, 1, 1847, p. 72. Eichwald, Lethaea Rossica, 1, 1860, p. 435. Miller, N. A. Geol. Pal., 1889, p. 301. Ulrich, Geol. Min- nesota, 3, 1893, p. 167; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 279. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 45. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 156. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 745. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 115; Zittel-Eastman Textb. Pal., 1913, p. 345. Nicholsonia Waagen and Wentzel, Pal. Indica, 13th ser., 1886, p. 874. Ptilodictya (in part) of various authors. Escharopora acuminata (James). Ptilodictya acuminata James, Catal. Foss. Cincinnati Group, p. 3. Escharopora acuminata Ulrich, Geol. Minnesota, 3, 1893, p. 167. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 36. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 829. Sagenella striata James, Paleontologist, No. 3, 1899, p. 22. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 53. Eden: Cincinnati, Ohio, and vicinity. Observation. Sagenella striata was founded upon the expanded base of this species. Escharopora angularis Ulrich. Escharopora angularis Ulrich, Geol. Minnesota, 3, 1893, p. 168, pi. 12, figs. 1-4, 30, 31. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 344, fig. 504a. Black River (Platteville and Decorah): Minneapolis, etc., Minnesota; High Bridge, Kentucky. Cotypes.Cat. No. 43538, U.S.N.M. ESCHAROPORA (PTILODICTYA) ANGTJSTA Hall. See Ptilodictya angusta. Escharopora briareus (Ulrich). Ptilodictya briareus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 165, pi. 7, figs. 6-6b. Escharopora briareus Ulrich, Geol. Minnesota, 3, 1893, p. 167. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 239. Stones River (Lebanon): Lebanon, Shelbyville, and Columbia, Tennessee. Eolotype.Cat. No. 43728, U.S.N.M. Observation. The form called by Saffora Ptilodictya multiramis (not defined) is probably referable to this species. Escharopora confluens Ulrich. Escharopora confluens Ulrich, Geol. Minnesota, 3, 1893, p. 171, pi. 13, figs. 1-11. Black River (Decorah): Minneapolis, etc., Minnesota, Cotypes. Cat. No. 43539, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 499 Escharopora falciformis (Nicholson). Ptilodictya cruciformis D'Orbigny, Prodr. de Pal., 1, 1849, p. 21 (not defined). Boule and Thevenin, Ann. de Pal., 1, fasc. 1, 1906, p. 4, pi. 1, figs. 7-9. Ptilodictya falciformis Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 177, pi. 14, figs. 1-lb; Pal. Ohio, 2, 1875, p. 259, pi. 25, figs. 7, 7b; Pal. Province Ontario, 1875, p. 13, fig. 2. Zittel, Handb. Pal., 1, 1880, p. 604, fig. 431. Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 265, pi. 12, fig. 1. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 827, figs. Escharopora falciformis Ulrich, Geol. Minnesota, 3, 1893, p. 167. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 156. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 830, pi. 16, figs. 5, 5a. Escharopora recta Quenstedt, Roehren-und Sternkorallen, 1881, p. 94, pi. 146, pp. 69, 70. Crateripora lineata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 30, pi. 7, figs. 28, 28a. Crateripora lineata var. expansa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 30. Maysville: Cincinnati, Ohio, and vicinity (Mt. Hope, Fairmount); Nashville and Columbia, Tennessee (Leipers) ; Appalachians of Tennessee and Virginia. Plesiotypes.C&t. Nos. 43729, 43730, U.S.N.M. Holotype of C. lineata and var. expansa. Observation. Crateripora lineata and var. expansa were applied to the articu- lating basal sockets of this species before their true nature was known. Escharopora hilll (James). Ptilodictya Hilli James, Paleontologist, No. 1, 1878, p. 4. Ulrich, Jour. Cincinnati Nat. Hist., 5, 1882, pi. 7, figs. 7, 7a. Nettleroth, Kentucky Fossil Shells, 1885, p. 30, pi. 33, figs. 1, 2, 4, 5. Ulrich, Geol. Minnesota, 3, 1893, p. 167. Nickles, Bull. Kentucky Geol. Surv., No. 5, 1905, p. 53, pi. 3, figs. 2, 3. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 37. Maysville (Fairmount) : Bank of the Ohio River at Cincinnati, Ohio (drift) ; Boyle and Lincoln Counties, Kentucky. Plesiotypes Cat. Nos. 43724, 51377, U.S.N.M. Escharopora libana (Safford). Ptilodictya? libana Safford, Geol. Tennessee, 1869, p. 286. Escharopora libana Ulrich, Geol. Minnesota, 3, 1893, p. 167. Stones River (Lebanon): Lebanon, Tennessee. Cotypes.Ca.t. No. 43477, U.S.N.M. Escharopora? limitaris Ulrich. Escharopora? limitaris Ulrich, Geol. Minnesota, 3, 1893, p. 172, figs. 9a-b, pi. 13, figs. 12, 13. Black River (Decorah): Minneapolis and Preston, Minnesota; Lake Nipissing, Ontario. Cotypes. Cat. No. 43807, U.S.N.M. Escharopora maculata (Ulrich). Ptilodictya maculata Ulrich Jour., Cincinnati Soc. Nat. Hist., 5, 1882, p. 163, pi. 6, 17, pi. 7, figs. 4, 4a; Geol. Surv. Illinois, 8, 1890, fig. 6b (p. 317). Escharopora maculata Ulrich, Geol. Minnesota, 3, 1893, p. 167. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Cotypes. Cat. No. 43726, U.S.N.M. 500 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Escharopora pavonia (D'Orbigny). Ptilodictya pavonia D'Orbigny, Prodr. de Pal., 1, 1849, p. 22. Ulrich, Jour. Cin- cinnati Soc. Nat. Hist., 5, 1882, p. 163, pi. 7, figs. 3, 3d. Chsetetes pavonia Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 267, pi. 19, figs. 4, 4a. Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 116. Quenstedt, Rcehren-und Sternkorallen,1881, p. 79, pi. 146, figs. 21-25. Monticulipora pavonia Milne-Edwards, Hist. Nat. des. Corall., 3, 1860, p. 276. James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 18. James, ibid., 18, 1895, p. 70. Monticulipora (Monotrypa) pavonia Nicholson, Genus Monticulipora, 1881, p. 195, fig. 41, pi. 6, figs. 3, 3a, Monotrypa pavonia Nicholson in Steinmann, Neues Jahrb. Min., Geol. Pal., 1, 1882, pi. 4, fig. 7. Nicholsonia pavonia Waagen and Wenzel, Pal. Indica, 13th ser., 1886, p. 874. Heterodictya pavonia Ulrich, Catal. Foss. Cincinnati Group, 1880, p. 10. Escharopora pavonia Ulrich, Geol. Minnesota, 3, 1893, p. 167. Nickles and Bassler, Bull. II. S. Geol. Surv., 173, 1900, p. 240. Bassler, Proc. II. S. Nat. Mus., 26, 1903, p. 571, pi. 20, figs. 3, 4; ibid., 30, 1906, p. 37. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 156. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 832, pi. 16, fig. 6; pi. 29, fig. 6. Cyclopora Jamesi Prout, Trans. St. Louis, Acad. Sci., 1, 1859, p. 578. Stictopora clathratula James, Catal. Foss. Cincinnati Group (not defined). Chsstetes? clathratulus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 509, pi. 30, figs. 1, Ib; Pal. Ohio, 2, 1875, p. 209, pi. 22, figs. 2, 2b; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 91, pi. 5, figs. 9, 9a. Maysville: Cincinnati, Ohio, and vicinity (Fairmount) ; Central Tennessee (Leipers). Plesiotype. $**,. No. 43725, U.S.N.M. (Ulrich). Observation. Boule and Thevenin have refigured D'Orbigny's so-called types of this species, but unfortunately chose a specimen of Peronopora decipiens for this purpose. D'Orbigny's original description and Edwards and Haime's figures leave no doubt that the author of this species had this abundant Escharopora in mind. Escharopora ponderosa (Ulrich). Ptilodictya ponderosa Ulrich, Amer. Geol., 1, 1888, p. 308. Trenton (Upper): Covington, Kentucky. Escharopora ramosa (Ulrich). Ptilodictya ramosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1888, p. 164, pi. 7, figs. 5, 5a. Escharopora ramosa Ulrich, Geol. Minnesota, 3, 1893, p. 167. Stones River (Lebanon): Lebanon, Tennessee. HolotypeQ&t. No. 43727, U.S.N.M. Escharopora recta Hall. Escharopora recta Hall, Pal. New York, 1, 1847, p. 73, pi. 26, figs, la-g. cock, Geol. Vermont, 1, 1861, p. 290, fig. 188. Ptilodictya recta Emmons, Amer. Geology, 1, pt. 2, 1855, p. 205, pi. 7, figs, la-d. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 158, fig. 120a. Cham- berlin, Geol. Wisconsin, 1, 1883, p. 153, fig. Lesley, Geol. Surv. Pennsylva- nia, Rep. P 4, p. 828, figs. Trenton: Middleville and Jacksonburg, New York; Canada and Minnesota. ESCHAROPORA RECTA Quenstedt. See Escharopora falciformis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 501 Escharopora recta nodosa Hall. Escharopora recta var. nodosa Hall, Pal. New York, 1, 1847, p. 73, pi. 26, fig. 2. Trenton: Middleville and Jacksonburg, New York. ESCHAROPORA SILURIANA Weller. See Diplostenopora siluriana. Escharopora subrecta (Ulrich). Ptilodictya subrecta Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 63. Escharopora subrecta Ulrich, Geol. Minnesota, 3, 1893, p. 168, pi. 12, figs. 5-29. Grabau and Shimer, N. A. Index Fossils, 1, p. 156, fig. 208f. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 116, 117, fig. 44; Zittel-Eastman Textb. Pal., 1913, p. 344, fig. 504b. Ptilodictya (Escharopora) subrecta Sardeson, Jour. Geol., 9, 1901, p. 159, pi. B, fig. 10. Black River (Decorah) : Minneapolis, etc., Minnesota; Decorah, Iowa; and Beloit, Wisconsin; Lake Nipissing, Ontario. Ordovician (Wassalem) : Uxnorm, Esthonia, Russia. Cotypes Cat. Nos. 43818, 43819, U.S.N.M. ETAGRAPTUS Ruedemann. See Tetragraptus subgenus Etagraptus. ETHMOPHYLLUM MINGANENSIS Walcott. See Archaeoscyphia minganensis. EUCALYPTOCRINITES Goldfuss. See Eucalyptocrinus Goldfuss. EUCALYPTOCRINITES CONICUS Troost. See Eucalyptocrinus milliganse. EUCALYPTOCRINITES CRENATUS Troost. See Eucalyptocrinus ventricosus. EUCALYPTOCRINITES PLORIDUS Troost. See Eucalyptocrinus milliganae. EUCALYPTOCRINITES L^EVIS Troost. See Eucalyptocrinus phillipsi. EUCALYPTOCRINITES TENNESSEE Troost. See Eucalyptocrinus ovalis. EUCALYPTOCRINUS Goldfuss. Genotype: E. rosaceus Goldfuss. Eucalyptocrinites Goldfuss, Petrefacta, 1826, p. 214, 2d ed., pt. 1, 1862, p. 199; Agg. Mem. Soc. Sci. Nat. Neuch., 1, 1835, p. 197; Nova Acta Physico Med., Acad. Caes. Leop.-Carol., 19, 1839, p. 335. Miiller, Berlin Acad. Wiss., 1841, p. 210. Roemer, Rhein. Ubergangsgeb., 1843, p. 64. D'Orbigny, Prodrome Pal., 1, 1850, p. 45. Eucalyptocrinus Agassiz, Ann. Nat. Hist., 1, 1838, p. 447. Hall, Pal. New York, 2, 1852, p. 207. Quenstedt, Handb. Petref., 1852, p. 624. McCoy, British Pal. Rocks and Fossils, 1854, p. 57. Roemer, Leth, Geog. (Ausg. 3), 1855, p> 257. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 306. Bronn, Klass. Thierr. (Actin.), 1860, pi. 27. Dujardin and Hupe, Hist. Nat. Zooph. Echin., 1862, p. 115. Allman, Trans. Royal Soc. Edinburgh, 23, 1864, p. 249, text. fig. 5. Hall, 15th Rep. New York State Cab. Nat. Hist., 1865, p. 32. Schultze, Mon. Echin. Eifel. Kalk., 1866, p. 90. Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), 1868, p. 321, fig. 2; rev. ed. for 1868, 1870, p. 363, figs. 1-2. Angelin, Icon. Crinoid., 1878, p. 16. Hall, 28th Rep. New York State Cab. Nat. Hist., 2d ed., 1879, pis. 16-19. Wetherby, Jour. Cincinnati Soc. Nat. Hist., 1879 (Apr.), No. 5, p. 7. Zittel, Handb. Pal., 1, 1879, p. 379. Etheridge and Carpenter, Ann. Mag. Nat. Hist,, 5th ser., 7, 1881, p. 296. Quenstedt, Handb. Petref act., 1885, p. 963. -Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, p. 349 (Rev. Pal., pt. 3, sec. 1, p. 127). Miller, N. A. Geol. Pal., 1889, p. 243; Amcr. Geol., 6, 1890, p. 502 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. EUCALYPTOCRINUS Continued. 347. Bather, Treatise on Zool., 3, Echinoderma, London, 1900, p. 164. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 102, fig. 46. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 148. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 157; Bull. New York State Mus., 45, 1901, p. 157. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 45. Zittel, Grund- ziige Pal., 1, 1910, p. 164. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 557. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 192. Hypanthocrinites Phillips, in Murchison's Sil. Syst., 1839, p. 672, pi. 17, fig. 3. Hypanthocrinus Hall, Pal. New York, 2, 1852, p. 178. Salter, Cat. Camb. Sil. Foss., 1873, p. 119. Angelin, Icon. Crin., 1878, p. 17. Zittel, Handb. Pal., 1, 1879, p. 380. Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 141. EUCALYPTOCRINUS ARMOSUS McChesney. See Siphonocrinus armosus. Eucalyptocrinus asper Weller. Eucalyptocrinus asper Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1. 1900, p. 110, pi. 5, figs. 4-7. Niagaran (Racine) : Bridgeport and Hawthorne, Illinois. Eucalyptocrinus caelatus (Hall). Hypanthocrinites cgelatus Hall, Geol. New York, 4, 1843, p. 113, fig. 1; tab. 18, fig. 1. Eucalyptocrinus cselatus D'Orbigny, Prodr. de Pal., 1, 1849, p. 45 (gen. ref.). Hall, Pal. New York, 2, 1852, p. 210, pi. 47, figs. 4a-e. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 11, fig. 12. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 228, fig. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 336, pi. 83, figs. 5-7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 559. Eucalyptocrinus papulosus Hall, Pal. New York, 2, 1852, p. 211, pi. 47, figs. 5a,b. Clinton (Rochester): Lockport, Rochester, etc., New York. EUCALYPTOCRINUS OELATUS Hall (1882). See Eucalyptocrinus elrodi and E. ventri- cosus. Eucalyptocrinus caelatus levis Grabau and Shimer. Hypanthocrinites decorus Hall (not Phillips), Nat. Hist. New York, Geol., 4, 1843, p. 133, fig. 2, 3; p. 144; tab. ill. 18, fig. 2. Hypanthocrinus decorus Marcou, Geol. Map United States and British Prov., etc., 1853, p. 27, pi. 2, fig. 8. Eucalyptocrinus decorus Hall, Pal. New York, 2, 1852, p. 207, pi. 47, fig. 1, 2a-h, 3a-d; p. 352, pi. 85, fig. 7. Jones, Geol. Surv. Canada, dec. 3, 1858, p. 23, fig. 3. Emmons, Manual Geol., 1860, p. 110, fig. 100. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 7, fig. 6. Lesley, Geol. Surv. Penn- sylvania, Rep. P 4, 1889, p. 229, figs. Grabau, Bull. Buffalo Soc. Nat. Sci., 7. 1901, p. 157, fig. 53; Bull. New York State Mus., 45, 1901, pp. 157, 158, fig. 53. Eucalyptocrinus ccelatus var. levis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 559, figs. 1893 and 1894. Clinton (Rochester): Lockport and Rochester, New York; Ontario. EUCALYPTOCRINUS CHICAGOENSIS Winchell and Marcy. See Eucalyptocrinus crassus. EUCALYPTOCRINUS CONICUS Shumard. See Eucalyptocrinus milliganse. EUCALYPTOCRINUS CONSTRICTUS Hall. See Eucalyptocrinus crassus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 503 EUCALYPTOCRINUS CORNUTU8 Wachsmuth and Springer. See Callicrinus cornutus. EUCALYPTOCRINUS CORNUTUS var. EXCAVATUS Hall. See Callicrinus cornutus. Eucalyptocrinus crassus Hall. Eucalyptocrinus crassus Hall, Trans. Albany Inst., 4, 1863, p. 197. Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 129, pi. 6, fig. 11. Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed. for 1875, 1877, pi. 17, figs. 1-11; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5; pi. 21, fig. 6; pi. 31, fig. 5; mus. ed., 1879, p. 141, pi. 17, figs. 1-11; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5. Wetherby, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, pi. 8, figs. 5-8; p. 7 footnote. White, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1880, p. 495, pi. 3, fig. 1. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 272, pi. 17, figs. 1-11; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5. Chamberlin, Geol. Wisconsin, 1, 1883, p. 189, fig. Miller, N. A. Geol. Pal., 1889, p. 244, fig. 302. Wachs- muth and Springer, Mem. Mus. Comp. Zool. Harvard, 2^), 1897, p. 342, pi. 81, figs. 1-6, 14, 15. Weller, Bull. Chicago Acad. of Sci., 4, 1900, p. 105, pi. 5, figs. 1, 2; p. 25, text fig. 6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 559, fig. 1895. Eucalyptocrinus constrictus Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 273, pi. 15, fig. 1; Trans. Albany Inst., 10, 1883, p. 66. Eucalyptocrinus chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 90, fig. Eucalyptocrinus sp. undet. Worthen, Geol. Surv. Illinois, 6, 1875, pi. 24, figs. 2, 2a. Niagaran: Waldron, etc., Indiana; Newsom, Tennessee (Waldron); Chicago, Illinois (Racine). EUCALYPTOCRINUS CRASSUS Hall, 1867. See Eucalyptocrinus nodulosus. EUCALYPTOCRINUS DECORUS of American authors. See Eucalytocrinus cselatus laevis. Eucalyptocrinus depressus Miller. Eucalyptocrinus depressus Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 232, pi. 7, figs. 1-lb. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 114, pi. 7, figs. 5-7. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 349, pi. 83, figs. 3, 4a, 4b. Niagaran (Racine): Cicero and Bridgeport, near Chicago, Illinois. Eucalyptocrinus egani (Miller). Eucalyptocrinus (Hypanthocrinus) egani Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 140, pi. 4, figs. 1-lc. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 108, pi. 7, fig. 4. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 352, pi. 82, figs. 11, 12. Niagaran (Racine) : Near Chicago, Illinois. Eucalyptocrinus ellipticus Miller. Eucalyptocrinus ellipticus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 648, pi. 7, fig. 4 (adv. sheets, 1891, p. 38). Niagaran (Waldron) : Hartsville, Indiana. Eucalyptocrinus elrodi Miller. Eucalyptocrinus elrodi Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 650, pi. 7, figs. 9, 10 (adv. sheets, 1891, p. 40); N. A. Geol. Pal., 2d App., 1897, p. 745, figs. 1351, 1352. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 339, pi. 81, fig. 7a, 8-13. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 559, 'fig. 1896. 504 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eucalyptocrinus elrodi Continued. Eucalyptocrinus caelatus Hall, Trans, Alb. Inst., 4, 1863, p. 226; 20th Rep. New York StatefcCab. Nat. Hist, (extras, 1865), 1868, p. 321, fig. 1; p. 329; rev. ed., 1870, p. 368; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi. 16, figs. 1-10; pi. 19, figs. 1, 3, 6, 7; mus. ed., 1879, p. 142, pi. 16, figs. 1-10; pi. 19, figs. 1, 3; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 274, pi. 15, fig. 2; pi. 16, figs. 1-10; pi. 19, figs. 1, 3. Eucalyptocrinus subglobosus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 647, pi. 7, fig. 3 (adv. sheets, 1891, p. 37); N. A. Geol. Pal., 2d App., 1897, p. 745, fig. 1354. Niagaran (Waldron): Hartsville and Waldron, Indiana; Newsom, Tennessee. Eucalyptocrinus extensus (Troost). Eucalyptocrinites extensus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amq. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. mid.). Eucalyptocrinus extensus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 49, pi. 13, figs. 9, 10. Niagaran (P>rownsport) : Decatur County, Tennessee. Holotype.C&t. No. 39961, U.S.N.M. Eucalyptocrinus gibbosus (Troost). Eucalyptocrinites gibbosus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.). Eucalyptocrinus gibbosus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 54, pi. 10, figs. 3, 4. Niagaran (Brownsport) : Decatur County, Tennessee. Holotype.C&t. No. 39959, U.S.N.M. Eucalyptocrinus goldfussi (Troost). Eucalyptocrinites Goldfussi Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.). Eucalyptocrinus goldfussi Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 52, pi. 15, figs. 5, 6. Niagaran (Brownsport) : Decatur County, Tennessee. Holotype.Ca,t. No. 39953, U.S.N.M. EUCALYPTOCRINUS GORBYI Miller. See Eucalyptocrinus magnus. Eucalyptocrinus inconspectus Ringueberg. Eucalyptocrinus inconspectus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 148, pi. 3, fig. 5. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 346, pi. 83, fig. 1, 2. Niagaran (Lockport) : Lockport, New York. Eucalyptocrinus inornatus Weller. Eucalyptocrinus inornatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 15, pi. 6, figs. 3, 4. Niagaran (Racine): Bridgeport and Hawthorne, Illinois. EUCALYPTOCRINUS LAEVIS Shumard. See Eucalyptocrinus phillipsi. Eucalyptocrinus lindahil Wachsmuth and Springer. Eucalyptocrinus lindahli Wachsmuth and Springer, Amer Geol., 10, 1892, p. 139; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 347, pi. 82, fig. 9. Foerste, Jour. Geol., 11, 1903, p. 712. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 47, pi. 12, figs. 5, 6. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 505 Eucalyptocrinus I i ml ah I i Continued. Eucalyptocrinus wortheni Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3, 1893, p. 53, pi. 4, fig. 2. Eucalyptocrinites splendidus Troost (not Hall and Whitfield), Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419 (nom. nud.); Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.). Niagaran (Brownsport): Wayne County, Tennessee. Plesiotype.Czt. No. 39962, U.S.N.M. (Troost's type of E. splendidus). Eucalyptocrinus magnus Worthen. Eucalyptocrinus magnus Worthen, Geol. Surv. Illinois, 6, 1875, p. 501, pi. 25, fig. 3. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 348, pi. 82, figs. 7, 8. Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 116, pi. 6, fig. 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 560. Eucalyptocrinus gorbyi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 649, pi. 7, figs. 5, 6 (adv. sheets, 1891, p. 39); N. A. Geol. Pal., 2d App., 1897, p. 745, fig. 1353. Niagaran: Wayne County and Newsom, Tennessee (Waldron); Hawthorne, Illinois (Racine). Eucalyptocrinus milllganse Miller and Gurley. Eucalyptocrinites conicus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.). Eucalyptocrinus conicus Shumard, Trans. Acad. Sci. St. Louis, 2, No. 2, 1866, p. 370. Eucalyptocrinites floridus Troost, MS., 1850. Eucalyptocrinus milliganse Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 10, 1896, p. 88, pi. 5, figs. 4-6. Eucalyptocrinus milligani Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 558, fig. 1892. Wood, Bull., U. S. Nat. Mus., 64, 1909, p. 50, pi. 5, fig. 13. Niagaran (Brownsport) : Decatur County, Tennessee. Plesiotypes Cat. Nos. 39957, 39958, U.S.N.M. (Troost's type of E. conicus and E. floridus). Eucalyptocrinus muralis Ringueberg. Eucalyptocrinus muralis Ringueberg, Annals New York Acad. Sci., 5, 1890, p. 305, pi. 3, fig. 3. Niagaran (Lockport-Gasport member) : Lockport, New York. Eucalyptocrinus nashvillsB (Troost). Eucalyptocrinites Nashvillae Troost, Amer. Jour. Sci Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (uom. nud.). Eucalyptocrinus nashvillse Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 53, pi. 15, figs. 7, 8. Niagaran (Brownsport): Decatur County, Tennessee. Holotype.Csit. No. 39955, U.S.N.M. Eucalyptocrinus nodulosus Weller. Eucalyptocrinus nodulosus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 109, pi. 7, figs. 1-3. Eucalyptocrinus crassus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 323, pi. 11, fig. 2; rev. ed., 1870, p. 365, pi. 11, fig. 2. Niagaran (Racine): Bridgeport and Romeo, Illinois. 506 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eucalyptocrinus obconicus Hall. Eucalyptocrinus obconicus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867 (extras, 1865), p. 323, pi. 11 (2), fig. 1; rev. ed. 1870, p. 365, pi. 11, fig. 1. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 353, pi. 83, fig. 13. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 109, pi. 7, fig. 8. Slocom, Field Col. Mus., 2, Geol. Series, 1908, p. 301, pi. 86, figs. 1, 2. Niagaran (Racine): Racine, Wisconsin; Chicago, Illinois. Eucalyptocrinus ornatus Hall. Eucalyptocrinus ornatus Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 20. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 91. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1865), p. 329, pi. 11, figs. 4. 5; rev. ed., 1870, p. 366, pi. 11, figs. 4, 5. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. W T achsmuth and Springer, Mem. Mus. Comp. Zool. Har- vard, 20, 1897, p. 340, pi. 82, fig. 10. Weller, Bull. Chicago Acad. Sci., 4, 1900, p. Ill, pi. 6, figs. 5, 6. Niagaran (Racine): Racine, Wisconsin; Bridgeport and Romeo, Illinois. Eucalyptocrinus ovalis Hall. Eucalyptocrinites ovalis Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.). Eucalyptocrinus ovatus Hall (in error for E. ovalis), 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 17, figs. 11, 12; mus. ed., 1879, p. 143, pi. 17, figs. 12, 13. Eucalyptocrinus ovalis Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Res., 1882, p. 275, pi. 17, figs. 12, 13. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 344, pi. 82, figs. 1-6. Grabau, Amer. Jour. Sci., 16, 1903, p. 299. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 48, pi. 11, fig. 3. Eucalyptocrinites Tennessee Troost, Amer. Jour. Sci. Arts., 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.). Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Niagaran: Decatur and Perry Counties, Tennessee (Brownsport) ; Waldron and Hartsville, Indiana; Newsom, Tennessee (Waldron). Plesiotypes Cat. No. 39952, U.S.N.M (Troost's type of E. ovalis). EUCALYPTOCRINUS OVATUS Hall. See Eucalyptocrinus ovalis. EUCALYPTOCRINUS PAPULOSUS Hall. See Eucalyptocrinus cselatus. Eucalyptocrinus phillipsi (Troost). Eucalyptocrinites laevis Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.) Eucalyptocrinus laevis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Eucalyptocrinites Phillipsii Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.). Eucalyptocrinus phillipsi Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 51, pi. 10, figs. 9, 10; pi. 13, figs. 2,3,4. Niagaran (Brownsport): Decatur County, Tennessee. Holotype and plesiotype.Czt. Nos. 39964, 39966, U.S.N.M. (Troost's types of E. laevis and E. phillipsi). Eucalyptocrinus proboscidalis Miller. Eucalyptocrinus proboscidalis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 224, pi. 9, fig. 2. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 352, pi. 82, fig. 14. Niagaran (Guelph) : Pontiac, Ohio. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 507 EUCALYPTOCRINUS RAMiFER Roomer. See Callicrinus ramifer. Eucalyptocrinus rotundus Miller. Eucalyptocrinus rotundus Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 82, pi. 3, figs. 4, 4b. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Har- vard, 20, 1897, p. 350. Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4, pt. 1, 1900, p, 113, pi. 5, fig. 3. Niagaran (Racine) : Near Chicago, Illinois. Eucalyptocrinus splendidus Hall and Whitfield. Eucalyptocrinus splendidus Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 128, pi. 6, fig. 12. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 350. Niagaran (Guelph): Springfield, Ohio. EUCALYPTOCRINUS SPLENDIDUS Troost. See Eucalyptocrinus lindahli. Eucalyptocrinus springer! Foerste. Eucalyptocrinus springeri Foerste, Bull. Sci. Lab. Denistm Univ., 14, 1909, p. 99, pi. 4, fig. 73. Niagaran (Waldron): Newsom, Tennessee. EUCALYPTOCRINUS SUBGLOBOSUS Miller. See Eucalyptocrinus elrodi. EUCALYPTOCRINUS TENNESSEE Shumard. See Eucalyptocrinus ovalis. Eucalyptocrinus tuberculatus Miller and Dyer. Eucalyptocrinus tuberculatus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 36, pi. 2, figs. 9, 9a. Miller, N. A. Geol. Pal., 1889, p. 244, fig. 303. Wachsmuth and Springer, Mem. Mus. Zool. Harvard, 20, 1897, p. 337, pi. 83, figs. 8-10. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 560. Niagaran (Waldron): Waldron and Harteville, Indiana; Newsom, Tennessee. Eucalyptocrinus turbinatus Miller. Eucalyptocrinus turbinatus Miller, Cincinnati Soc. Nat. Hist., 5, 1882, p. 82, pi. 3, figs. 5, 5a. .Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 351, pi. 82, fig. 13. Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4, pt. 1, 1900, p. 107, pi. 6, figs. 1, 2. Niagaran (Racine): Near Chicago, Illinois. Eticalyptocrinus ventricosus Wachsmuth and Springer. Eucalyptocrinus ventricosus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 341, pi. 83, figs. 11, 12. Foerste, Jour. Geol., 11, 1903, p. 712. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 54. Eucalyptocrinus caelatus Roemer (not Hall, 1843), Sil. Fauna West. Tennessee, Breslau, 1860, p. 48, pi. 4, figs. 3a-e. Eucalyptocrinites crenatus Troost MS., 1850. Niagaran (Brownsport) : Decatur County, Tennessee. Plesiotype. Cat. No. 39956 U.S.N.M. (Troost's type of E. crenatus). EUCALYPTOCRINUS WORTHENI Miller and Gurley. See Eucalyptocrinus lindahli. EUCHASMA Billings. Genotype: Conocardium blumenbachi Billings. Euchasma Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 360. Euchasma blumenbachi (Billings). Conocardium Blumenbachii Billings, Canadian Nat. Geol., 4, 1859, p. 350; Geol. Canada, Geol. Surv. Canada, 1863, p. 113, fig. 22a, b. 508 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Euchasma blumenbachi Continued. Euchasma Blumenbachia Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, pp. 220, 361, fig. 348. Canadian: Mingan Islands, Canada; Port aux Choix, Table Head, and Cape Norman, Newfoundland (Quebec G. H.). EUCHEIROCRINUS Meek and Worthen. Genotype: Cheirocrinus chrysalis Hall. Eucheirocrinus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1869, p. 73; Geol. Surv. Illinois, 5, 1873, pp. 443, 502. Bather, Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, pp. 21, 61, fig. 13b; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 148, figs. 61, 62. Wachsmuth, Zittel-East- man Textb. Pal., 1, 1900, p. 154. Springer, ibid., 2d ed., 1913, p. 213. Cheirocrinus Hall (not Eichwald), 13th Rep. New York State Cab. Nat. Hist., 1860, p. 122. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 358. Meek and Worthen, Geol. Surv. Illinois, 5, 1873, p. 443. Calceocrinus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 562. Miller, N. A. Geol. Pal., 1889, p. 230; 2d App., 1897, p. 740. Proclivocrinus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 396, pi. 11, figs. 2, 4. Bather, Ann. Mag. Nat. Hist., 6th Ser., 5, 1890, p. 332, pi. 14, fig. 10; Treatise on Zool. (Lankester), pt. 3, 1900, p. 148. (Genotype: Calceo- crinus radiculus Ringueberg.) Eucheirocrinus chrysalis (Hall). Cheirocrinus chrysalis Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 123, figs. 1-5. Calceocrinus chrysalis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 358. Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 147, fig. 2; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 281, fig. 2. Proclivocrinus chrysalis Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 399, pi. 10, figs. 7, 13. Cremacrinus chrysalis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, pp. Ill, 113 (gen. ref.). Clinton (Rochester) : Lockport, New York. Eucheirocrinus radiculus (Ringueberg). Calceocrinus radiculus Ringueberg, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 120, pi. 5, figs. 3, 3a. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 503. Cremacrinus radiculus Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Sun-. Minnesota, 1886, pp. Ill, 113 (gen. ref.). Proclivocrinus radiculus Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 397, pi. 10, fig. 6. Clinton (Rochester): Lockport, New York. Observation. Probably the same as E. chrysalis (Hall). EUCONIA Ulrich. Genotypes: Pleurotomaria etna and P. ramsayi Billings. Euconia Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 953. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 642. Euconia ainphitrite (Billings). Pleurotomaria Amphitrite Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 32. (Adv. sheets, 1862.) Euconia amphitrite Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.). Raymond, Ann. Carnegie Mus., 4, 1908, p. 216. Chazyan (Mingan): South Point of Large Island, Mingan Islands, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 509 Euconla beekmanensls (Whitfield). Pleurotomaria Beekmanensis Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 53, pi. 8, figs. 8-11. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 704, figs. Koken, Neues Jahrb. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 478. Euconia beekmanensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.). Canadian (Beekmantown) : Beekmantown, New York. Euconia etna (Billings). Pleurotomaria Etna Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 226, figs. 210, a, b. Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 316, pi. 24, figs. 12, 13. Seely, Vermont State Geol., Rep. 7, 1910, pi. 62, figs. 12, 13. Euconia etna Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.). Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642, fig. 873. Canadian (Quebec G, H): Cape Norman and Table Head, Newfoundland. Euconia? pervetusta (Conrad). Cyclostoma? pervetusta Conrad, Ann. Rep. New York State Geol. Surv., 1838, p. 113; ibid., 1839, p. 65. Pleurotomaria pervetusta Hall, Rep. Geol. 4th Dist., New York, 1843, p. 48, figs. 1, 2. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 300, figs. 1, 2. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 5, figs. 1, 2. Hall, Pal. New York, 2, 1852, p. 12, pi. 4 (bis), figs. 3a-d. Grabau, Bull New York State Mus., 45, 1901, p. 213, fig. 143; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 213, fig. 143. Euomphalus pervetustus Hall, Geol. New York, 4, 1843, p. 48, figs. 1, 2; tab. ill. 2, figs. 1, 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 231. Straparollus pervetustus D'Orbigny, Prodr. de Pal., 1, 1849, p. 30 (gen. ref.). Cyclonema pervetusta Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, pt. 2, 1899, p. 162 (gen. ref.). Euconia(?) pervetusta Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642, fig. 874. Upper Medinan: Medina and Lockport, New York. Euconia ramsayi (Billings). Pleurotomaria Ramsayi Billings, Canadian Nat. Geol., 4, 1859, p. 351, figs. 3, 4; Geol. Canada, Geol. Surv. Canada, 1863, p. 117, figs. 26a, b. Miller, N. A. Geol. Pal., 1889, p. 422, fig. 701. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 714, figs. Euconia ramsayi Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.). Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 642. Canadian (Romaine): Mingan Islands, Canada. EUCRINUS Angelin. See Dimerocrinus Phillips. EUGASTER Hall. See Eugasterella Schuchert. EUGASTERELLA Schuchert. Genotype: Eugaster logani Hall. Eugaster Hall (not Seville, 1839), 20th Rep. New York State Cab. Hist., 1868, p. 290; rev. ed., 1870, p. 332. Zittel, Handb. Pal., 1, 1879, p. 444. Stiirtz, Neues Jahrb. Min., Geol. Pal., 2, 1886, p. 151; Palaeontographica, 32, 1886, pp. 78, 83. Miller, N. A. Geol. Pal., 1889, p. 244. Stiirtz, Verh. naturh. Ver. preuss. Rheinl., etc., 1893, p. 20. Gregory, Proc. Zool. Soc. London, 1897, p. 1035. Eugasterella Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 19; Bull. U. S. Nat. Mus., 88, 1915, p. 237. 510 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eugasterella conclnna (Ringueberg). Eugaster concinnus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 8, pi. 1, fig. 3. Eugasterella(??) concinna Schuchert, in Freeh, Foss. Cat. 1, Anim., pt. 3, 1914, p. 19; Bull. U. S. Nat. Mus., 88, 1915. p. 239. Clinton (Rochester) : Lockport, New York. EUGYRICHNITES Ami. Genotype: E. minutus Ami. Eugyrichnites Ami, Summary Rep. Geol. Surv. Canada, for 1904, 1905, p. 291. Eugyrichnites minutus Ami. Eugyrichnites minutus Ami, Summary Rep. Geol. Surv. Canada for 1904, 1905, p. 291. Horizon uncertain: Tapley's Mill, near Woodstock, New Brunswick. EUNEMA Salter. See Trochonema subgenus Eunema. EUNEMA HISTORICUM Hudson. See Gyronema historicum. EUNEMA LEPTONOTUM Raymond. See Gyronema leptonotum. EUNEMA? PAGODA Salter. See Ectomaria pagoda. EUNEMA PRISCA Billings. See Ectomaria prisca. EUNICITES Ehlers. Genotype: E. avitus Ehlers. Eunicites Ehlers, Palseontographica, 17, 1868, p. 147. Zittel, Handb. Pal., 1, 1880, p. 565. Miller, N. A. Geol. Pal., 1889, p. 518 Grabau and Shimer, N. A. Index Fossils, 1910, 2, p. 241. Eunicites chiromorphus Hinde. Eunicites chiromorphus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 381, pi. 20, fig. 10. Upper Medinan (Cataract): Toronto, Ontario. Eunicites clintonensis Hinde. Eunicites clintonensis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 381, pi. 19, fig. 21. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig. 1532a. Upper Medinan (Cataract): Toronto, Ontario. Eunicites conflnis Foerste. Eunicites confinis Foerste, Amer. Geol., 2, 1888, p. 418, fig. 6; Geol. Surv. Ohio, Pal., 7, 1893, p. 517, fig. 6. Richmond (Elkhorn): Todds Fork, Clinton County, Ohio. Eunicites contortus Hinde. Eunicites contortus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 375, pi. 18, fig. 4. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1530d. Cincinnatian (Pulaski): Toronto, Ontario. Eunicites coronatus Hinde. Eunicites coronatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 381, pi. 20, fig. 9. Upper Medinan (Cataract): Toronto, Ontario. EUNICITES CRISTATUS Miller. See Arabellites cristatus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 511 Eunlcltes? dlgitatus Hinde. Eunicites? digitatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 376, pi. 19, fig. 3. Cincinnatian (Pulaski): Toronto, Ontario. Eunicites falcatus Foerste. Eunicites falcatus Foerste, Amer. Geol., 2, 1888, p. 418, fig. 5; Geol. Surv. Ohio, Pal., 7, 1893, p. 517, fig. 5. "Richmond (Elkhorn): Todds Fork, Clinton County, Ohio. Eunicites gracilis Hinde. Eunicites gracilis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 376, pi. 19, fig. 3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig. 1528c. Cincinnatian (Pulaski): Toronto, Ontario. Eunicites paululus Foerste. Eunicites paululus Foerste, Amer. Geol., 2, 1888, p. 418, fig. 7; Geol. Surv. Ohio, Pal., 7, 1893, p. 517, fig. 7. Richmond (Elkhorn): Todds Fork, Clinton County, Ohio. Eunicites major Hinde. Eunicites major Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 374, pi. 18, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1530a. (Enonites major Miller, N. A. Geol. Pal., 1889, p. 519 (gen. ref.). Cincinnatian (Pulaski): Toronto, Ontario. Eunicites perdentatus Hinde. Eunicites perdentatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 375, pi. 18, fig. 6. Lumbriconereites perdentatus Miller, N. A. Geol. Pal., 1889, p. 519 (gen. ref.). Cincinnatian (Pulaski): Toronto, Ontario. Eunicites simplex Hinde. Eunicites simplex Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 376, pi. 19, fig. 2. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig. 1528b. Cincinnatian (Pulaski): Toronto, Ontario. EUNICITES (NEREIDAVUS) VARIANS Hinde. See Nereidavus varians. EUNOA Clarke. Genotype: E. accola Clarke. Eunoa Clarke, Bull. New York State Mus., 52, 1902, p. 606. Schuchert, Zittel- Eastman Textb. Pal., 1913, p. 377. Eunoa accola Clarke. Eunoa accola Clarke, Bull. New York State Mus., 52, 1902, p. 607, pis. 5, 6. Canadian (Deepldll): Deepkill, Rensselaer County, New York. EUOMPHALQPTERUS Roemer. Genotype: Euomphalus alatus Hisinger. Euomphalopterus Roemer, Leth. geog. 1, Leth. Pal., 1876, Atlas, Expl., pi. 14, fig. 9a. Zittel, Handb. Pal., 2, 1882, p. 206. Koken, Neues Jahrb. f. Min., Geol., Pal., 6 Beilage-Band, 1889, p. 438; Neues Jahrb. f. Min., Geol., Pal., 1, 1893, p. 15; Die Leitfossilien, Leipzig, 1896, p. 102, text fig. 80. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 932. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 629. Dall, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 527, 512 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Euomphalopterus alatus americanus Kindle and Breger. Euomphalopterus alatus var. amerieanus Kindle and Breger, 28th Ann. Rep. Dept. Geol. Nat. Res. Indiana, 1904, p. 459, pi. 13, fig. 6. Euomphalopterus alatus var. Kindle and Breger, ibid., 1904, p. 461. Niagaran: Little Deer Creek, Carroll County, Indiana. Euomphalopterus alatus llmatoideus Kindle and Breger. Euomphalopterus alatus var. limatoidea Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 461, pi. 14, fig. 4. Niagaran: Delphi, Indiana. Euomphalopterus alatus obsoletus Ulrich. Euomphalopterus alatus-obsoletus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 934, figs. 5g-i. Niagaran (Waldron): Waldron, Indiana. Euomphalopterus elora (Billings). Pleurotomaria Elora Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 343, fig. 348; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 154, fig. 135 (adv. sheets 1861). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 708, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, p. 74, pi. 11, figs. 5, 6. Euomphalopterus Elora Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 331. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 630, fig. 853. Niagaran (Guelph): Elora, Ontario. Euomphalopterus halel (Hall). Pleurotomaria halei Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 34. Win- chell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 109. Hall,. 20th Rep. New York State Cab. Nat. Hist., 1868, pp. 344, 364, pi. 15 (6), figs. 13, 14 (extras, 1865); rev. ed., 1870, p. 392, pi. 15, figs. 13, 14, p. 432. White- ' aves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 73, pi. 10, figs. 2, 2a. Eotomaria halei Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 69 (gen. ref.). Trochonema halei Miller, N. A. Geol. Pal., 1889, p. 428 (gen. ref.). Euomphalopterus Halei Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 330 (gen. ref.). Niagaran: Racine, Wisconsin; Bridgeport, Illinois (Racine); Durham, Ontario; and Wisconsin (Guelph). Euomphalopterus tyrrelli Parks. Euomphalopterus tyrrelli Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 36. Niagaran (Guelph) : Severn River, Ontario. Euomphalopterus Valeria (Billings). Pleurotomaria Valeria Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 169. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 23, pi. 4, figs. 1, la; ibid., pt. 2, 1895, p. 71, pi. 11, figs. 2, 3. Lesley, Geol. Surv. Penn- sylvania, Rep. P 4, 1889, p. 721, figs. Euomphalopterus Valeria Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 4, 1906, p. 330 (gen. ref.). Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 191, pi. 28. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 630, figs. 851h, j, 852. Niagaran (Guelph): Gault, etc., Ontario; Ohio. Upper Monroan (Lucas): Salt shaft, Detroit, Michigan. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 513 Euomphalopterus yelarls Wliiteaves. Pleurotomaria velaris Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 72, pi. 11, figs. 4, 4a. Euomphalopterus velaris Whiteaveg, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 330 (gen. ref.). Pleurotomaria cf. velaris Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 193, pi. 23, figs. 1-2. Niagaran (Guelph) : Elora, Ontario. ?Upper Monroan (Anderdon): Near Amherstburg, Ontario. EUOMPHALUS McCoy. Genotype: E. pentagonalis McCoy. Euomphalus McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 34. Brown, Illust. Foss. Conch. Great Britain and Ireland, 1849, p. 81. King, Mon. Permian Foss. England, Pal. Soc., 1850, p. 211. Woodward, Man. Mollusca, pt. 1, 1851, p. 145. McCoy, British Pal. Rocks Foss., 1854, p. 297. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 153. Goldfuss, Petrefacta Germ., 2d ed., pt. 3, 1863, p. 75. Meek and Worthen, Geol. Surv. Illinois, 2, p. 158. Waagen, Mem. Geol. Surv. India, Pal. Indica, ser. 13, 1, p. 86. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 136. Koninck, Ann. d. Mus., Royal dTIist. Nat. de Belgique, 6, 1881, p. 136. Zittel, Handb. Pal., 2, 1882, p. 206. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 181. Koken, Neues Jahrb. f. Min., Geol. Pal., 6 Beilage-Band, 1889, p. 317. Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1891, p. p. 244. Koken, Die Leitfossilien, Leipzig, 1896, p. 104, fig. 86, p. 106. Pilsbry, Zittel-Eastman Textb. Pal., 1900, p. 446. Dall, ibid., 2d ed., 1913, p. 527. EUOMPHALUS (part) of authors. See Eccyliopterus Remele and Oxydiscus Koken, and Poleumita Clarke and Ruedemann. EUOMPHALUS ALATUS var. LIMATOIDEA Kindle and Breger. See Euomphalopterus alatus limatoideua. EUOMPHALUS CALCIFERUS Whitfield. See Eccyliomphalus calciferus. EUOMPHALUS CIRCINATUS "Whiteaveg. See Eccyliomphalus circinatus. Euomphalus?? circumllratus Whitfield. Euomphalus circumliratus Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 308, pi. 24, fig.;. 18-21. Seely, Vermont State Geol., Rep., 7, 1910, pi. 62, figs. 18-21. Canadian (Beekmantown): Fort Cassin, Vermont. Euomphalus expansus Conrad. Not recognized. Euomphalus expansus Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 273. Niagaran: Near Rome, New York, and Pendleton, Indiana. Euomphalus fairchildl Clarke and Ruedemann. Euomphalus fairchildi Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 75, pi. 8, figs. 3, 4. Euomphalus cf. fairchildi Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 186, pi. 16, fig. 28. Niagaran (Guelph) : Rochester, New York. ?Upper Monroan (Lucas): Detroit, Michigan* 84243 Bull. 9215 33 514 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Euomphalus galtensls Whiteaves. Euomphalus galtensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 21, pi. 3, figs. 9, 9a; ibid., pt. 2, 1895, p. 85. Niagaran (Guelph): Gait, Hespeler, and Durham, Ontario. EUOMPHALUS GYROCERAS Roemer. See Eccyliomphalus gyroceras. EUOMPHALUS HEMISPHERICUS Hall. See Diaphorostoma hemisphericum. Euomphalus inornatus (Whiteaves). Trochonema inornatum Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 19, pi. 3, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1230, fig. Euomphalus inornatus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 85, pi. 13, fig. 1. Niagaran (Guelph): Elora and Durham, Ontario. EUOMPHALUS MACLURII Troost. See Maclurites magnus. EUOMPHALUS MACROLINEATUS Whitfield. See Poleumita macrolineata. EUOMPHALUS MICHLERANUS Hall. See Eccyliopterus? michleranus. EUOMPHALUS MINNESOTENSIS Miller. See Raphistoma minnesotense. Euomphalus? minutissimus Castelnau. Euomphalus? minutissimus Castelnau, Essai Syst. Sil. 1'Amerique Septent, 1843, p. 35, pi. 11, fig. 9. Ordovician?: Trenton, New York. Observation. Not recognized. Probably internal cast of some small shell. EUOMPHALUS (STRAPAROLLUS?) MOPSUS Whitfield. See Straparollus mopsus. EUOMPHALUS PEPINENSIS Meek. See Raphistoma pepinensis. EUOMPHALUS PERKINSI Whitfield. See Eccyliomphalus perkinsi. Euomphalus pervetus (Conrad). Not recognized. Inachus pervetus Conrad, Proc. Acad. Nat. Sci., Philadelphia, 1843, p. 334. Euomphalus pervetus Miller, N. A. Geol. Pal., 1889, p. 404. Lead-bearing limestone: Mineral Point, Wisconsin. EUOMPHALUS PERVETUSTUS Hall. See Euconia? pervetusta. EUOMPHALUS POLYGYRATUS Roemer. See Polygyrata polygyratus. EUOMPHALUS (RAPHISTOMA) ROTULIFORMIS Meek. See Polygyrata rotuliformis. EUOMPHALUS (CYCLONEMA) RUG.ELINEATA Hall and Whitfield. See Poleumita rugilineata. EUOMPHALUS SANCTISAB.E Roemer. See Straparollus sanctisabse. EUOMPHALUS SINUATUS Hall. See Straparollus sinuatus. EUOMPHALUS STRONGI Whitfield. See Sinuopea strongi. EUOMPHALUS SULCATUS Hall. See Poleumita? sulcata. Euomphalus triliratus Conrad. Not recognized. Euomphalus triliratus Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 333. Trenton: Mineral Point, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 515 EUOMPHALUS (RAPHISTOMA?) TROCHISCUS Meek. See Polygyrata trochiscus. EUOMPHALUS UNIANGULATUS Hall. See Helicotoma uniangulata. EUOMPHALUS? VATICINUS Hall. See Raphistoma minneso tense. Euomphalus verneuili Castelnau. Euomphalus Verneuili Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 34, pi. 11, figs, la, b. Silurian: Northern shore of Lake Huron. Euomphalus wlnonensis Sardeson. Euomphalus winonensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 96, pi. 6, fig. 1. Ozarkian (Oneota): Near Dresbach, Winona County, and near Red Wing, Good- hue County, Minnesota; B Ian chard ville, Wisconsin. EURTCHILINA Ulrich. Genotype: E. reticulata Ulrich. Eurychilina Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 52. Vogdes, Annals New York Acad. Sci., 5, 1889, facing p. 36. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, pp. 125, 126. Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 538. Miller, N. A. Geol. Pal., 1st App., 1892, p. 707. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 658; Zittel-Eastman Textb. Pal., 1, 1900, p. 644. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1040. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348. Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. Eurychilina sequalis Ulrich. Eurychilina sequalis Ulrich. Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 129, pi. 9, figs. 5-8. Eurychilina equalis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348 figs. 1657q-s. Stones River (Ridley?): Bottom of gorge at High Bridge, Kentucky; Lebanon, Tennessee. Cotypes.C&t. No. 41639, U.S.N.M. Eurychilina billings! (Jones). Primitia billingsi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 547, pi. 21, fig. 10. Anticostian (Gun River and Jupiter River) : West of Jupiter River, Anticosti. Eurychilina bulbifera Ruedemann. Eurychilina bulbifera Ruedemann, Bull. New York State Mus., 49, 1901, p. 76, pi. 5, figs. 14-17. Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York. N Eurychilina dianthus Ruedemann. Eurychilina dianthus Ruedemann, Bull. New York State Mus., 49, 1901, p. 78, pi. 5, figs. 1, 2, 8, 9. Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York. Eurychilina frobisheri (Emerson). Primitia frobisheri Emerson, Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879, p. 581, fig. 8. Richmond: Frobisher Bay, Baffin Land. Plastotype.C&t. No. 60728, U.S.N.M. 516 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eurychilina granosa Ulrich. EurycMlina granosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 128, pi. 9, figs. 9-12. Stones River (Ridley?): Bottom of gorge at High Bridge, Kentucky. Cotypes. Cat. No. 41616, U.S.N.M. Eurychilina jersey ensis Weller. EurycMlina jersey ensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 210, pi. 13, fig. 17. Trenton: Near Iliffs Pond, New Jersey. Eurychilina latimarginata (Raymond). Primitia latimarginata Raymond, Amer. Jour. Sci., 20, 1905, p. 380. Eurychilina latimarginata Raymond, Ann. Carnegie Mus., 7, No. 2, 1911, p. 255, fig. 26. Chazyan: Chazy, Valcour Island, Crown Point, etc., New York (Day Point, Valcour); East Tennessee (Lenoir). Eurychilina longula Ulrich. Eurychilina longula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 127, pi. 9, figs. 3a, b, 4. Black River (Lowville): High Bridge, Kentucky. Cotypes. Cat. No. 41623, U.S.N.M. Eurychilina manitobensis Ulrich. Eurychilina manitobensis Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2, 1889, p. 53, pi. 9, figs. 10, 10a. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 127 (loc. occ.) Richmond (Stony Mountain): Stony. Mountain, Manitoba; Wyoming. Eurychilina obesa Ulrich. Eurychilina obesa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 129, pi. 9, fig. 13. Black River (Lowville): High Bridge, Kentucky. Holotype.Czt. No. 41624, U.S.N.M. Eurychilina obliqua Ruedemann. Eurychilina obliqua Ruedemann, Bull. New York State Mus., 49, 1901, p. 79, pi. 5, figs. 10-12. Mohawkian (Rysedorph) : Rysedorph Hill, Rensselaer County, New York. Eurychilina oculifera Weller. Eurychilina oculifera Weller, Geol. Surv. New Jersey, 3, 1903, p. 210, pi. 13, fig. 16. Trenton: Near Iliffs Pond, New Jersey. Eurychillina reticulata Ulrich. Eurychilina reticulata Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 52, pi. 9, figs. 9, 9a; Geol. Minnesota, 3, pt. 2, 1894, p. 660, pi. 44, fig. 1. Ruedemann, Bull. New York State Mus., 49, 1901, p. 76, pi. 5, fig. 3. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 298, fig. 46. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348, fig. 1657p. Bassler, Zittel- Eastman Textb. Pal., 1913, p. 738, fig. 1425g. Mohawkian: Minneapolis, St. Paul, etc., Minnesota (Black River-Decorah); Rysedorph Hill, New York (Rysedorph). Cotypes and pksiotypes.C&t. Nos. 44600, 44601, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 517 Eurychilina reticulata incurva Ulrich. Eurychilina reticulata incurva Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 661, pi. 44, fig. 2. Black River (Decorah): St. Paul, Minnesota. Holotype.Czt. No. 41599, U.S.N.M. Eurychilina? solida Ruedemann. Eurychilina? solida Reudemann, Bull. New York State Mus., 49, 1901, p. 77, pi. 5, fig. 18. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. - Eurychilina? strlatomarginata (Miller). Beyrichia striato-marginatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 233, fig. 26; N. A. Geol. Pal., 1889, p. 535, fig. 979. Eurychilina striatomarginata Ulricb, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 52; Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 130, pi. 9, fig. 14; Geol. Minnesota, 3, pt. 2, 1894, p. 659. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1046, pi. 13, fig. 9. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348, fig. 1657t. Richmond ( Whitewater-Saluda) : Osgood, etc., Indiana. Pksiotype.C&t. No. 41615, U.S.N.M. Eurychilina? subsequata Ulrich. Eurychilina? subsequata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 663, pi. 45, figs. 7-9. Black River (Decorah): St. Paul, Minnesota. HolotypeCsit. No. 41628, U.S.N.M. Eurychilina subradiata Ulrich. Eurychilina subradiata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1,1890, p. 126, pi. 9, figs, la-c, 2a-c; Geol. Minnesota, 3, pt. 2, 1894, p. 661, pi. 4, figs. 3, 4, 4a. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 299, fig. 49. Ruedemann, Bull. New York State Mus., 162, 1912, pi. 9, fig. 16. Stones River: Lebanon, Tennessee. Black River: Dixon, Illinois, etc. (Platteville) ; Minneapolis, Minnesota (Decorah). Trenton (Canajoharie) : Canajoharie, New York. Cotypes&nd pksiotypes.Ca,t. Nos. 41611, 41613, 41614, U.S.N.M. Eurychilina subradiata rensselserica Ruedemann. Eurychilina subradiata rensselasrica Ruedemann, Bull. New York State Mus., 49, 1901, p. 77, pi. 5, figs. 4-7, 13. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Eurychilina symmetrica Ulrich. Eurychilina symmetrica Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 663, pi. 44, figs. 5-7; pi. 45, figs. 4-6. Black River (Decorah): St. Paul and near Cannon Falls, Minnesota. Cotypes. Cat. No. 41386, U.S.N.M. Eurychilina ventrosa Ulrich. Eurychilina ventrosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 662, pi. 45, figs. 'l-3. Trenton (Prosser): Near Cannon Falls and Kenyon, Minnesota. Cotype. Cat. No. 41625, U.S.N.M. 518 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. EURYDICTYA Ulrich. Genotype: E. montifera Ulrich. Eurydicta Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 389, 520. (Ulrich in press), Miller, N. A. Geol. Pal., 1889, p. 301. Ulrich, Geol. Minnesota, 3, 1893, p. 138. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 527. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 48. Eurydictya calhounensls Ulrich. Eurydictya calhounensis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520, pi. 30, figs. 4-4c. Black River (Kimmswick) : Three miles north of Cap au Gres, Calhoun County, Illinois. Sections of holotype.C&t. No. 43754, U.S.N.M. Eurydictya montifera Ulrich. Eurydictya montifera Ulrich, Geol. Surv. Illinois, 8, 1890, p. 521, pi. 30, figs. 3-3d. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 80-82 (p. 528). Richmond (Fernvale) : Wilmington, Illinois. Fragment of holotype. Cat. No. 43753, U.S.N.M. Eurydictya multipora (Hall). Phsenopora multipora Hall, Foster and Whitney 's Rep. Geol. Lake Superior Land District, pt. 2, 1851, p. 206, pi. 24, figs, la, b. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 171, pi. 8, figs. 7-7b. Eurydictya multipora Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520; Geol. Minne- sota, 3, 1893, p. 139, pi. 6, 9-11; pi. 14, 9-11 (not pi. 7, 24, 29-31=Rhinidictya fidelis Ulrich). Nickles and Bassler, U. S. Geol. Surv., 173, 1900, p. 241. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 38, pi. 1, figs. 11, 12. Ptilodictya antiqua James, Paleontologist, 5, 1881, p. 37. Black River and Trenton: Escanaba River, Michigan; Burgin, Kentucky; Nash- ville, Tennessee; St. Paul, Minnesota. Plesiotypes. Cat. No. 43604, U.S.N.M. EURYDICTYA MULTIPORA (in part) Ulrich. See Rhinidictya fidelis. Eurydictya sterlingensis Ulrich. Eurydictya sterlingensis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 522, pi. 30, figs. 2, 2a. Richmond (Maquoketa): Sterling and South Elgin, Illinois. EURTMTA Ulrich. Genotype: Modiolopsis plana Hall. Eurymya Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512. Sardeson, Amer. Geol., 30, 1902, p. 39. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 517. Eurymya alata (Ulrich). Modiolopsis alata Ulrich, Amer. Geol., 5, 5, 1890, p. 280, figs. 8a-c. Eurymya alata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512 (gen. ref.). Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Cotypes.G&t. No. 46201, U.S.N.M. Eurymya plana (Hall). Modiolopsis plana Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 30; Geol Wisconsin, 1, 1862, pp. 38 and 438, fig. 6. Chamberlin, Geol. Wisconsin, 1, 1883, p. 156, fig. Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1892, p. 224, fig. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. pi. 7, figs. 12, 13 (?14, 15). Sardeson, Amer. Geol., 30, 1902, p. 40, figs. 1 BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 519 Eurymya plana Continued. Eurymya piana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512, pi. 36, figs. 27, 28. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518, figs. 696a, b. Black River (Platteville): Beloit, Janesville, Mineral Point, etc., Wisconsin; Minneapolis, St. Paul, etc., Minnesota. Plesiotypes. Cat. No. 46202, U.S.N.M. Eurymya subplana Ulrich. Eurymya subplana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 513. Trenton (Hermitage): Central Tennessee and Mercer County, Kentucky. Cotypes. Cat. No. 46203, U.S.N.M. EURYMYA? TRUNCATA Ulrich. See Modiolodon truncata. EURYMYELLA Williams. Genotype: E. shaleri Williams. Eurymyella Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 382. Eurymyella angularis Williams. Eurymyella angularis Williams, Proc. U. S. Nat. Mus.; 1912, p. 387, pi. 49, figs. 10, 11. Silurian (Eastport): East side Seward Neck, Washington County, Maine. Holotype and paratype.C&t. No. 58437, U.S.N.M. Eurymyella convexa Williams. Eurymyella convexa Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 389, pi. 50, fig." 10. Silurian (Eastport): Salt works, Eastport, Maine. Holotype. Cat. No. 58448, U.S.N.M. Eurymyella denbowensis Williams. Eurymyella denbowensis Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 390, pi. 50, figs. 11-14. Silurian (Pembroke): Denbow Point, Washington County, Maine. Holotype and paratype.G&t. No. 58449, U.S.N.M. ^ Eurymyella plana Williams. Eurymyella plana Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 388, pi. 49, fig. 14. Silurian (Eastport): East side of Seward Neck, Washington County, Maine. Holotype. Cat. No. 58439, U.S.N.M. Eurymyella recta Williams. Eurymyella recta Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 389, pi. 49, fig. 15. Silurian (Eastport): East side of Seward Neck, Washington County, Maine. Holotype. Cat. No. 58440, U.S.N.M. Eurymyella shaleri Williams. Eurymyella shaleri Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 385, pi. 49, figs. 1-4. Silurian (Eastport): Moose Island, etc., Washington County, Maine. Cotypes. Cat. Nos. 58431-58433, U.S.N.M. Eurymyella shaleri breva Williams. Eurymyella shaleri var. breva Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 386, pi. 49, figs. 5-7. Silurian (Eastport): Moose Island, etc., Washington County, Maine. Cotypes. at. No. 58434, U.S.N.M. 520 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eurymyella shalert longa Williams. Eurymyella shaleri var. longa Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 397, pi. 49, fig. 8. Silurian (Eastport): Moose Island, etc., Washington County, Maine. Holotype.~G&t. No. 58435, U.S.N.M. Eurymyella shaleri minor Williams. Eurymyella shaleri var. minor Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 387, pi. 49, fig. 9; ibid'., 45, 1913, p. 346, pi. 31, fig. 5. Silurian (Eastport): Sipps Bay, south of highway bridge, Washington County, Maine. Holotype and plesiotype. Cat. Nos. 58436, 58972, U.S.N.M. Eurymyella? slmulans Williams. Eurymyella? simulans Williams, Proc. U. S. Nat. Mus., 1912, p. 388, pi. 49, figs. 12,"l3. Silurian (Eastport): East side of Seward Neck, Washington County, Maine. Cotypes.C&t. No. 58438, U.S.N.M. EURTPTERUS Dekay. Genotype: E. remipes Dekay. Eurypterus Dekay, Annals Lyceum Pal. New York, 1, 1825, p. 375. Harlan, Medical, Physical Res., 1835, p. 297. Hibbert, Trans. Royal Soc. Edin- burgh, 13, 1836, p. 281. Conrad, 1st Ann. Rep. New York Geol. Surv., 1837, p. 182. Fischer de Waldheim, Bull. Soc. geol. France, 11, 1840, p. 368. Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422. Conrad, 5th Ann. Rep. New York Geol. Surv., 1841, p. 38. Roemer, Palseontographica, 1, 1848, pp. 192-193. McCoy, British Pal. Rocks Fossils, 1854, p. 175. Pictet, Trait^ de Pal., 2d ed., 2, 1854, p. 529. Salter, Quart. Jour. Geol. Soc. Lon- don, 12, 1856, p. 27. Nieszkowski, Archiv. f. Naturk. Liv.-Ehst-u. Kurl., 1858, 2, p. 308. Hall, Pal. New York, 3, 1859, 1861, pp. 382; 385; 392; 395; 397, figs. 1, 2; 398, fig. 3; 400, fig. 5; 403, figs. 6, 7. Woodward, Mon. British Foss. Crust., Pal. Soc., 1872, p. 132. Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 563. Alth, Abhandl. der K.-K. Geol. Reichsanstalt, 7, H&t 1, 1874, p. 54. Hall and Clarke, Pal. New York, 7, 1888, p. 49. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersb., 7 ser., 31, 5, 1883, p. 48. Zittel, Handb. Pal., 2, 1885, p. 647. Miller, N. A. Geol. Pal., 1889, p. 548. Vogdes, Annals New York Acad. Sci., 1889, p. 20, pi. 1, fig. 7. Laurie, Trans. Royal Soc. Edinburgh, 37, 1893, p. 517; Nat. Sci., 2, 1893, p. 125; ibid., 3, 1893, p. 125. Clarke, Zittel-Eastman Textb. Pal. 1, 1900, p. 674. Grabau, Bull. New York State Mus., 45, 1901, p. 228. Clarke, 54th Rep. New York State Mus., 1901, p. 83. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 228. Clarke, Bull. New York State Mus., 107, 1907, p. 304. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 405. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 155. Clarke, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 782. Onychopterus (subgenus of Eurypterus) Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 212. Clarke, Zittel-Eastman Textb. Pal., 1913, p. 782. (Genotype: Eurypterus kokomoensis Miller and Gurley). Tylopterus (subgenus of Eurypterus) Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 216. Clarke, Zittel-Eastman Textb. Pal., 1913, p. 783. (Genotype: Eurypterus boylei Whiteaves). Eurypterus (Tylopterus) boylei (Whiteaves). Eurypterus Boylei Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 42, pi. 7, fig. 3; ibid., pt. 2, 1895, p. 109 (loc. occ.) BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 521 Eurypterus (Tyloptems) boylel Continued. Tylopterus boylei Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 218, fig. 42. Niagaran (Guelph): Elora, Ontario. EURYPTERUS? CESTROTUS Clarke. See Stylonunis (Ctenopterua) cestrotus. Eurypterus chadwlcki Clarke and Ruedemann. Eurypterus chadwicki Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 413, fig. 95. Chazyan (Normanskill): Catskill, New York. EURYPTERUS CICEROPS Clarke. See Eusarcus(?) cicerops. EURYPTERUS? CLEVELANDI Walcott. See Echinognathus clevelandi. Eurypterus dekayi Hall. Eurypterus dekayi Hall, Pal. New York, 3, 1859, p. 411, pi. 82, fig. 1. Grabau. Bull. New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 409. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 181, pi. 19, fig. 2; pi. 20, fig. 1. Cayugan (Bertie): Buffalo, New York. EURYPTERUS ERIENSIS Whitfield. See Eurypterus microphthalmus. EURYPTERUS GIGANTEUS Pohlman. See Eurypterus pustulosus. Eurypterus (Onychopterus) kokomoensis (Miller and Gurley). Eurypterus kokomoensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 10, 1896, p. 90, pi. 5, fig. 1. Eurypterus (Onychopterus) kokomoensis Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 212, pi. 25, figs. 1, 2; pi. 26, fig. 2. Cayugan (Kokomo): Kokomo, Indiana. Eurypterus lacustris Harlan. Eurypterus lacustris Harlan, Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 98, pi. 5, fig. 2; Medical, Physical Res., 1835, p. 298, pi. 5, fig. 2. Hibbert, Trans. Royal Soc. Edinburgh, 13, 1836, p. 281, pi. 12, fig. 6. Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422. Fischer de Waldheim, Bull. Soc. Geol. France, 11, 1840, p. 368. Hall, Pal. New York, 3, 1859, p. 400, text fig. 5; p. 407, pi. 81, figa. 1-11; pi. 81A, fig. 1; pi. 81B, figs. 1-5; pi. 83B, fig. 3. Grabau, Bull. New York State Mus., 45, 1901, p. 229; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 229. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 408, fig. 1708. Clarke and Ruedemann, Mem. New York State Mua., 14, 1912, p. 173, pis. 9-12; pi. 13, fig. 3; figs. 35, 36. Euryptenis robustus Hall, Pal. New York, 3, 1859, p. 410, pi. 81C, fig. 1; also see corrigenda, p. 533. Grabau, Bull. New York State Mus., 45, 1901, p. 229; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 229. Grabau and Shimer, N. A. In- dex Fossils, 2, 1910, p. 408, fig. 1710. Eurypterus remipes Bronn and Roemer, Leth., 3d ed., 2, 1854, p. 666, pi. 9, fig. 1. Cayugan (Bertie): Williamsville, Buffalo, Black Rock, Erie County, and Union Springs, Cayuga County, New York; Bertie, Ontario. Eurypterus lacustris pachycheirus (Hall). Eurypterus pachycheirus Hall, Pal. New York, 3, 1859, p. 412, pi. 82, figs. 1-3. Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1881, p. 19, fig. 7. Grabau, Bull. New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230. 522 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eurypterus lacustris pachycheirus Continued. Eurypterus lacustris var. pachychtfus Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 179, pi. 12, fig. 3; pi. 19, fig. 1. Cayugan (Bertie): Buffalo and Black Rock, New York. Eurypterus maria Clarke. Eurypterus maria Clarke (part) Bull. New York State Mus., 107, 1907, p. 305, pi. 1, figs. 1, 2, 4; pi. 2, figs. 2, 4, 7; pi. 3, figs. 1-5, 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 406, figs. 1705a-c, 1713d-e. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 184, pis. 21, 22, fig. 37. Medinan (Shawangunk): Otisville, New York, and Delaware Water Gap, Penn- sylvania. EURYPTERUS MARIA (part) Clarke. See Pterygotus (Erettopterus) globiceps and Stylonurus myops. Eurypterus megalops Clarke and Ruedemann. Eurypterus megalops Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 191, pi. 83, fig. 7. Trenton (Schenectady): Near Rotterdam Junction, Schenectady County, New York. Eurypterus microphthalmus Hall. Eurypterus microphthalmus Hall, Pal. New York, 3, 1859, p. 407, pi. 80A, fig. 7. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 192, pi. 20, figs. 2-10. Eurypterus Eriensis Whitfield, Annals New York Acad. Sci., 2, 1882, p. 196. Claypole, Proc. Amer. Phil. Soc., 21, 1883, p. 239. Whitfield, Geol. Surv. Ohio, Pal., 7, 1893, p. 416, pi. 1, figs. 31, 32; Ann. New York Acad. Sci., 5, 1891, p. 515, pi. 5, figs. 31, 32. Grabau and Shimer, N. A. Index Fossils, 1, 1910, p. 407, fig. 1707. Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 208, pi. 30, figs. 31-32. Cayugan: Drift bowlder near Cazenovia; also Onondaga, Litchfield, Cherry Valley, and Manlius village, New York (top of Manlius); Put-in-Bay, Lake Erie (Put-in-Bay). EURYPTERUS MYOPS Clarke. See Stylonurus myops. EURYPTERUS PACHYCHEIRUS Hall. See Eurypterus lacustris pachycheirus. Eurypterus pittsfordensis Sarie. Eurypterus pittsfordensis Sarle, Bull. New York State Mus., 69, 1902, p. 1098, pi. 10, fig. 7; pi. 15, figs. 1-3; pis. 16-23;. pi. 24, figs. 2-5; pi. 25, figs. 2, 5, 6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 407, fig. 1706. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 196, pi. 13, figs. 4-6; pis. 14-16; pi. 17, figs. 1-6; pi. 18, figs. 3-8. Cayugan (Pittsford): Pittsford, Monroe County, New York. Eurypterus pristinus Clarke and Ruedemann. Eurypterus pristinus Clarke and Ruedemann, Mem. New York State Mus., 1912, p. 207, pi. 83, figs. 5, 6. Trenton (Schenectady): Dettbarn quarry, Schenectady, New York. Eurypterus? (Dolichopterus?) prominens Hall. Eurypterus prominens Hall, Proc. Amer. Assoc. Adv. Sci., 33, 1884, p. 420. Hall and Clarke, Pal. New York, 7, 1888, p. 157, pi. 27, figs. 3, 4. Eurypterus(?) (Dolichopterus?) prominens Clarke and Ruedemann, Mem. N York State Mus., 14, 1912, p. 200, fig. 38. Clinton sandstone: Northern part of Cayuga County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 523 Eurypterus pustulosus Hall. Eurypterus pustulosus Hall, Pal. New York, 3, 1859, p. 413, pi. 83B, fig. 1. Grabau, Bull. New York State Mus., 45, 1901, p. 229; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 229. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 201, pis. 23, 24, figs. 39^1. Eurypterus giganteus Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1883, p. 41, pi. 2, fig. 1. Pterygotus globicaudatus Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1883, p. 42, pi. 2, fig. 2. Laurie, Trans. Royal Soc. Edinburgh, 37, 1893, p. 515. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 231; Bull. New York State Mus., 45, 1901, p. 231. Cayugan (Bertie): Buffalo, New York. . No. 60051, U.S.N.M. Eurypterus ranilarva Clarke and Ruedemann. Eurypterus ranilarva Clarke and Ruedemann. Mem. New York State Mus., 14, 1912, p. 208, pi. 17, fig. 7; pi. 18, figs. 1, 2. Cayugan (Kokomo): Kokomo, Indiana. Eurypterus remipes Dekay. Eurypterus remipes Dekay, Annals Lyceum Nat. Hist. New York, 1, 1825, p. 375, pi. 29; ibid., 2, 1828, p. 273. Harlan, Trans. Geol. Soc. Pennsylvania, 1, 1832, p. 96, pi. 5, fig. 1; Amer. Mo. Mag., 3, 1834, p. 291; Medical, Physical Res., 1835, p. 297, fig. 1. Bronn, Leth. Geol., 1, 1835-1837, p. 109, fig. 1. Hibbert, Trans. Roy. Soc. Edinburgh, 13, 1836, pi. 12, fig. 7, p. 281 Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422. Fischer de Waldheim, Bull. Soc. Geol. France, 11, 1840, p. 368. Vanuxem, Nat. Hist. New York, Geol., 3, 1842, pp. 99, 100, fig. Roemer, Palaeontographica, 1, 1848, p. 190, pi. 27. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 529, pi. 46, fig. 14. Hall, Pal. New York, 3, 1859, p. 382; p. 403, figs. 6, 7; p. 404, pi. 80, figs. 1-12; pi. 80A, figs. 1-6; 11-17; pi. 83B, fig. 2; pi. 84A, figs. 1, 2. Emmons, Man. Geol., 1860, p. 41, fig. 34; p. 122, fig. 4. Chapman, Canadian Jour., n. s., 8, 1863, p. 440, fig. 227; Expos. Min. Geol. Canada, 1864, p. 191, fig. 227. Billings, Geol. Canada, Geol. Surv. Canada, 1863, pp. 958, 959, figs. 463a, b, 464. Woodward, Quart. Jour. Geol. Soc. London, 23, 1867, pi. 1, fig. 7. Meek and Worthen, Amer. Jour. Sci. Arts, 2d ser., 46, 1868, footnote p. 20, p. 546. Woodward, Mon. British Foss. Crust., Palaeontographical Soc., 1872, p. 132, fig. 40. Walcott, Bull. Mus. Comp. Zool., 8, 1881, pi. 5, fig. 7. Peach, Proc. Royal Soc. Edinburgh, 9, 1888, pi. 20, figs. 2, 2a. Miller, N. A. Geol. Pal., 1889, p. 548, fig. 1008. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 236, fig Clarke, Zittel-Eastman Textb. Pal., 1900, 1, pt. 2, p. 676, figs. 1420, 1421. Grabau, Bull. New York State Mus., 45, 1901, p. 229, pi. 18; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 229, pi. 18. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 408, fig. 1709, Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 161, pis. 2-8, figs. 33, 34. Cayugan: Waterville, Litchfield, Seneca Falls, North Buffalo, etc. (Bertie), and Seneca Falls (Rondout), New York. EURYPTERUS REMIPES Bronn and Roemer. See Eurypterus lacustris. EURYPTERUS ROBUSTUS Grabau. See Eurypterus lacustris. Eurypterus? (Dolichopterus?) stellatus Clarke and Ruedemann. Eurypterus? (Dolichopterus?) stellatus Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 211, pi. 83, figs. 1-4. Trenton (Schenectady): Schenectady, New York. 524 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. EURYSOMA Claypole. See Eusarcus Grote and Pitt. EURYSTOMITES Schroder. Genotype: Nautilus kelloggi Whitfield. Eurystomites Schroder, Pal. Abhandl. von Dames u. Kayser, Neue Folge, 1, Heft 4, Jena, 1891, p. 26. Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 441. Miller, N. A. Geol. Pal., 2d App., 1897, p. 773. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 811. Ruedemann, Bull. New York State Mus.. 90, Pal., 14, 1906, pp. 451, 456. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 68. Eurystomites accelerans Ruedemann. Eurystomites accelerans Ruedemann, Bull. New York State Mus., 90, 1906, p. 460, pi. 18, figs. 2, 3; fig. 23. Canadian (Beekmantown): Valcour, New York. Eurystomites amplectens Ruedemann. Eurystomites amplectens Ruedemann, Bull. New York State Mus., 90, 1906, p. 461, pi. 18, figs. 4-7; fig. 24. Canadian (Beekmantown): Valcour, New York. Eurystomites apollo (Billings). Lituites Apollo Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 25 (adv. sheets 1862). Eurystomites apollo Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen ref.). Canadian (Romaine): Mingan Islands, Canada. SURYSTOMTTES CHAMPLAiNENSis Schroder. See Tarphyceras champlainense. Eurystomites gibbosus Hyatt. Eurystomites gibbosum Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 443. Canadian (Quebec): Port aux Choix, Schooner Island, Newfoundland. Eurystomites linperator (Billings). Lituites imperator Billings, Geol. Vermont, 2, for 1861, 1862, p. 957; Rep. Econ. Geol., etc., Vermont, 1862, p. 229; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 23 (adv. sheets 1861). Eurystomites imperator Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.). Canadian (Beekmantown): Phillipsburg, Quebec. Eurystomites kelloggi (Whitfield). Nautilus kelloggi Whitfield (part), Bull. Amer. Mus. Nat. Hist., 1, 1886, 8, p. 328, pi. 30, fig. 1 (not pi. 31, figs. 4, 5 E. rotundus Hyatt). Eurystomites kelloggi Schroder, Pal. Abh. herausg. von Dames und Kayser, 5, Heft 4, 1891, p. 27. Hyatt, Amer. Phil. Soc. Proc., 32, 1894, p. 442, pi. 5, figs. 4, 5; figs. 21, 22. Ruedemann, Bull. New York State Mus., 90, 1906, pp. 451, 456, figs. 21, 22; pi. 17, fig. 1; pi. 18, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 69, fig. 1278. Canadian: Fort Cassin, Vermont; Valcour, New York (Beekmantown); Picketts Station, Wisconsin (Shakopee). Plesiotype.CB,t. No. 25647, U.S.N.M. Eurystomites plicatus Whiteaves. Eurystomites plicatus Whiteaves, Canadian Rec. Sci., 6, 1895, p. 396; Pal. Geol. Surv. Canada, 3, pt. 3, 1897, p. 225, figs. 15, 16; pi. 22, fig. 2. Schu- chert, Proc. U. S. Nat. Mus., 22, 1900, p. 173. Black River or Richmond: Little Black Island, Lake Winnipeg, and Baffin Land, Canada. BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 525 Eurystomites robertsonl (Hall). Lituites robertsoni Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 38. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 64, pi. 10, figs. 4-6. Eurystomites robertsoni Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.). Black River (Platteville): Beloit, Wisconsin; Rockford, Illinois. Eurystomites rotundus Hyatt. Nautilus kelloggi Whitfield (part), Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 328, pi. 31, figs. 4, 5. Seely, Vermont State Geol. Rep., 7, 1910, pi. 53, figs. 4, 5. Eurystomites rotundus Hyatt, Amer. Phil. Soc. Proc., 32, 1894, p. 443, pi. 5, figs. 21-25. Ruedemann, Bull. New York State Mus., 90 1906, p. 463. Canadian (Beekmantown) : Fort Cassin, Vermont. Coiypes.Cat. No. 25655, U.S.N.M. EURYSTOMITES UNDATUS Hyatt. See Plectoceras? undatum. EURYSTOMITES UNDATUS var. OCCIDENTALIS Clarke. See Plectoceras undatum occidentale. Eurystomites virginianus Hyatt. . Eurystomites virginiana Hyatt, Amer. Phil. Soc. Proc., 32, 1894, p. 444. Ruede- mann, Bull. New York State Mus., 90, 1906, p. 463. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 69. Canadian (Beekmantown): Near Lexington, Virginia; Fort Cassin, Vermont. Holotype.C&t. No. 9611, U.S.N.M. EUSARCUS Grote and Pitt. Genotype: E. scorpionis Grote and Pitt. Eusarcus Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, pp. 1, 2. Pohlman, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 29. Claypole, Amer. Geol., 13, 1894, p. 78, footnote. Clarke, Zittel-Eastman Textb. Pal., 1, 1900, p. 676; ibid., 2d ed., 1913, p. 783. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230; Bull. New York State Mus., 45, p. 230. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 409. Clarke and Ruedemann, Mem. New York State Mus. 14, 1912, p. 226. Eurysoma Claypole, Amer. Geol., 6, p. 258. (Genotype, E. newlini Claypole.) Carcinosoma (Eurysoma preoccupied) Claypole, Amer. Geol., 13, 1894, p. 78. Miller, N. A. Geol. Pal., 1st App. 1892, p. 706. Eusarcus(?) cicerops (Clarke). Eurypterus? cicerops Clarke, Bull. New York State Mus., 107, 1907, p. 307, pi. 5, fig. 10; pi. 5, fig. 7. Eusarcus(?) cicerops Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 253, pi. 36, figs. 2-10. Medinan (Shawangunk) : Otisville, New York. EUSARCUS GRANDIS Grote and Pitt. See Eusarcus scorpionis. Eusarcus lingulatus Clarke and Ruedemann. Eusarcus lingulatus Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 413, figs. 96, 97. Chazyan (Normanskill) : Catekill, New York. Eusarcus longiceps Clarke and Ruedemann. Eusarcus longiceps Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 257, pi. 84, figs. 1-6. Trenton (Schenectady) : Schenectady, New York. 526 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Eusarcus newlini (Claypole). Eurysoma newlini Claypole, Amer. Geol., 6, 1890, pp. 258, 260, fig. 3. Carcinosoma newlini Claypole, Amer. Geol., 6, 1890, p. 400; ibid., 13, 1894, p. 78. Eusarcus newlini Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 245, pi. 36, fig. 11; pis. 37-39, figs. 59, 60. Carcinosoma ingens Claypole, Amer. Geol., 13, 1894, p. 77, pi. 4. Cayugan(Kokomo): Kokomo, Indiana. Plesiotype.C&t. No. 42559, U.S.N.M. Eusarcus scorpionis Grote and Pitt. Eusarcus scorpionis Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, p. 1. Pohlman, ibid., 4, 1881, p. 21. Grabau, Bull. New York State Mus., 45, 1901, p. 231; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 231. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 410. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 233, pis. 27-34; pi. 35, figs. 2-5; pi. 36, fig. 1; figs. 54-58. Eusarcus grandis Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, p. 17. Pohlman, ibid., 5, 1886, p. 31. Grabau, Bull. New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 410. Cayugan (Bertie) : Williamsville and Buffalo, New York. EUSARCUS SCORPIONIS Pohlman. See Dolichopterus siluriceps. Eusarcus triangulatus Clarke and Ruedemann. Eusarcus triangulatus Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 258, pi. 84, figs. 7-9. Trenton (Schenectady) : Schenectady, Duanesburg, and Rotterdam Junction, New York. Eusarcus vaningeni Clarke and Ruedemann. Eusarcus vaningeni Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 420, figs. 108-115. Cuyagan (Pittsford): Oriskany Creek, near Clinton, New York. EUSPIROCRINTJS Angelin. Genotype: E. spiralis Angelin. Euspirocrinus Angelin, Icon. din. Suec., 24, 1878. Wachsmuth and Springer* Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 366 (Rev. Pal., pt. 1, p. 143); ibid., 1886, pp. 112, 143 (Rev. Pal., pt. 3, sec. 2, pp. 188, 219). Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 173. Wachsmuth, Zittel-East- man Textb. Pal., 1, 1900, p. 157. Springer, ibid., 2d ed., 1913, p. 218. Zittel, Grundzuge Pal., 1, 1910, pp. 135, 154. Euspirocrinus obconicus W. R. Billings. Euspirocrinus obconicus W. R. Billings, Trans. Ottawa Field Nat. Club, 2, 1885, p. 248, pi. fig. Miller, N. A. Geol. Pal., 1889, p. 246, figs. 306, 307. Trenton: Ottawa, Ontario; Hull, Quebec. EUTHYRIS Quenstedt. See Athyris McCoy. FABERIA Miller. Genotype: F. anomala Miller. Faberia Miller, N. A. Geol. Pal., 1889, p. 549. Faberia anomala Miller. Faberia anomala Miller, N. A. Geol. Pal., 1889, p. 549, fig. 1009. Maysville or Richmond: Butler County, Ohio. FAVASTR.EA STRIATA D'Orbigny. See Strombodes striatus. FAVISTELLA Dana. See Columnaria Goldfuss. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 527 \VISTELLA FAVOSIDEA Hall. See Favosites favosidea. ^avistella? franklini Salter. Favistella Franklini Salter, Sutherland's Jour. Voyage in Baffins Bay, etc,, 2, 1852, p. 229, pi. 6, figs. 3, 3a. Haughton, Jour. Geol. Soc. Dublin, 1, 1859, p. 247, pi. 11, fig. 1. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 586. Silurian: Cape Riley, Dobbin Bay, and Cape Hilgard, Arctic America. "avistella? reticulata Salter. Favistella reticulata Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2, App., 1852, p. 229, pi. 6, figs. 2, 2a. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 586. Silurian: Cape Riley, Franklin Pierce Bay, and Cape Hilgard, Arctic America. ^AVOSITELLA Etheridge and Foord. Genotype: Favosites interpuncta Quenstedt. Bythotrypa Ulrich, Geol. Minnesota, 3, 1893, p. 324; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 268. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 24. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 123. (Geno- type: Fistulipora? laxata Ulrich.) Favositella Etheridge and Foord, Ann. Mag. Nat. Hist., 5th ser., 13, 1884, p. 472. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 100-102; Zittel-Eaatinan Textb. Pal., 1913, p. 328. Favositella epidermata (Ulrich). Crepipora epidermata Ulrich, Geol. Surv. Illinois, 8, 1890, p. 471, pi. 40, figs. 1-le. Bythotrypa epidermata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 186 (gen. ref.). Richmond (Fern vale): Wilmington and Savannah, Illinois; Tennessee. . Cat. No. 43229, U.S.N.M. 'avositella laxata (Ulrich). Fistulipora? laxata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 37, pi. 8, figs. 2, 2a. Bythotrypa laxata Ulrich, Geol. Minnesota, 3, 1893, p. 325, pi. 28, figs. 21-25; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 440 (p. 268). Whiteaves, Pal. Foss., 3, pt. 3, 1897, p. 163. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 124, fig. 182c. Favositella laxata Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 101 (gen. ref.); Zittel-Eastman Textb. Pal., 1913, p. 329, fig. 467. Black River and Trenton: St. Andrews, Manitoba; Minneapolis, St. Paul, Kenyon, Berne, and Cannon Falls, Minnesota; Rockton, Illinois; Decorah, Iowa. Fragment of holotype and plesiotypes.G&t. Nos. 43220, 43241, U.S.N.M. FAVOSITES Lamarck. Genotype: F. alveolatus Lamarck. Favosites Lamarck, Cours. de Zool. du Mus. Hist. Nat., Hist. An. Sans Vert., 1812, p. 204. Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 193. Koninck, Desc. Animaux Fossiles, Leige, p. 9. McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 191. Dana, Wilkes U. S. Expl. Exped., 7, Zoophytes, 1838, p. 430. Edwards and Haime, Compt. Rend, de 1'Acad. Sci., 29, 1849, p. 260; Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, pp. 152, 230 HaU, Pal. New York, 2, 1852, p. 124 McCoy, British Pal. Rocks, Fossils, 1854, p. 19 . Pictet, Traite de Pal., 2d ed., 4, 1857, p. 440. Billings, Canadian Jour., n. s., 4, 1859, p. 99. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 246. Verrill, Amer. Jour. Sci., 3d ser., 3, 1872, p. 191; Ann. Mag. Nat. Hist., 4th ser., 9, 1872, p. 360. Duncan, Rep. 41st Meeting 528 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. FA VO SITES Continued. British Assoc. Adv. Sci., 1872, p. 132. Koninck, Animaux Foss. Terr. Carb. Belgique, 1872 (Mem. 1'Acad. Royale Sci. Belgique), 39, p. 136. Nicholson, Canadian Jour., n. s., 14, 1873, p. 38. Salter, Cat. Camb. Sil. Foss., 1873, p. 104. Nicholson, Geol. Mag., 10, 1873, p. 567; Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 44. Moseley, Proc. Royal Soc. London, 25, 1875, p. 66. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 183. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 19. Zittel, Handb. Pal., 1, 1879, p. 236. Nichol- son, Tab. Corals Pal. Period, 1879, p. 37. Thomson, Proc. Phil. Soc. Glas- gow, 13, 1881, pp. 201, 202, fig. 1A.; Proc. Phil. Soc. Glasgow, 14, 1883, p. 349; ibid., 20, 1889, p. 121, fig. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 419. Freeh, Zeits. d. Deutschen geol. Gesell., 37, 1885, p. 100. Hall and Simpson, Pal. New York, 6, 1887, p. 13. Nicholson, Geol. Mag., dec. 3, 5, 1888, p. 107. Miller, N. A. Geol. Pal., 1889, p. 188. Beecher, Trans. Connecticut Acad. Arts Sci., 8, 1891, pp. 209, 210, 215. Girty, Amer. Geol., 15, 1895, pp. 131-146. Sardeson, Neues Jahrb. f. Min., Geol., Pal., Beilage-Bd., 10, 1896, pp. 251, 284. Girty, Amer. Geol., 18, 1896, p. 41. Say (reprint), Bull. Amer. Pal., 1, 1896, p. 278. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 2. Lindstrom, Kongl. Sven. Vet. Akad. Handl., 32, 1899, p. 49. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 130; Zittel-Eastman Textb. Pal., 1, 1900, p. 99; Bull. New York State Mus., 9, 1901, p. 140; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 140. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 213. Beecher, Amer. Jour. Sci., 16, 1903, p. 9. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 84; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 113. Calamopora Goldfuss, Petrefacta, 1826, pp. 77, 245; 2d ed., pt. 1, 1862, p. 72. Emmonsia Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 (Arch. du Mus. d'Hist. Nat., 5), pp. 152-246. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 441. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 257. Rominger, Jour. Sci. Arts, 2d ser., 34, 1862, p. 391. Nicholson, Canadian Jour., n. s., 14, 1873, p. 38. Zittel, Handb. Pal., 1, 1879, p. 237. Nicholson, Tab. Corals Pal. Period, 1879, p. 41. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 422. Miller, N. A. Geol. Pal., 1889, p. 187. Astrocerium Hall, Amer. Jour. Sci. Arts, 2d ser., 11, 1851, pp. 399-400; Pal. New York, 2, 1852, p. 120. Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 391. Nicholson, Canadian Jour., n. s., 14, 1873, p. 39; Tab. Corals Pal. Period, 1879, p. 40. FAVOSITES ALVEOLARIS Lonsdale. See Paleofavosites asper. FAVOSITES ASPERA D'Orbigny. See Paleofavosites aspera. Fayosites basalticus nanus Grabau. Favosites basaltica Goldfuss var. nana Graoau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 110, pi. 10, figs. 5, 6. Upper Monroan (Anderdon): Salt shaft, Detroit, Michigan. FAVOSITES? CAPAX Billings. See Paleofavosites asper. FaTosites concavus Grabau. Favosites concava Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 114, pi. 15, figs. 2, 3. Upper Monroan (Anderdon): Amherstburg, Ontario. Favosites constrictus (Hall). Astrocerium constrictum Hall, Pal. New York, 2, 1852, p. 123, pi. 34 A, 2a-c, 3a-e. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 529 Favosltes constrictus Continued. Favosites constrictus Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 142, fig. 37; Bull. New York State Mus., 45^ 1901, p. 142, fig. 37. Clinton (Rochester): Lockport, etc., New York; Ontario. Favosites corrugatus Weller. Favosites corrugatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 220, pi. 17, figs. 1, 2. Helderbergian (Decker Ferry): Flatbrookville, New Jersey. Favosites cristatus Edwards and Haime. Favosites cristatus Edwards and Haime, Pal. Foss. Terr. Paleozoic, 1851, p. 242. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9, figs. 1-5. Silurian: Gotland, England, etc.; Indiana, Kentucky, and Tennessee (Osgood and Louisville-Brownsport). Favosites cristatus major Davis. Favosites cristatus var. major Davis, Kentucky Fossil Corals, Geol. Surv. Ken- tucky, pt. 2, 1885, pi. 24, fig. 3. Niagaran: Louisville, Kentucky (Louisville); Perry and Decatur Counties, Ten- nessee (Brownsport). Favosites declinatus Foerste. Favosites declinata Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 300, pi. 2, figs. 4a, b, and pi. 4, fig. 4. Clinton (Waco): Near Irvine, Panola, W r aco, etc., Kentucky. Favosites discoideus (Roemer). Calamopora forbesi var. discoidea Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 19, pi. 2, fig. lOa, b; Leth. geog., pt. 1, Leth. Pal., 1883, p. 454. Favosites forbesi var. discoidea Miller, N. A. Geol. Pal., 1889, p. 188 (gen. ref.). Favosites discoidea Foerste, Jour. Geol., 11, 1903, p. 713. Niagaran (Brownsport): Perry, W r ayne, and Decatur Counties, Tennessee. Favosites discus Davis. Favosites discus Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9, figs. 8, 9. Niagaran: Louisville, Kentucky (Louisville); West Tennessee (Brownsport). FAVOSITES EXCRETUS Hall. See Favosites spinigerus. Favosites favosideus (Hall). Favistella favosidea Hall, Pal. New York, 2, 1852, p. 41, pi. 17, figs. 2a-f. Favosites favosideus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 333. Clinton: Kochester, Sodus, etc., New York. Upper Medinan (Brassfield): Dayton, Ohio. Favosites favosus (Goldfuss). Calamopora favosa Goldfuss, Petrefacta, 1826, p. 77, pi. 26, fig. 2a-c; ibid., 2d ed., pt. 1, 1862, p. 73. Troost, 5th Geol. Rep. Tennessee, 1840, p. 70. Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 18, pi. 2, fig. 8. Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 392. Favosites favosa Edwards and Haime Mon. d. Polyp. Foss. d. Terr. Pal. 1851 (Arch, du Mus. d'Hist. Nat., 5), p. 233. Hall, Pal. New York, 2, 1852, p. 126, pi. 34a (bis), fig. 5a-g. Milne-Edwards, Hist. Nat. d. CoralL, 3, 1860, p. 248. 84243 Bull. 9215 34 530 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Favosites fayosus Continued. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 32 (loc. ref.). Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 147; Geol. Surv. Ohio, Pal. 2, 1875, p. 229; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 52. Kominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 21, pi. 4, figs. 1-4; pi. 5, fig. 2. White, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 383, pi. 52, figs. 1, 2. Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 253, pi. 3, figs. 1-4. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 8, figs. 1, 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 239, figs. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 333. Keyes, Missouri Geol. Surv., 4, 1894, p. 120, pi. 14, fig. 2. Hayes and Ulrich, U. S. Geol. Surv., Folio 95, illus. sheet, 1903, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 84, fig. 137. Favosites gothlandicus Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 298, pi. 2, figs, la, b. Silurian (Brassfield-Guelph) : Drummonds Island, Lake Huron; Anticosti; Ontario; Michigan; Missouri; Iowa; Ohio; Kentucky; etc. Plesiotypes.C&t. No. 52654, U.S.N.M. (Davis). Fayosites favosus integritabulatus Swartz. Favosites favosus var. integritabulatus Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 214, pi. 24, figs. 1, 2. Helderbergian (Keyser): Warrior Mountain, east of Flintstone, Maryland. Favosites forbesl Edwards and Haime. Favosites forbesi Edwards and Haime, British Foss. Corals, 1854, p. 258. Lind- strom, Ofvers K. Vet. Akad. Forhandl., 30, 4, 1873, p. 22. Nicholson, Geol. Mag., 10, 1873, p. 569; Canadian Jour., n. s., 14, 1873, p. 40, 45; Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 48, pi. 7, fig. 8; pi. 8, fig. 4; Trans. Royal Soc. Edinburgh, 27, 1876, p. 247; Tab. Corals Pal. Period, p. 56, pi. 1, fig. 7; pi. 2, figs. 1-3; pi. 3, figs. 1, 2. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 421, pi. 9, fig. 5a-c. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 8, figs. 5, 6. Weissermel, Zeits. d. d. geol. Gesell., 46, 1894, p. 648, pi. 52, fig. 1. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 50. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 339, fig. 16, pi. 87, 100. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 31. Silurian: Europe; Rochester, etc., New York; Ontario; Kentucky; Tennessee (Niagaran); Anticosti. Plesiotype Cat. No. 52658, U.S.N.M. (Davis). FAVOSITES FORBESI var. DISCOIDEA Roemer. See Favosites discoideus. FAVOSITES FORBESI var. EEFELENSIS Holtedahl. See Favosites pyriformis. Favosites forbesi occidentalis Hall. Favesites Forbesi var. occidentalis Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 4, figs. 6-15; ibid., mus. ed., 1879, p. 109, pi. 4, figs. 6-15; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 229, pi. 1, figs. 11-14; pi. 3, figs, fr-15. Miller, N. A. Geol. Pal., 1889, p. 188, fig. 175 Girty, Amer. Geol., 15, 1895, pp. 134-136, pi. 7, figs. 1-26; pi. 8, figs. 20-25, figs. 1-5. Weissermel, Zeits. Geol. Gesell., 49, 1897, p. 377, fig. 2. Favosites Forbesi var. Waldronensis Nicholson, Tab. Corals Pal. Period, 1879, p. 60, pi. 2, figs. 2-2b. Niagaran (Waldron): Waldron, Indiana; Newsom, etc., Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 531 FAVOSITES FORBESI var. WALDRONENSIS Nicholson. See Favosites forbesi occiden tails. Fayosltes gaspensis Lambe. Favosites Gaspensis Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 8. Silurian(?): L'Anse au Gascon, Baie des Chaleurs, Quebec Favosites goldfussi (Castelnau). Not recognized. Calamopora goldfussi Castelnau, Syst. Sil., 1843, p. 47. ?Favosites goldfussi Miller, N. A. Geol. Pal., 1889, p. 188, fig. 176. Silurian: Manitoulin Islands, Lake Huron, and Sturgeon Bay, Wisconsin. FAVOSITES GOTHLANDICA Foerste. See Favosites favosus. Favosites gothlandicus (Fought). Corallium gothlandrcum Fought, Amoen. Acad., 1, 1749, p. 106, pi. 4, fig. 27. Calamopora gothlandica Goldfuss, Petrefacta, 1826, p. 78, pi. 26, figs. 3a-e; ibid., 2d ed., 1862, p. 73. Troost, 5th Geol. Rep. Tennessee, 1840, p. 69. Castel- nau, Essai Syst. Sil. I'Amerique Septent., 1843, pi. 16, fig. 3. Roemer, Sil. Fauna West Tennessee, Breelau, 1860, p. 18, pi. 2, figs. 9, 9a, 9b. Favosites gothlandica Lam., Syst., 2, 1816, p. 206. Edwards and Haime, Mon.d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 232. Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, App., 1852, p. 228. Edwards and Haime, Mon. British Foss. Corals, Pal. Soc., 1854, p. 256, pi. 60, figs. 1, la. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 305, fig. 302; Proc. Portland Soc. Nat. Hist., 1, 1863, p. 106. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 83. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 32. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 50. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 3, pi. 1, fig. 1. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 30. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 244. Lambe, Cruise of the " Neptune," App. 4, 1906, p. 325. Silurian: Europe and (?) America. Observation. Typical F. gothlandicus is probably not represented in Ameri- can strata. The above references to American Silurian forms have not been accurately determined. F. favosus and F. niagarensis are the principal American species usually identified as F. gothlandicus. FAVOSITES HALLIANA Nicholson. See Cladopora multipora. Fayosites helderbergiae praecedens Schuchert. Favosites niagarensis? Hall, Pal. New York, 2, 1852, p. 324, pi. 73, figs, la-le. Favosites helderbergiae praecedens Schuchert, Am. Geol., 31, 1903, p. 164. Grabau, Bull. New York State Mus., 92, 1906, p. 108, fig. 7. Swartz, Mary- land Geol. Surv., Low. Dev., 1913, p. 209, pi. 22, figs. 2-7. Helderbergian: Schoharie, Litchfield, etc., New York (Coeymans); Cash Valley, Pinto, etc., Maryland; West Virginia; Pennsylvania (Keyser). Cotypes.Ca.t. No. 10533, U.S.N.M. Favosites hisingeri Edwards and Haime. Favosites hisingeri Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist, Nat., 5), 1851, p. 240, pi. 17, figs. 2-2b; Mon. British Foss. Corals, Pal. Soc., 1854, p. 259, pi. 61, figs, la, lb. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 51. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 6. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 29. 532 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Favosites hisingeri Continued. Astrocerium parasiticum Hall, Pal. New York, 2, 1852, p. 122, pi. 34, fig. 2a-i. Favosites parasiticum Grabau, Bull. New York State Mus., 45, 1901, p. 141, fig. 35; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 141, fig. 35. Astrocerium venustum Hall, Pal. New York, 2, 1852, p. 120, fig.; p. 121, pi. 34, figs, la-j; Rep. Geol. Surv. Wisconsin, 1862, p. 66, fig. 1. Whitfield, Geol. Wisconsin, 4, 1882, p. 270, pi. 13, figs. 8-10. Chamberlin, Geol. Wisconsin, 1, 1883, p. 188, fig. Calamopora venusta Rorninger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 394. Favosites venustus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 83. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 390. Nichol- son and Hinde, Canadian Jour., n. s., 14, 1874, p. 147. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 226; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 52. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 23, pi. 5, fig. 3. Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 253, pi. 2, figs. 7, 8. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9, figs. 7, 10. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 243, figs. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 335. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 140, fig. 34; Bull. New York State Mus., 45, 1901, p. 140, fig. 34. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 84, fig. 136a, b. Silurian: England, etc. Various localities in the Cataract and Niagaran of the United States and Canada. Favosites hisingeri aplata Foerste. Favosites hisingeri-aplata Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 299, pi. 2, fig. 2; pi. 4, fig. 5. Clinton (Waco): Near Estill Springs, north of Irvine, etc., Kentucky. Favosites hispidus Rominger. Favosites hispidus Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 23, pi. 5, %. 4. Niagaran: Drummond's Island, Lake Huron; Point Detour, Michigan. Observation. Probably the same as F. hisingeri. Favosites louisvillensis Davis. Favosites louisvillensis Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9, fig. 6. Niagaran (Louisville): Near Louisville, Kentucky. Favosites louisvillensis Greene. Favosites louisvillensis Greene, Cont. Indiana Pal., 1, pt. 19, 1904, p. 186, pi. fig. 2. Niagaran (Louisville): Near Louisville, Kentucky. Observation. On account of the synonymy that undoubtedly exists among th Louisville corals, it is useless to propose a new name for this preoccupied term. Moreover it is possible that both names refer to the same species. FAVOSITES LYCOPERDON Owen. See Chaetetes lycoperdon. Favosites lycopodites Vanuxem. Not recognizable. Favosites lycopodites Vanuxem, Geol. Rep. 3d District New York, 1842, p. 46, fig. 3. Emmons, Nat. flist. New York, Geol., 2, 1842, p. 389, fig. 3; p. 395. Mather, Nat. Hist. New York, Geol., 1, 1843, p. 397, fig. 3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 242, fig. Trenton: New York, etc. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 533 Favosites maximus (Troost). Not recognized. Calamopora maximus Troost, 5th Rep. Geol. Tennessee, 1840, p. 73. Favosites maxima Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844, p. 76, fig. 7, pi. 13. Yandell and Shumard, Contr. Geol. Kentucky, 1847, p. 7. Favosites cf. maximus Grabati, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 115, pi. 15, figs. 4, 5. "Mountain limestone": Near Nashville, Tennessee. Observation. Troost' s description probably refers to a large-celled variety of Columnaria alveolata, abundant in the Richmond group north of Nash- ville. Owen's figures are of a true Favosites, probably F. favosus. Grabau's reference is also to a true Favosites. FAVOSITES MULTIPORA Nicholson. See Cladopora multipora. Favosites niagarensis Hall. Favosites niagarensis Hall, Pal. New York, 2, 1852, p. 125, pi. 34a (bis), fig. 4a-i Billings, Canadian Nat. Geol., 1, 1856, p. 60, pi. fig. 1; ibid., 4, 1859, p. 103. Nicholson, Canadian Jour., n. s., 14, 1873, p. 40. Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1895, pi. 8, figs. 3, 4. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 334; Geol. Surv. Ohio, Pal., 7, 1893, p. 601. Lambe, Cont. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 7. Grabau, Bull. New York State Mus., 45, 1901, pp. 142, 143, fig. 38; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 142, fig. 38. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 28; Bull. New York State Mus., 65, 1903, p. 48. Shimer, Bull. New York State Mus., 80, 1905, p. 236. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 85. Niagaran: Niagara Falls, Lockport, etc., New York (Rochester); Ontario; Michi- gan; Iowa; Kentucky; Tennessee; etc. FAVOSITES NIAGARENSIS? Hall (part). See Favosites helderbergise praecedens. FAVOSITES NIAGARENSIS Rominger. See Paleofavosites asper. FAVOSITES NIAGARENSIS var. SPINIGERA Hall. See Favosites spinigerus. Favosites obliquus Rominger. Favosites obliquus Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 24, pi. 28, fig. 2. Niagaran: Point Detour, Michigan; Drummonds Island, Lake Huron; Mason- ville, Iowa. Favosites obpyriformis Foerste. Favosites obpyriformis Foerste, Jour. Geol., 11, 1903, p. 713; Bull. Sci. Lab. Denison Univ., 14, 1909, p. 100, pi. 4, fig. 74. Niagaran (Brownsport) : Near Vice, Decatur County, Tennessee. Favosites occidens WTiitneld. Favosites occidens Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878, p. 78; Geol. Wisconsin, 4, 1882, p. 313, pi. 23, figs. 6, 7. Niagaran (Guelph): Ozaukee, etc., Wisconsin. FAVOSITES PARASITICUS Hall. See Favosites hisingeri. FAVOSITES PROLIFICUS Billings. See Paleofavosites asper. Favosites pyriformis (Hall). Asterocerium pyriforme Hall, Pal. New York, 2, 1852, p. 123, pi. 34A, fig. la-e. 534 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Favosites pyriformis Continued. Favosites pyriformis Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 25. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 141, fig. 36; Bull. New York State Mus., 45, 1901, p. 141, fig. 36. Weller, Geol. Surv. New Jersey, 3, 1903, p. 220, pi. 17, figs. 3-5. Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 211, pi. 23, figs. 1-4. Favosites forbesi eifelensis Holtedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32, 1914, p. 11, pi. 4, figs. 5, 6. Clinton (Rochester) and Niagaran (Lockport): Lockport, etc., New York. Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Cook- erly, etc., Maryland (Keyser); southwestern Ellesmereland, Arctic America. Observation. The Helderbergian specimens described by Weller, Swartz, and Holtedahl probably belong to a distinct species or variety as noted by the last author. Favosites pyriformis kokomoensis Foerste. Favosites pyrifonne-kokomoensis Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, 1909, p. 9, pi. 1, figs. 17a T d, pi. 2, fig. 15. Cayugan (Kokomo): Kokomo, Indiana. Favosites rectangularis Grabau. Favosites rectangularis Grabau, Michigan Geol. Surv., Geol. Ser. ? 1, 1909, p. Ill, pi. 14, figs. 3, 4. Upper Monroan (Anderdon): Salt shaft, Detroit, Michigan; Amherstburg, On- tario. FAVOSITES SERIATA Nicholson. See Cladopora seriata. Favosites spinigerus Hall. Favosites Niagarensis? var. spinigera Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 4, fig. 1-5. Favosites spinigerus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 108, pi. 4. figs. 1-5; llth Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 228, pi. 3, figs. 1-5; pi. 8, figs. 1, 2. Girty, Amer. Geol., 15, 1895, p. 136, pi. 8, figs. 6-15. Favosites excretus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 9, figs. 1, 2. Favosites spongilla Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 25. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 8, figs. 7-9. Niagaran (Waldron-Brownsport): Waldron, St. Paul, etc., Indiana; Newsom, etc., Tennessee; Louisville, Kentucky. Plesiotype.C&t. No. 52645, U.S.N.M. FAVOSITES SPONGILLA Rominger. See Favosites spinigera. Favosites striatus Say. Not recognized. Favosites striatus Say, Amer. Jour. Sci., 1, 1818, p. 384. Silurian: Falls of the Ohio, etc. Favosites subelongus Savage. Favosites subelongus Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 64, pi. 3, figs. 9, 10. Upper Medinan (Edgewood): Near Edgewood, Louisiana, and south of Clarks- ville, Pike County, Missouri. Favosites troosti Edwards and Haime. Favosites troosti Edwards and Haime, Mon. d. Polyp. FOBS. d. Terr. Pal., 1851(Arch. du Mus. d'Hist. Nat., 5), p. 238, pi. 18, figs. 1, la. Billings, Canadian Jour., n. s., 4, 1859, p. 103. Nicholson, Canadian Jour., n. s., 14, 1873, p. 40. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 535 Favosites troosti Continued. Silurian: Iowa. Observation. Although recorded from the Silurian of Iowa, this species is undoubtedly a Devonian form like F. hemisphericus. Fayosites tuberoldes Grabau. Favosites tuberoides Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 112, pi. 14, fig. 2. Upper Monroan ( Amherstburg) : Detroit River, opposite Amherstburg, Ontario. FAVOSITES VENUSTUS Hall. See Favosites hisingeri. FENESTELLA Lonsdale. (Not Fenestella Bolten 1798.) Genotype: Gorgonia antiqua Goldfuss. Accepted genotype : Fenestella plebeia McCoy. Fenestella Lonsdale, Murchison's Sil. Syst., 1839, p. 677. Phillips, Pal. FOBS., 1841, p. 22. McCoy, Synopsis Carb. Foss. Ireland, 1844, p. 200. Lonsdale, Russia and the Ural Mountains, 1, Appendix A, 1845, p. 629. King, Mon. Perm. Foss., 1850, p. 34. McCoy, British Pal. Foss., 1854, p. 49. Hall, Amer. Jour. Sci. Arts, 2d ser., 23, 1857, pp. 203-204. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 165. Eichwald, Leth. Rossica, 1, 1860, p. 356. Nicholson, Pal. Province Ontario, 1874, p. 104. Zittel, Handb. Pal., 1, Munich, 1880, p. 600. Vine, Geol. Mag., dec. 2, 7, 1880, p. 511. Shrubsole, Quart. Jour. Geol. Soc. London, 37, 1881, p. 179. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 150. Claypole, Quart. Jour. Geol. Soc. London, 39, 1883, p. 31. Vine, Proc. Yorkshire Geol. Polyt. Soc., n. s., 8, 1884, p. 164; Rep. 53d Meeting British Assoc. Adv. Sci., 1884, p. 190 (restricted). Hall, Rep. State Geol. New York for 1884, 1885, p. 35. Waagen and Pichl, Pal. Indica, ser. 13, 1885, pp. 773, 776. Ulrich, Contr. Amer. Pal., 1, 1886, p. 4. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 83. Hall and Simpson, Pal. New York, 6, 1887, p. 22. Miller, N. A. Geol. Pal., 1889, p. 302. Girty, Mon. U. S. Geol. Surv., 32, pt. 2, 1889, pp. 5, 18. Ulrich, Geol. Surv. Illi- nois, 8, 1890, pp. 395, 534. Pocta, Syst. Sil. Boheme, 8, pt. 1, 1890, p. 40. Whidborne, Devon. Fauna England (Pal. Soc. Publ.), 2, pt. 4, 1895, p. 165. Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp. 687, 724; 47th Ann. Rep. New York State Mus., pp. 881, 918. Ulrich, ZittePs Textb. Pal. (Engl. ed.), 1896, p. 281. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 500. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 159. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 37, 244. Grabau, Bull. New York State Mus., 45, 1901 , p. 170; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 170. Condra, Nebraska Geol. Surv., 2, pt. 1, 1903, p. 49. Cumings, Amer. Jour. Sci., 17, 1904, pp. 49, 58; ibid., 20, 1905, p. 169, pis. 5-7. Hennig, Archiv. fur Zool., K. Sven. Vet.-Akad. Stockholm, 3, 1906, p. 1. Cumings, 30th Ann. Rep. Dep. Geol. Nat. Res. Indiana, ]906, p. 1276. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 50. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 142. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 746. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 175; Zittel-Eastman Textb. Pal., 1913, p. 341. Fenestrella (in error for Fenestella) D'Orbigny, Prodr. de Pal., 1, 1850, p. 44. Actinostoma Young and Young, Quart. Jour. Geol. Soc. London, 30, 1874, p. 681. Vine, Proc. Yorkshire Geol. Polyt. Soc., 9, 1885, p. 84. Flabelliporina Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp. 703, 724; 47th Ann. Rep. New York State Mus., pp. 897, 918; 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 521. FENESTELLA ACMEA Hall. See Semicoscinium acmeum. 536 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Fenestella acuticosta Roemer. Fenestella acuticosta Roemer, Sil. Fauna West. Tennessee, 1860, p. 30, pi. 2, figs. 15, 15a. Niagaran (Brownsport): Perry County, Tennessee. Fenestella (Cycloporlna) altidorsata Ulrich and Bassler. Fenestella (Gycloporina) altidorsata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 282, pi. 45, fig. 15; pi. 49, figs. 1-3. Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland. Cotypes.G&t. No. 60749, U.S.N.M. FENESTELLA AMBIGUA Hall. See Loculipora ambigua. FENESTELLA ASPERA Hall. See Chasmatopora aspera. FenesteUa bellistriata Hall. Fenestella bellastriata Hall, Trans. Albany Inst., 10, 1883, p. 63 (abstract, 1879, p. 7); llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 252. Ulrich, Geol. Surv. Illinois, 8, 1890, pi. 54, fig. 2. Niagaran (Waldron): Waldron, Indiana. Plesiotype.Csit. No. 44081, U.S.N.M. Fenestella bicornis Spencer. Not recognizable. Fenestella bicornis Spencer, Trans. St. Louis Acad. Sci., 4, 1884, p. 604, pi. 7, fig. 2; Bull. Mus. Univ. State Missouri, 1, 1884, p. 55, pi. 7, 2. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 247. Clinton: Hamilton, Ontario. FENESTELLA CONFERTA Hall. See Polypora conferta. Fenestella crlbrosa Hall. Fenestella cribrosa Hall, Pal. New York, 2, 1852, p. 166, pi. 40D, figs. 3a, b. Bass- ler, Bull. U. S. Geol. Surv., 292, 1906, pp. 50, 51, pi. 19, figs. 3-5. Clinton (Rochester): Lockport and Middleport, New York. Plesiotype.Cat. No. 35553, U.S.N.M. Fenestella cumberlandica Ulrich and Bassler. Fenestella cumberlandica Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 280, pi. 47, figs. 1, 2. Helderbergian (Keyser): Cash Valley, etc., near Cumberland, Maryland. Cotypes.Czt. No. 60745, U.S.N.M. Fenestella elegans Hall. Fenestella elegans Hall, Pal. New York, 2, 1852, p. 164, pi. 40D, figs, la-g. Chapman, Canadian Jour., n. s., 7, 1862, p. 109, fig. 87; ibid., 8, 1863, p. 212, fig. 217; Expos. Min., Geol. Canada, 1864, p. 112, fig. 87; p. 184, fig. 217. Grabau, Bull. New York State Mus., 45, 1901, p. 170, fig. 70; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 170, fig. 70. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 51, pi. 19, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 142, fig. 198. Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario. FENESTELLA FLABELLIFORMIS Eichwald. See Dictyonema flabelliforme. FENESTELLA GRACILIS Hall. See Chasmatopora gracilis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 537 Fenestella granulosa Whitfield. Fenestella granulosa Whitfield, Ann. Rep. Geol. Surv. Wisconsin for 1877, 1878, p. 68; Geol. Surv. Wisconsin, 4, 1882, p. 252, pi. 12, figs. 1, 2. Buel, Trans. Wisconsin Acad. Sci., 5, 1882, p. 187. Chamberlin, Geol. Wisconsin, 1, 1883, p. 173, fig. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 835, pi. 29, figs. 7, 7a. Fenestella oxfordensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 159, pi. 6, fig. 13. Richmond: Delafield, etc., Wisconsin (Maquoketa); Oxford, etc., Ohio (Waynes- ville- Whitewater) . . No. 43635, U.S.N.M. (Holotype of F. oxfordensis.) FENESTELLA INCEPTA Hall. See Chasmatopora incepta. EENESTELLA NERVATA Nicholson. See Ptiloporella nervata. FENESTELLA OXFORDENSIS Ulrich. See Fenestella granulosa. Fenestella parvullpora Hall. Fenestella parvulipora Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 12, figs. 1-9; ibid., Mus. ed., 1879, p. 123, pi. 12, figs. 1-9; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 249, pi. 11, figs. 1-9. Niagaran (Waldron): Waldron, Indiana. Fenestella pertenuts Halt. Fenestella pertenuis Hall, Trans. Albany Inst., 10, 1883, p. 62 (abstract, 1879, p. 6); llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 251. Niagaran (Waldron): Waldron, Indiana. FENESTELLA PRISCA? Hall. See Semicoscinium tenuiceps. Fenestella prolixa Hall. Fenestella prolixa Hall, Trans. Albany Inst., 10, 1883, p. 64 (abstract, 1879, p. 8); llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 253. Niagaran (Waldron): Waldron, Indiana. FENESTELLA PUNCTOSTRIATA Hall. See Polypora punctostriata. Fenestella subarctlca Whiteaves. Fenestella subarctica Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 39; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 249, pi. 23. Niagaran: Ekwan River, Canada. FENESTELLA TANTULUS Hall. See Polypora tantula. FENESTELLA TENUICEPS Hall. See Semicoscinium tenuiceps. Fenestella tenuis Hall. Fenestella tenuis Hall, Pal. New York, 2, 1852, p. 51, pi. 19, figs. 5a-c. Clinton: Wolcott Furnace, Whiting's Mill, Wayne County, New York. FISTULIPORA McCoy. Genotype: Fistulipora minor McCoy = Calamopora incrustans Phillips. Fistulipora McCoy, Ann. Mag. Nat. Hist, 2d ser., 3, 1850, p. 131, figs, a, b. Milne- Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 219. McCoy, British Pal. Foss., 1854, p. 11; Contr. British Pal., 1854, p. 99. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 438. Billings, Canadian Nat. Geol., 3, 1858, p. 419; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 165; Canadian Jour., n. s., 4, 538 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. FISTULIPORA Continued. 1859, p 97. Mine-Edwards, Hist. Nat. dea Corall., 3, 1860, p. 238. Nichol- son, Pal. Prov. Ontario, 1874, p. 63. Dybowski, Verb. Mineral. Gesell. St. Petersburg (2), 10, 1876, p. 180. Lindstrom, Ann. Mag. Nat. Hist., ser. 4, 18, 1876, p. 6. Nicholson and Etheridge, Mon. Sil. FOBS. Girvan Dist., 1878, p. 38. Nicholson, Pal. Tabulate Corals, 1879, p. 292. Zittel, Handb. d. Pal., 1, 1880, p. 616; Genus Monticulipora, 1881, p. 91. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 156. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 477; Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 43. Thomp- son, Proc. Phil. Soc. Glasgow, 14, 1883, p. 351. Nicholson and Foord, Ann. Mag. Nat. Hist., 5th ser., 16, 1885, p. 500. Waagen and Wentzel, Pal. Indica, 13th ser., 1886, pp. 909, 922. Hall and Simpson, Pal. New York, 6, 1887, p. 18. James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 32. Miller, N. A. Geol. Pal., 1889, p. 305. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 382, 474. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 119. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 269; p. 105 (not Ulrich). Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 559. Lind- strom, Kongl. Sven. Vet. Akad. Handl., 32, 1899, pp. 48, 52. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 25, 266. Condra, Nebraska, Geol. Surv., 2, pt. 1, 1903, p. 29. Cumings, 30th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1906, p. 1292. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 22. Grabau and Shimer, N. A. Index Fossils, 1, p. 124. Hennig, Archiv. fiir ZooL, 4, pt. 21, 1908, p. 16. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 329. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 262. Didymopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 156. Dybowskia Waagen and Pichl, Pal. Indica, ser. 13, p. 717. Dybowskiella Waagen and Wentzel, Pal. Indica, 13th ser., 1886, pp. 910, 916. Stuckenberg, Mem. du Comite Geologique Russia, 10, 3, 1895, p. 22. Lind- strom, Kongl. Sven. Vet.-Akad. Handl., 32, 1899, pp. 52, 53. Lichenalia (not Hall, 1852) Hall and Simpson, Pal. New York, 6, 1887, p. xvi. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 168. Miller, N. A. Geol. Pal., 1889, p. 311. Simpson, 14th Ann. Rep. State Geologist New York for 1894, 1897, p. 559. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1889, p. 171. Fistulipora crustula Bassler. Ceramopora incrustans Hall, Pal. New York, 2, 1852, p. 169, pi. 40E, figs. 2a-d. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 198. Grabau, Bull. New York State Mus., 45, 1901, p. 163, fig. 59; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 163, fig. 59. Fistulipora crustula Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 24, pi. 7, figs. 7-10; pi. 8, figs. 16, 17; pi. 23, fig. 15. Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Ontario. Cotypes. Cat. No. 35481, U.S.N.M. FISTULIPORA FLABELLATA Ulrich. See Chiloporella flabellata. Fistulipora halli Rominger. Fistulipora Halli Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 119. Lichenalia concentrica var. parvula Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 7, figs. 1, 2; ibid., mus. ed., 1879, p. 117, pi. 7, figs. 1, 2; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 241, pi. 6, figs. 1, 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 340, figs. Niagaran ( Waldron) : Waldron, Indiana; Newsom, Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 539 Flstullpora hemlspherica (Roemer). Thecostegites hemisphericus Roemer, Sil. Fauna West. Tennessee, 1860, p. 25, pi. 2, figs. 3, 3a. Miller, N. A. Geol. Pal., 1889, fig. 228 (p. 207). Fistulipora hemispherica Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 270. Fistulipora (Thecostegites) hemispherica Foerste, Jour. Geol., 11, 1903, p. 712 (loc. occ.). Niagaran (Brownsport): Perry and Wayne Counties, Tennessee. Fistulipora laminata (Hall). Callopora laminata Hall, Pal. New York, 2, 1852, p. 146, pi. 40, figs. 3a-e. Leioclema? laminatum Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 416, 425. Lioclema (?Nicholsonella) laminatum Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 304. Fistulipora laminata Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 22, 23, pi. 7, figs. 4-6; pi. 8, figs. 9, 10. Clinton (Rochester): Lockport and Rochester, New York; Grimsby, Ontario. Plesiotype.C&t. No. 35467, U.S.N.M. FISTULIPORA? LAXATA Ulrich. See Favositella laxata. FisTULrpORA LENS Whitfield. See Calloporella? lens. Fistulipora lockportensis Bassler. Fistulipora lockportensis Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 23, pi. 7, figs. 1-3. . Clinton (Rochester) : Lockport and Rochester, New York. Cotypes. Cat. No. 35489, U.S.N.M. Fistulipora? multipora James. Fistulipora? multipora James, Paleontologist, 1, 1878, p. 2. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 38. Cincinnatian: Cincinnati, Ohio, and vicinity. Observation. Not a valid species. Insufficiently described and types include a variety of forms. Fistulipora neglecta Rominger. Fistulipora neglectaRominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 119. Nickles and Bassler, Bull. U. S. Geol. Surv , 173, 1900, p 272. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 125. Lichenalia concentrica Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 5, figs. 9-16; pi. 6, figs. 1, 2, 4, 7-10; pi. 7, figs. 3-11; ibid., mus. ed., 1879, p. 116, pi. 5, figs. 9-16; pi. 6, figs. 1, 2, 4, 7-10; pi. 7, figs. 3-11. Quenstedt, Roehren- und Sternkorallen, 1881, p. 95, pi. 146, 71, 72. Hall, llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 240, pi. 4, figs. 9-16; pi. 5, figs. 1, 2, 4, 7-10; pi. 6, figs. 3-11. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, pi. 3, fig. 5. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 168, pi. 17, 10. Niagaran (Waldron) : Waldron, Indiana; Newsom, Tennessee. Fistulipora neglecta maculata (Hall). Lichenalia concentrica var. maculata Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876, pi. 6, figs. 3, 5, 6; ibid., mus. ed., 1879, p. 117, pi. 6, figs. 3, 5, 6; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 241, pi. 5, figs. 3, 5, 6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 340, fig. Fistulipora neglecta-maculata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 272. Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee. 540 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. FISTULIPORA OWENI James. See Cceloclema oweni. FISTULIPORA RUGOSA Whitfield. See Batostoma? rugosum. Fistulipora eiluriana James. Fistulipora siluriana James, Paleontologist, No. 3, 1879, p. 19. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 39. Cincinnatian: Cincinnati, Ohio, and vicinity. Observation. Not a valid species. The types are not figured, are insufficiently described, and proved upon examination to include several distinct species. FISTULIPORA SOLIDISSIMA Whitfield. See Lioclemella solidissima. Fistulipora tuberculosa (Hall). Rhinopora tuberculosa Hall, Pal. New York, 2, 1852, p. 170, pi. 40E, figs. 4a-c. Grabau, Bull. New York State Mus., 45, 1901, p. 175, fig. 77; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 175, fig. 77. Fistulipora tuberculosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 23, pi. 7, figs. 11-15; pi. S, figs. 7, 8; pi. 23, fig. 14. Clinton (Rochester): Lockport, New York; Grimsby, Ontario. Thin sections of holotype and plesiotype.Ca.t. Nos. 35485, 35486, U.S.N.M. FISTULIPORELLA Simpson. Genotype: F. constricta Hall and Simpson. Fistuliporella Simpson, 14th Ann. Rep. State Geol. New York, 1897, p. 560. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 262. Fistuliporella cumulata Ulrich and Bassler. Fistuliporella cumulata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 263, pi. 41, figs. 1-5. Helderbergian (Keyser): Cash Valley and Pinto, Maryland; Keyser, West Virginia. Cotypes. Cat. No. 53661, U.S.N.M. Fistuliporella marylandica Ulrich and Bassler. Fistuliporella marylandica Ulrich and Bassler, Maryland Geol. Surv., Low, Dev., 1913, p. 266, pi. 45, figs. 8-11; pi. 48, fig. 4. Helderbergian (Keyser): Cash Valley, Maryland. Cotypes,- Cat, No. 60756, U.S.N.M. Fistuliporella maynardi Ulrich and Bassler. Fistuliporella maynardi Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, pi. 46, figs. 3-7. Helderbergian (Keyser): Cash Valley, Maryland. Cotypes. Cat. No. 60755, U.S.N.M. Fistuliporella minima Ulrich and Bassler. Fistuliporella minima Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 265, pi. 43, figs. 13-16. Helderbergian (Keyser): Cash Valley, Maryland; Keyser, West Virginia, Holotype. Cat. No. 53659, U.S.N.M. Fistuliporella quinquedentata Ulrich and Bassler. Fistuliporella quinquedentata Ulrich and Baesler, Maryland Geol. Surv., Low. Dev., 1913, p. 264, pi. 41, figs. 6-8. Helderbergian (Keyser): Keyser, West Virginia. Holotype. Cat. No. 53660, U.S.N.M. FLABELLIPORELLA Simpson. See Polypora McCoy. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 541 FLABELLIPORINA Simpson. See Fenestella Lcmsdale. FLETCHERIA Edwards and Haime. Genotype: F. tubifera Edwards and Haime. Fletcheria Edwards and Haime, Mon. d. Polyp. FOBS. d. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), p. 156, 300. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 446. Milne-Edwards, Hist. Nat. d. Corall, 3, 1860, p. 300. Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 130. Lindstrom, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 13. Zittel, Handb. Pal., 1, 1879, p. 235. Nicholson, Tab. Corals Pal. Period, 1879, p. 206. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 488. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1889, p. 47. Sherzer, Amer. Geol., 7, 1891, pp. 296-301. Fletcheria incerta (Billings). Columnaria incerta Billings, Canadian Nat. Geol., 4, 1859, p. 428, fig. 1, 2; Geol. Canada, Geol. Surv. Canada, 1863, p. 124, fig. 44, a, b. Fletcheria incerta Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 48, pi. 3 , figs. 8, 8a, 9. Chazyan: Mingan Islands, Island of Montreal, etc., Quebec; Ottawa, Ontario. FRAMMIA Holtedahl. Genotype: F. dissimilis Holtedahl. Frammia Holtedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32, 1914, p. 35. Frammia dissimilis Holtedahl. Frammia dissimilis Holtedahl, 2d Arct. Exp. "Fram," 1898-1902, No. 32, 1914, p. 35, pi. 8, figs. 17, 18, ?19. Helderbergian (Lower beds): Southwestern Ellesmereland, Arctic America. FUCOIDES ALLEGHANIENSIS Taylor. See Arthrophycus alleghaniensis. Fucoides auriformis Hall. Fucoides auriformis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 47, pi. 1, fig. 2; Pal. New York, 2, 1852, p. 7, pi. 3, fig. 3. Upper Medinan: Medina, etc., New York. Observation. Probably a burrow. FUCOIDES BILOBA Vanuxem. See Rusophycus biloba. FUCOIDES BRONGNIARTII Harlan. See Arthrophycus alleghaniensis. FUCOIDES DEMISSUS Vanuxem. See Phytopsis tubulosa. FUCOIDES DENTATUS Brongniart. See Diplograptus dentatus and Diplograptue foliaceus. FUCOIDES HARLANI Vanuxem. See Arthrophycus alleghaniensis. Fucoides heterophyllus Hall. Fucoides heterophyllus Hall, Nat. Hist. New York, Gecl., 4, 1843, p. 47, pi. 1, fig. 3; Pal. New York, 2, 1852, p. 7, pi. 3, fig. 4. Upper Medinan: Medina, etc., New York. Observation. Probably a burrow. FUCOIDES LINEARIS Haldemann. See Scolithus linearis. FUCOIDES SERRA Brongniart. See Tetragraptus serra. FUCOIDES SIMPLEX Emmons. See Diplograptus foliaceus. FUNGISPONGIA Ringueberg. Genotype: F. irregularis Ringueberg. Fungispongia Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 147. 542 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Funglspongia irregularis Ringueberg. Fungispongia irregularis Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 147, pi. 3, fig. 3. Lower Clinton: Lockport, New York. FUSISPIRA Hall. Genotype: F. ventricosa Hall. Fusispira Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 229 (Extract, 187i, p. 5). Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 315, 316. Zittel, Handb. Pal., 2, 1882, p. 239. Miller, N. A. Geol. Pal., 1889, p. 404. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1075. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697. Fusispira angusta Ulrich and Scofield. Fusispira angusta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1079, pi. 81, figs. 28-31. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002e. Trenton: Near Cannon Falls and near Fountain, Minnesota (Prosser); near Burgin. Kentucky. Cotypes.C&t. No. 45811, U.S.N.M. Fusispira angusta subplana Ulrich and Scofield. Fusispira angusta var. subplana, Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1079, pi. 81, fig. 32. Trenton (Prosser): Near Cannon Falls, Minnesota. Cotypes.C&t. No. 43812, U.S.N.M. Fusispira calcifera (Billings). Subulites calcifera Billings, Canadian Nat. Geol., 4, 1859, p. 360, fig. 10; Geol. Canada, Geol. Surv. Canada, 1863, p. 120, fig. 34. Miller, N. A. Geol. Pal., 1889, p. 428, fig. 717. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1142, fig. Fusispira calcifera Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070 (gen. ref.). Canadian (Romaine): Mingan Islands, Quebec. Fusispira compacta Hall and Whitfield. Fusispira compacta Hall and Whitfield, U. S. Geol. Expl. 40th Paral., 4, 1877, p. 236, pi. 1, fig. 25. Pogonip: Pogonip Mountain, White Pine District, Nevada. Holotype Cat. No. 17365, U.S.N.M. Fusispira convexa Ulrich and Scofield. Fusispira convexa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1077, pi. 80, figs. 8-10. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002d. Trenton: Trenton Falls, New York; near Cannon Falls, Minnesota (Prosser). Cotypes.C&t. Nos. 45813, 45814, U.S.N.M. Fusispira daphne (Billings). Subulites Daphne Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 223, fig. 206. Fusispira daphne Ulrich and Scofield, Geol. Minnesota, 1897, p. 1070 (gen. ref.). Chazyan (Quebec L): Point Rich, Newfoundland, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 548 Fusisplra elongata Hall. Fusispira elongata Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, pi. 8, fig. 5, p. 229 (Extract, 1871, p. 6). Whitfield, Geol. Wisconsin, 4, 1882, p. 245, pi. 9, fig. 3. Chamberlin, Geol. Wisconsin, 1, 1883, p. 167, fig. Whit- eaves, Pal. Fossils, Geol. Surv. Canada, 3, pt. 3, 1897, p. 200 (loc. occ.). Trenton: Elkader, Iowa (Prosser); Lower Fort Garry, Manitoba. Fusispira inflata (Meek and Worthen). Subulites inflatus Meek and Worthen, Proc. Acad. Nat. Sci., Philadelphia, 1870, p. 47; Geol. Surv. Illinois, 6, 1875, p. 495, pi. 23, fig. 5. Fusispira infiata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1075, pi. 80, figs. 17 and 18. \\Tiiteaves, Pal. Fossils, 1, Geol. Surv. Canada, 3, pt. 3, 1897, p. 199. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 168. Grabau and Sliimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002a. Trenton: Carroll County, Illinois (Galena); Hader, Wykoff, etc., Minnesota (Prosser and Stewartville); Lake Winnipeg, Canada; Baffin Land. Plesiotypes.C&t. Nos. 45815, 45816, U.S.N.M. Fusispira inflata ventricosa (Hall). Fusispira ventricosa Hall, 24th Hep. New York State Mus. Nat. Hist., 1872, p. 229, pi. 8, fig. 6 (extract, 1871, p. 5). Whitfield, Geol. Wisconsin, 4, 1882, p. 245, pi. 9, fig. 2. Miller, N. A. Geol. Pal., 1889, p. 405, fig. 676. Whiteaves, Canadian Rec. Sci., 5, 1893, p. 328 (loc. occ.). Fusispira inflata var. ventricosa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1075, pi. 80, figs. 17, 18. Trenton: Depere, West Jefferson, etc., Wisconsin; Stewartville, Wykoff, etc., Minnesota. Fusispira intermedia Ulrich and Scofield. Fusispira intermedia Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076, pi. 80, figs. 19-21. Trenton (Prosser and Stewartville): Stewartville and south of Cannon Falls, Minnesota. Cotype Cat. No. 45817, U.S.N.M. Fusispira nobilis Ulrich and Scofield. Fusispira nobilis Ulrich and Scofield, Geol. Minnesota, 8, pt. 2, 1897, p. 1078, pi. 80, figs. 2-4. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 168. Trenton: W 7 ykoff, Pleasant Grove, and Fountain, Minnesota (Prosser); Baffin Land. CotypesCzt. No. 45818, U.S.N.M. Fusispira obesa (Whitfield). Subulites obesus Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 318, pi. 26, fig. 7. Fusispira obesa Ulrich and Scofield, Geol. Minnesota,^, pt. 2, 1897, p. 1070, (gen. ref.). Canadian (Beekmantown) : Fort Cassin, Vermont. Fusispira planulata Ulrich and Scofield. Fusispira planulata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1078, pi. 81, figs. 26, 27. Trenton (Prosser) : Wykoff, Minnesota; Eagle Point, Iowa. Eolotype Cat. No. 45819, U.S.N.M. 544 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Fusispira psyche (Billings). Subulites psyche Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 188, fig. 169. Fusispira psyche Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070 (gen. ref.). Canadian (Beekmantown): Near St. Antoine, above Quebec, Canada. Fusispira schucherti Ulrich and Scofield. Fusispira schucherti Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076, pi. 80, fig. 1. Black Kiver (Platteville): Beloit, Wisconsin. Fusispira(?) spicula Sardeson. Fusispira(?) spicula Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 336, pi. 6, figs. 10, 11. Black River (Decorah) : Minneapolis, Minnesota. Fusispira subbrevis Ulrich and Scofield. Fusispira subbrevis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076, pi. 80, figs. 11-16. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002b. Trenton (Prosser and Stewartville) : South of Cannon Falls and Stewartville Minnesota; Decorah, Iowa. Cotype.C&t. No. 45820, U.S.N.M. Fusispira subfusiformis (Hall). Murchisonia subfusiformis Hall, Pal. New York, 1, 1847, p. 180, pi. 39, figs. 2a, b; 3d Rep. New York State Cab. Nat. Hist., 1850, p. 179, pi. 4, fig. 2 (doc. ed., p. 171). Chapman, Canadian Jour., n. s., 7, 1862, p. 121, fig. 123; ibid., 8, 1863, p. 199, fig. 190; Expos. Min., Geol. Canada, 1864, p. 124, fig. 123; p. 171, fig. 190. Nicholson, Rep. Pal. Proc. Ontario, pt. 2, 1875, p. 18, fig. 7b. Loxonema subfusiformis D'Orbigny, Prodr. de Pal., 1, 1849, p. 5 (gen. ref.). Emmons, Amer. Geology, 1, pt. 2, 1855, p. 163. Subulites subfusiformis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 946 (gen. ref.). Fusispira subfusiformis Hall, 24th Rep. New York State Cab. Nat. Hist., 1871, p. 229 (gen. ref.). Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 316. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1077, pi. 81, figs. 38, 39. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002c. Trenton: Jefferson and Lewis Counties, New York; Goodhue and Fillmore Coun- ties, Minnesota; Burgin, Kentucky; Canada. Plesiotype.Cat. No. 45821, U.S.N.M. Fusispira sulcata Ulrich. Fusispira sulcata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1077, pi. 81, Fusispira cf. sulcata Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 137, pi. 3, figs. 4, 5. Trenton (Upper): Rogers Gap and Covington, Kentucky. Holotype.Czt. No. 45822, U.S.N.M. igs. 5-7. p. 137, Fusispira terebriformis Hall. Fusispira terebriformis Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 230, pi. 8, fig. 4 (Extract, 1871, p. 6). Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 316. Eden (Economy): Cincinnati, Ohio. FUSISPIRA VENTRICOSA Hall. See Fusispirainflataventricosa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 545 Fusisplra vittata (Hall). Murchisonia vittata Hall, Pal. New York, 1, 1847, p. 181, pi. 39, figs. 3a, b. Loxonema vittata D'Orbigny, Prodr. de Pal., 1, 1849, p. 5 (gen. ref.). Emmons, Amcr. Geology, 1, pt. 2, 1855, p. 163. Fusispira vittata Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 229 (Extract, 1871, p. 5). Trenton: Adams, Jefferson County, New York. GAUROCRINUS Miller. See Reteocrinus Billings. GAUROCRINUS ANGULARIS Miller. See Ptychocrintts parvris. GAUROCRINUS COGNATUS Miller. See Reteocrinus nealli. GAUROCRINUS SFLENDENS Miller. See Ptychocrinus splendens. GAZACRINUS Miller. Genotype: G. inornatus Miller. Gazacrinus Miller, 18th Rep. Geol. Surv. Indiana, 1894, p. 305 (adv. sheets, 1892, p. 49); N. A. Geol. Pal., 1st App., 1892, p. 679; ibid., 2d App., 1897, p. 746. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 78, fig. 38 (includes notes on synonymy). Bather, Treatise on Zool., pt. 3, Echino- derma, London, 1900, p. 188, fig. 119. Springer, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 187. Idiocrinus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 135; Mem. Mus. Comp. Zool. Harvard (N. A. Crin. Camerata), 20, 1897, p. 202. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 188. Zittel, Grundzuge Pal., 1, 1910, p. 161. (Genotype: I. elongatus Wachsmuth and Springer.) Gazacrimis Immaturus (Hall). Thysanocrinus immaturus Hall, Pal. New York, 2, 1852, p. 191, pi. 42, figs. 4a-f. Rhodocrinus (Thysanocrinus) immaturus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 398. Dimerocrinus immaturus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 373 (Rev. Pal., pt. 2, p. 199). Idiocrinus immaturus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 206, pi. 18, figs. lOa-c. Clinton (Rochester): Lockport, New York. Gazacrinus inornatus Miller. Gazacrinus inornatus Miller, 18th Rep. Indiana Dept. Geol. Nat. Res., 1894, p. 303, pi. 5, figs. 9, 10, 15-17 (adv. sheets, 1892, p. 49, pi. 5, figs. 9, 10, 15-17); N. A. Geol. Pal., 1st App., 1892, p. 679, figs. 1232-33. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 188, fig. 119, 1. Idiocrinus elongatus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 136; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 203, pi. 18, figs. 8a-c. Bather, Geol. Mag., dec. 4, 6, 1899, p. 126. Niagaran (Laurel): St. Paul, Shelby County, Indiana. Gazacrinus major Weller. Gazacrinus major Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 78, pi. 3, figs. 1, 2. Niagaran (Racine): Hawthorne, Illinois. Gazacrinus milliganae (Miller and Gurley). Thysanocrinus milliganae Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 8, 1896, p. 51, pi. 3, figs. 23-25. Miller, N. A. Geol. Pal., 2d App., 1897, p. 754, fig. 1403. Niagaran (Brownsport): Decatur County, Tennessee. 84243 Bull. 9215 35 546 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gazacrinus minor Weller. Gazacrinus minor Weller, Bull. CMcago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 80, pi. 3, figs. 3, 4. Niagaran (Racine): Bridgeport, Illinois. Gazacrinus ventricosus (Wachsmuth and Springer). Idiocrinus ventricosus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 137; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 205, pi. 18, fig. 9a, b. Gazacrinus ventricosus Bather, Treatise on Zool., pt. 3, Echinodenna, London, 1900, p. 188, fig. Niagaran (Laurel): St. Paul, Shelby County, Indiana. GEINITZELLA W T aagen and Wentzel. See Batostomella Ulrich. GEISONOCERAS Hyatt. Genotype: Orthoceras rivale Barrande. Geisonoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 275; Zittel-Eastman Textb. Pal., 1, 1900, p. 518; ibid., 2d ed., 1913, p. 598. p. 437, Geisonoceras shumardi (Billings). Orthoceras shumardi Billings, Can. Nat. Geol., 4, 1859, p. 460, fig. 36. Geisonoceras shumardi Ruedemann, Bull. New York State Mus., 90, 1906, p. pi. 12, fig. 4. Orthoceras (Geisonoceras) shumardi Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 48. Chazyan: Mingan Islands, Canada (Mingan); Chazy, New York (Day Point, Crown Point). GEOCRINUS D'Orbigny. See Periechocrinus Austin. GERASAPHES Clarke. Genotype: G. ulrichana Clarke. Gerasaphes Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710. Gerasaphes ulrichana Clarke. Gerasaphes ulrichana Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710, figs. 14-16. Miller, N. A. Geol. Pal., 2d App., 1897, p. 788. Ruedemann, Bull. New York State Mus., 49, 1906, p. 60. Trenton (Upper): Mouth of Licking River, Covington, Kentucky. Holotype Cat. No. 41951, U.S.N.M. GILBERTSOCRINITES AMERicANUs Troost. See Diabolocrinus vesperalis. GILBERTSOCRINITES(?) DUBius Troost. See Periechocrinus dubius. GILBERTSOCRINITES ROEMERI Troost. See Dimerocrinus roemeri. GIRVANELLA Nicholson and Etheridge. Genotype: G. problematica Nicholson and Etheridge. Girvanella Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, p. 23, pi. 9, fig. 24. Nicholson, Geol. Mag., dec. 3, 4, 1888, p. 22. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, pp. 50, 51. Dawson, Canadian Rec. Sci., 7, 1896, p. 212. Strephochetus Seely, Amer. Jour. Sci. Arts, 3d ser., 30, 1885, p. 357; ibid., 32, 1886, p. 31. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 91. Hinde, Geol. Mag., dec. 3, 4, 1887, p. 227. Miller, N. A. Geol. Pal., 1889, p. 165. Seely, Rep. State Geol. Vermont, 3, 1902, p. 156. (Genotype: S. ocellatus Seely.) Girvanella antiqua Dawson. Girvanella antiqua Dawson, Canadian Rec. Sci., 7, 1896, p. 214. Cambrian or Lower Ordovician bowlder: Little Metis, Quebec. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 547 Glrvanella atrata (Seely). Strephochetus atratus Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p. 32; Rep. State Geol. Vermont, 3, 1902, p. 157, pi. 57, fig. 1, pi. 58, fig. 9. Chazyan (Crown Point): McBrides Bay, South Hero, Vermont; Chazy, New York. Glrvanella brainerdi (Seely). Strephochetus Brainerdi Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p. 32; Rep. State Geol. Vermont, 3, 1902, p. 156, pi. 57, figs. 2, 58, figs. 7, 8. Chazyan (Crown Point): Chazy, New York. Observation. See G. ocellata (Seely). GIRVANELLA LABYRiNTHicA Ulrich. See Streptospongia labyrinthica. Glrvanella ocellata (Seely). Strepbochetus ocellatus Seely, Amer. Jour. Sci. Arts, 3d ser., 30, 1885, p. 357, figs. 1-3; Amer. Jour. Sci., 3d ser., 32, 1886, p. 31. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1083. Dawson, Canadian Rec. Sci., 7, 1896, p. 213. Seely, Rep. State Geol. Vermont, 3, 1902, p. 156, pis. 56, 57, figs. 3, 4, 59. Chazyan: Addison County, Vermont; Crown Point, New York (Crown Point); East Tennessee (Lenoir). Observation. Girvanella brainerdi and G. primus Seely are probably synonyms of this species. Girvanella primus (Seely). Strephochetus prunus Seely, Rep. State Geol. Vermont, 3, 1902, p. 160, pi. 57, fig. 5; pi. 53, fig. 6. Chazyan (Crown Point): South Hero and Isle La Motte, Vermont; Chazy, New York. Observation. See G. ocellata (Seely). Glrvanella rlchmondensis (Miller). Stromatocerium richmondense Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 41, pi. 2, figs. 1, la, Ib.-^Tames, J. F., ibid., 9, p. 252. Girvanella richmondense James, J. F., ibid., 14, pt. 1, 1891, p. 51. Strephochetus Richmondense Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p. 33. Miller, N. A. Geol. Pal., 1889, p. 165, fig. 122. Seely, Rep. State Geol. Vermont, 3, 1902, p. 157. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 706, pi. 2, figs. 3-3b. Richmond (Whitewater): Richmond, Indiana. GISSOCRINUS Angelin. Genotype: Actinocrinus arthriticus Phillips. Gissocrinus Angelin, Icon. Crinoid., 1878, p. 10, pi. 3, figs. 1-3, 5b; pi. 29, fig. 75. Zittel, Handb. Pal., 1, 1879, p. 353. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 312 (Rev. Pal., pt. 1, p. 89); ibid., 1886, pp. 115, 151; ibid., 1889, pp. 285, 312. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 21; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 152; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 175, fig. 90; Amer. Geol., 26, 1900, p. 308. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 156. Zittel, Grundzuge Pal., 1, 1910, p. 154. Springer, Zittel- Eastman Textb. Pal., 2d ed., 1913, p. 220. Gissocrinus? problematlcus Rowley. Gissocrinus? problematicus Rowley, Amer. Geol., 34, 1904, p. 277, pi. 16, figs. 37-41. Upper Medinan (Edgewood): Three miles west of Louisiana, Missouri. 548 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. GLADIOLITES VENOSUS Gurley. See Ketiolites geinitzianus venosus. GLAPHURUS Raymond. Genotype: Arionellus pustulatus Walcott. Glaphums Raymond, Annals Carnegie Mus., 3, 1905, p. 357. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 313. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 723. GLAPHURUS PRIMUS Raymond. See Cybeloides primus. Glaphurus pustulatus (Walcott). Arionellus pustulatus Walcott, 31st Ann. Rep. New York State Mus. Nat. Hist., 1879 (1880), (adv. sheets, 1877, p. 15), p. 68. Sao(?) Lamottensis Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 334, pi. 33, figs. 9-11. Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 925, figs. Agraulos (Arionellus) pustulatus Vogdes, Bull. U. S. Geol. Surv., No. 63, 1890, p. 90. Glaphurus pustulatus Raymond, Ann. Carnegie Mus., 3, 1905, p. 357, pi. 14, 4-6, fig. 3; ibid., 7, 1910, p. 74, pi. 18, figs. 9-11; 7th Rep. Vermont State Geol 1910, p. 234, pi. 36, figs. 4-6; pi. 38, figs. 9-11. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 313, figs. 1625, 1626. Perkins, Rep. Vermont State Geol., 8th ser., 1912, pi. 18, figs. 9-11. Chazyan (Crown Point, Valcour): Valcour Island, Sloop Island, Chazy, and Coopersville, New York; Isle La Motte, Vermont. GLASSIA Davidson. Genotype: Atrypa obovata Sowerby Glassia Davidson, Geol. Mag., n. s., 8, 1881, p. 11; Sup. British Dev. and Sil. Brach., Pal. Soc., 1882, p. 38. Davidson, Mon. British Foss. Brach., 5, Sil. Suppl., Pal. Soc., 1882, pp. 86, 116. Miller, N. A. Geol. Pal., 1889, p. 346. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 152, figs. 142-145; 13th Ann. Rep. New York State Geol., 1895, p. 811. Koken, Die Leitfossilien, Leij 1896, p. 238. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 409. GLASSIA HEADI Miller. See Catazyga headi. Glassia romingerl Hall and Clarke. Glassia romingeri Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 153, pi. figs. 32-35; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 363, pi. 8, figs. 33-36; 14th Rep. State Geol. New York for 1894, 1877, p. 363, pi. 9, figs. 33-36. Trenton: Drift near Ann Arbor, Michigan. GLASSIA SCHUCHERTANA Ulrich. See Catazya headi schuchertana. * Glassia variabilis Whiteaves. Glassia variabilis Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F. 1894, p. 42; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 252, pi. 26, figs, 6-6b; p. 273; pi. 26, figs. 3-5; p. 277, pi. 26, figs. 7-9. Niagaran: Winisk, Ekwan, and Fawn rivers, Canada. GLAUCOCRINUS Parka and Alcock. Genotype: G. falconer! Parks and Alcock. Glaucocrinus Parks and Alcock, The Ottawa Nat., 26, 1912, p. 43. Observation. Probably a synonym for Anomalocrinus. Glaucocrinus falconer! Parks and Alcock. Glaucocrinus falconeri Parks and Alcock, The Ottawa Nat., 26, 1912, p. 43, pi. 4, figs. 1, 4. Trenton (Curdsville): Kirkfield, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 549 GLAUCONOME Goldfuss. Genotype: G. disticha Goldfuss. Glauconome Goldfuss, Petrefacta Germanise, 1826, p. 100. Lonsdale, Murchison's Sil. Syst., 1839, p. 677. Phillips, Pal. Foss. Corn wall, Devon, and W. Somer- set, 1841, p. 21. Etheridge, Ann. Mag. Nat. Hist., 4th ser., 20, 1877, p. 32. McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 198. Vine, Rep. 53d Meeting British Assoc. Adv. Sci., 1884, p. 204. Shrubsole and Vine, Quart. Jour. Geol. Soc. London, 1884, 40, p. 329. Goldfuss, Petrefacta, 2d ed., pt. 1, 1862, p. 94. Vine, Rep. 50th Meeting British Assoc. Adv. Sci., 1880, p. 82; Geol. Mag., dec. 2, 7, 1880, p. 507; Rep. 51st Meeting British Assoc. Adv. Sci., 1882, p. 170 Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 159, 160; Zittel-Eastman Textb. Pal., 1913, p. 343. Penniretepora D'Orbigny, Prodr. de Pal., 1, 1850, p. 45. Zittel, Handb. Pal., 1, 1880, p. 603. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 150. Glauconome strigosa (Billings). Helopora strigosa Billings, Catal. Sil. Foss. Anticosti, 1866, p. 37. Nematopora(?) strigosa Ulrich, Amer. Geol., 1, 1888, p. 232, footnote; Geol. Surv. Illinois, 8, 1890, p. 645. Glauconome strigosa Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 161, 162, fig. 81. Species No. 1. Wiman, Bull., Geol. Inst.Univ. Upsala, 5, pt. 2, 1902, p, 181, pi. 6, figs. 29-33. Silurian: Island of Anticosti, Canada (Charleton, Ellis Bay); Borkholm, Esthonia, Russia (Borkholm). GLOSSINA Phillips. See Lingula subgenus Palseoglossa Cockerell. GLOSSINA ACUMINATA Hall and Clarke. See Lingulella (Lingulepis) acuminata sequens. GLOSSINA CYANE Schuchert. See Obolus cyane. GLOSSOCERAS Barrande. Genotype: G. gracile Barrande. Glossoceras Barrande, Syst. Sil. du Centre Boheme, 2, pt. 1, 1867, p. 372; Cephalo- podes: Ext. Syst. Sil. du Centre Boheme, 1877, p. 118. Hyatt, Proc. Bos- ton Soc. Nat. Hist., 22, 1884, p. 279. Zittel, Handb. Pal., 2, 1884, p. 373. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 253. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 23, No. 12, 1890, p. 33. Koken, Die Leitfossilien, Leipzig, 1896, p. 49, fig. 32, fig. 2. Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 516; ibid., 2d ed., 1913, p. 597. Glossoceras desideratum Billings. Glossoceras desideratum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 60. Anticostian (Jupiter River) : Southwest Point, Anticosti. GLOSSOGRAPSUS Emmons. See Glossograptus Emmons. GLOSSOGRAPTUS Emmons. Genotype: G. ciliatus Emmons. Glossograpsus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 108. Glossograptus Zittel, Handb. Pal., 1, 1879, p. 302. Miller, N. A. Geol. Pal., 1889, p. 189. Koken, Die Leitfossilien, Leipzig, 1896, p. 329. Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief. 1897, p. 631. Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. 38. Ruedemann, Mem. New York State Mus., 7, 1904, p. 724; ibid., 11, pt. 2, 1908, pp. 375-379; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 130. 550 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Glossograptus arthracanthus Gurley. Diplograpsus ciliatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 105, pi. 1, fig. 19; Man. Geol., 1860, p. 87, fig. 65. Glossograpsus arthracanthus Gurley, Jour. Geol., 4, 1896, p. 78. Normanskill or Early Trenton: Augusta County, Virginia. Glossograptus ciliatus Emmons. Glossograptus ciliatus Emmons, Amer. Geology, 1, pt. 2, 1856, p. 108, pi. 1, fig. 25. Lapworth, Quart. Jour. Geol. Soc. London, 31, 1875, p. 659, pi. 34, fig. 7; Roy. Soc. Canada Trans., 5, 4th sec., 1887, p. 184; Canadian Geol. Surv. Rep., 2d ser., 3, pt. 1, 1889, p. 95B. Ami, Geol. Surv. Canada Rep., 2d ser., 3, pt. 2, 1889, p. 117K. Gurley, Geol. Surv. Ark., Ann. Rep., 3, 1892, p. 404f. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 379-383, pi. 26, figs. 1-5; pi. 27, figs. 1-4, figs. 324-335. Diplograptus ciliatus Walcott, Alb. Inst. Trans., 10, 1881 (adv. sheets, 1879, p. 34). Glossograptus setaceus Emmons, Amer. Geology, 1, 1856, p. 236, pi. 1, fig. 20. Graptolithus spinulosus Hall, Pal. New York, 3, 1859, p. 517, fig.; New York State Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 60, fig. Glossograptus spinulosus Lapworth, Ann. Mag. Nat. Hist., 5, 1880, p. 283. Dodge, Amer. Jour. Sci., 3d ser., 40, 1890, p. 153. Diplograptus spinulosus Walcott, Trans. Alb. Inst., 10, 1881, p. 35; Bull. Geol. Soc., 1, 1890, p. 339. Chazyan (Normanskill): Glenmont and other localities in slate belt of New York; Alabama; Long Point, St. Anne River, Quebec; Kicking Horse Pass and Dease River, British Columbia; Arkansas; Maine; North Wales. Glossograptus ciliatus debilis Ruedemann. Glossograptus ciliatus var. debilis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 384, pi. 26, figs. 6, 7. Chazyan (Normanskill) : Mount Moreno, near Hudson, New York. Glossograptus ciliatus horridus Ruedemann. Glossograptus ciliatus Emmons mut. horridus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 383, 384, pi. 26, figs. 8, 9; pi. 27, fig. 5. Canadian: Summit, Nevada. Holotype and paratype. Cat. No. 54254, U.S.N.M. GLOSSOGRAPTUS ECHINATUS Ruedemann. See Glossograptus hystrix. GLOSSOGRAPTUS? EUCHARIS Ruedemann. See Lasiograptus (Thysanograptus) eucharis. Glossograptus hystrix Ruedemann. Glossograptus sp. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 571. Glossograptus hystrix Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 724, 725, pi. 16, figs. 27-29, text fig. 101. Glossograptus echinatus Ruedemann, Mem. New York State Mus., 7, pt. 1, pp. 725-726, pi. 16, figs. 30-32, fig. 102. Canadian: Deepkill, Rensselaer County, and Mount Moreno, near Hudson, N< York (Deepkill, Diplograptus dentatus zone) ; Arkansas. Glossograptus (Orthograptus) quadrimucronatus (Hall). Graptolites dentatus Vanuxem, Geol. New York, 3d Dist., 1842, p. 57, fig. 2. Emmons, Geology New York, 2d Dist., 1842, p. 279, fig. 2. Hall, ibid., 4th Dist., 1843, p. 29. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 551 Glossograptus (Orthograptus) quadrimucronatus Continued. GraptolithiiP pristis (in part) Hall, Pal. New York, 1, 1847, p. 265, pi. 57, figs. la-k. Diplograptus pristis Ruedemann, Amer. Jour. Sci., 3d ser., 49, 1895, p. 453. Wiman, Bull. Geol. Inst. Upsala, 5, 1895, p. 69.~T6rnquist, Zool. Centralbl. 4, 1897, p. 4. Graptolithus quadrimucronatus Hall, Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 144, pi. 13, figs. 1-10; New York State Cab. Nat. Hist., 20th Ann. Rep. 1868, pi. 3, figs. 1-5; rev. ed., 1870, p. 230; p. 224. White, U. S. Geog. Surv. West 100th Merid., Wheeler's Rep., 4, Pal., 1877, p. 65, pi. 4, figs, la-b. Walcott, Trans. Alb. Inst., 10 (adv. sheets, 1879, p. 35), 1881, p. 4 (loc. occ.). Diplograptus quadrimucronatus Nicholson, Geol. Mag., 4, 1867, p.- Ill, pi. 7, figs. 1-8. Lapworth, Geol. Mag., 6, 1877, p. 133, pi. 6, fig. 20; Belfast Nat. Field Club, Rep. and Proc., 1, 1876, App. 1877, p. 133, pi. 6, fig. 20. Linnarsson, Sver. Geol. Und., ser. C, No. 41, 1879, p. 18. Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 359. Tullberg, Sver. Geol. Und., ser. C, No. 41, 1880, p. 18; ibid., No. 50, 1882, p. 18. Ruedemann, Bull. New York State Mus., 42, 1901, p. 528. Diplograptus (Orthograptus) quadrimucronatus T. S. Hall, Geol. Surv. Victoria Rec., 1, pt. 4, 1906, p. 275, pi. 34, figs. 10, 11. Orthograptus quadrimucronatus Ami, Can. Rec. Sci., 1893, 5, pp. 180, 234; Geol. Surv. Canada, Summ. Rep., 1904, 1905, p. 12. Roemer and Freeh, Leth. geog., 1 Theil, Leth Pal., 1, 3 Lief., 1897, p. 633. Glossograptus (Orthograptus) quadrimucronatus Ruedemann, Mem. New York State Mus., 2, pt. 2, 1908, pp. 385-392, fig. 336 (see pi. 26, figs. 10-15; pi. 27, figs. 6, 7). Orthograptus amii Lapworth, Can. Surv. Ann. Rep., 1887, pp. 15K, 24K. Diplograptus foliaceus (in part) Ruedemann, New York State Geol. Ann. Rep. for 1894, 1895, pi. 1, figs. 1, 5, 8, 9; pi. 2, fig. 6; pi. 3, figs. 1-26; Amer. Nat., 32, 1898, p. 6; Mem. New York State Mus., 7, 1904, p. 528, fig. 9. Diplograptus aff. whitfieldi Roemer and Freeh, Leth. Pal., 1, 1897, pi. A, figs. Ib, Ic. Trenton: Lake St. John, Quebec, Montreal, north shore Lake Huron and Ottawa (Colling wood), and in belt girdling the Adirondacks; Great Britain (Hartfell); Scandinavia; Australia. Plesiotype.Ca,t. No. 8557, U.S.N.M. Glossograptus (Orthograptus) quadrimucronatus approximatus Ruedemann. Glossograptus quadrimucronatus var. approximatus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 392, 393, pi. 26, figs. 10-15; pi. 27, figs. 6, 7, fig. 337. Trenton (Canajoharie): Dolgeville, Mechanicsville, etc.. New York. Glossograptus (Orthograptus) quadrimucronatus cornutus Ruedemann. Glossograptus quadrimucronatus var. cornutus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 393, 394, pi. 27, figs. 8-10, figs. 338-342. Trenton (Canajoharie): Rural cemetery, Albany, New York. Glossograptus (Orthograptus) quadrimucronatus postremus Ruedemann. Glossograptus quadrimucronatus mut. postremus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 394, pi. 26, fig. 16, fig. 343. Trenton (Canajoharie): Waterford, Frankfort, etc., New York. GLOSSOGRAPTUS SETACEUS Emmons. See Glossograptus ciliatus. GLOSSOGRAPTUS SPINULOSUS Lapworth. See Glossograptus ciliatus. u 552 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Glossograptus whitfleldi (Hall). Graptolithus whitfieldi Hall, Pal. New York, 3, 1859, p. 516, fig. 1; New York State Cab. Nat. Hist., 13th Rep., 1860, p. 60, fig. 1; Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 31, fig. 29; p. 36, fig. 31; non pi. B, figs. 6-11; New York State Cab. Nat. Hist., 20th Rep., 1868, p. 199, fig. 31; p. 205, fig. 33; pi. 1, figs. 6-11; pp. 230, 236, 224. Diplograpsus whitfieldi Nicholson, Geol. Mag., 4, 1867, 111, pi. 7, figs. 4, 4a. Diplograptus whitfieldi Nicholson, Mon. British Grapt, 1872, p. 54, fig. 23; p. 69, fig. 30b. Lap worth, Cat. West. Scott. Foss., 1876, pi. 2, fig. 45; Belfast Field Club Ann. Rep. Proc., 2d ser., App., 1, pt. 4, p. 134, pi. 6, fig. 21.-r-Zittel, Handb. Pal., 1, 1879, p. 294, fig. 200. Lap worth, Ann. Mag. Nat. Hist., 5th ser., 6, 1880, p. 21. Walcott, Trans. Alb. Inst., 1883, 10 (adv. sheet, 1879, p. 35). Lapworth, Roy. Soc. Can. Proc., Trans., 4, 1886, 184. Ami, Geol. Sur. Can. Rep., ser. 2, 3, pt. 2, 1889, p. 117K. Geinitz, Mitth. K. Min. Geol. praeh., Mus. Dresden, 9, 1890, 35, pi. A, fig. 52. Gurley, Geol. Surv. Arkansas, Rep., 3, 1890, p. 411. Walcott, Geol. Soc. Am. Bull., 1, 1890, 339. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 158. Freeh, Leth. Geog., 1, Theil. Leth. Pal., 1, 1897, p. 631, not fig. 192. Ruedemann, Bull. New York State Mus., 42, 1901, pp. 497, 541. Grabs and Shimer, N. A. Index Fossils, 1, 1906, p. 34. Hoek, Neues Jahrb. Geol. Pal., 14, 1912, p. 233, pi. 13, figs. 2, 3. Diplograptus (Graptolithus) whitfieldi Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 208, figs. Glossograptus whitfieldi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 394-397, pi. 26, fig. 17, figs. 344, 345. Chazyan: Normanskill, Glenmont, Stockport, etc., New York; Canada; Arkansas (Normanskill) ; Great Britain (Glenkiln^: Bolivia. GLYCERITES Hinde. Genotype: G. sulcatus Hinde. Glycerites Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 380. Miller, N. A. Geol. Pal., 1889, p. 518. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 243. Glycerites calceolus Hinde. Glycerites calceolus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 384, pi. 20, fig. 11. Upper Medinan (Cataract): Toronto, Ontario. Glycerites sulcatus Hinde. Glycerites sulcatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 380, pi. 19, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 243, fig. 1528a. Cincinnatian (Pulaski): Toronto, Ontario. Glyceritus sulcatus excavatus Hinde. Glycerites sulcatus var. excavatus, Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 380, pi. 19, fig. 10. Cincinnatian (Pulaski) : Toronto, Ontario. GLYPTASTER Hall. See Dimerocrinus Phillips. GLYPTASTER (EUCRINUS) ANQULARIS Wachsmuth and Springer. See Ptychocrinua parvus. GLYPTASTER ARMOSUS Wachsmuth and Springer. See Siphonocrinus armosus. GLYPTASTER OCCIDENTALLIS var. CREBESCENS Hall. See Dimerocrinus occidentalis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 55S GLYPTOCERAS Focrste. See Cyrtoceras Goldfuss. GLYPTOCRINITES Carpenter. See Glyptocrinus Hall. GLYPTOCRINUS Hall. Genotype: G. decadactylus Hall. Glyptocrinua Hall, Pal. New York, 1, 1847, p. 281. McCoy, British Pal. Rocks, Foss., 1854, p. 56. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 223. Billings, Canadian Nat. Geol., 1, 1856, p. 53; Geol. Surv. Canada, Rep. Progr., 1853- 1856, 1857, p. 256; Geol. Surv. Canada, dec. 4, 1859, p. 55, fig. 18. Shumard, Trans. Acad. Sci, St. Louis, 2, 1866, p. 372. Zittel, Handb. Pal., 1, 1879, p. 374. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 30. Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 246. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 356 (Rev. Pal., pt. 2, p. 182); ibid., 1885, p. 324; ibid., 1887, p. 105; ibid., 1890, p. 353. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 259. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 217-219, 226. Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 25, 1883, p. 255. Carpenter, Phil. Trans. Royal Soc. London, 174, 1884, p. 929. Miller, N. A. Geol. Pal., 1889, p. 247. Dyche, Science, 20, 1892, p. 66. James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, pp. 110, 111. Bather, Treatise on Zool., 1897, p. 161. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 147. Zittel, Grundzuge Pal., 1, 1910, p. 162. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 712. Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p. 552. Springer, Zittel-Eastman Textb. Pal., 2cl ed., 1913, p. 189. Reteocrinus (part) Wachsmuth and Springer, Amer. Jour. Sci., 25, 1883, p. 266. Canistrocrinus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, pp. 310, 316 (Rev. Pal., 3, sec. 1, pp. 88, 94). James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, pp. 104, 105. Zittel, Grundzuge Pal., 1, 1910, p. 161. Glyptocrinites Carpenter, Phil, Trans. Royal Soc. London, 174, 1884, p. 929. GLYPTOCRINUS ANGULARIS Miller and Dyer. See Ptychocrinus parvus. GLYPTOCRINUS ARGUTUS Walcott. See Stelidiocrinus argutus. GLYPTOCRINUS ARMOSA Hall. See Siphonocrinus armosus. GLYPTOCRINUS (EUCALYPTOCRINUS) ARMOSUS McChesney. See Siphonocrinus ar- mosus. GLYPTOCRINUS BAERI Meek. See Xenocrinus baeri. GLYPTOCRINUS BILLING si Miller. See Periglyptocrinus billingsi. GLYPTOCRINUS CARLEYI Hall. See Mariacrinus carleyi. Glyptocrinus circumcarinatus Parks and Alcock. Glyptocrinus circumcarinatus Parks and Alcock, The Ottawa Nat., 26, 1912, p. 45, pi. 4, figs. 2, 3. Trenton (Curdsville) : Kirkfield, Ontario. GLYPTOCRINUS COGNATUS Miller. See Reteocrinus nealli. Glyptocrinus decadactylus Hall. Glyptocrinus decadactylus Hall, Pal. New York, 1, 1847, p. 281, pi. 77, figs, la-f ; pi. 78, figs, la-u. Christy, Letters on Geol., 1848, pi. 1, fig. 10. Yandell, Proc. Amer. Assoc. Adv. Sci., 5, 1851, p. 234. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 821, fig. 622. Hall, 12th Rep. New York State Cab. Nat. Hist., 1860, p. 69. Hall. 24th Rep. New York State Cab. Nat. Hist., 1872, p. 554 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Glyptocrinus decadactylus Continued. 207, fig. 2. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 30, pi. 2, figs. 5a, b. Zittel, Handb. Pal., 1, 1879, p. 375, fig. 262. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 260, fig. 2. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 220, pi. 11, figs, la-c. Roemer, Leth. Geog., 1 Theil, Leth. Pal., Atlas, 1883, pi. 3, fig. 19. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 254, fig. Miller, N. A. Geol. Pal., 1889, p. 247, figs. 313-315. Wach- smuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 270, pi. 20, figs. 4a-e; pi. 21, figs. 4a-b. James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 111. Bather, Geol. Mag., dec. 4, 6, 1899, p. 32, fig. 1; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 119, fig. 25. Hayes and Ulrich, U. S. Geol. Surv., folio 95, illus. sheet, 1903, fig. 16. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 720, pi. 4, fig. 9. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 552, figs. 1882, 1883. Heterocrinus decadactylus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 223. Apiocrinite(?) Anthony, Amer. Jour. Sci. Arts, 35, 1839, p. 360, text fig. Maysville (Fairmount): Cincinnati, Ohio, and vicinity; Indiana; Kentucky. Plesiotypes.C&t. Nos. 35409, 40768, etc., U.S.N.M. ; Geol. Glyptocrinus dyer! Meek. Glyptocrinus dyeri Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 314; Surv. Ohio, Pal., 1, 1873, p. 32, pi. 2, figs. 2a, b. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 222. Dyche, ibid., 15, 1892, p. 101; Science, 20, 1892, p. 66; Amer. Geol., 10, 1892, p. 130. James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 112. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Har- vard, 20, 1897, p. 271, pi. 20, figs, la-c; pi. 21, figs. 3a-c, fig. 6. Springer, Mem. Mus. Comp. Zool., Harvard, 25, No. 2, 1905, pi. 1, fig. 13. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 722, pi. 4, fig. 8. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Plesiotypes.-&t. No. 40762, 40767, U.S.N.M. Glyptocrinus dyeri sublsevis Miller. Glyptocrinus dyeri var. sublsevis Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 103, pi. 3, fig. 2; ibid., 1883, 7, p. 217. Maysville (Corryville): Cincinnati, Ohio, and vicinity. GLYPTOCRINUS DYERI var. SUBGLOBOSUS Meek. See Glyptocrinus subglobosus. Glyptocrinus? flmbriatus Shumard. Glyptocrinus fimbriatus Shumard, lst-2d Ann. Rep. Geol. Surv. Missouri, pt. 2, 1855, p. 194, pi. A, fig. lOa, b. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 227. Upper Medinan (Girardeau): Cape Girardeau County, Missouri. Glyptocrinus? fornshelli Miller. Glyptocrinus fornshelli Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 348, fig. 41; ibid., 6, 1883, p. 227; N. A. Geol., Pal., 1889, p. 248, fig. 316. Keyes, Missouri Geol. Surv., 4, 1894, p. 162. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 276, pi. 20, fig. 3; pi. 21, fig. 5. James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 114. Richmond (Waynesville) : Near Morrow, Ohio. Plesiotype.Cat. No. 40771, U.S.N.M. GLYPTOCRINUS HARRISI Miller. See Compsocrinus harrisi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 555 Glyptocrinus Insperatus Rowley. Glyptocrinus insperatua Rowley, Amer. Geol., 34, 1904, p. 275, pi. 16, figs. 34, 42, 43. Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri. Glyptocrinus Insperatus carinatus Rowley. Glyptocrinus insperatus? var. carinatus Rowley, Amer. Geol., 34, 1904, p. 278, pi. 16, fig. 56. Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri. Glyptocrinus insperatus pentagonus Rowley. Glyptocrinus insperatus var. pentagonus Rowley, Amer. Geol., 34, 1904, p. 276, pi. 16, figs. 35, 36. Upper Medinan (Edgewood) : Near Edgewood, Pike County, Missouri . GLYPTOCRINUS LACUNOSUS Billings. See Archseocrinus lacunosus. Glyptocrinus lib anus Safford. Glyptocrinus Libanus Safford, Geol. Tennessee, 1869, p. 286 (nom. nud.). Stones River: Lebanon, Tennessee. GLYPTOCRINUS MARGINATUS Billings. See Archaeocrinus marginatus. Glyptocrinus mercerensis Miller and Gurley. Glyptocrinus mercerensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 28, pi. 2, fig. 23. Trenton (Curdsville) : Mercer County, Kentucky. GLYPTOCRINUS MIAMIENSIS Miller. See Compsocrinus miamiensis. GLYPTOCRINUS NEALLI Hall. See Reteocrinus nealli. GLYPTOCRINUS NOBILIS Hall. See Siphonocrinus nobilis. Glyptocrinus ornatus Billings. Glyptocrinus ornatus Billings, Geol. Surv. Canada, Rep. Progress for 1853-66, 1857, p. 260; Geol. Surv. Canada, dec. 4, 1859, p. 60, pi. 9, fig. 2a,b. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 225. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 274, pi. 20, fig. 6a, b. Springer, Geol. Surv. Canada, Mem. 15P, 1911, p. 11 (loc. occ.). Trenton (Curdsville): Ottawa and Kirkfield, Ontario. GLYPTOCRINUS PARVUS Hall. See Ptychocrinus parvus. Glyptocrinus? pattersoni Miller. Glyptocrinus pattersoni Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 80, pi. 3, fig. 2, 2a; ibid., 6, 1883, p. 226. Reteocrinus Pattersoni Wachsmuth and Springer, Amer. Jour. Sci. Arts, 25, 1883, p. 266. Canistrocrinus Pattersoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1885, p. 317 (Rev. Pal., pt. 3, sec. 1, p. 95.). James, Jour. Cincin- nati Soc. Nat. Hist., 19, 1897, p. 105. Eden (Economy): Ohio River bank opposite Cincinnati, "Ohio. Glyptocrinus plumosus (Hall). Actinocrinus? plumosus Hall, Nat. Hist. New York Geol., 4, 1843, p. 72. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 303, fig. 5. 556 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Glyptocrinus plumosus Continued. Glyptocrinus plumosus Hall, Pal. New York, 2, 1852, p. 180, pi. 41A, figs. 3a-g. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 157, fig. 52; Bull. New York State Mus., 45, p. 157, fig. 52. Lower Clinton: Near Medina, Reynale's Basin, and Lockport, New York. GLYPTOCRINUS PRISCUS Billings. See Periglyptocrinus priscus. Glyptocrinus quinquepartitus Billings. Glyptocrinus quinquepartitus Billings, Geol. Surv. Canada, dec. 4, 1859, pi. 8, fig. 4a, 4b. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 217. Trenton: Ottawa, Ontario. i Glyptocrinus ramulosus Billings. Glyptocrinus ramulosus Billings, Canadian Nat. Geol., 1, 1857, p. 49, fig. 1; p. 54, fig. 3; p. 55, fig. 4-8; Canadian Jour., n. s., 1, 1856, p. 165; Geol. Surv. Canada, Rep. Progr. for 1853-1856, p. 258; Geol. Surv. Canada, dec. 4, p. 57, pi. 7, figs. 2a-f; pi. 8, figs. la-e. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 224. Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 273, pi. 20, fig. 5a-b. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 552. Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 11 (loc. occ.). Archaeocrinus? ramulosus Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 25, 1883, p. 265. Trenton (Curdsville) : Ottawa and Kirkfield, Ontario; Mercer County, Kentucky. Glyptocrinus? richardsoni Wetherby. Glyptocrinus richardsoni Wetherby, Jour.. Cincinnati Soc. Nat. Hist., 2, 1880, p. 245, pi. 16, fig. 1, la. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 227. Reteocrinus Richardsoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1881, p. 367 (Rev. Pal., pt. 2, p. 193). Canistrocrinus Richardsoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1885, p. 317 (Rev. Pal., pt. 3, sec. 1, p. 95). James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 106. Richmond: Wilmington, Ohio. GLYPTOCRINUS SCULPTUS James. See Rhaphanocrinus sculptus. GLYPTOCRINUS SHAFFERI Miller. See Pycnocrinus shafferi. GLYPTOCRINUS SHAFFERI var. GERMANUS Miller. See Pycnocrinus germanus. GLYPTOCRINUS SIPHONATUS Hall. See Siphonocrinus armosus. Glyptocrinus subglobosus (Meek). Glyptocrinus Dyeri var. subglobosus Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 316; Geol. Surv. Ohio, Pal., 1, 1873, p. 34, pi. 2, fig. 2c. Glyptocrinus subglobosus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 7. Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 223. James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 114. Reteocrinus subglobosus Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 25, 1883, p. 265. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. GLYPTOCRINUS? SUBNODOSUS Walcott. See Rhaphanocrinus subnodosus. GLYPTOCRINUS TYPUS Miller. See Tanaocrinus typus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 557 GLYPTOCYSTIS Angelin. See Cheirocrinus Eichwald. GLYPTOCYSTIS Bather (part). See Glyptocystites Billings. GLYPTOCYSTIS LOGANI Springer. See Cheirocrinus logani. GLYPTOCYSTIS MULTIPORUS Bather. See Glyptocystites multiporus. GLYPTOCYSTITES Billings. Genotype: G. multiporus Billings. Glyptocystites (part) Billings, Canadian Jour. , 2, 1854, p. 215; Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 280. Chapman, Canadian Jour., n. s., 2, 1857, p. 303. Billings, Geol. Surv. Canada, dec. 3, 1858, p. 53. Hall, Pal. New York, 3, 1859, p. 151. Chapman, Expos. Min. Geol. Canada, 1864, p. 109. Miller, N. A., Geol. Pal., 1889, p. 248. Jaekel, Stammes. Pelmat. 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 275. Grabau and Shimer (part), N. A. Index Fossils, 2, 1910, p. 463. Glyptocystis Bather (part), Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 64, fig. 33; Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913, p. 430. GLYPTOCYSTITES Billings (part). See Cheirocrinus Eichwald. GLYPTOCYSTITES GRACILIS Shumard. See Cheirocrinus logani gracilis. Glyptocystites multiporus Billings. Glyptocystites multipora Billings, Canadian Jour., 2, 1854, p. 216, figs. 1-8; Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 281; ibid., dec. 3, 1858, p. 54, pi. 3, fig. la, lc. Chapman, Expos. Min. Geol. Canada, 1864, p. 109. Miller, N. A. Geol. Pal., 1889, p. 249, fig. 317. Jaekel, Stammes. d. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 275, fig. 57, p. 277, pi. 15, fig. 4. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 463, fig. 1770. Callocystis multipora Haeckel, Amphor. u. Cystoideen, 1896, p. 132, pi. 3, figs. 18-20. Glyptocystis multiporus Bather, Treatise on Zool., pt. 3, Echinoderma, 1900, p. 64, fig. 33. Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 45 (loc. occ.). Bather, Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913, p. 430, fig. Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. GLYPTODENDRON Claypole. See Cyrtoceras Goldfuss. GLYPTOGRAPTUS Lapworth. See Diplograptus McCoy. GLYPTORTHIS Foerste. See Hebertella subgenus Glyptorthis. GNORIMOCRINUS Wachsmuth and Springer. Genotype : Taxocrinus expansus Angelin. Gnorimocrinus Wachsmuth and Springer, Proc. Nat. Acad. Philadelphia, Rev. Pal., 1, 1879, p. 50. Bather, Rep. British Assoc. Adv. Sci., 1899, p. 922; Lankester's Treatise on Zool., 3, 1900, p. 189. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 163. Springer, Jour. Geol., 14, 1906, p. 515; Mono. Crin. Flex., Smiths. Inst. (in press); Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 205. Gnorimocrinus cirrifer Springer. Gnorimocrinus cirrifer Springer, Mono. Crin. Flex., Smiths. Inst. (in press). Niagaran (Brownsport) : Decaturville, Tennessee. Gnorimocrinus varians Springer. Gnorimocrinus varians Springer, Mono. Crin. Flex., Smiths. Inst. (in press). Niagaran (Brownsport): Decatur County, Tennessee. 558 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. GOLDIUS Dekoninck. Genotype: Brontes flabellifer Goldfuss. Brontes Goldfuss (not Fabricius), Beit. Petrefact., Nova Acta Physico-Med., 19, 1839, p. 360. Portlock, Rep. Geol. Londonderry, 1843, p. 268. Goldius Dekoninck, Mem. Acad. Sci. Bruxelles, 14, 1841, p. 5. Oehlert, Bull. Soc. d'Etudes Sci. d' Angers, 1885, p. 1. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 720. Bronteus Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 540, 548. Burmeister, Org. derTril., Berlin, 1843, p. 75. Emmrich, Neues Jahrb. f. Min., etc., 1845, p. 42. Beyrich, Ueber einige bohmische Trilobiten, 1845, p. 33. Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847, p. 56, pi. 4, figs. 33, 34. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 777; Syst. Sil. du Centre Boheme, 1, 1852, p. 829. McCoy, British Pal. Rocks Fossils, 1854, p. 179. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 524. Nieszkowski, Archiv. f. Naturk. Liv-, Ehst-u. Kurl., 1, 1857, p. 586. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 56. Kayser, Zeits. d. d. geol. Gesell., 31, 1879, p. 413. Zittel, Handb. Pal., 2, 1885, p. 613. Hall and Clarke, Pal. New York, 7, 1888, p. 25, text fig. p. 26. Miller, N. A. Geol. Pal., 1889, p. 535. Whid- borne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1889, p. 32. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 726. Koken, Die Leitfossilien, Leipzig, 1896, p. 28, fig. 18. Beecher, Amer. Jour. Sci., 4th eer., 3, 1897, p. 104, pi. 3, fig. 21. Clarke, 15th Ann. Rep. New York State Geol., 1898, p. 736. Grabau, Bull. New York State Mus., 45, 1901, p. 226; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 226. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, 1901, pp. 26, 43. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 306. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 720. Goldius acamas (Hall). Bronteus acamas Hall, Adv. Sheets, 18th Rep. New York State Cab. Nat. Hist., 1865, p. 28; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 322, pi. 21, figs. 19-20, p. 393; rev. ed., 1870, p. 422, pi. 21, figs. 19-20, pi. 25, fig. 21. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 232, pi. 20, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 306. Niagaran (Racine): Racine, Wisconsin; Bridgeport and Romeo, Illinois. Goldius aquilonaris (Whiteaves). Bronteus aquilonaris Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 58; Geol. Surv. Canada, Pal. Fose., 3, pt. 4, 1906, p. 267, pi. 42, fig. 2. Niagaran: Ekwan River, Canada. Goldius ekwanensis (Whiteaves). Bronteus Ekwanensis Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 58; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 266, pi. 42, fig. 1. Niagaran: Ekwan River, Canada. Goldius flabellifer (Goldfuss). Brontes flabellifer Goldfuss, Nova Acta Acad. Caes. Leop. Nat.-Cur., 19, pt. 1, 1839, p. 361, pi. 33, fig. 3. Bronteus flabellifer Philips, Pal. Foss. Dev. and Cornw., 1841, p. 131, pi. 57, fig. 254. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 590. Niagaran: Bessels Bay, Arctic America. Goldius insularis (Billings). Bronteus insularis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 66. Anticostian (Chicotte): Southwest Point, Anticosti. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 559 Goldius laphanii (Whitfield). Bronteus laphami Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 88; Geol. Surv. Wisconsin, 4, 1882, p. 310, pi. 22, figs. 1-4. Ohamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Niagaran (Racine): Kewaunee, Wisconsin. Goldius lunatus (Billings). Bronteus lunatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 338; Geol. Canada, Geol. Surv. Canada, 186B, p. 188, fig. 187. Miller, N. A. Geol. Pal., 1889, p. 535, fig. 980. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 725, fig. 43. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 235. Ruedemann, Bull. New York State Mus., 49, p. 65, pi. 4, figs. 10, ll._Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 198, pi. 15, figs. 14-16. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 306, fig. 1017. Trenton: Ottawa, Canada; Wykoff, Minnesota; Lake Winnipeg; Jacksonburg, New Jersey. Goldius niagarensis (Hall). Bronteus? niagarensis Hall, Pal. New York, 2, 1852, p. 314, pi. 70, fig. 3. Grabau, Bull. New York State Mus., 45, 1901, p. 226, fig. 158. Clinton (Irondequoit Rochester): Niagara Falls, Ontario. Goldius occasus (Winchell and Marcy). Bronteus occasus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 104, pi. 3, fig. 12. Niagaran (Racine): Bridgeport, Illinois. GOMPHOCERAS Sowerby. Genotype: Orthoceras pyriforme Sowerby. Gomphoceras Sowerby in Murchison's Sil. Syst., 1839, p. 621. Portlock, Rep. Geol. Londonderry, 1843, p. 381. D'Orbigny, Prodr. de Pal., 1, 1849, pp. 3, 27. Woodward, Man. Mollusca, pt. 1, 1851, p. 89, fig. 51 on p. 90. Bar- rande, Neues Jahrb. f. Min., etc., 1854, p. 10, pi. 1, fig. 9a. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 644. Emmons, Amer. Geology, 1, pt. 2, 1855, pp. 148, 151. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 258, pi. 3, fig. 14; Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 158. Billings, Canadian Nat. Geol., 2, 1857, p. 136, pi. 2, fig. 1. Barrande, Neues Jahrb. f. Min., etc., 1860, p. 653; Syst. Sil. du Centre Boheme, 2, pt. 1, 1867, p. 243. Hall, Pal. New York, 5, pt. 2, 1879, p. 318. Koninck, Ann. d. Mus. Royal d'Hist. Nat. de Belgique, 5, 1880, p. 40. Blake, Mon. British Foss. Cephalopoda, 1882, p. 58. Zittel, Ilandb. Pal., 2, 1884, p. 370. Hyatt, Proc. Boston, Soc. Nat. Hist., 22, 1884, p. 277. Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 470. Miller, N. A. Geol. Pal., 1889, p. 437. Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1890, p. 117. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 211. Koken, Die Leitfossilien, Leipzig, 1896, p. 47, text fig. 31. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 291. Hyatt, Zittel- Eastman Textb. Pal., 1, 1900, p. 532; ibid., 2d ed., 1913, p. 612. Grabau, Bull. New York State Mus., 45, 1901, p. 216; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 216. Jaekel, Zeits. d. d. geol. Gesell., 44, 1902, Protok., pp. 8, 68, 80. Jaekel in Ruedemann, Amer. Geol., 31, 1903, p. 200. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1026. GOMPHOCERAS ANGUSTUM Newell. See Phragmoceras angustum. GOMPHOCERAS CASSINENSE Whitfield. See Cyclostomiceras casstnense. 560 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gomphoceras cincinnatiense Miller. Gomphoceras cincinnatiense Miller, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 19, pi. 4, figs. 1, la, Maysville (Corryville): Cincinnati, Ohio. GOMPHOCERAS CONOIDEUM Whitfield and Hovey. See Discosorus conoideus. Gomphoceras eos Hall and Whitfield. Gomphoceras eos Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 100, pi. 3, fig. 5. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 244. Richmond: Near Dayton, Ohio. Gomphoceras fabcri Miller. Gomphoceras faberi Miller, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 19, pi. 4, figs. 2, 2a. James, J. F., ibid., 8, 1886, p. 244. Maysville (Corryville): Cincinnati, Ohio. GOMPHOCERAS HALLI D'Orbigny. See Orthoceras fusifonne. GOMPHOCERAS HERTZERI Miller. See Hexameroceras hertzeri. Gomphoceras Indianense Miller and Faber. Gomphoceras indianense Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 137, pi. 7, figs. 3-5. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1030, pi. 49, figs. 4-4b. Richmond: Near Versailles, and Madison, Indiana. Gomphoceras lineare Newell. Gomphoceras linearis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, pp. 473, 474, fig. Niagaran: Bridges quarry, Wabash, Indiana. GOMPHOCERAS MARCY^J Winchell and Marcy. See Gomphoceras scriniurn. GOMPHOCERAS MINIMUM Whitfield. See Cyclostomiceras minimum. GOMPHOCERAS MIRUM Barrande. See Pentameroceras minim. GOMPHOCERAS NESTOR Foord. See Phragmoceras nestor. GOMPHOCERAS OBESUM Billings. See Poterioceras obesurn. Gomphoceras ortoni Foerste. Gomphoceras Ortoni Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 533, pi. 33, figs. 8a, b; pi. 36, figs. 7a-c. Upper Medinan (Brassfield): Browns quarry, near Dayton, Ohio. Gomphoceras parvulum Whiteaves. Gomphoceras parvulum Whiteaves, Canadian Rec. Sci., 4, 1891, p. 298, pi. 3, figs. 5, 5a, b; Geol. Surv. Canada, Pal. FOBS., 3, pt. 4, 1906, p. 296, pi. 35, figs. 2, 2a, 2b. Niagaran: Grand Rapids of Saskatchewan, Canada. Gomphoceras powers! J. F. James. Gomphoceras powersi James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 255, pi. 4, fig. 2. Ulrich, Amer. Geol., 1, 1898, p. 325. Black River (Platteville) : Beloit, Wisconsin. Gomphoceras projectum Newell. Gomphoceras projectum Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, pp. 476, 477, figs. Niagaran: Delphi, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 561 Gomphoceras scrinium Hull. Gomphoceras scrinium Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), 18G8, p. 350, pi. 18(9), figs. 1-3; pp. 389, 393; rev. ed., 1868, 1870, p. 410, pi. 18, figs. 1-3. Foord Cat. Foss. Ceph. British Mus., 1, 1888, p. 224. Chamberlin, Geol. Wisconsin, 1, 1883, p. 194, fig. Gomphoceras Marcyae Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 101, pi. 3, fig. 8; p. 109; p. 112. Niagaran (Racine): Chicago, Illinois. GOMPHOCERAS SEPTORIS Hall. See Septameroceras septore. Gomphoceras subgracile Billings. Gomphoceras subgracile Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 311. Silurian: Port Daniel, Gaspe, Canada. Observation. Possibly a species of Septameroceras. Gomphoceras wafoashense Newell. Gomphoceras wabashensis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 470-472, figs. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 476, pi. 20, figs. 3, 4. Niagaran: Delphi and Georgetown, Indiana. Plcsiotypc.Gat. No. 52947, U.S.N.M. GOMPHOCYSTIS Angelin. See Gomphocystites Hall. GOMPHOCYSTITES Hall. Genotype: G. glans Hall. Gomphocystites Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1864), 1868, p. 309; rev. ed.,1870, p. 351. Zittel, Handb. Pal., 1, 1879, p. 415 Miller, N. A. Geol. Pal., 1889, p. 249. Jaekel, Stammes. Pelmat., 1, The- coideau. Cystoidea, Berlin, 1899, p. 419. Zittel, Grnndzuge Pal., 1910, p. 189. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 461. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 156. Gomphocystis Angelin, Icon. Crinoid, 1878, p. 31. Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 115. Bather, Treatise on Zool., pt. 3, Echino- derma, London, 1900, p. 77. Gomphocystites clavus Hall. Gomphocystites clavus Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1864), 1868, p. 310, pi. 12a (1), fig. 3; rev. ed., 1870, p. 353, pi. 12a, fig. 3. Niagaran (Racine): Racine, Wisconsin. Gomphocystites glans Hall. Gomphocystites glans Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, Dec. 1864), 1868, p. 310, pi. 12(3), fig. 14; pi. 12a(l), figs. 4, 5; rev. ed. 1870, p. 352, pi. 12, fig. 14; pi. 12a, figs. 4, 5. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 11, fig. 2a. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 421, pi. 2, figs. 8, 9. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 462, fig. 1768. Niagaran (Racine): Racine, Wisconsin. Gomphocystites indianensis Miller. Gomphocystites indianensis Miller, N. A. Geol. Pal., 1889, p. 249, fig. 319. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 421. Niagaran (Osgood): Jefferson County, Indiana. 84243 Bull. 9215 36 562 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gomphocystites tenax Hall. Gomphocystites tenax Hall, 20th Hep. New York State Cab. Nat. Hist, (extras, 1864), 1868, p. 310, pi. 12(3), fig. 15; pi. 12a(l), figs. 1, 2; rev. ed., 1870, p. 352, pi. 12, fig. 15; pi. 12a, figs. 1, 2. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 11, fig. 3. Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 115, pi. 3, fig. 37. Jaekel, Stammes. Pelmat., 1, Thecoideau. Cystoidea, Berlin, 1899, p. 421. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 77, fig. 48. Niagaran (Lockport): Lockport, New York. GONAMBONITES PLANA var. RETROFLEXA Verneuil. See Clitambonites planus ret- roflexus. Goniatites canadensis Castelnau. Not recognized. Goniatites canadensis Castelnau, Syst. Sil., 1843, p. 34, pi. 11, fig. 7. Ordovician?: Falls of Montmorency River, near Quebec, Canada. Observation. Probably the same as Sinuites cancellatus. GONIOCERAS Hall. Genotype: G. anceps Hall. Gonioceras Hall, Pal. New York, 1, 1847, p. 54. D'Orbigny, Prodr. de Pal., 1, 1849, p. 2. Pictet, Trait6 de Pal., 2d ed., 2, 1854, p. 638. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 148. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 678; p. 786. Hyatt, Science, 3, 1884, p. 124. Zittel, Handb. Pal., 2, 1884, p. 370 Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 288. Miller, N. A. Geol/Pal., 1889, p. 441. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 794. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 322. Ruede- mann, Bull. New York State Mus., 90, 1906, p. 492. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 117. Gonioceras anceps Hall. Gonioceras anceps Hall, Pal. New York, 1, 1847, p. 54, pi. 14, figs. la-d. Chap- man, Canadian Jour., n. s., 8, 1863, p. 20, fig. 130. Roemer, Leth. geog., 1, Leth. pal., Atlas, 1876, pi. 6, fig. 5a. Miller, N. A. Geol. Pal., 1889, p. 441, fig. 742. Keyes, Missouri Geol. Surv., 5, 1894, p. 220. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 117, fig. 1353. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 794, pi. 47, fig. 5. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 324, fig. 49. Orthoceras anceps Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 150, 108a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 541, figs. Ormoceras anceps Chapman, Canadian Jour., n. s., 8, 1863, p. 198, fig. 172; Ex] Min., Geol. Canada, 1864, p. 128, fig. 130; p. 170, fig. 172. Gonioceras hallii Emmons, Amer. Geology, 1, pt. 2, 1855, p. 152, fig. 31; Man. Geol., 1860, p. 96, fig. 85. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 258, fig. Black River: Watertown, etc., New York (Watertown); Ontario; Wiscoi Minnesota; Kentucky; Tennessee. Gonioceras chaziense Ruedemann. Gonioceras chaziense Ruedemann, Bull. New York State Mus., 90, 1906, p. pi. 36, figs. 3, 4. Chazyan (Crown Point) : Near Chazy, New York. GONIOCERAS HALLII Emmons. See Gonioceras anceps. GONIOCERAS LAMBI Whiteaves. See Tripteroceras Iambi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 563 Gonioceras occidentale Hall. Gonioceras occidentalis Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 47. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 74, pi. 12, figs. 1, 2. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 795, pi. 47, fig. 6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 117, fig. 1354. Holtedahl, Vidensk. Skrifter, 1, 1912, p. 9, pi. 3, fig. 1. Black River (Platteville): Wisconsin; Dixon, Illinois; Arctic America. Plesiotype.Csit. No. 46527, U.S.N.M. GONIOGRAPTUS McCoy. Genotype: Didymograptus (Goniograptus) thureaui McCoy. Goniograptus McCoy, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 128. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, p. 265. Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 620, 621. Goniograptus geometricus Ruedemann. Gonigraptus n. sp. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 566. Goniograptus geometricus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 627-630, pi. 7, figs. 5, 10-20, figs. 43-45. Canadian (Deepkill, Didymograptus trifidus zone): Deepkill, Rensselaer County, New York. Observation. Compare Thamnograptus anna. Goniograptus perflexilis Ruedemann. Goniograptus n. sp. Ruedemann New York State Pal., Ann. Rep., 1902, p. 556. Goniograptus perflexilis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 625-627, pi. 6, figs. 16-18; pi. 7, figs. 1-4, 6-9, figs. 39-42. Canadian: Deepkill and Mount Moreno, New York (Deepkill, Tetragraptus and Didymograptus zones); Point Levis, Quebec (Levis, Didymograptus and Diplograptus dentatus zones). Goniograptus thureaui (McCoy). Didymograptus (Goniograptus) thureaui McCoy, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, pp. 128-130. Graptolites (Didymograptue) thureaui McCoy, Geol. Surv. Victoria, Prodr. Pal., Victoria, dec. 5, 1877, p. 39. Goniograptus thureaui Ami, Geol. Surv. Canada, Rep., 2d ser., 3, pt. 2, 1889, p. 116k. Ruedemann, Bull. New York State Mus., Pal. Ann. Rfep., 1902, pp. 556, 565, 576-92, figs. 1-11; ibid., Mem. 7, pt. 1, 1904, pp. 621-624, pi. 6, figs. 1-15, figs. 37, 38. Dichograptus (Clonograptus, Goniograptus) thureaui Freeh, Leth. Pal., 1, Lief. 3, 1897, p. 600, fig. 165. Dichograptus (Goniograptus) thureaui Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 29, fig. 41d, 42. Goniograptus thureau var. selwyni Ami, Can. Rec. Sci., 3, 1889, p. 422-428, p. 502, 503, figs. 1, 2. Goniograptus thureaui var. postremus Ruedemann, Bull. New York State Mus., 52, 1902, p. 587, fig. 14. Lower Ordovician: Sandhurst, Victoria; Point Levis, Quebec (Levis, Clono- graptus zone); Deepkill, Rensselaer County, New York (Deepkill, Tetra- graptus and D. bifidus zones). GONIOGRAPTUS THUREAUI var. POSTREMUS Ruedemann. See Goniograptus thureaui. GONIOGRAPTUS THUREAUI var. SELWYNI Ami. See Goniograptus thureaui. 564 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. GONIOPHOBA Phillips. Genotype: G. cymbiformis Sowerby. Goniophora Hall, Pal. New York, 5, pt. 1, Lam., 2, 1885, p. 13. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 213. Miller, N. A. Geol. Pal., 1889, p. 481. Whidborne, Mon. Dev. Fauna South England, 2, Pal. Soc., 1892, p. 16, Koken, Die Leitfossilien, Leipzig, 1896, p. 525. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 251. Hind, Mon. British Carb. Lamell., 1, Pal. Soc., 1899, p. 339. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518. Goniophora bellula Billings. Goniophora bellula Billings, Pal. Foss. Geol. Surv. Canada, 2, pt. 1, 1874, p. 136, pi. 8, fig. 9. Silurian: Arisaig, Nova Scotia. Goniophora carinata (Hall). Modiolopsis carinatus Hall, Pal. New York, 1, 1847, p. 160, pi. 35, figs..lla-c. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 173, fig. 159. Lesley, Geol. Surv. Pennsylvania, Hep. P 4, 1889, p. 407, fig. Goniophora carinata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 504 (gen. ref.). Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 173, pi. 11, fig. 23. Cypricardia americana D'Orbigny, Prodr. Pal., 1, 1850, p. 121. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 174, pi. 14, fig. 11. Trenton: Middleville, etc., New York; New Jersey; etc. Goniophora consimilis Billings. Goniophora consimilis Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, 135, pi. 8, fig. 8. Silurian: Arisaig, Nova Scotia. Goniophora crassa Whiteaves. Goniophora crassa Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 9 pi. 2, figs. 3, 3a-c; ibid., pt. 2, 1895, p. 67 (loc. occ.). Niagaran (Guelph): Durham, Ontario. ' Goniophora dubia (Hall). Modiolopsis? dubius Hall, Pal. New York, 3, 1859, p. 264, pi. 49, figs. 2a-e. Goniophora dubia Whitfield, Ann. New York Acad. Sci., 5, 1891, p. 514, pi. 5, figs. 24-26; Geol. Surv. Ohio, Pal., 7, 1893, p. 415, pi. 1, figs. 24-26. Sherzer, Michigan Geol. Surv., 7, pt. 1, 1900, p. 224, pi. 17, figs. 24-26. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 519, fig. 697. Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 168, pi. 30, figs. 24-26. Cayugan (Manlius): Winfield, Herkimer County, New York. Lower Monroan: Monroe County, Michigan; Put-in-Bay, Lake Erie. Goniophora mediocris Billings. Goniophora mediocris Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, 137, pi. 9, fig. 1. Silurian: Arisaig, Nova Scotia. Goniophora speciosa Hall. Goniophora speciosa Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., p. 317, pi. 27, figs. 26, 27; Trans. Albany Inst., 10, 1883, p. 73. Niagaran (Waldron): Waldron, Indiana. Goniophora transiens Billings. Goniophora transiens Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, 134, pi. 8, fig. 7. Silurian (Stonehouse): Arisaig, Nova Scotia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 565 CONIOPHYLLUM Edwards and Haime. Genotype: Turbinolia pyramidalis Hisinger. Goniophyllum Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 (Arch. Mus. Hist. Nat., 5 ), pp. 169, 404. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 456. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 397. Lindstrom, Geol. Mag., 3, 1866, pp. 357, 411. Salter, Cat. Camb. Sil. Foss., 1873, p. 114. Dybowski, Archiv. f. Natur. Liv.-Ehst-und Kurl., 5, 1873, p. 340. Zittel, Handb. Pal., 1, 1879, p. 235. Lindstrom, Blhang till K. Sv. Vet.-Akad. Handl., 7, 1882, p. 42. Roemer, Leth. Geog., pt. 1, Leth.Pal., 1883, p. 406. Sherzer, Amer. Geol., 7, 1891, pp. 296-301. Koken, Die Leit- fossilien, Leipzig, 1896, p. 313. Weller, Jour. Geol., 6, 1898, p. 700; Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 20; Zittel-Eastman Textb. Pal., 1, 1900, p. 79; ibid., 2d ed., 1913, p. 87. Goniophyllum pyramid ale (Hisinger). Turbinolia turbinata var. pyramidalis Hisinger, Tableau des petrif. de Suede, 1st ed., 1829, p. 22. Turbinolia pyramidalis Hisinger, Tableau des petrif. de Suede, 2d ed., 1831, p. 26; Lethsea, 1838, p. 101, pi. 28, fig. 12. Goniophyllum pyramidale Milne-Edwards and Haime, Polypiers fossiles, 1851, p. 404, pi. 2, figs. 4, 4a. Lindstrom, Ofvers. Vet.-Akad. Forhandl., 1865, p. 271, pi. 30, figs. 1-9; Bihang till K. Sv. Vet.-Akad., Handl., 7, 1882, p. 43, pis. 1, 5, 6, 7, 8, 9 (see for complete bibliography). Winchell, Amer. Geol., 6, 1890, p. 326. Weller and Davidson, Jour. Geol., 4, 1896, p. 170, pi. 6, figs. 6-8. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 19, fig. 5. Cyathophyllum tetragonum Quenstedt, Handb. der Petrefaktenkunde, Ab. 1, 6, 1879, p. 407, pi. 156, figs. 82-85. Silurian: Island of Gotland; England; La Motte, Dubuque County, Iowa (Niagaran). GONIOSTROPHA (part) (Ehlert. See Hormotoma Salter. GONIOTRYPA Ulrich. Genotype: G. bilateralis Ulrich. Goniotrypa Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 40. Miller, N. A. Geol. Pal., 1889, p. 307. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 389. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 545. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49. Goniotrypa bilateralis Ulrich. Goniotrypa bilateralis Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 41, figs. 1-3, pi. 9, fig. 1. Miller, N. A. Geol. Pal., 1889, fig. 481 (p. 307). Whiteaves, Pal. Foss., 3, 1895, p. 118. Richmond: Stony Mountain, Manitoba (Stony Mountain); Island of Anticosti (Charleton). Cotypes. Cat. No. 43475, U.S.N.M. GONIURUS Raymond. Genotype: Bathyurus perspicator Billings. Goniurus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 65. Goniurus caudatus (Billings). Bathyurus caudatus Billings, Pal. Foas., 1, Geol. Surv. Canada, 1865, p. 261, fig. 245. Goniurus caudatus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 66. Canadian: Port aux Choix, Newfoundland (Quebec G., H.); Fort Cassin, Ver- mont; and Ticonderoga, New York (Beekmantown). 566 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Goniums elongatus Raymond. Goniums elongatus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 66, pi. 7, figs. 11, 12. Canadian: Beekmantown) : Philipsburg and St. Armond, Missisquoi County, Quebec. Goniurus perspicator (Billings). Bathyurus perspicator Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 205, fig. 191. Goniurus perspicator Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 65, pi. 7, fig. 10. Canadian (Beekmantown): St. Antoine, above Quebec, Canada. GORGONIA Hall. See Chasmatopora Eichwald. Gorgonia anticorum Castelnau. Not recognized. Gorgonia anticorum Castelnau, Syst. Sil., 1843, p. 50, pi. 24, fig. 1. Silurian: Lake Huron. GORGONIA ASPERA Hall. See Chasmatopora aspera. GORGONIA FLABELLIFORMIS Eichwald. See Dictyoiiema flabelliforme. Gorgonia infundibuliformis Eaton. Not recognized. Gorgonia infundibuliformis Eaton, Geol. Textbook, ed. 2, 1832, p. 43, pi. 4, fig. 46. GORGONIA PERANTIQUA Hall. See Protocrisina perantiqua. GORGONIA PROAVUS Eichwald. See Graptodictya proava. GORGONIA? RETEFORMIS Hall. See Dictyonema retiforme. Gorgonia siluriana Castelnau. Not recognized. Gorgonia siluriana Castelnau, Syst. Sil., 1843, p. 50. Silurian: Lake Huron. GOTLANDIA Ball. See Trimerella Billings. GRAMMTSIA Verneuil. Genotype: G. hamiltonensis Verneuil. Grammysia Verneuil, Bull. Geol. Soc. France (2) 4, 1847, p. 696. Pictet, Traite de Pal., 2d ed., 3, 1855, p. 530. Barrande, Syst. Sil. du Centre Boheme, 6, 1881, p. 85; Acephales: Ext. Syst. Sil. du Centre Boheme, 1881, p. 135. Zittel, Handb. Pal., 2, 1881, p. 128. Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 30. Miller, N. A. Geol. Pal., 1889, p. 482. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 207. Koken, Die Leitfossilien, Leipzig, 1896, p. 525. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 260. Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 439. Grammysia acadica Billings. Grammysia Acadica Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 140, pi. 9, fig. 4, 4a. Silurian (Moydart, Stonehouse) : Arisaig, Nova Scotia. Grammysia? arctica Bassler (new name). Grammysia? triangulata Holtedahl (not Williams, 1913), 2d Arct. Exp. Fram, 1898-1902, No. 32, 1914, p. 28, pi. 8, fig. 8. Helderbergian (Lower beds): Southwestern Ellesmereland, Arctic America. GRAMMYSIA CASWELLI Foerste. See Cuneamya? caswelli. GRAMMYSIA CINGULATA TRIANGULATA McCoy. See Grammysia triangulata. BIBLIOGRAPHIC LIST OF <;KM.i;\ VXD SPECIES. 567 GRAMMYSIA NEQLECTA Hall and Whitfield. See Cuneamya nogli>< in. Grammysia pembrokensls Williams. Grammysia pembrokensis Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 344, pi. 31, fig. 2. Silurian (Pembroke): Pembroke, Washington County, Maine. Holotype. Cat. No. 58968, U.S.N.M. Grammysia remota Billings. Grammysia remota Billings, Pal. FOBS., Geol. Surv. Canada, 2, pt. 50, 1874, p. 139, pi. 9, fig. 2. Silurian: Arisaig, Nova Scotia. Grammysia rustica Billings. Grammysia rustica Billings, Pal. FOBS., Geol. Surv. Canada, 2, pt. 1, 1874, p. 139, pi. 9, fig. 3. Silurian (Stonehouse): Arisaig, Nova Scotia. Grammysia triangulata (Salter). Orthonota triangulata Salter, Mem. Geol. Surv. Great Britain, 1848, 2, pt. 1, Pal. app., p. 361, pi. 18, fig. 7. Grammysia cingulata var. triangulata McCoy, British Pal. Foss., 1855, p. 280, pi. Ik, fig. 28. Grammysia triangulata Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 345, pi. 31, fig. 17. Silurian: Great Britain; Long Cove, Washington County, Maine (Pembroke). Plesiotype.C&t. No. 58970, U.S.N.M. GRAMMYSIA? TRIANGULATA Holtedahl. See Grammysia arctica. GRAPTODICTYA Ulrich. Genotype: Ptilodictya perelegans Ulrich. Graptodictya Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 151, 165. Miller, N. A. Geol. Pal., 1889, p. 307. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 393. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 14. Simpson, 14th Ann. Rep. New York State Geol. for 1894, 1897, p. 541. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 46. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 747. Baesler, Bull. U. S. Nat. Mus., 77, 1911, p. 121. GRAPTODICTYA NITIDA Ulrich. See Graptodictya perelegans. Graptodictya perelegans (Ulrich). Ptilodictya perelegans Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 94, pi. 4, figs. 16, 16a. Graptodictya perelegans Ulrich, ibid., 5, 1882, p. 165, pi. 8, fig. 5. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 122, fig., p. 121. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 280. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 836, pi. 29, fig. 8. Graptodictya nitida Ulrich, Jour. Cincinnati Soc. Nat. Hist, 5, p. 166, pi. 7, figs. 8, 8a. Richmond (Waynesville, Liberty): Clarkesville, etc., Ohio; Indiana. Holotypes Cat. Nos. 43274, 43661, U.S.N.M. Graptodictya proava (Eichwald). Gorgonia proavus Eichwald, Urwelt Russlands, 2, 1840, p. 44, pi. 1, fig. 5. Coscinium proavus Eichwald, Leth. Rossica, 1, 1860, p. 398. Coscinium proavium Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 158, fig. 122. 568 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Graptodictya proava Continued. Graptodictya proava Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 123-126, figs. 49, 50; pi. 8, fig. 2; pi. 9, figs. 1-6. Clathropora flabellata Hall, Foster and Whitney's Rep. Geol. Lake Superior Land Dist., pt. 2, 1851, p. 207, pi. 24, figs. 2a, b. Stictoporella flabellata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 416. Stictoporella cribrosa Sardeson (not Ulrich), Jour. Geol., 9, 1901, p. 157, pi. B, figs. 7-9. Middle Ordovician: Uxnorm, Esthonia, Russia (Wassalem); Kenyon, Minnesota, and Escanaba River, Michigan (Trenton). Plesiotype. Cat. No. 57216, U.S.N.M. GRAPTOLITES (DIDYMOGRAPSUS) BRYONOIDES McCoy. See Tetragraptus serra. GRAPTOLITES (DIDYMOGRAPSUS) CADUCEUS McCoy. See Didymograptus (Isograptus) caduceus. GRAPTOLITES DENTATUS Vanuxem. See Glossograptus (Orthograpttis) quadrimu- cronatus. GRAPTOLITES (DIDYMOGRAPTUS) EXTENSUS McCoy. See Didymograptus extensus. GRAPTOLITES (DIDYMOGRAPTUS) FRUTICOSUS McCoy. See Tetragraptus fruticosus. GRAPTOLITES (DIDYMOGRAPTUS) LOGANI McCoy. See Loganograptus logaiii. GRAPTOLITES NILSSONI Harkness. See Monograptus gregarius. GRAPTOLITES (DIDYMOGRAPTUS) OCTOBRACHIATUS McCoy. See Dichograptus octo- brachiatus. GRAPTOLITES PRIODON of authors. See Monograptus priodon. GRAPTOLITES PRISTIS (part) of authors. See Diplograptus foliaceus. GRAPTOLITES (DIDYMOGRAPSUS) QUADRIBRACHIATUS McCoy. See Tetragraptus quadribrachiatus. GRAPTOLITES (DIDYMOGRAPTUS) THUREAUI McCoy. See Goniograptus thureaui. GRAPTOLITES VENOSUS Hall. See Retiolites geinitzianus venosus. GRAPTOLITHUS ABNORMIS Hall. See Clonograptus abnomiis. GRAPTOLITHUS ACUTUS Hopkinson. See Monograptus intermedius. GRAPTOLITHUS ALATUS Hall. See Tetragraptus alatus. GRAPTOLITHUS AMPLEXICAULE Hall. See Diplograptus (Glyptograptus) amplexi- caule. GRAPTOLITHUS ANGUSTIFOLIUS Hall. See Diplograptus (Glyptograptus) angustifolius. GRAPTOLITHUS ANNECTANS Walcott. See Leptograptus annectans. GRAPTOLITHUS ARCUATUS Hall. See Didymograptus arcuatua. GRAPTOLITHUS ARUNDINACEUS Hall. See Mastigograptus aruiidinaceus. GRAPTOLITHUS BICORNIS Hall. See Climacograptus bicornis. GRAPTOLITHUS BIFID us Hall. See Didymograptus bilidus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 569 GRAPTOLITHUS BIGSBYI Hall. See Tetragraptus similis. GRAPTOLITHUS BRYONOIDES Hall. See Tetragraptus amii and T. serra. GRAPTOLITHUS CADUCEUS Chapman. See Didymograptus (Isograptus) caduceus. GRAPTOLITHUS CLINTONENSIS Hall. See Monograptus clintonensis. GRAPTOLITHUS CONSTRICTUS Hall (part) . See Didymograptus extensus and D. hirundo. GRAPTOLITHUS CONVOLUTUS Carruthers. See Monograptus convolutus. GRAPTOLITHUS CRUCIFER Hall. See Tetragraptus crueller. GRAFTOLITHUS DENTATUS D'Orbignj'. See Diplograptus foliaceus. GRAPTOLITHUS DENTICULATUS Hall. See Tetragraptus denticulatus. GRAPTOLITHUS DIVARICATUS Hall. See Dicellograptus divaricatus. GRAPTOLITHUS DIVERGENS Hall. See Amphigraptus divergens. GRAPTOLITHUS ENSIFORMIS Hall. See Trigonograptus ensiformis. GRAPTOLITHUS EXTENSUS Hall. See Didymograptus extensus. GRAPTOLITHUS EXTENUATUS Hall. See Didymograptus extenuatus. GRAPTOLITHUS FLACCID us Hall. See Leptograptus flaccid us. GRAPTOLITHUS FLEMINGII Salter. See Monograptus flemingii. GRAPTOLITHUS (DICHOGRAPTUS) FLEXILIS Hall. See Clonograptus flexilis. GRAPTOLITHUS FOLIACEUS Murchison. See Diplograptus foliaceus. GRAPTOLITHUS FOLIUM Salter. See Diplograptus foliaceus. GRAPTOLITHUS FRUTICOSUS Hall. See Tetragraptus fruticosus. GRAPTOLITHUS FURCATUS Hall. See Dicranograptus furcatus. GRAPTOLITHUS GRACILIS Hall. See Nemagraptus gracilis and N. gracilis surcularis. GRAPTOLITHUS HEADI Hall. See Tetragraptus headi. GRAPTOLITHUS (DIPLOGRAPTUS) HYPNIFORMIS White. See Diplograptus foliaceus. GRAPTOLITHUS INDENTUS Hall. See Didymograptus indentus. GRAPTOLITHUS INTERMEDIUS Carruthers. See Monograptus intermedius. GRAPTOLITHUS LAEVIS Hall. See Phycograptus laevis. GRAPTOLITHUS LOGANI Hall. See Loganograptus logani. GRAPTOLITHUS MARCIDUS Hall. See Cryptograptus tricornis. GRAPTOLITHUS MILESI Hall. See Glonograptus milesi. GRAPTOLITHUS MUCRONATUS Hall. See Lasiograptus mucronatus. GRAPTOLITHUS MULTIFASCIATUS Hall. See Ampliigraptus multifasciatus. GRAPTOLITHUS MULTIFASCICULATUS Lesley. See Amphigraptus multifasciatus. GRAPTOLITHUS NITIDUS Hall. See Didymograptus nitidus. 570 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. GRAPTOLITHUS OCTOBRACHIATUS Hall. See Dichograptus octobrachiatus. GRAPTOLITHUS OCTONARIUS Hall. See Dichograptua octonarius. GRAPTOLITHUS PATULUS Hall. See Didymograptus patulus. GRAPTOLTTHUS PENNATULUS Hall. See Didymograptus pennatulus. GRAPTOLITHUS (DIPLOGRAPTUS) PEOSTA Hall. See Diplograptus peosta. GRAPTOLITHUS PRIODON Barrande. See Monograptus priodon. GRAPTOLITHUS PRIODON Chapman. See Monograptus clintonensis. GRAPTOLITHUS PRISTINIFORMIS Hall. See Diplograptus dentatus. GRAPTOLITHUS PRISTIS Hall (part). See Diplograptus foliaceus, D. foliaceus acutus, D. foliaceus incisus, Glossograptus (Orthograptus) quadrimucronatus, and Diplo- graptus peosta. GRAPTOLITHUS PUTILLUS Hall. See Climacograptus (Mesograptus) putillus. GRAPTOLITHUS QUADRIBRACHIATUS Hall. See Tetragraptus quadribrachiatua. GRAPTOLITHUS QUADRIMUCRONATUS Hall. See Glossograptus (Orthograptus) quadri- mucronatus. GRAPTOLITHUS RAMOSUS Salter. See Dicranograptus rectus. GRAPTOLITHUS (DIPLOGRAPSUS) RAMOSUS Chapman. See Dicranograptus ramosus. GRAPTOLITHUS RAMULUS Hall. See Temnograptus? ramulus. GRAPTOLITHUS (CLIMACOGRAPTUS) RAMULUS White. See Dicranograptus nicholsoni whitianus. GRAPTOLITHUS RICHARDSONI Hall. See Holograptus? richardsoni. GRAPTOLITHUS RIGIDUS Hall. See Clonograptus rigidus. GRAPTOLITHUS SAGITTARIUS Hisinger. See Didymograptus- sagitticaulis. GRAPTOLITHUS (PRIONODUS) SEDGWICKII DISTANS. See Monograptus distans. GRAPTOLITHUS (MONOPRION) SERRATULUS Hall. See Didymograptus serratulus. GRAPTOLITHUS SEXTANS Hall. See Dicellograptus sextans and D. sextans exilis. GRAPTOLITHUS SIMILIS HALL. See Didymograptus similis. GRAPTOLITHUS SPINULOSUS Lapworth. See Glossograptus ciliatus. GRAPTOLITHUS SUBTENUIS Hall. See Didymograptus subtenuis. GRAPTOLITHUS TENTACULATUS Hall. See Retiograptus tentaculatus. GRAPTOLITHUS TENUIS Portlock (part). See Leptograptus annectans and Didymo- graptus subtenuis. GRAPTOLITHUS WHITFIELDI Hall. See Glossograptus whitfieldi and Lasiograptuf bimucronatus. GRAPTOLITHUS WHITIANUS Miller. See Dicranograptus nicholsoni whitianus. GRAPTOPORA SOCIALIS Salter. See Dictyonema flabelliforme. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 571 GRAPTOSPONGIA Ruedemann. Genotype: G. pusilla Ruedomann. Graptospongia Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485. Graptospongia pusilla Ruedemann. Graptospongia pusilla Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485, figs. 467, 468. Chazyan (Normanskill) : Schuylerville, Saratoga County, New York. GREENFIELDIA Grabau. See Hindella subgenus Greenfieldia. GYPIDIA UNGUIFORMIS Ulrich. See Conchidium unguiforme. GYPIDULA Dalman. See Conchidium Linnaeus. GYPIDULA Hall. Genotype: Pentamerus occidentalis Hall. Gypidula Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal. New York, 4, 1867, pp. 373, 380. Zittel, Handb. Pal., 1, 1880, p. 694. Wal- cott, Mon. U. S. Geol. Surv., 8, 1884, p. 161. Miller, N. A. Geol. Pal., 1889, p. 346. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 322. Sieberella (Ehlert, Fischer's Man. Conch., 1887, p. 1311. Gypidula and Sieberella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 245; 13th Ann. Rep. New York State Geol., 1895, pp. 845, 846. Gypidula (Sieberella) coeyinanensis corriganensis Maynard. Gypidula (Sieberella) coeymanensis var. corriganensis Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 345, pi. 62, figs. 12-18. Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland; Key- ser, West Virginia. Gypidula (Sieberella) coeymanensis prognostica Maynard. Gypidula (Sieberella) coeymanensis var. prognostica Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 344, pi. 62, figs. 9-11. Holtedahl, Second Arct. Exped. "Fram," 1898-1902, No. 32, 1914, p. 21, pi. 7, fig. 5. Helderbergian (Keyser): Pinto, Cumberland, Hancock, etc., Maryland; Keyser, West Virginia; Hyndman, Pennsylvania; Southwestern Ellesmereland, Arctic America. Gypidula coppingerl (Etheridge). Pentamerus coppingeri Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 594, pi. 25, figs. 2, 3. Gypidula coppingeri Schuchert, Bull. IT. S. Geol. Surv., 87, 1897, p. 226. Niagaran: Offley Island, Arctic America. Gypidula (Sieberella) galeata (Dalman). Atrypa galeata Dalman, Kongl. Svenska, Vet.-Akad. Handl., for 1827, 1828, p. 46, pi. 5, fig. 4. Troost, 6th Geol. Rep. Tennessee, 1841, p. 15. Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 117, fig. 1. Castelnau, Essai Syst. Sil. I'Am&ique Septentrionale, 1843, p. 39, pi. 14, fig. 4. Pentamerus galeatus Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 105, figs. 1-3. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 825, fig. 646. Hall, Pal. New York, 3, 1859, p. 257, pi. 46, fig. 1; pi. 47, fig. 1. Billings, Geol. Canada, 1863, p. 957, fig. 454. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 616, fig. Sherzer, Michigan Geol. Surv., 7, 1900, pt. 1, p. 224. Pentamerus galeatus var. Whiteaves, Cont. to Canadian Pal., 1, 1891, p. 234. Sieberella galeatus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 246, fig. 175; pi. 72, figs. 7-13. 572 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gypidula (Sieberella) galeata Continued. Gypidula (Sieberella) galeatus Kindle and Breger, 28th Ann. Rep. Dep., Geol. Nat. Res. Indiana, 1904, p. 437, pi. 2, figs. 20, 21, 23-29. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 278, fig. 388. Devonian: Europe; New York; Maryland; Pennsylvania; New Brunswick; etc. Identified in Niagaran at Delphi, Indiana, and in the Monroan of Michigan, both probably erroneously. Gypidula globulosa (Nettelroth). Pentamerus globulosus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 54. Gypidula globulosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. Niagaran (Louisville): Louisville, Kentucky. Cotypes.Gvt. No. 51339, U.S.N.M. Gypidula kno tti (Nettelroth) . Pentamerus knotti Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 56, pi. 32, figs. 9-12. Gypidula knotti Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. Niagaran (Louisville): Louisville, Kentucky. Holotype.V&t. No. 51354, U.S.N.M. Gypidula (Sieberella) nucleus (Hall and Whitfield). Pentamerus galeatus Hall and Whitfield, 24th Rep. New York State Cab. Nat. Hist., 1872, pp. 197, 200a. Pentamerua nucleus Hall and Whitfield, 27th Rep. New York State Cab. Nat. Hist., 1875, pi. 9, figs. 30-32. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 59, pi. 27, figs. 25-27; pi. 33, figs. 27-33. Sieberella nucleus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72, figs. 1-3. Gypidula nucleus Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. Gypidula (Sieberella) nucleus, Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 438, pi. 2, figs. 18, 19. Niagaran: Louisville, Kentucky (Louisville); Georgetown, Indiana. Plesiotypes.Ca,t. No. 51328, U.S.N.M. Gypidula (Sieberella) roemeri (Hall and Clarke). Pentamerus galeatus Roemer (not Dalman), Sil. Fauna West. Tennessee, 1860, p. 73, pi. 5, fig. 14. Sieberella -roemeri Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72, fig. 6; 48th Rep. New York State Mus., 2, 1897, p. 370, pi. 13, fig. 4; 14th Rep. State Geol. New York for 1894, 1897, p. 370, pi. 13, fig. 4. Gypidula rremeri Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 227. Foerste, Jour. Geol., 11, 1903, p. 711 (loc. occ.); Bull. Sci. Lab. Denison Univ., 14, 1909, p. 70, pi. 3, fig. 51C. Niagaran: Decatur County, Tennessee (Brownsport); ?Newsom, Tennessee (Waldron). Gypidula simplex Foerste. Gypidula simplex Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 70, pi. 3, figs. 51 A, B. Niagaran (Waldron): Newsom, Tennessee. Gypidula subglobosa Maynard. Gypidula subglobosa Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 346, pi. 62, figs. 20-22. Helderbergian (Keyser): Cash Valley, near Cumberland, Maryland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 573 Gypldula (Sioberella) uniplicata (Nettclroth). Peutamerus uniplicatus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 63, pi. 33, figs. 25, 26. Sieberella uniplicata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247. Gypidula uniplicata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. Niagaran (Louisville): Louisville, Kentucky. Holotype.C*t. No. 51337, U.S.N.M. GTROCERAS Dekoninck. Genotype: G. paradoxicum Dekoninck. Gyroceras Dekoninck, Desc. Animaux Fossiles, Liege, 1842, p. 530. D'Orbigny, Prodr. de Pal., 1, 1849, p. 27. Woodward, Man. Mollusca, pt. 1, 1851, p. 91, fig. 52. Saemann, Palaeontographica, 3, 1852, pp. 139, 159. Barrande, Neues Jahrb. f. Min., 1854, etc., p. 7, pi. 1, figs. 4a, b. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 651. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 259; Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 159, pi. 5, fig. 7. Billings, Cana- dian Nat. Geol., 2, 1857, p. 136, pi. 2, fig. 5. Chapman, Canadian Jour., n. s., 2, 1857, p. 266. Salter, Geol. Surv. Canada, dec. 1, 1859, pp. 31, 32. Bar- rande, Syst. Sil. du Centre Boheme, 2, pt. 1, 1867, p. 156. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th Ser., T, 1879, p. 64. Hall, >al. New York, 5, pt. 2, 1879, pp. 358, 368, 389. Koninck, Ann. d. Mus. Royal d'Hist. Nat. de Belgique, 5, 1880, p. 1. Blake, Mon. British Foss. Ceph., 1882, p. 65. Zittel, Handb. Pal., 2, 1884, p. 376. Miller, N. A. Geol. Pal., 1889, p. 441. Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1890, p. 90. Foord, Cat. Foss. Ceph. British Mus., 2, 1891, p. 53. Koken, Die Leitfossilien, Leipzig, 1896, p. 50, fig. 34. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1027. Gyroceras abruptum Hall. Gyroceras abruptum Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 325; Trans. Albany Inst., 10, 1883, p. 75 Niagaran (Waldron): Waldron, Indiana. Gyroceras americanum Billings. Gyroceras (Lituites) americanum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 309. Trochoceras americanum? Foord, Cat. Foss. Ceph. British Mus., 2, 1891, p. 40. Silurian: Port Daniel, Gaspe, Canada. Gyroceras baeri (Meek and Worthen). Trochoceras? Baeri Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 263. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 157, pi. 13, fig. 9. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 133. Lituites baeri James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 248.- Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1228, figs. Gyroceras baeri Miller, N. A. Geol. Pal., 1889, p. 441 (gen. ref.). Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 1032, pi. 51, fig. 1. Richmond (Liberty) : Richmond, etc., Indiana; Warren and Clinton Counties, Ohio. Gyroceras bannister! Winchell and Marcy. Gyroceras bannisteri Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 102. Trochoceras (Gyroceras) bannisteri Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, pp. 261, 393; rev. ed., 1870, p. 403, pi. 25, fig. 17. Niagaran (Racine): Chicago, Illinois; Wisconsin. 574 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gyroceras duplicostatum Whitfield. Gyroceras duplicostatum Whitfield, Ann. Rep. Geol. Surv. Wisconsin for 1877, 1878, p. 78; Geol. Wisconsin, 4, 1882, p. 235, pi. 7, fig. 1. Chamberlin, Geol. Wisconsin, 1, 1883, p. 159, fig. Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 811. Black River (Platteville): Beloit, Janesville, etc., Wisconsin. Gyroceras elrodi White. Gyroceras elrodi White, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 356, pi. 37, fig. 1; pi. 38, figs. 2-4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4. 1889, p. 268, figs. Barrandeoceras elrodi Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.). Niagaran (Laurel) : Hartsville, Indiana. Gyroceras farcimen Clarke and Ruedemann. Gyroceras farcimen Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 92, pi. 18, figs. 1-4. Niagaran (Guelph): Shelby, New York. GYROCERAS HERCULES Chamberlin. See Protophragmoceras hercules. GYROCERAS (LITUITES) MAGNIFICUM Billings. See Apsidoceras magnificum. GYROCERAS PARADOXICUM Hall. See Orthoceras paradoxicum. Gyroceras rhombolineare Owen. Not recognized. Gyroceras rhombolinearis Owen, Geol. Surv. Indiana, 1862, p. 362, fig. 4. Silurian: Locality not given. GYROCERAS (LITUITES) VAGRANS Billings. See Barrandeoceras vagrans. GYRONEMA Ulrich. Genotype: G. pulchelluin Ulrich and Scofield. Gyronema (subgenus of Trochonema) Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1054. Koken, Neuea Jahrb. f. Min., Geol. Pal., 1, 1898, p. 24. Gyronema brevispira Whiteaves. Gyronema brevispira Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, 1904, App. F, p. 51; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 259, pi. 29, fig. 4. Niagaran: Ekwan River, Canada. Gyronema dowlingi Whiteaves. Gyronema Dowlingii Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 50; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 259, pi. 29, fig. 3. Niagaran: Ekwan River, Canada. Gyronema duplicatum Ulrich and Scofield. Gyronema duplicatum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1055, pi. 78, figs. 22-25. Trochonema (Gyronema) duplicatum Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 671, fig. 928g, h. Black River (Platteville): Beloit, etc., Wisconsin; Dixon, Illinois. Cotype.Czt. No. 45823, U.S.N.M. Gyronema historicum (Hudson). Eunema historicum Hudson, Bull. New York State Mu?., 80, 1905, p. 288, pi. 4, fig. 5. Gyronema historicum Raymond, Ann. Carnegie Mus., 4, 1908, p. 208, pi. 54, figs. 5, 6. Cyclonema? normaliana Raymond, Amer. Jour. Sci., 4th Ser., 20, 1905, p. 377. Chazyan (Valcour): Valcour Island and Plattsburg, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 575 Gyronema leptonotum (Raymond). Eunema leptonotum Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 378. Gyronema leptonotum Raymond, Ann. Carnegie Mus., 4, 1908, p. 209, pi. 55, fig. 15. Chazyan (Day Point): Chazy, Now York. Gyronema liratum Ulrich and Scofield. Gyronema liratum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1056, pi. 78, fig. 14-16. Trochonema (Gyronema) liratum Grabau, Amer. Nat., 36, 1902, p. 925. Black River (Platteville) : Beloit, Wisconsin. Holotype.Czt. No. 45824, U.S.N.M. Gyronema inicroclathratum (Hudson). Holopea microclathrata Hudson, Bull. New York State Mus., 80, 1905, p. 294, pi. 4, figs. 3, 4. Gyronema microclathratum Raymond, Ann. Carnegie Mus., 4, 1908, p. 210. Chazyan (Valcour): Valcour Island, New York. Gyronema percarinatum (Hall). PleurotomariapercarinataHall, Pal. New York, 1, 1847, p. 177, pi. 38, fig. 4; 12th Rept. New York State Cab. Nat. Hist., 1855, p. 74. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 160, pi. 5, fig. 7. Cyclonema percarinata Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 321. Whitfield, Geol. Wisconsin, 4, 1882, p. 211, pi. 5, fig. 15. Chamberlin, Geol. Wisconsin, 1, 1883, p. 157, fig. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, .1889, p. 172, fig. Trenton: Middleville, New York. Gyronema pulchellum Ulrich and Scofield. Gyronema pulchellum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1054, pi. 78, figs 19-21. Trochonema (Gyronema) pulchellum Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 671, fig. 928e, f. Black River: Minneapolis, Chatfield, etc., Minnesota (Decorah); Mercer County, Kentucky. Cotypes.Czt. No. 45825, U.S.N.M. Gyronema? rotalineum Raymond. Gyronema? rotalineum Raymond, Ann. Carnegie Mus., 3, 1906, p. 577; ibid., 4, 1908, p. 210, pi. 54, fig. 4. Chazyan (Crown Point): Sloop Bay, Valcour Island, New York. Gyronema semlcarlnatum (Salter). Cyclonema semicarinata Salter, Geol. Surv. Canada, Can. Org. Rem., dec. 1, 1859, p. 27, pi. 6, figs. 2, 2a (not 2b). Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 145, fig. 90. Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 343. Gyronema semicarinatum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1055, pi. 78, figs. 17, 18. Black River: Allumette Island, Ottawa River, Canada (Leray); near Cannon Falls, Minnesota (Decorah). Plwotypea.CM. No, 45826, U.S.N.M, 576 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Gyronema speciosum Whiteaves. Gyronema speciosum Whiteaves, Gool. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 50; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 258, pi. 29, fig. 2. Niagaran: Ekwan River, Canada. HABROCRINUS D'Orbigny. Genotype: H. pusillus D'Orbigny. Abrocrinus D'Orbigny, Prodrome Pal. Strat., 1, 1844, pp. 47-146; Cours Elemen- taire de Pal., Geol., 2, 1851, p. 144. Habrocrinus Angelin, Icon. Crin. Suec., 1878, p. 3. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 279 (Rev. Pal., pt. 2, p. 105). Habrocrinus benedicti (Miller). Saccocrinus benedicti Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 283, pi. 5, fig. 1, 2 (adv. sheets, 1892). Habrocrinus benedicti Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 295 pi. 87, figs. 6, 7. Periechocrinus chicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 1902, p. 131, pi. 13, figs. 7, 8. Grabau and Shimer, N. A. Index Fossils, 1910, p. 536. Niagaran: St. Paul, Indiana (Laurel); Bridgeport and Joliet, Illinois (Racine). Habrocrinus farringtoni Slocom. Habrocrinus farringtoni Slocom, Field Columbian Mus. Geol., 2d ser., 2, 1908, p. 298, pi. 87, figs. 1-5. Niagaran (Racine): Drainage Canal near Leniont, Illinois. Habrocrinus howardi (Miller). Saccocrinus howardi Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 284, pi. 5, fig. 3-5 (adv. sheets, 1892); N. A. Geol. Pal., 1st App., 1892, p. 681, fig. 1244. Periechocrinus Howardi Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 529. Habrocrinus howardi Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 295. Niagaran (Laurel): St. Paul, Indiana. Habrocrinus lemontensis Slocom. Habrocrinus lemontensis Slocom, Field Columbian Mus., Geol. Ser., 2, 1908, p. 297, pi. 87, figs. 8-10. Niagaran (Racine): Drainage Canal near Lemont, Illinois. HABROCRINUS ORNATUS Wachsmuth and Springer. See Periechocrinus ornatus. HALICHONDRITES Dawson and Hinde. Genotype: H. confusus Dawson and Hinde. Halichondrites Dawson and Hinde, Canadian Rec. Sci., 3, 1888, p. 68. Dawson, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 52. Miller, N. A. Geol. Pal., 1st App., 1892, p. 667. Rauff, Neues Jahrb. Min., Geol. Pal., 2, 1893, p. 58. Halichondrites confusus Dawson and Hinde. Halichondrites confusus Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 52, fig. 23. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 116, fig. 26. Canadian? (Levis?) : Metis, Quebec. HALLIA Edwards and Haime. Genotype: H. insignis Edwards and Haime. Hallia Edwards and Haime, Mon. Polyp. Foss. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), pp. 165-353. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 453 BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 577 HALLIA Continued. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 356. Ludwig, Palsecm- tographica, 14, 1865, p. 143, pi. 31, fig. 5. Lindstrom, Geol. Mag., 3, 1866, p. 412. Dybowaki, Archiv. f. Naturf. Liv-, Ehst-und Kurl, 5, 1873, p. 337. Zittel, Handb. Pal., 1, 1879, p. 230. Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 411 (Ext., 1882, p. 7). Freeh, Zeits. d. Deutschen geol. Gesell., 37, 1885, p. 81; Pal. Anhandl., Dames and Kayser, 3, Heft 3, 1886, p. 81. Miller, N. A. Geol. Pal., 1889, p. 191. Sherzer, Amer. Geol., 7, 1891, pp. 290-295. Koken, Die Leitfossilien, Leipzig, 1896, p. 472. Hallia divergens Hall. Hallia divergens Hall, 35th Rep. New York State Mus. Nat. Hist., 1884 t>. 412 (Ext., 1882, p. 8). Niagaran (Racine): Racine, Wisconsin. Hallia divisa Hall. Hallia divisa Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 412 (Ext., 1882, p. 8). Niagaran: Louisville, Kentucky. Hallia pluma Hall. Hallia pluma Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 412 (Ext., 1882, p. 8). Niagaran (Racine): Racine, Wisconsin. Hallia scitula Hall. Hallia scitula Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 411 (Ext., 1882, p. 7). Niagaran: Louisville, Kentucky. HALLICYSTIS Jaekel. Genotype: Apiocystites imago Hall. Apiocystitea Hall (not Forbes nor Hall, 1852), 20th Rep. New York State Cab. Nat. Hist., rev. ed., 1868, p. 358. Halllcystis Jaekel, Stammes. Pelmat., Berlin, 1, 1899, p. 287. Schuchert, Smith. Misc. Coll., 47, pt. 2, 1904, p. 216. Springer, Zittel-Easfcman Textb. Pal., 2ded., 1913, p. 154. Hallicystls elongatus (Jaekel). Hallicystis elongata Jaekel, Stammesg. d. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 288. Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 217. Niagaran (Racine): Near Chicago, Illinois. Hallicystis imago (Hall). Apiocystites imago Hall, 18th Rep. New York State Cab. Nat. Hist., 1864, p. 10, pi. 3, fig. 12; pi. 1, fig. 9; 20th Rep. New York State Cab. Nat. Hist, (extras, 1864), 1868, p. 314, pi. 12 (3), fig. 12; pi. 12a (1) fig. 9; rev. ed., 1870, p. 358, pi. 12, fig. 12; pi. 12a, fig. 9. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Hallicystis imago Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 288, pi. 15, fig. 3. Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 216, fig. 24. Niagaran (Racine): Racine, Wisconsin; Chicago, Illinois. Plesiotype.C&t. No. 35060, U.S.N.M. HALLIELLA Ulrich. Genotype: H. sculptilis Ulrich. Halliella Ulrich, Jour. Cincinnati Soc. Nat. Hist. 13, pt. 2, 1891, p. 184. Miller, N. A. Geol. Pal., 1st App., 1892, p. 707. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 656. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346. 84243 Bull. 9215 37 578 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HaUleUa labiosa Ulricb. Halliella labiosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 656, pi. 46, figs. 43-46 Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346, fig. 1658r, r'. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425h. Trenton (Prosser): Near Cannon Falls, Minnesota. Cotypes.Gat. No. 41361, U.S.N.M. Halliella sculptilis (Ulrich). Primitia? sculptilis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 136, pi. 8, fig. 6. Halliella sculptilis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 656. Trenton (Perryville) : Perryville, Boyle County, Kentucky. Holotype.Czt. No. 41362, U.S.N.M. Halliella? seminulum longa Ulrich and Bassler. Halliella? seminulum var. longa Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 520, pi. 95, fig. 16. Helderbergian (Keyser): Cumberland, Maryland. Holotype Cat. No. 53309, U.S.N.M. ., Low. Halliella? triplicata Ulrich and Bassler. Halliella? triplicata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 521, pi. 95, figs. 17, 18. Helderbergian (Keyser): Cumberland, Maryland. Holotype. Cat. No. 53310, U.S.N.M. HALLINA Winchell and Schuchert. See Zygospira Hall. HALLOCERAS? HERCULES Grabau and Shimer. See Protophragmoceras hercules. HALLOGRAPTUS BIMUCRONATUS Lapworth. See Lasiograptus bimucronatus. HALLO FOR A Bassler. Genotype: Callopora elegantula Hall. Callopora Hall (not Callopora Gray, 1848), Pal. New York, 2, 1852, p. 144. Nicholson, Pal. Province Ontario, 1874, p. 61; Geol. Mag.,n. B., 1, 1874, p. 13. Hall, 28th Ann. Rep. New York State Mus., 1879, p. 114. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 154, 251. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 172. Hall and Simpson, Pal. New York, 6, 1887, p. 15. Miller, N. A. Geol. Pal., 1889, p. 295. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 372, 416; Geol. Minnesota, 1893, 3, p. 275; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 275. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 36, 186. Grabau, Bull. Buffalo Nat. Sci., 7, 1901, p. 167; Bull. New York State Mus., 9, 1901, p. 167. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 741. Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 40. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 139. Hennig, Archiv fur Zool., 4, 1908, p. 48. Hallopora Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 325, 326; Zittel-Eastman Textb. Pal., 1913, p. 337. Hallopora ampla (Ulrich). Callopora ampla Ulrich, Geol. Minnesota, 3, 1893, p. 281, pi. 23, figs. 13-15, 18-5 22, 23, 27, 28. Black River (Decorah) and Trenton (Prosser): Ramsey, Goodhue, and Fillmc Counties, Minnesota; Decorah, Iowa. Nos. 43518, 45519, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 579 Hallopora andrewsl (Nicholson). Chsetetes pulchellus (not of Milne-Edwards and Haime) Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 503, pi. 29, figs. 5-5 b. Nicholson, Pal. Ohio, 2, 1875, p. 195, pi. 21, figs. 5, 5a. Monticulipora (Heterotrypa) Andrewsii Nicholson, Genus Monticulipora, 1881, p. 128, fig. 21, pi. 5, figs. 1, la. Callopora andrewsi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 187. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 785, pi. 8, figs. 9, 9a; pi. 27, fig. 7. Monticulipora andrewsi (Van Cleve) Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 249, pi. 11, fig. 9. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 178. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 419, figs. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 200. Maysville (Bellevue and Corryville): Cincinnati, Ohio, and vicinity; south- eastern Indiana. Hallopora angularls (Ulrich). Callopora angularis Ulrich, Geol. Minnesota, 3, 1893, p. 277, pi. 22, figs. 37-41. Black River (Decorah): Minneapolis, Chatfield, and near Fountain, Minnesota. Cotypes.CM. No. 43520, U.S.N.M. Hallopora clausa (Bassler). Callopora clausa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 42, pi. 15, figs. 9-12. Clinton: Lockport and Rochester, New York- Grimsby, Ontario (Rochester); Osgood, Indiana (Osgood). Cotypes Cat. No. 35530, U.S.N.M Hallopora dalel (Milne-Edwards and Haime). Chtetetes Dalii Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 266, pi. 19, figs. 6, 6a. Monticulipora Dalii Milne-Edwards and Haime, British Foss. Corals, 1854, p. 265. Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 277. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 419, fig. Monticulipora (Heterotrypa) ramosa var. dalei Nicholson, Genus Monticulipora, 1881, p. 115, fig. 19, C, D, pi. 2, 4. Monticulipora ramosa var. dalei James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 182. J. F. James, ibid., 16, 1894, p. 205. Chaetetes approximatus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 502, pi. 29, fig. 3, 3a. Nicholson, Pal. Ohio, 2, 1875, p. 193, pi. 21, fig. 3. Monticulipora approximatus (Van Cleve) Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 250, pi. 11, fig. 6. Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1 889, p. 419. Callopora dalei Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 188. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 139, fig. 194. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 792, pi. 8, fig. 11; pi. 27, fig. 12; Bull. Geol. Soc. Amer., 23, 1912, p. 367, pi. 19, figs. 7, 8. Maysville: Cincinnati, Ohio, and vicinity (Mount Hope and Fail-mount); Central Tennessee (Leipers). Hallopora dumalis (Ulrich). Callopora dumalis Ulrich, Geol. Minnesota, 3, 1893, p. 282, pi. 23, figs. 1-8. Hallopora dumalis Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 331, fig. 207. 580 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hallopora du malls Continued. Black River (Decorah) and Trenton (Prosser) : St. Paul aud Cannon Falls, Min- nesota. Ordovician (Kuckers): Reval, Esthonia, Russia. Cotypes.Cat. No. 43517, U.S.N.M. Hallopora elegantula (Hall). Callopora elegantula Hall, Pal. New York, 2, 1852, p. 144, pi. 40, figs, a-m; 28th Ann. Rep. New York State Mus., 1879,,p. 115; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 237. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 250, pi. 11, figs. 6-6b; Zittel's Texb. Pal. (Engl. ed.), 1896, figs. 456, A, B (p. 274). Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, pi. 18, figs. 1-7. Grabau, Bull. New York State'Mus., 45, 1901, p. 167, fig. 67; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 167, fig. 67. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 41, pi. 17, figs. 11-15; pi. 26, fig. 12. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 140, figs. 195a-b. Hallopora elegantula Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 334, 335, fig. 210. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 337, figs. 491a, b. Callopora nana Nicholson, Ann. Mag. Nat. Hist., 5th ser., 13, 1884, p. 120. Niagaran: Lockport, Rochester, etc., New York; Ontario (Rochester); Waldron, Indiana; Newsom, Tennessee (Waldron); Osgood, Indiana (Osgood); Ster- ling, Illinois; Louisville, Kentucky; "West Tennessee, etc. Wenlock shale of England and Gotland. Plesiotypes. Cat. Nos. 35528, 43648, U.S.N.M. Hallopora frondosa (Cumings). Callopora frondosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 785, pi. 9, figs. 1, la. Richmond ("Whitewater) : Richmond, Indiana. .. Hallopora goodhuensls (Ulrich). Callopora goodhuensis Ulrich, Geol. Minnesota, 3, 1893, p. 282, pi. 23, figs. 10, 21, 29. Hallopora goodhuensis Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 327, figs. 203, 204. Trenton (Prosser): St. Paul, Cannon Falls, etc., Minnesota. Ordovician (Wassalem and Wesenberg) : Esthonia, Russia. Cotypes and plesiotype. Cat. Nos. 43524, 57460, U.S.N.M. Hallopora Incontroversa (Ulrich). Callopora incontroversa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 96; Geol. Minnesota, 3, 1893, p. 278, pi. 22, figs. 33-36. Black River (Decorah): Minneapolis, St. Paul, and Preston, Minnesota. Holotype.C*t. No. 43521, U.S.N.M. ta, Hallopora magnopora (Foerste). Callopora magnopora Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 173; 3, pi. 16, fig. 5; Geol. Surv. Ohio, 7, 1895, p. 600, pi. 29, fig. 5. Bassler, Bull. U. Geol. Surv., 292, 1906, pp. 42, 43, pi. 15, figs. 1-8; pi. 26, fig. 3. Upper Medinan (Brasefield) : Dayton and Centerville, Ohio. Clinton (Rochester) : Grimsby, Ontario. Plesiotypes. Cat. Nos. 35532, 44131, U.S.N.M. Hallopora multltabulata (Ulrich). Monotrypella multitabulata Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. nesote, 1886, p. 100. BIBLIOGRAPHIC LIST OF GENERA. AND SPECIES. 581 Hallopora multitabulata Continued. Callopora multitabulata Ulrich, Geol. Minnesota, 3, 1893, p. 280, pi. 23, figs. 11, 12, 16, 17, 24-26, 30, 31; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 456, C, D (p. 274). Sardeson, Jour. Geol., 9, 1901, p. 9, pi. A, figs. 5-6d. Ruedemann, Bull. New York State Mus., 49, for 1901, 1902, p. 13. Nickles, Bull. Ken- tucky Geol. Surv., 5, 1905, p. 42, pi. 1, fig. 2. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 22, pi. 1, figs. 5-7. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 139, figs. 188n, 190n. Hallopora multitabulata Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 326, 327, fig. 202; Zittel-Eastman Textb. Pal., 1913, p. 337, fig. 491. Monticulipora kentuckensis James, Paleontologist, No. 7, 1883, p. 57, pi. 2, figs. 1, lb. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 180, pi. 2, figs. 6a-d. J. F. James, ibid., 16, 1904, p. 203. Black River and Lower Trenton: Burgin, etc., Kentucky; Minneapolis, etc, Minnesota; Tennessee; Ontario; New York; Iowa; etc. Cotypes. Cat. Nos. 43522, 43523, U.S.N.M. lallopora nodulosa (Nicholson). Cha3tetes? nodulosus Nicholson, Quar. Jour. Gecl. Soc. London, 30, 1874, p. 506, pi. 29, figs. 9, 9a.; Pal. Ohio, 2, 1875, p. 200, pi. 21, figs. 10, lOa; Ann. Mag. Nat. Hist., ser. 4, 18, 1876, p. 87, pi. v. 3. Monticulipora (Heterotrypa) nodulosa Nicholson, Genus Monticulipora, 1881, p. 116, pi. 1, figs. 4-4d. Monticulipora nodulosa James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 182. J. F. James, ibid., 16, 1894, p. 206. Callopora nodulosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252; ibid., 6, 1883, p. 83. Nickles, Kentucky Geol. Surv. Bull. No. 5, 1905, p. 50, pi. 2, figs. 8, 9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 786, pi. 9, figs. 2-2c; pi. 27, fig. 8. Eden (McMicken) : Cincinnati, Ohio, and vicinity. Hallopora onealli (James). Chaetetes? O'Nealli James, Introd. Catal. Low. Sil. Foss., 1875, p. 2. Monticulipora o'nealli James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 174. J. F. James, ibid., 16, 1894, p. 194. Callopora onealli Miller, N. A. Geol. Pal., 1889, p. 296. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 23, pi. 6, figs. 1, 2. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 786, pi. 9, figs. 3-3b; pi. 27, figs. 9, 10. Eden: Cincinnati, Ohio, and vicinity (Economy); New York (Indian Ladder). Hallopora onealli communis (James). Monticulipora (Heterotrypa) o'nealli? var. communis James, Paleontologist, No. 6, 1882, p. 47; ibid., No. 7. 1888, pi. 1, 8. Monticulipora communis James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 175, pi. 2, figs. 5a, b. J. F. James, ibid., 16, 1894, p. 195. Callopora oneaHL-communis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 190. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 24, pi. 1, fig. 13; pi. 4, figs. 8, 9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 788, pi. 8, fig. 10; pi. 27, fig. 11. Eden (Economy McMicken): Cincinnati, Ohio, and vicinity. Plesiotypes Cat. No. 35394, U.S.N.M. Hallopora onealli siglllarioides (Nicholson). Chsetetes eigillarioides Nicholson, Pal. Ohio, 2, 1875, p. 203, pi. 22, figs. 9, 9a; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 87, pi. 5, fig. 2. 582 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hallopora onealll siglllarioides Continued. Callopora eigillaroidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252; 6, 1883, p. 83. CallopDra sigillarioides Miller, N. A. Geol. Pal., 1889, p. 296, fig. 464. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 50, pi. 2, figs. 10, 11. Bassler, Virginia Geol. Surv., Bull. 2a, 1909, pi. 14, fig. 3. Callopora onealli-sigillaroides Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 191. Cumings, Amer. Geol., 28, 1901, p. 374. Bassler, Proc. U. S. Nat. Mus., 30, 1906, pi. 6, figs. 3, 4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 789, pi. 9, fig. 4. Monticulipora (Heterotrypa) O'Nealli (not James) Nicholson, Genus Monticuli- pora, 1881, p. 118, pi. 3, figs. 3-3f. Eden (Economy McMicken): Cincinnati, Ohio, and vicinity. Plesiotypes.C&t. No. 35395, U.S.N.M. Hallopora pulchella (Ulrich). Callopora pulchella Ulrich, Geol. Minnesota, 3, 1893, p. 283, pi. 22, figs. 1-12. Black River (Decorah): St. Paul and Cannon Falls, Minnesota. Cotypes.G&t. No. 43525, U.S.N.M. Hallopora pulchella persimilis (Ulrich). Callopora pulchella var. persimilis Ulrich, Geol. Minnesota, 3, 1893, p. 284, pi. 22, figs. 13-17. Black River (Decorah): Near Cannon Falls, Minnesota. Cotypes.Ca,t. No. 43526, U.S.N.M. Hallopora ramosa (D'Orbigny). Monticulipora ramosa D'Orbigny, Prodr. de Pal., 1, 1850, p. 25. Milne-Edwards and Haime, British Fosa. Corals, 1854, p. 265. Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 277. Nicholson, Tab. Corals Pal. Period, 1879, p. 274, fig. 35b Zittel, Handb. Pal., 1, 1880, p. 614, fig. 446b. James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 181; ibid., 16, 1894, p. 204. Miller, N. A. Geol. Pal., 1889, p. 197, fig. 198. Boule and Thevenin, Ann. de Pal., 1, 1906, p. 6, pi. 2, figs. 6-8. Chsetetes ramosus Milne-Edwards and Haime, Pal. Foss. Terr. Pal., 1851, p. 266, pi. 19, figs. 2, 2a Nicholson, Ann. Mag. Nat. Hist., ser. 4, 18, 1876, p. 88. Quenstedt, Roehren- und Sternkorallen, 1881, p. 77, pi. 146, figs. 13-18. Monticulipora (Heterotrypa) ramosa Nicholson, Pal. Tab. Corals, 1879, p. 296, pi. 13, figs. 2, 2a; Genus Monticulipora, 1881, p. 110, fig. 18, pi. 2. figs. 2 ; 2a. Zittel, Handb. Pal., 1, 1880, p. 615, fig. 447; Textb. Pal., English ed., 1896, fig. 185, p. 103, fig. 186B, p. 103. Heterotrypa ramosa Nicholson in Steinniann, Neues Jahrb. Min., Geol. Pal., 1, 1882, pi. 4, fig. 1. Callopora ramosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252; 6, 1883, p. 83; Geol. Surv. Illinois, 8, 1890, p. 315, fig. 5b. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 139, fig. 194, 1. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 790, pi. 9, figs. 5, 5a; pi. 10, fig. 1; pi. 27, fig. 13, 13a; Bull. Geol. Soc. Amer., 23, 1912, p. 368, pi. 20, fig. 16. Hallopora ramosa Bassler, Zittel-Eastman Textb. Pal., 1913, p. 337, fig. 490. Chsetetes Dalei (not of Milne-Edwards and Haime) Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 501, pi. 29, figs. 1, la; Pal. Ohio, 2, 1875, p. 192, pi. 21, figs. 1, la. Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 249, pi. 11, fig. 2. Maysville (McMillan) : Cincinnati, Ohio, and vicinity. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 583 Hallopora rugosa (Milne-Edwards and Haime). Chsetetes rugosus Milne-Edwards and Haime, Pal. Foss. Terr. Pal., 1851, p. 268, pi. 20, figs. 6, 6a. Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 502, pi. 29, fig. 2; Pal. Ohio, 2, 1875, p. 193, pi. 21, fig. 2; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 87, pi. 5, fig. 4. Quenstedt, Roehren-und Stern- korallen, 1881, p. 78, pi. 146, figs. 19, 20. Monticulipora rugosa Milne-Edwards and Haime, British Foss. Corals, 1854, p. 265. Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 277. Dybowski, Die Chsetetiden d. Ost, Silur-Fonn., 1877, p. 92, pi. 3, fig. 1. Chamberlin, Geol. Wisconsin, 1, 1883, p. 172, fig. Monticulipora (Heterotrypa) ramosa var. rugosa Nicholson, Genus Monticulipora, 1881, p. 113, fig. 19A, B, pi. 2, fig. 3. Monticulipora ramosa var. rugosa James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 182. James, ibid., 16, 1894, p. 205. Callopora ramosa var. rugosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 252. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 793, pi. 10, fig. 2, pi. 27, figs. 14, 14a. Callopora rugosa Nickles and Bassler, Bull. U. S. Geol. Sun,'., 173, 1900, p. 192. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 140, fig. 194, 2. Maysville (McMillan): Cincinnati, Ohio, and vicinity. Hallopora subnodosa (Ulrich). Callopora subnodosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 417, pi. 33, figs. 5, 5c, fig. 3d (p. 308). Miller, N. A. Geol. Pal., 1889, fig. 465 (p. 296). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 796, pi. 10, figs. 5, 5a. Richmond: Blanchester, Waynesville, Hanover, and other localities in Ohio; Richmond and Versailles, Indiana; Wilmington and Savannah, Illinois; Iron Ridge, Wisconsin. Cotypes.Czt. No. 43393, U.S.N.M. Hallopora subplana (Ulrich). Callopora subplana Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 253, pi. 11, figs. 7, 7b. J. F. James, ibid., 16, 1894, p. 196. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 795, pi. 10, figs. 4, 4a; pi. 27, fig. 15. Maysville (Mount Hope and Fairmount) : Covington, Kentucky, and vicinity. Cotypes.Czt. No. 43649, U.S.N.M. Hallopora undulata (Ulrich). Callopora undulata Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 95; Geol. Minnesota, 3, 1893, p. 279, pi. 22, figs. 24-31. Hallopora undulata Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 332, fig. 208. Black River (Decorah): Minneapolis and St. Paul, Minnesota. Ordovician (Wassalem): Uxnorm, Esthonia, Russia. Cotypes.Czt. No. 43816, U.S.N.M. HALLOPORINA Bassler. Genotype: Callopora crenulata Ulrich. Calloporina Ulrich and Bassler (not Neviani, 1895), Smiths. Misc. Coll., Quart., 47, 1904, p. 47. Callopora Ulrich (part), Geol. Minnesota, 3, 1893, p. 275. Halloporina Bassler, Zittel-Eastman Textb. Pal., 1913, p. 337. Halloporlna crenulata (Ulrich). Callopora crenulata Ulrich, Geol. Minnesota, 3, 1893, p. 284, pi. 22, figs. 18-23. Calloporina crenulata Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 47, pi. 14, figs. 17-19. Black River (Decorah) and Trenton (Prosser) : St. Paul and Cannon Falls, Min- nesota; Decorah, Iowa; Neenah, Wisconsin. Cotypes.Czt. No. 43515, U.S.N.M. 584 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Halloporina parva (Ulrich and Bassler). Calloporina parva Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 48, pi. 14, figs. 13-16. Black River: Near Belfast, Marshall County, Tennessee. Cotypes.C&t. No. 43217, U.S.N.M. HALYSITES Fischer. Genotype: H. catenularia Linnaeus. Halysites Fischer, Zoognosia, 3d ed., 1, 1813, p. 387; Notice sur les Polypiers Tubipores Fossiles, 1828, p. 15. Fischer de Waldheim, Oryct. Gouv. Moscou, 1830, p. 163. Edwards and Haime, Compt. Rend, de 1'Acad. Sci., 29, 1849, p. 261; Mon. d. Polyp. FOBS. d. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5, 1851), pp. 155, 281. McCoy, British Pal. Rocks and FOBS., 1854, p. 26. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 445. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 286. Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 130. Salter, Cat. Camb. and Sil. Foss., 1873, p. 110. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 77. Lindstrom, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 13. Nicholson, Tab. Corals Pal. Period, 1879, p. 226. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. -274. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 483. Miller, N. A. Geol. Pal., 1889, p. 191. Sardeson, Neues Jahrb. f. Min., Geol. and Pal., Beilage-Band, 10, 1896, p. 272. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 64. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 25. Grabau, Bull. New York State Mus., 45, 1901, p. 143; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 143. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 268. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 96. Catenipora Lamarck, Hist, des Amer. sane Vert., 2, 1816, p. 206. Say, Amer. Jour. Sci. Arts, 2, 1820, p. 34. Eichwald, Zool. Specialis, pt. 1, Vilnae, p. 192. Eaton, Geol. Textb., 2d ed., 1832, p. 41. Steininger, Mem. Soc. Geol. France, 1, 1834, p. 342. Dana, Wilkes U. S. Expl. Exped., 7, Zoophytes, 1838, pp. 430, 538. Goldfuss, Petrefacta, 1826, pp. 74, 245; 2d ed., pt. 1, 1862, p. 70. Say, Bull. Amer. Pal., 1, 1896, p. 282 (reprint). Halysites agglomeratiformis Whitfield. Halysites agglomeratiformis Whitfield, Amer. Mus. Nat. Hist., 13, 1900, p. 20, pi. 2, figs. 1, 2. Niagaran: Cape Harrison, Princess Marie Bay, Arctic America. Halysites agglomeratus Hall. Catenipora agglomerata Hall, Nat. Hist. New York, Geol., 4, tab. ill., 22, 1843, fig. 2; Pal. New York, 2, 1852, p. 129, pi. 35 (bis), fig. 2a-g. Halysites agglomerata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 79 (gen. ref.). Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 146. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 227; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 51, fig. 24; Tab. Corals Pal. Foss., 1879, p. 22, fig. 9. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 270, figs. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 48. Whitfield, Bull. Amer. Mus. Nat. Hist., 19, 1903, p. 490, pi. 42, figs. 3, 4. Clarke and Ruedemann Mem. New York State Mus., 5, 1903, p. 34. Niagaran: Sweden, Ogden, etc., New York (Lockport-Guelph) ; Milwaukee, etc., Wisconsin. HALYSITES AGGLOMERATUS var. COMPACTUS Whiteaves. See Halysites compactus. Halysites catenularia (Linnaeus). Tubipora catenularia Linnaeus, Syst. Nat., 12th ed., 1767, p. 1270. Halysites catenularia Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 28.1 (Gives a long list of European BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 585 Halysltes catenularia Continued. references). Mon. British Foss. Corals, Pal. Soc., 1854, p. 270, pi. 64, figs. 1-lc. Emmons, Man. Geol., 1860, p. Ill, fig. 101. Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 25, pi. 2, fig. 7. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 287. Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 66, fig. 2. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 85. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 146. Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 227; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 51, figs. 24a, b; Tab. Corals Pal. Period, 1879, p. 22, figs. 9a, b, pi. 10, figs. 7, 7a; pi. 11, figs. 1, la. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 486, pi. 9, figs. 6a, 6b. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 47. Sardeson, Neues Jahrb. f . Min., Geol. and Pal., Beilage-Bd., 10, 1896, p. 272. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 68, pi. 3, figs. 1, la, b, 2, 2a, 3, 3a. Schuchert, Amer. Geol., 31, 1903, p. 164. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 222, pi. 17, figs. 6-8. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 33. Foerste, Cincinnati Soc. Nat. Hist., Jour. 21, 1909, p. 10. Lambe, Cruise of the " Neptune," App., 4, 1906, p. 326. Tubipora catenulatus Linnaeus, Syst. Nat., 13th ed., 1789, p. 3753. Halysites catenulatus Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, App., 1852, p. 228, pi. 6, fig. 11. Billings, Canadian Nat. Geol., 1, 1856, p. 319, fig. 9. Chapman, Canadian Jour., n. s., 6, 1861, p. 509, fig. 76; ibid., 8, 1863, p. 211, fig. 216. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 305, fig. 303. Chapman, Expos. Min. Geol. Canada, 1864, p. 103, fig. 76; p. 183, fig. 216. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 7, 52. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 78, pi. 29, figs. 1, 2, 4. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 582. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, p. 49. Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., 1879, p. 577. Whitfield, Geol. Wisconsin, 4, 1882, p. 271, pi. 13, figs. 5-7; p. 241, pi. 10, fig. 6. White, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 382, pi. 46, figs. 4-7. Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 67, figs. 1-3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 270, figs. Miller, N. A. Geol. Pal., 1889, p. 191, fig. 180. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 337. Grabau, Bull. New York State Mus., 45, 1901, p. 143, fig. 39; Bull. Buffalo Soc. Nat. Sci., 8, 1901, p. 143, fig. 39. Whitfield, Bull. Amer. Mus. Nat. Hist., 19, 1903, p. 489, pis. 41, 42, fig. 5. Hayes and Ulrich, U. S. Geol. Surv., Folio 95, ill. sheet, 1903, fig. 6. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 96, fig. 153. Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 220, pi. 26, fig. 8. Catenipora escharoides Lamarck, Anim. sans, vertebres, 1st ed., 2, 1816, p. 207. Say, Amer. Jour. Sci., 2, 1819, p. 34. Goldfuss, Petrefacta, 1826, p. 74, pi. 25, figs. 4a-c; p. 245. Eaton, Geol. Textb., 2d ed., 1832, p. 42, pi. 5, fig. 53. Troost, 5th Geol. Rep. Tennessee, 1840, p. 68. Castelnau, Essai Syst. Sil. L'Amerique Septent., 1843, p. 45, pi. 17, fig. 3. Hall, Geol. New York, 4, tab. ill., 22, 1843, fig. 1. Owen, Geol. Expl. Iowa, Wisconsin, and Illinois, 2d ed., 1844, p. 33, pi. 7, fig. 2. Hall, Amer. Jour. Sci. Arts, 2d ser., 7, March, p. 228. Edwards and Haime, Mon. Polyp. Foss. d. Terr. Pal., 1851 (Arch, du Mus. d. Hist. Nat., 5), p. 284; Pal. New York, 2, 1852, p. 44, pi. 18, fig. 2; p. 127, pi. 35, figs, la-c; p. 325. Marcou, Geol. Map. United States and Brit- ish Prov., etc., 1853, p. 28, pi. 2, fig. 10. Edwards and Haime, Mon. British Foss. Corals, Pal. Soc., 1854, p. 272, pi. 64, figs. 2, 2a. Milne-Edwards, Hist. 586 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Halysites catenularia Continued. Nat. d. Corall., 3, 1860, p. 289. Goldfuss, Petrefacta, 2d ed., pt. 1, 1862, p. 70. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 271, fig. Sardeson, Neues Jahrb. Min., Geol. Pal., Beilage-Band, 10, 1896, p. 273. Say, Bull. Amer. Pal., 1, 1896, p. 282 (reprint). Silurian: A widely distributed species in all divisions of the Silurian in Europe and North America. Halysites catenularia amplitubulatus Lambe. Halysites catenularia var. amplitubulata Lambe, Contr. Canadian Pal., Geol. Surv. Canada, 1899, p. 71, pi. 4, figs. 4, 4a. Silurian or Helderbergian: L'Anse a la Barbe and L'Anse au Gascon, Quebec. Halysites catenularia feildeni (Etheridge). Halysites catenulatus var. Feildeni Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 582, pi. 28, fig. 1. Niagaran: Cape Hilgard, Arctic America. HALYSITES CATENULARIA var. GRACILIS Whiteaves. See Halysites gracilis. Halysites catenularia harti (Etheridge). Halysites catenulatus var. Harti Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 583, pi. 28, fig. 2. Niagaran: Cape Frazer, Arctic America. Halysites catenularia microporus (Whitfield). Halysites catenulatus var. microporus Whitfield, Geol. Wisconsin, 4, 1882, p. 272. pi. 13, fig. 6. Halysites catenularia var. micropora Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 70, pi. 3, fig. 4. Silurian (Racine, Guelph, and Cataract): Bailey's Harbor, etc., Wisconsin; Ontario. Halysites catenularia nitidus Lambe. Halysites catenularia var. nitida Lambe, Contr. Canadian Pal., Geol. Surv. Canada, 1899, p. 71, pi. 4, figs. 2a, 2b. Silurian or Helderbergian: L'Anse a la Barbe, Baie des Chaleurs, and Neigette Falls, near Rimouski, Quebec. Halysites catenularia quebecensis Lambe. Halysites catenularia var. Quebecensis Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 69, pi. 4, figs. 1, la, b. Black River or Richmond: Lake St. John, Quebec. HALYSITES CATENULATUS of authors. See Halysites catenularia. HALYSITES CATENULATUS var. GRACILIS Schuchert. See Halysites gracilis. HALYSITES CATENULATUS var. LABYRINTHICUS Whitfield. See Halysites labyrinthicus. HALYSITES CATENULATUS NEXUS Foerste. See Halysites labyrinthicus. Halysites compactus Rominger. Halysites compactus Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 79, pi. 29, fig. 3. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 2 (loc. occ.). Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 71, pi. 4, figs. 5, 5a, 6-8a. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 292. BIBLIOGKAPHIC LIST OF GENEEA AND SPECIES. 587 Halysites compactus Continued. Halysites agglomeratus var. compactus Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, pt. 2, 1895, p. 48. Niagaran: Epoufette Point, Michigan; Elora, Gait, and Lake Temiscaming, Ontario; near Donald, British Columbia. HALYSITES ESCHAROIDES Edwards and Haime. See Halysites catenularia. Halysites gracilis (Hall). Catenipora gracilis Hall, Geol. Lake Sup. Land Dist., Foster and Whitney's Rep., 1851, p. 212, pi. 29, figs, la, b; Rep. Geol. Surv. Wisconsin, 1862, p. 430. Halysites catenularia var. gracilis Whiteaves, Pal. Foss., Geol. Surv. Canada., 3, pt. 3, 1897, p. 150. Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 69, pi. 3, figs. 5, 5a, b, 6, 7. Halysites catenulatus var. gracilis Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 153. Richmond: Green Bay, Wisconsin; Lake W T innipeg; Anticosti; Ontario; Baffin Land. Halysites labyrinthicus (Goldfuss). Catenipora labyrinthica Goldfuss, Petrefacta Germania, 1826, p. 75, pi. 25, figs. 5a, b; see also p. 245. Troost, 5th Geol. Rep. Tennessee, 1840, p. 63. Vanuxem, Nat. Hist New York Geol., 3, 1842, p. 112. Castelnau, Essai Syst. Sil. 1'Amer. Sept., 1843, p. 45, pi. 17, fig. 2. Goldfuss, Petrefacta, 2d ed., pt. 1, 1862, p. 71. Halysites catenulatus var. labyrinthicus Whitfield, Geol. Wisconsin, 4, 1882, p. 273, pi. 13, fig. 7. Halysites nexus Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 67, figs. 4, 5. Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, 1909, p. 10. Halysites catenulatus nexus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 238. Catenipora Michelini Castelnau, Essai Syst. Sil. PAmerique Septent., 1843, p. 45, pi. 17, fig. 1. Catenipora meandrina Troost, 5th Geol. Rept. Tennessee, 1840, p. 68. Halysites meandrina Miller, N. A. Geol. Pal., 1889, p. 191 (gen. ref.). Niagaran: Drummond Island, Lake Huron; Louisville, Kentucky (Louisville); Decatur and Perry Counties, Tennessee (Brownsport) ; Wisconsin. HALYSITES NEXUS Davis. See Halysites labyrinthicus. Halysites parryi (Konig). Catenipora Parryi Konig, Supplement to App. of Captain Parry's Voyage for the Discovery of a Northwest Passage, in the years 1819-20, 1824, p. 251. Halysites parryi Miller, N. A. Geol. Pal., 1889, p. 191 (gen. ref.). Niagaran: Prince Regents Inlet, Arctic America. Halysites radiatus Whitfield. Halysites radiatus Whitfield, Bull. Amer. Mus. Nat. Hist., 19, 1903, p. 490, pi. 42, figs. 1, 2. Niagaran: Jackson County, Iowa. Halysites sexto-catenatus Owen. Halysites sexto-catenatus Owen, Geol. Surv. Indiana, 1862, p. 362. Niagaran: Huntington County, Indiana. Observation. Not recognized. Probably the same as H. catenularia. 588 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HAPLOCONUS Raymond. Genotype: Bathyurus smith! Billings. Haploconus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61; Zittel- Eastman Textb. Pal., 1913, p. 721. Haploconus brevimarginatus (Walcott). Cyphaspis? brevimarginatus Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 93, pi. 12, fig. 10. Haploconus brevimarginatus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61 (gen. ref.). Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada. Holotype.Czt. No. 24646, U.S.N.M. Haploconus galenensis (Clarke). Cyphaspis(?) galenensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 759, fig. 82. Haploconus galenensis Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61 (gen. ref.). Trenton (Prosser): Cannon Falls, Minnesota. Holotype.Ca,t. No. 41956, U.S.N.M. Haploconus smith! (Billings). Bathyurus Smithi Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 153, fig. 114a; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 56 (advance sheets, 1862). Miller, N. A. Geol. Pal., 1889, p. 534, fig. 973. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 288, fig. 1595. Haploconus smithi Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 62, pi. 7, figs. 13, 14. Trenton: Peterborough, Ontario. HAPLOCRINITES GRANULATUS Troost. See Haplocrinus granulatus. HAPLOCRLNITES HEMISPHERICUS Troost. See Pisocrinus quinquelobus. HAPLOCRINITES MAXIMUS Troost. See Haplocrinus maximus. HAPLOCRINITES OVALIS Troost. See Haplocrinus ovalis. HAPLOCRINUS Steininger. Genotype: H. sphaeroideus Steininger. Haplocrinus Steininger, Mem. Geol. Soc. France, 1, 1834, p. 232; Bull. Soc. Geol. France (Ser.), 8, 1837, p. 231. Roemer, Rhein. Uebergangs., 1844, p. 63. Steininger, Verstein. Eifel, 1849, p. 20. Quenstedt, Handb. Petref., 1852, p. 624. Steininger, Geogn. Beschr. Eifel, 1853, p. 36. Muller, Verh. Nat. Verein, Jahrb., 12, 1855, p. 21. Roemer, Leth. Geog. (Ausg. 3), 1855, p. 260. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 309. Hall, loth Rep. New York State Cab. Nat. Hist, for 1861, 1862, p. 143. Dujardin and Hupe, Hist. Nat. Des. Zooph. Ech., 1862, p. 105. Allman, Trans. Royal Soc. Edinburgh, 23, 1864, p. 247, fig. 2. Schultze, Echin. Eifelk., 1866, p. 103; Denk. d. Kais. Akad der Wiss., Math.-Naturw. Cl., 24, Abth. 2, 1866, p. 215, fig. 21. DeKoninck, Bull. 1'Acad. Roy. Belg., ser. 2, 3 (Extr. 63), 1868. Zit- tel, Handb. Pal., 1, 1879, p. 347. Quenstedt, Handb. Petref. (Ausg. 3), 1882, p. 964. Carpenter, Challenger Rep. Crin., 1885, p. 158, etc. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 79, 83 (Rev. Pal., pt. 3, pp. 155, 159); ibid., 1887, pp. 97-113; ibid., 1888, pp. 339-363. Miller, N. A. Geol. Pal., 1889, p. 252. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1890, pp. 354-390. Bather, Kongl. Sv. Vet. Akad. HandL, 25, No. 2, 1893, pp. 20, 25, fig. 5. Whidborne, Mon. Dev. Fauna South England, 2, Pal. Soc., 1895, p. 204. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 151, figs. 35, 64. Zittel, Grundzuge Pal., 1, 1910, p. 196. Aplocrinus D'Orbigny, Prodr. Pal. Strat., 1, 1849, p. 102. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 589 Haplocrlnus granulatus (Troost). Haplocrinites granulatus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 420; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.). Haplocrinus granulatus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 376. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 25, pi. 4, figs. 4, 5. Niagaran (Brownsport) : Decatur County, Tennessee. Haplocrinus maximus (Troost). Haplocrinites maximus Troost, Amer. Jour. Sci. Arts., 2d ser., 8, 1849, p. 420; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.). Haplocrinus maximus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 376. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 26, pi. 4, figs. 6, 7, 8. Niagaran (Brownsport) : Decatur County, Tennessee. Haplocrinus ovalis (Troost). Haplocrinites ovalis Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 420; Proc. Amer. Assoc. Adv. Sci., 2, p. 61 (nom. nud.). Haplocrinus ovalis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 376; Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 25, pi. 4, fig. 3. Niagaran (Brownsport): Decatur County, Tennessee. HARLANIA Goeppert. See Arthrophycus Hall. HARLANIA HALLI Goeppert. See Arthrophycus alleghaniensis. Harmodites rugosa D 'Orbigny. Harmodites rugosa D 'Orbigny, Prodr. Pal., 1, 1849, p. 50. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 296. Boule and Thevenin, Ann. de Pal., 1, 1906, p. 7, pi. 9, fig. 5. Silurian(?): Falls of the Ohio. Observation. The figures of Bonle and Thevenin refer to a Devonian species of Syringopora. HARPES Goldfuss. Genotype: Trilobites ungula Sternberg. Harpes Goldfuss, Nova Acta Physico-Med., 19, 1839, p. 358; Neues Jahrb. f. Min., etc., 1843, pp. 540, 548. Portlock, Rep. Geol. Londonderry, 1843, p. 265. Burmeister, Org. der Tril., Berlin, 1843, p. 87. Emmrich, Neues Jahrb. f. Min., etc., 1845, p. 45. Beyrich, Untersuchung uber Tril., 1846, p. 32. Hawle and Corda, Abh. bohm. Gesell. d. Wiss., 5 (extract), 1847, p. 162, pi. 7, fig. 83. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 777; Syst. Sil. du Centre Boheme, 1, 1852, p. 343, pi. 8, 9. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1854, p. 86. Pictet, Traite" de Pal., 2d ed., 2, 1854, p. 487. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 1881, p. 65. Clarke, Jour. Morph., 2, 1888, pp. 265, 266. Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc., 1889, p. 29. Miller, N. A. Geol. Pal., 1889, p. 549. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 756. Koken, Die Leitfossilien, Leipzig, 1896, p. 15, fig. 9, fig. 3. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 105, 184, 185, pi. 3, fig. 11. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, no. 8, 1901, pp. 27, 31. Grabau and Shimer, N. A. Index Foeeals, 2, 1910, p. 258. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 711. HARPES (part) of American authors. See Eoharpea Raymond. Harpes tellerl Weller. Harpes telleri Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 213, pi. 20, fig. 2. Niagaras (Racine); Milwaukee, Wisconsin. 590 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HARPIDES Beyrich. Genotype: Harpides hospes Beyrich. Harpides Beyrich, Unters. Tril., 1846, p. 34. Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847, pp. 161, 166, pi. 7, fig. 84. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 780. Pictet, Traite" de Pal., 2d ed., 2, 1854, p. 498. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 86. Zittel, Eandb. Pal., 2, 1885, p. 625. Miller, N. A. Geol. Pal., 1889, p. 549. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 42, 1894, p. 63. Koken, Die Leitfossilien, Leipzig, 1896, p. 24. Freeh, Leth. geog., 1 Th., Leth. Pal., 2, 1897, p. 44, footnote. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 185. Lindstrom, Kongl. Sven. Vet. Akad. Handl., 34, no. 8, 1901, pp. 27, 31, 32. Dictyocephalites Bergeron, Bull. Soc. Geol. de France, 3d ser., 23, p. 469, pi. 4, figs. 4, 5. Pompeckj, Ein neuentdecktes Vorkommen von Tremadoc- Fossilien bei hof, 1896, p. 12; Neues Jahrb. f. Min., 1, 1897, p. 548. Reed, Geol. Mag., dec. 4, 5, 1898, p. 496. HARPIDES? AMERICANUS Freeh. See Arethusina americana. Harpides atlanticus Billings. Harpides Atlanticus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 281, fig. 267. Chazyan (Quebec P) : Four miles northeast Portland Creek, Newfoundland. Harpides concentricus Billings. Harpides concentricus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 282, fig. 268. Chazyan (Quebec P.): Four miles northeast Portland Creek, Newfoundland. Harpides(?) desertus Billings. Harpides? desertus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 333, fig. 321. Canadian (Beekmantown) : Bed of Pike River, Bedford, Canada. HARPINA Novak. See Eoharpes Raymond. HARRISIA Cleland. Pee Clelandia Cossman. HEBERTELLA Hall and Clarke. Genotype: Orthis sinuata Hall. Group of Orthis occidentals Hall, Bull. Geol. Soc. America, 1, 1889, p. 20. HebertellaHall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 198, 222. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 432. Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 266. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 254. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 888. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 381. Eridorthis (subgenus of Plectorthis) Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 223. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 381. (Geno- type, Plectorthis (Eridorthis) nicklesi Foerste.) Glyptorthis Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 257. (Genotype: Hebertella insculpta Hall.) Hebertella alveata Foerste. Orthis occidental Safford (not Hall, 1847), Geol. Tennessee, 1869, p. 275, fig. 11. Meek, Pal. Ohio, 1, 1873, p. 96, pi. 9, fig. 3. White, Wheeler's Expl. Survey West 100th Mend., 4, 1875, p. 70, pi. 4, fig. 11. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 34. Shaler, Mem. Geol. Surv. Kentucky, 1, 1876, pp. 87-39. White, 2d Ann. Rep. Indiana Bur. Stat. and Geol., 1880, p. 485, pi. 2, figs. 10-12; 10th Rep. State Geol. Indiana, 1881, p. 117, pi. 2, figs. 10-12. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 591 Hebertella alvoat a Continued. Whitfield, Geol. Wisconsin, 4, 1882, p. 260, pi. 12, figs. 17, 18. Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 31-34; pi. 35, figs. 16-21. Chamberlin, Geol. Wisconsin, 1, 1883, p. 174, fig., p. 155. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 525, figs. Dennis, Proc. Indiana Acad. Sci. for 1898, 1899, p. 289. Hebertella occidentalis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222, pi. 5A, figs. 11, 12. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 255, figs. 304f-h. Cumings, 32d Ann. Dep. Geol. Nat. Res. Indiana, 1908, p. 906, pi. 34, fig. 4. Platystrophia occidentalis Hall, 36th Rep. New York State Mus. Nat. Hist., 1884, p. 75, pi. 3, fig. 3. Hebertella alveata Feorste, Bull. Sci. Lab. Denison-Univ., 14, 1909, p. 224, pi. 4, figs. 8a-b. Richmond (Liberty, Whitewater): Ohio, Indiana, Kentucky. Hebertella alveata richmondensis Foerste. Hebertella alveata-richmondensis Foerste, Bull. Sci. Lab. Denison. Univ., 14, 1909, p. 224, pi. 4, fig. 8c; 1910, 14, p. 55, pi. 5, figs. 10, 17. Richmond (Whitewater) : Richmond, Indiana. Hebertella battis (Billings). Orthis Battis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 185. Hebertella battis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Ozarkian? (Levis erratic): Point Levis, Quebec. Hebertella (Glyptorthls) bellarugosa (Conrad). Orthis bellarugosa Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 333. Hall, Pal. New York, 1, 1847, p. 118, pi. 32, fig. 3. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 197, pi. 9, figs. 3a-d. Shaler, Mem. Geol. Surv. Kentucky, 1, 1876, p. 35. Lesley, Geol. Surv. Pennsylvania, Rep. P. 4, 1889, p. 507, figs. Hebertella bellarugosa Hall and Clarke, Pal. New York, 7, pt. 1, 1892, p. 222. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 255, figs. 304d-e. Ray- mond, Ann. Carnegie Mus., 7, 1911, p. 245, pi. 36, figs. 8, 9, figs. 19, 20. Orthis (Hebertella?) bellarugosa Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 434, pi. 33, figs. 1-4. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 157. Glyptorthis bellarugosa Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 258 (gen. ref.). Black River: Mineral Point, Janesville, Neenah, etc., Wisconsin; Minneapolis, St. Paul, Cannon Falls, etc., Minnesota; Decorah and McGregor, Iowa; Curdsville, Kentucky; Baffin Land. Chazyan (Valcour): Valcour Island, New York. Hebertella borealis (Billings). Orthis borealis Billings, Canadian Nat. Geol., 4, 1859, p. 436, fig. 14; Geol. Canada, 1863, p. 129, fig. 56; p. 167, fig. 148. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 510, figs. Hebertella borealis Raymond, Ann. Carnegie Mus., 7, 1911, p. 241, figs. 13, 14. Chazyan: St. Martins Junction, near Montreal, Caughnawaga, etc., Canada (Ayl- mer); Valcour Island, New York (Valcour); East Tennessee (Lenoir). HEBERTELLA BOREALIS Hall and Clarke. See Hebertella frankfortensis. Hebertella (Glyptorthls) crlspata (Emmons). Orthis crispata Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 404, fig. 5. Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 379, fig. 5. Emmons, Amer. Geol- ogy, 1, pt. 2, 1855, pi. 17, fig. 5; Man. Geol., 1860, p. 102, fig. 5. Lesley, Geol. Surv. Pennsylvania, Rep. P.4, 1889, p. 512, figs. 592 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hebertella (Glyptorthls) crlspata Continued. Dalmanella crispata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 224. Glyptorthis crispata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 258. Cincinnatian (Pulaski): Lorraine, etc., New York. Hebertella daytonensis (Foerste). Orthis daytonensis Foerste, Bull. Sci. Lab. Denison Univ., 1885, p. 87, pi. 13, figs. 13, 20, 21. Hebertella daytonensis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Orthis (Hebertella) daytonensis Foerste, Geol. Ohio, 7, 1895, p. 575, pi. 25, figs. 13, 20, 21. Upper Medinan (Brassfield): Dayton, etc., Ohio. HEBERTELLA EXFOLIATA Raymond. See Plectorthis exfoliata. HEBERTELLA (SCHIZONEMA) FASCIATA Foerste. See Orthostrophia (Schizoramma) fasciata. Hebertella fausta (Foerste). Orthis fausta Foerste, Bull. Denison Univ., 1, 1885, p. 85, pi. 13, figs. 15, 16. Hebertella fausta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Orthis (Hebertella) fausta and var. squamosa Foerste, Geol. Ohio, 7, 1895, 573, 574, pi. 25, figs. 15a-15d, 16a, 16b; pi. 37A, figs. 19a, 19b. Upper Medinan: Dayton, Ohio (Brassfield); Ontario (Cataract). HEBERTELLA (SCHIZONEMA) FISSIPLICA Foerste. See Orthostrophia (Schiroramma) fissiplica. HEBERTELLA (SCHIZONEMA) FISSISTRIATA Foerste. See Orthostrophia (Schizoramma) fissistriata. Hebertella frankfortensls Foerste. Orthis frankfortensis James, Cat. Lower Sil. Fosa. Cincinnati Group, 1871, p. (nom. nud.). Hebertella frankfortensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, 318, pi. 7, figs, lla, b. Orthis borealis Meek, Pal. Ohio, 1, 1873, p. 101, pi. 8, fig. 4. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 28. Chamberlin, Geol. Wisconsin, 1, 1883, p. 155, fig. Lesley (part), Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 510, figs. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 36, pi. 34, figs. 14-20. Orthis (Hebertella) borealis Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 433, fig. 33. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 157. Hebertella borealis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Hayes and Ulrich, U. S. Geol. Surv. Folio 95, ill. sheet, 1903, figs. 36, 37. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 254, fig. 304a-c. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, p. 183, figs. 11, 12, 20. Trenton: Frankfort, etc., Kentucky (Wilmore); Columbia, etc., Tennessee; Virginia (Bigby); Wykoff, Minnesota (Proeser); Baffin Land. Plesiotypes. Cat. Nos. 48672, 51189, U.S.N.M, Hebertella imperator (Billings). Orthis imperator Billings, Canadian Nat. Geol., 4, 1859, p. 435, figs. 11-13; Geol. Canada, 1863, p. 129, fig. 55. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 518, figs. Hebertella imperator Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Raymond, Annals Carnegie Mus., 7, 1911, p. 243, pi. 36, figs. 6, 7. Chazyan (Aylmer): Hawkesbury 1 and Cornwall, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 593 Hobertella (Glyptorthls) Insculpta (Hall). Orthis insculpta Hall, Pal. New York, 1, 1847, p. 125, pi. 32, fig. 12. Billings, Geol. Canada, 1863, p. 167, fig. 150. Meek, Pal. Ohio, 1, 1873, p. 99, pi. 9, fig. 1. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 40. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 195, pi. 9, fig. 12. Shaler, Mem. Geol. Surv. Ken- tucky, 1, 1876, p. 30. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 520, figs. Orthia (Hebertella) insculpta Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 435. Hebertella insculpta Hall and Clarke, Pal., New York, 8, pt. 1, 1892, p. 222, pi. 5A, fig. 13. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 255, fig. 305. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 905, pi. 34, figs. 2-2d. Glyptorthis insculpta Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 258 (gen. ref.). Orthis bellarugosa (not Conrad) Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 35, fig. 22. Richmond: Oxford, etc., Ohio; Indiana; Wilmington, Illinois; Wisconsin; Iowa; Minnesota; Tennessee; etc. Hebertella latasulcata Foerste. Hebertella latasulcata Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 131, pi. 3, figs. 7a, b. Trenton (Upper): Rogers Gap, etc., Kentucky. Hebertella lonensts (Walcott). Orthis lonensis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 74, pi. 11, fig. 6. Hebertella lonensis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. Upper Pogonip: Lone Mountain, Nevada. Holotype,-^C&t. No. 17232, U.S.N.M. Hebertella maria (Billings). Orthis maria Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 137, fig. 114. (Adv. sheets, 1862.) Hebertella sinuata or maria? Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222, pi. 5A, figs. 9, 10. Richmond (English Head) and Gamachian (Ellis Bay): Gamache Bay, etc., Anticosti. Hebertella maria parkensis Foerste. Hebertella maria-parkensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 319, pi. 7, figs. 6a-b. Trenton: Between Pleasant Valley and Millersburg, etc. (Cynthiana), and Madison and Woodford Counties, Kentucky (Perry ville). Hebertella (Erldorthls) nicklesl Foerste. Plectorthis (Eridorthis) nicklesi Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 222, pi. 4, figs. 3a-d. Eridorthis nicklesi Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 132, pi. 1, figs. 5a-c. Trenton (Upper): Rogers Gap, Brent, Ivor, etc., Kentucky; Point Pleasant, Ohio. HEBERTELLA (SCHIZONEMA) NISIS Foerste. See Orthostrophia (Schizoramma) nisis. 84243 Bui*. 9215 38 594 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hebertella occlden tails Hall. Orthis occidental Hall, Pal. New York, 1, 1847, p. 127, pi. 32A, fig. 2; pi. 32B, fig. 1; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72. Billings, Geol. Canada, 1863, p. 210, fig. 210. Hebertella occidentalis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 53, pi. 2, figs. 1, 2. Maysville and Richmond: Maysville, etc., Kentucky; Cincinnati, Ohio, and vicinity; Oxford, etc., Ohio; Indiana. Observation. See also H. alveata Foerste. Hebertella occidentalis slnuata Hall. Orthis sinuata Hall, Pal. New York, 1, 1847, p. 128, pi. 32B, fig. 2. Miller, Cin- cinnati Quart. Jour. Sci., 2, 1875, p. 36. Shaler, Fossil Brach. Ohio Valley, 1876, pi. 8. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 533, figs. Orthis occidentalis var. sinuata Meek, Pal. Ohio, 1, 1873, p. 98. Hebertella sinuata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222, pi. 5A, figs. 1-8. Hayes and Ulrich, U. S. Geol. Surv., Folio 95, ill. sheet, 1903, fig. 17. Cumings, Amer. Jour. Sci. (4), 15, 1903, p. 34, footnote. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 256, fig. 306. Foerste, Bull. Sci, Lab. Denison Univ., 16, 1910, p. 52, pi. 2, fig. 5. Hebertella occidentalis sinuata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 229. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 908, pi. 34, figs. 3-3e. Maysville and Richmond: Cincinnati, Ohio, and vicinity; Kentucky; Ten- nessee; Indiana; etc. Plesiotype.C&t. No. 35398, U.S.N.M. (Hayes and Ulrich). Hebertella (Eridorthis) rogersensis (Foerste). Plectorthis (Eridorthis) rogersensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 223, pi. 14, figs. 4a-b. Trenton (Upper): Rogers Gap, Kentucky. Observation. Probably only a variety of H. nicklesi. HEBERTELLA SCOVILLI Hall and Clarke. See Plectorthis (Austinella) scovilli. HEBERTELLA SINUATA Hall and Clarke. See Hebertella occidentalia sinuata. Hebertella subjugata (Hall). Orthis subjugata Hall, Pal. New York, 1, 1847, p. 129, pi. 32C, fig. 1. Owen(?), Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, pi. 2B, figs. 4, 5. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 196. Hebertella subjugata Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 54, pi. 2, fig. 8; ibid., 17, 1912, p. 129, pi. 8, fig. 6. Trenton- Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Ten- nessee; Virginia, etc. Plesiotypes.C&t. Nos. 17885, 17891, U.S.N.M. Hebertella vulgaris Raymond. Orthis perveta Billings (not Conrad), Canadian Nat. Geol., 4, 1859, p. 434. Orthis subaequata Billings (not Billings, 1856), Canadian Nat. Geol., 1859, p. 434. Orthis gibbosa Billings, Canadian Nat. Geol., 4, 1859, p. 434. Hebertella vulgaris, Raymond, Ann. Carnegie Mus., 3, 1906, p. 501; ibid., 7, no. 2, 1911, p. 242, pi. 36, figs. 2-5, figs. 15-18, 22. Chazyan: Chazy, Valcour Island, etc., New York (Day Point Valcour); Canada (Ay liner); East Tennessee (Lenoir). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 595 HELCION ORBICULATUS D'Orbigny. See Archinacella orbiculatus. HELCION PATELLIFORMIS D'Orbigny. See Archinacella patelliformis. HELCIONOPSIS Ulrich and Scofield. Genotype: H. striata Ulrich. Helcionopsis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 821, 826. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 604. Helcionopsis striata Ulrich. Helcionopsis striata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 827, pi. 61, figs. 29 and 30. (H. fissicostata in error, p. 821.) Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 604, fig. 805a, b. Foerste, Jour. Geol., 11, 1903, p. 37. Triblidium striatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.). Richmond: Marion County, Kentucky. Maysville: Cincinnati, Ohio. Eolotype.C&t. No. 45827, U.S.N.M. Helcionopsis subcarinata Ulrich and Scofield. Helcionopsis subcarinata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 827, pi. 61, fig. 28. Trenton (Prosser): Goodhue County, Minnesota. Cotypes. Cat. No. 45828, U.S.N.M. HELENTEROPHYLLUM Grabau. Genotype: H. caliculoides Grabau. Helenterophyllum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 95. Helenterophyllum caliculoides Grabau. Helenterophyllum caliculoides Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 95, pi. 11, figs. 2-3. Upper Monroan (Anderdon): Anderdon quarry near Amherstburg, Ontario. Cayugan (Manlius): Manlius, New York. HELICOGRAPSUS Nicholson. See Nemagraptus Emmons. HELICOPORA Claypole. Genotype: H. latispiralis Claypole. Helicopora Claypole, Proc. Amer. Assoc. Adv. Sci., 30, 1881, p. 191; Quar. Jour. Geol. Soc. London, 39, 1883, p. 32. Waagen and Pichl, Pal. Indica, ser. 13, 1885, p. 774. Ulrich, Contr. Amer. Pal., 1, 1886, p. 5. Miller, N. A. Geol. Pal., 1889, p. 308. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 396. Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp. 722, 726; 47th Ann. Rep. New York State Mus., pp. 916, 920. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 282. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, pp. 517, 522. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 39. Helicopora latispiralis Claypole. Helicopora latispiralis Claypole, Proc. Amer. Assoc. Adv. Sci., 30, 1881, p. 191; Quar. Jour. Geol. Soc. London, 39, 1883, p. 32, pi. 4, figs. 1, la. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, fig. 70, 1 (p. 518). Niagaran: Cedarville, Greene County, Ohio. HELICOTOMA Salter. Genotype: H. planulata Salter. Helicotoma Salter, Canadian Org. Rem., Geol. Surv. Canada, dec. 1, 1859, p. 13. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 120. Miller, N. A. Geol. Pal., 1889, p. 405. Koken, Neues Jahrb. f. Min., Pal., 1, 1898, p. 24; Bull, de 1'Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 159. Ulrich and Scofield, Geol. Minnesota, 3, 1897, p. 1032. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 658. 596 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Helicotoma brock! Foerste. Helicotoma brocki Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 137, pi. 10, fig. 11; pi. 11, fig. 3. Richmond: Kagawong, Manitoulin Island, Lake Huron. Helicotoma declivis Ulrich. Helicotoma declivis Safford, Geol. Tennessee, 1869, p. 288 (nom. nud.). Ulrich Geol. Minnesota, 3, pt. 2, 1897, p. 1036, pi. 74, figs. 34-38. Stones River (Murfreesboro): Murfreesboro, Tennessee. Cotypes.Csit. No. 46057, U.S.N.M Helicotoma eucharis Billings. Helicotoma Eucharis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 249, fig. 234a, b. Miller, N. A. Geol. Pal., 1889, p. 405, fig. 677. Chazyan (Quebec-L, M): Table Head, Newfoundland. Helicotoma gorgonea Billings. Helicotoma Gorgonea Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 248. Canadian (Quebec H): Table Head, Newfoundland. Helicotoma granosa Ulrich. Helicotoma granosa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1035, pi. 82, figs. 32-34. Black River (Lowville): High Bridge, Kentucky. Holotype.Czt. No. 45829, U.S.N.M. HELICOTOMA LARVATA Salter. See Liospira larvata. Helicotoma marginata Ulrich. Helicotoma marginata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1036, pi. 74, fig. 39. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 963, pi. 40, fig. 10. Richmond (Elkhorn): Near Richmond, Indiana. HQlotype.Gzt. No. 45830, U.S.N.M. Helicotoma misera Billings. Helicotoma miser Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 309. Ozarkian? (Levis erratic): Point Levis, Quebec. Helicotoma missouriensis Branson. Helicotoma missouriensis Branson, Trans. Acad. Sci. St. Louis, 18, no. 4, 1909, p. 44, pi. 7, figs. 11-12. Black River (Auburn-Decorah) : Lincoln County, Missouri. Helicotoma murieata (Salter). Helicotoma planulata var. murieata Salter, Geol. Surv. Canada, dec. 1, 1859, p. 14, pi. 2, fig. 8. Helicotoma murieata Miller, N. A. Geol. Pal., 1889, p. 405. Black River (Leray): Allumette Island, Ottawa River, Canada. Helicotoma naresii Etheridge. Helicotama naresii Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 602, pi. 27, fig. 3. Niagaran: Ofiley Island, Arctic America. Helicotonia(?) peccatonica Sardeson. Helicotoma(?) peccatonica Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 97, pi. 5, figs. 1, 2. Canadian (Shakopee): Near Argyle, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 597 Helfcotoma perstrfata Billings. Helicotoma perstriata Billings, Canadian Nat. Geol., 4, 1859, p. 356. Chazyan (Mingan): Mingan Islands, Quebec. Helicotoma planulata Salter. Helicotoma planulata Salter, Can. Org. Hem., Geol. Surv. Canada, dec. 1, 1859, p. 14, pi. 2, figs. 5-7. Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 39, fig. 3; p. 439. Chamberlin, Geol. Wisconsin, 1, 1883, p. 157. Whiteaves, I Canadian Rec. Sci., 5, 1893, p. 323 (loc. occ.). Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1033, pi. 74, figs. 16-17. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 658, figs. 906h, i. Black River: Allumette Island, Ottawa River, etc. (Leray), Canada; Lincoln County, Missouri; Wisconsin; New York. Plesiotypes Cat. No. 45831, U.S.N.M. HELICOTOMA PLANULATA var. MURICATA Salter. See Helicotoma muricata. Helicotoma planulata robusta Ulrich and Scofield. Helicotoma planulata var. robusta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1033, pi. 74, fig. 15. Black River (Platteville) : Jo Daviess County, Illinois. Holotype.C&t. No. 45832, U.S.N.M. Helicotoma planulatoides Ulrich. Helicotoma planulatoides Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1034, pi. 74, figs. 28-30. Black River (Lowville): High Bridge, Kentucky; Tennessee. Holotype Cat. No. 45833, U.S.N.M. Helicotoma proserpina Billings. Helicotoma Proserpina Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 247, fig. 233. Canadian (Quebec G): Cape Norman, Newfoundland. Helicotoma slmllls Whitfield. Helicotoma similis Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 31, pi. 1, figs. 1, 2. Sardeson, Jour. Geol., 11, 1903, p. 481, fig. 19. Seely, Vermont State Geol., Rep. 7, 1910, pi. 56, fig. 2. Canadian (Beekmantown): Providence Island, Lake Champlain, Vermont. Helicotoma? spinosa Salter. Helicotoma? spinosa Salter, Geol. Surv. Canada, dec. 1, 1859, p. 15, pi. 2, figs. 9, 10. Black River (Leray) : Allumette Island, Ottawa River, Canada. Helicotoma subquadrata Ulrich. Helicotoma subquadrata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1034, pi. 70, figs. 31-33. Stones River (Murfreesboro) : Murfreesboro, Tennessee. Cotypes.C&t. No. 46058, U.S.N.M. Helicotoma tennesseensts Ulrich and Scofield. Helicotoma tennesseensis Safford, Geol. Tennessee, 1869, p. 288 (nom. mid.). Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1034, pi. 74, figs. 20-24. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 659, figs. 906j, k. Stones River (Murfreesboro): Murfreesboro, Tennessee. Cotypes. Cat. No. 46059, U.S.N.M. 598 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Helicotoma trltonla Billings. Helicotoma Tritonia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 247. Canadian (Quebec G): Cape Norman, Newfoundland. Helicotoma umbllicata Ulrich and Scofield. Helicotoma umbilicata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1034, pi. 62, fig. 68; pi. 74, figs. 25-27. Black River (Platteville) : Minneapolis and St. Paul, Minnesota; Beloit, Mineral Point, etc., Wisconsin; Dixon, etc., Illinois. Cotypes.C&t. Nos. 45834, 45835, U.S.N.M. HELICOTOMA UNIANGULATA Salter. See Ophileta uniangulata. Helicotoma uniangulata (Hall). Euomphalus uniangulatus Hall, Pal. New York, 1, 1847, p. 9, pi. 13, figs. 1, la. Straparollus uniangulatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 157. Helicotoma uniangulata Salter, Geol. Surv. Canada, dec. 1, 1859, p. 13 (gen. ref.). Ozarkian (Little Falls): Saratoga County, New York. HELICOTOMA VAGRANS Raymond. See Eccyliopterus vagrans. Helicotoma verticalis Ulrich. Helicotoma verticalis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1035, pi. 62, fig. 69; pi. 74, figs. 18, 19. Black River (Lowville): High Bridge, Kentucky. Holotype.Czt. No. 45836, U.S.N.M. Helicotoma whiteavesiana Raymond. Helicotoma whiteavesiana Raymond, Ann. Carnegie Mus., 4, 1908, p. 204, pi. 48, figs. 11, 12. Stones River (Pamelia): Aylmer, Quebec, and Hog Back, near Ottawa, Ontario. HELIOLITES Guettard. Genotype: H. interstinctus Linnaeus. Heliolites Guettard, Mem. 3, 1770, p. 454. Dana, Wilkes' U. S. Expl. Exped., 7, Zoophytes, 1840, pp. 430, 541. Edwards and Haime, Compt. Rend. 1'Acad. Sci., 29, 1849, p. 262; Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1850, pp. 149, 212. Hall, Pal. New York, 2, 1852, p. 130. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 438. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 234. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 10. Nicholson, Trans. Royal Soc. Edinburgh, 27, 1876, pp. 247-248. Lindstrom, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 13. Zittel, Handb. Pal., 1, 1879, p. 212. Nicholson, Tab. Corals Pal. Period, 1879, p. 243. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 241. Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 503. Koch, Palaeonto- graphica, 29, 1883, pp. 333, 343. Miller, N. A. Geol. Pal., 1889, p. 191. James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 4, 1893, p. 152. Koken, Die Leitfossilien, Leipzig, 1896, p. 314. Sardeson, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 10, 1896, pp. 252, 263. Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1909, p. 79. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 32, no. 1, 1909, pp. 35, 38. Kiaer, Palaeontographica, 46, 1899, p. 39; Zittel-Eastman, Pal., 1, 1900, p. 108. Grabau, Bull. New York State Mus., 45, 1901, p. 144; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 144. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 280. Kiaer, Vid-Selsk. Skrifter, Math.-naturw., 10, 1903, pp. 42, 56. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 97; Zittel-Eastman, Textb. Pal., 2d ed., 1913, p. 112. HELIOLITES AFFINIS Billings. See Lyellia afiims (Billings). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 599 Hellolltes elegans Hall. Heliolites elegans Hall, Pal. New York, 2, 1852, p. 130, pi. 36, figs, la-g. White, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 383, pi. 48, fig. 4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 273, fig. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 145, fig. 40; Bull. New York State Mus., 45, p. 145, fig. 40. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 98, fig. 157. Plasmopora elegans Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 15, pi. 3, fig. 2. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 1, figs. 11-13. Niagaran: Lockport, etc., New York (Lockport); Michigan; Indiana; Kentucky. HELIOLITES EXIGUUS Billings. See Lyellia exigua. Heliolites inordinatus (Lonsdale). Porites inordinata Lonsdale, In Murchison, Sil. Syst., 1839, p. 687, pi. 16 bis, figs. 12a-c. Heliolites inordinata Milne-Edwards and Haime, Polyp. Foss. des Terr. Paleoz., 1851, p. 217; British Foss. Corals, 1855, p. 253, pi. 57, figs. 7, 7a. Lambe, Contr. Canadian Pal., Geol. Surv. Canada, 1889, 4, pt. 1, p. 81. Silurian: England and Ireland. Helderbergian (?Silurian): West of PAnse a la Barbe and FAnse a la Vieille, Bale des Chaleurs, Canada. Heliolites inters tlnctus (Linnaeus). Madrepora interstincta Linnaeus, Syst. Nat., 12th ed., 1767, p. 1267. Heliolites interstincta Edwards and Haime, Mon. British Foss. Corals, Pal. Soc., 1854, p. 249, pi. 57, figs. 9-9d; Polyp. Foss. Terr. Pal., 1851, p. 214. Roemer, Sil. Fauna West. Tennesee, 1860, p. 23, pi. 2, fig. 5, 5a. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 305, fig. 301. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 12, pi. 1, fig. 1. Hall, 12th Ann, Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 252, pi. 2, figs. 1-3. Nicholson, Sil. Foss. Girvan Dist., 1880, pp. 57, 254, pi. 16, figs. 1-4. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 506, pi. 9, figs. 3a-3c. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 1, figs. 3, 4. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 273, figs. Miller, N. A. Geol. Pal., 1889, p. 192, fig. 181. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 47 (loc. occ.). Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 79, pi. 2, figs. 6, 6a Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 41, pi. 1, figs. 1-36; pi. 2, figs. 1, 2; pi. 3, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 97, fig. 156, 158a, b. Silurian: Europe. Numerous localities in the Upper Medinan and Niagaran of North America. Heliolites? macrostylus Hall. Heliolites macrostylus Hall, Pal. New York, 2, 1852, p. 135, pi. 36A, figs. 2a-c. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 252. Lind- strom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 67. Niagaran (Racine) : Milwaukee, Wisconsin. Heliolites megastoma (McCoy). Porites megastoma McCoy, Sil. Foss. Ireland, 1846, p. 62, pi. 4, fig. 9f. Palseopora megastoma McCoy, British Pal. Foss., 1854, p. 16, pi. Ic, fig. 4. Heliolites megastoma Edwards and Haime, Mon. British Foss. Corals, Pal. Soc., 1854, p. 251, pi. 58, figs. 2-2d. Rominger, Geol. Surv. Michigan, 3, pt. 2, 600 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Heliolites megastoma Continued. 1876, p. 11, pi. 1, fig. 3. Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 581. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 1, figs. 1, 2. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 97. Silurian: Great Britain; New York; Canada; Michigan; Iowa; Wisconsin; Arctic America (Niagaran). HELIOUTES MICROPOEUS Eichwald. See Heliolites subtubulatus. HELIOLITES MURCHISONI Milne-Edwards. See Heliolites subtubulatus. Heliolites perelegans Whitfield. Heliolites perelegans Whitfield, Amer. Mus. Nat. Hist., 13, 1900, p. 21, pi. 1, fig. 2. Niagaran: Cape Harrison, Princess Marie Bay, Greenland. Heliolites pyriformis Guettard. Heliolites pyriformis Guettard, Mem. 3, 1870, p. 454. Hall, Pal. New York, 2, 1852, p. 133, pi. 36A, fig. la-m. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 11, pi. 1, fig. 2. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 246. Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 1, figs. 5, 6. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 67. Grabau, Bull. New York State Mus., 45, 1901, p. 146, fig. 42. Niagaran: Lockport, etc., New York (Lockport); Drummonds Island, Lake Huron; Iowa; Wisconsin; Kentucky. Heliolites shepardi James. Not recognized. Heliolites shepardi James, Paleontologist, No. 1, 1878, p. 2; Jour. Cincinnati Soc. Nat. Hist., 15, pt. 4, 1893, p. 152. Richmond?: Brush Creek, Adams County, Ohio. HELIOLITES SPARSUS Billings. See Plasmopora petaliformis. HELIOLITES SPECIOSUS Billings. See Lyellia speciosus. Heliolites spiniporus Hall. Heliolites spinipora Hall, Pal. New Y3rk, 2, 1852, p. 131, pi. 36, fig. 2a-n. Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig. Grabau, Bull. New Y< State Mus., 45, 1901, p. 145, fig. 41; Bull. Buffalo Soc. Nat. Sci., 7, 1901, 145, fig. 41. Niagaran: Lockport, New York (Lockport); Wisconsin (Racine). Heliolites spougiosus Foerste. Heliolites spongiosa Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 303, pi. fig. 3; pi. 4, fig. 6; and pi. 5, fig. 5. Clinton (Waco): Near Irvine, Kentucky. Heliolites subtubulatus (McCoy). Palaeopora interstincta var. subtubulata McCoy, British Pal. Foss., 1851, p. pi. 1, Ic, figs. 2a-b. Heliolites subtubulatus Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. pi. 1, fig. 4. Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt. 1885, pi. 1, figs. 7, 8. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. Geol. Surv. Ohio, Pal. 7, 1893, p. 601. Lambe, Contr. Can. Pal., Geol. Si Canada, 4, pt. 1, 1899, p. 80, pi. 2, figs. 7, 7a. Foerste, Bull. Kentucky G< Surv., 7, 1906, p. 304, pi. 3, figs. 5a, b. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 601 Hellolites subtubulatus Continued. Heliolitea Murchisoni Milne-Edwards and Haime, British Foss. Corals, 1855, p. 250, pi. 57, figs. 6a-c; Polyp. Foss. dea Palaeoz., 1851, p. 215. Heliolitea microporus Eichwald, Leth. Iloaaica, 1860, p. 454, pi. 25, figa. 7a-c. Silurian: Europe, Canada, Michigan, Iowa, Kentucky, Tenneasee, Ohio, etc. (Niagaran). Hellolites subtubulatus distans Foerste. Heliolites subtubulata-distans Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 3-5, pi. 3, fig. 5B. Clinton (Waco): Near Waco and near Irvine, Kentucky. Heliolites subtubulatus nucella Foerate. Heliolites subtubulata-nucella Foerate, Bull. Kentucky Geol. Surv., 7, 1906, p. 305, pi. 3, fig. 5A. Clinton (Waco): North of Estill Springs, Kentucky. HELIOLITES TENUIS Billings. See Protarea tenuis. HELIOLITES VETUSTA Hall. See Protarea vetusta. HELIOMERA Raymond. Genotype: Cheirurus sol Billings. Heliomera Raymond, Amer. Jour. Sci., 20, 1905, p. 381. Hellomera sol (Billings). Cheirurua sol Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 288, fig. 276. Heliomera sol Raymond, Amer. Jour. Sci., 20, 1905, p. 381; Ann. Carnegie Mus., 7, no. 1, 1910, p. 77, pi. 18, fig. 12, fig. 9; 7th Rep., Vermont State Geol., 1910, p. 245, pi. 38, fig. 12. Perkins, Rep. Vermont State Geol., 8th ser., 1912, pi. 18, fig. 12. Chazyan: Table Head and four miles northeast Portland Creek, Newfoundland (Quebec-N., P.); Chazy, New York (Day Point). HELIOPHRENTIS Grabau. Genotype: H. alternata Grabau. Heliophrentis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 98. Hellophrentls alternata Grabau. Heliophrentis alternatum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 99, pi. 12, figs. 2, 3. Upper Monroan (Amherstburg): Detroit River, near Amherstburg, Ontario. Heliophrentis alternata compressa Grabau. Heliophrentis alternatum mutation compressa Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 100, pi. 13, figs. 4, 5. Upper Monroan (Amherstburg): Detroit River bed, opposite Amherstburg, Ontario. Heliophrentis alternata magna Grabau. Heliophrentis alternatum mut. magna Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 101, pi. 13, fig. 6. Upper Monroan (Amherstburg): Detroit River bed, opposite Amherstburg, Ontario. Hellophrontis carinata Grabau. Heliophrentis carinatum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 101, pi. 12, fig. 2; pi. 13, fig. 7. Upper Monroan: Near Amherstburg, Ontario, and Wayne County, Michigan (Amherstburg); Monroe County, Michigan (?Lucas). 602 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HELIOPHYCUS Miller and Dyer. Genotype: H. stelliforme Miller and Dyer. Heliophycus Miller and Dyer, Cont. to Pal., no. 2, 1878, p. 2. James, Jour. Cin- cinnati Soc. Nat. Hist., 7, 1885, p. 163. Miller, N. A. Geol. Pal., 1SSO, p. 119. Heliophycus stelliforme Miller and Dyer. Heliophycus stelliforme Miller and Dyer, Contr. to Pal., no. 2, 1878, p. 2, pi. 3. fig. 3. Miller, N. A. Geol. Pal., 1889, p. 120, fig. 39. Maysville (Fainnount): Cincinnati, Ohio. HELIOPHYLLUM Dana. Genotype: H. halli Edwards and Haime. Heliophyllum Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, Zoophytes, 1846, p. 356, pi. 26, figs. 3, 4; Amer. Jour. Sci. and Arts, 2d ser., 1, 1846, p. 183. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 170; p. 408. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 457. Billings, Canadian Jour., n. s., 4, 1859, p. 124. Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 401. Ludwig, Palaeontographica, 10, 1862, p. 183; p. 192. Dybowski, Archiv. f. Naturf. Liv-, Ehst- und Kurl., 5, 1873, p. 339. Nicholson, Canadian Nat., n. s., 7, 1874, p. 141; Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 24; Geol. Mag., dec. 2, 1, 1874, p. 58. Nicholson and Thomson, Proc. Roy. Soc. Edinburgh, 9, 1876, p. 149. Nicholson, Ann. Mag. Nat. Hist., ser. 5, 1, 1878, p. 44. Zittel, Handb. Pal., 1, 1879, p. 231. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 342. Freeh, Pal. ALha^dl. Dames and Kayser, 3, Heft 3, 1886, p. 53. Miller, N. A. Geol. Pal., 1889, p. 192. Sherzer, Amer. Geol., 6, 18CO; p. 60; 7, 1891, pp. 2CO-295. Koken, Die Leitfossilien, Leipzig, 1896, p. 310. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 124. Heliophyllum dentilineatum Hall. Heliophyllum dentilineatum Hall, 35th Rep. New York State Mus. Nat. Hist. (ext. 1882, p. 13), 1884, p. 417. Niagaran (?Louisville): Louisville, Kentucky. Heliophyllum flos Greene. Heliophyllum flos Greene, Cont. Indiana Pal., pt. 3, 1899, p. 18, pi. 7, figs. Niagaran (Louisville): Louisville, Kentucky. Heliophyllum gemmiferum Hall. Heliophyllum gemmiferum Hall, 35th Rep. New York State Mus. Nat. (ext. 1882, p. 13), 1884, p. 417. Niagaran (?Louisville): Near Louisville, Kentucky. Heliophyllum mltellum Hall. Heliophyllum mitellum Hall, 35th Rep. New York State Mus. Nat. Hist., p. 418. (Ext. 1882). Niagaran (?Louisville): Louisville, Kentucky. Heliophyllum pegramense Foerste. Heliophyllum pegramensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1C( p. 100, pi. 3, fig. 58a, b. Niagaran (Brownsport): Pegram, Tennessee. Heliophyllum pravum Hall. Heliophyllum pravum Hall, 12th Ann. Rep. Indiana, Dep. Geol. Nat. Hist. 1883, p. 274, pi. 15, fig. 12; pi. 25, fig. 4; 35th Rep. New York State l.Ius. Nat. Hist. (ext. 1882, p. 13) p. 417. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 280, figs. Niagaran (Louisville): Louisville, Kentucky. BIBLIOGRAPHIC LIST OF GENERA. AND SPECIES. 603 Heliopliyllum puteatum Hall. Heliophyllum puteatum Hall, 35th Rep. New York State Mus. Nat. Hist. (cxt. 1882, p. 14), 1884, p. 418. Niagaran (?Louisville): Louisville, Kentucky. HELLIPORA (CONSTELLARIA) ANTHELOIDEA Rominger. See Constellaria florida. HELMINTHOLITUS Linnaeus. See Conchidium Linnaeus. HELOCERAS Barrande. See Cycloceras McCoy. HELOPORA Hall. Genotype: H. fragilie Hall. Helopora Hall, Amer. Jour. Sci., 2d ser., 11, 1851, pp. 388, 389; Pal. New York, 2, 1852, p. 44. Billings, Cat. Sil. Fosa. Anticosti, p. 36. Ulrich, Amer. Geol., 1, 1888, p. 231 Miller, N. A. Geol. Pal., 1889, p. 308. Ulrich, Geol. Surv. Illinois, 8, 18CO, pp. 401, 642; Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 191; Geol. Minnesota, 3, 1893, p. 189. Pocta, Syst. Sil. Centre Boheme., 8, pt. 1, 1894, p. 8. Zittel's Textb. Pal. (Engl. ed.), 1896, p. 280. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 548. Nickles and Bassler, Bull. U. S. Geol. Surv., no. 173, 1COO, p. 42. Gra'.au, Bull. New York State Mus., 45, 1901, p. 172; Bull. Buffalo Soc. Nat. Sci., 7, 1C01, p. 172. Hennig, Archiv. fur Zool., K. Sven. Vet.-Akad. Stockholm, 3, 1C06, p. 18. Grabau and Shimer, N. A. Index Fossils, 1, p. 152. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 747. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 149; Zittel-Eastman Textb. Pal., 1913, p. 342. Helopora alternata Ulrich. Helopora alternata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 18CO, p. 192, fig. IGf ; Geol. Minnesota, 3, 1893, p. 192, pi. 3, fig. 9. Black River (Decorah): Minneapolis, Minnesota. Holotype.C&t. No. 43566, U.S.N.M. Helopora approximata James. Not recognized. Helopora approximata James, Paleontologist, no. 1, 1875, p. 3. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 39. Eden: Cincinnati, Ohio. Observation. Founded on some Bythopora (probably B. arctiporal with a bulbous extremity due to irregular growth. Helopora armata Billings. Helopora armata Billings, Cat. Sil. Foss. Anticosti, 1866, p. 38. Anticostian (Jupiter River): East Point, Anticosti. Helopora bellula Billings. Helopora bellula Billings, Catal. Sil. Foss. Anticosti, 1866, p. 38. Anticostian (Gun River and Jupiter River): East Point, etc., Anticosti. HELOPORA CIRCE Billings. See Chilotrypa circe. Helopora concava Billings. Helopora concava Billings, Catal. Sil. Foss. Anticosti, 1866, p. 37. Anticostian (Becsie River Jupiter River): East Jupiter River, East Point, etc., Anticosti. HELOPORA DENDRINA James. See Bythopora dendrina. Helopora divarlcata Ulrich. Helopora divaricata Ulrich, 14th Ann. Rep. Geol. Minnesota, 1886, p. 59; Geol. Minnesota, 3, 1893, p. 191, pi. 3, figs. 1-3. Bassler, Bull. U. S Nat. Mus., 77, 1911, pp. 149, 150, fig. 72. 604 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Helopora dlyarlcata Continued. Elack River (Decorah): Minneapolis, etc., Minnesota. Middle Ordovician (Kuckers): Esthonia, Russia. Cotypes.CsA. No. 43568, U.S.N.M. Helopora elegans Ulrich. Helopora elegans Ulrich, Geol. Minnesota, 3, 1893, p. 194, fig. 11. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 837, pi. 29, fig. 9. Richmond (Whitewater): Blanchester, Oxford, etc., Ohio; Richmond and Ver- sailles, Indiana. Holotype Cat. No. 43566, U.S.N.M. Helopora formosa Billings. Helopora formosa Billings, Catal. Sil. Foss. Anticosti, 1866, p. 37. Helopora nodosa Billings, Catal. Sil. Foss. Anticosti, 1866, p. 38. Nematopora formosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 645. Gamachian (Ellis Bay) and Anticostian (Becsie River-Jupiter River): East Point, East Jupiter River, East River, etc., Anticosti. Helopora fragilis Hall. Helopora fragilis Hall, Pal. New York, 2, 1852, p. 44, pi. 18, figs. 3a-f. Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 141. Nicholson, Pal. Province Ontario, 1875, p. 44, fig. 19, figs. 3, 3a. Ulrich, American Geol., 1, 18SS, p. 233, fig. 2a-e. Miller, N. A. Geol. Pal., figs. 485a-e, 486 (p. 308). Ulrich, Geol. Surv. Illinois, 8, p. 642, figs. 18a-e (p. 643), pi. 29, fig. 5a. Grabau, Bull. New York State Mus., 45, 1901, p. 173, fig. 74; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 173, fig. 74. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 152, fig. 207. Upper Medinan (Cataract): Western New York; Flamborough Head, etc., Ontario. Lower Clinton: Wayne County, etc., New York. Plesiotype.Cat. No. 43369, U.S.N.M. Helopora fragilis acadiensis Hall. Not defined. Helopora fragilis var. acadiensis Hall, Canadian Nat. Geol., 5, 1860, p. 159. Silurian: Nova Scotia. Helopora harrisi James. Helopora harrisi James, Paleontologist, No. 7, 1883, p. 58, pi. 2, figs. 2-2b. Ulrich, Contr. Micro-Pal. Cambro-SiL, pt. 2, 1889, p. 45; Geol. Minnesota, 3, 1893, p. 195, pi. 3, figs, lib, c, 12. Whiteaves, Pal. Foss., 3, pt. 2, 1895, p. 117. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 113-115 (p. 548). Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 40, pi. 7, fig. 8. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 837, pi. 29, figs. 10-10b. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 343, fig. 501f. Richmond: Waynesville. etc., Ohio; Indiana (Waynesville, Liberty); ?Stony Mountain, Manitoba. Plesiotypes.Czt. No. 43569, U.S.N.M. Helopora imbricata Ulrich. Helopora imbricata Ulrich, Geol. Surv. Illinois, 8, 1890, p. 644, pi. 29, fig. 5. Richmond: Wilmington, Illinois (Fern vale); Charleton Point, etc., Anticosti (Charleton). Observation. This form may be the tertiary segments of Arthroclema an< Ulrich. HELOPORA IRREGULARIS Billings. See Trematopora irregularis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 605 HELOPORA LINEATA Billings. See Nematopora lineata. Eelopora lineopora Billings. Helopora lineopora Billings, Catal. Sil. Foss. Anticosti, 1866, p. 38. Nematopora? lineopora Ulrich, Geol. Surv. Illinois, 8, 1890, p. 645. Gamachian (Ellis Bay) and Anticostian (Gun Paver): East of Jupiter River, etc., Anticosti. HELOPORA MEEKI James. See Dicranopora meeki. Helopora mucronata Ulrich. Helopora mucronata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 192, figs., fig. IGe; Geol. Minnesota, 3, 1893, p. 193, pi. 3, 10. Trenton (Prosser): Cannon Falls and St. Paul, Minnesota. Cotypes.Cxt. No. 43677, U.S.N.M. HELOPORA NODOSA Billings. See Helopora formosa. HELOPORA PARVULA James. See Bythopora parvula. Helopora quadrata Ulrich. Helopora quadrata Ulrich, Geol. Minnesota, 3, 1893, p. 193, fig. 10. Trenton (Prosser): Cannon Falls, Minnesota. Cotypes.C&t. No. 43567, U.S.N.M. Helopora spiniformls (Ulrich). Arthroclema spiniformis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 161, pi. 6, figs. 10, lOa. Helopora spiniformis Ulrich, Geol. Minnesota, 3, 1893, pi. 3, figs. 4, 5, 6; ZitteFs Textb. Pal. (Engl. ed.), 1896, fig. 469 (p. 283). Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 152, fig. 205j. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 343, fig. 502. Stones River (Lebanon): Lebanon, Lavergne, etc., Tennesee. Cotypes. Cat. No. 43665, U.S.N.M. HELOPORA STRIATOPORA Billings. See Thamniscus striatopora. HELOPORA STRIGOSA Billings. See Glauconome strigosa. HELOPORA TENTHS James. See Arthrostylus tenuis. HELOPORA VARIPORA Billings. See Lioclema variporum. HEMICOSMITES Hall. See Ccelocystis Schuchert. HEMICRYPTURUS Green. See Asaphus Brongniart. HEMICRYPTURUS CLINTONI Van Ingen. See Calymene clintoni. HEMICYSTIS Haeckel. See Hemicystites Hall. HEMICYSTITES Hall. Genotype: H. parasiticus Hall. Hemicystites Hall, Pal. New York, 2, 1852, pp. 245, 355. Chapman, Canadian Jour., n. s., 2, 1857, p. 304. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 305. Hall, Pal. New York, 3, 1859, p. 152; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 81. Zittel, Handb. Pal., 1, 1879, p. 414. Miller, N. A. Geol. Pal., 1889, p. 252. Jaekel, Stammes. Pelmat., 1, 1899, p. 49. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 207. Zittel, Grundzuge Pal., 1, 1910, p. 182. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 473. Eemicystia Haeckel, Amphorideenu. Cystoideen, Leipzig, 1896, p. 111. 606 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HEMICYSTITES Continued. Cystaster Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, footnote, pi. 6 (adv. sheets 1871). Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 43. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 207, fig. 2. (Genotype: Hemicystites granulatus Hall.) Thecoc^stis Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 43. (Genotype: T. sacculus Jaekel.) Hemicystites billings! (Chapman). Agelacrinus billingsi Chapman, Canadian Jour., 5, 1860, pp. 358, 204. Hemicystites (Agelacrinites) Billingsii Sladen, Quart. Jour. Geol. Soc., 35, 1879, p. 750. Agelacrinites Billingsi Chapman, Ann. Mag. Nat. Hist., 3d ser., 6, 1860, p. 157, fig. Billings, Canadian Jour., n. s., 6, 1861, p. 516, fig. 86. Chapman, ibid., n. s., 8, 1863, p. 199, fig. 180; Expos. Min Geol. Canada, 1864, p. 110, fig. 86; p. 171, fig. 180. Hemicystites Billingsi Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 49 (gen. ref.). Trenton (?Curdsville): Peterboro, Ontario. Hemicystites carnensis Foerste. Hemicystites carnensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 455, pi. 3, fig. 2. Trenton (Upper): Carntown, Kentucky. Hemicystites (Cystaster) granulatus Hall. Hemicystites (Cystaater) granulatus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, pi. 6, figs. 1-4 (adv. sheets 1871). Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 54, pi. 3, figs. 9a, b. Hemicystites granulatus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 473, fig. 1784c. Hemicystis granulata Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. p. 112, pi. 3, figs. 27, 28. Thecocystis sacculus Jaekel, Stammesges. Pelmat., 1, 1899, p. 43, pi. 1, figs, la, b. Cystaster granulatue Jaekel, ibid., p. 44, pi. 1, fig. 2. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 206, fig. 2. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, pi. 6, fig. 5. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Hemicystites parasiticus Hall. Hemicystites parasitica Hall, Pal. New York, 2, 1852, p. 246, pi. 51, figs. 18-20. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 305, pi. 99, fig. 25. Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1868, footnote, p. 357. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, 1899, Berlin, p. 49. Agelacrinus parasitica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 81 (gen. ref.). Clinton (Rochester): Lockport, New York. Hemicystites stellatus Hall. Hemicystites stellatus Hall, 24th Rep. New York State Cab. Nat. Hist., 1871, pi. 2, fig. 5, 6. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 52, pi. 3, figs. 8a, b. Miller, N. A. Geol. Pal., 1889, p. 252, fig. 328. Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 49. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 473, fig. 1784a. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, pi. 6, fig. 6. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 607 Hemicystltes stellatus Continued. Agelacrinus (Hemicystites) stellatus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 215, pi. 6, figs. 5, 6 (adv. sheets, 1866). Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. HEMIGYRASPIS Raymond. Genotype: Asaphus affinis McCoy. P Hemigyraspis Raymond, Ann. Carnegie Mus., 7, no. 1, 1910, p. 41; Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 117; Zittel-Eastman Textb. Pal., 1913, p. 719. Hemigyraspis collieana Raymond. Asaphus marginalis Collie (not Hall), Bull. Geol. Soc. Amer., 14, 1903, p. 413. Hemigyraspis collieana Raymond, Ann. Carnegie Mus., 7, 1910, p. 41, pi. 14, figs. 9-13. Canadian (Beekmantown) : Bellefonte, Pennsylvania. Hemigyraspis liquensis (Hoek). Ogygia liquensis Hoek, Neues Jahrb. Min., Geol. Pal., 34, 1912, p. 230, pi. 14. Lowest Ordovician: Near Camargo, Bolivia. Hemigyraspis mcconnelli Raymond. Hemigyraspis mcconnelli Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 40, pi. 4, fig. 4. Hemigyraspis sp. Raymond, Trans. Roy. Soc. Canada, 5, 1912, pi. 3, fig. 7. Lower Ordovician (Ceratopyge beds): Three miles east of Golden, British Columbia. Hemigyraspis plana (Matthew). Asaphellus(?) planus Matthew, Bull. Nat. Hist. Soc. New Brunswick, no. 20, 1902, p. 419, pi. 18, fig. 11; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903, p. 237, pi. 18, fig. 11. Canadian (Bretonian. Div. C 3c2): McLeod Brook, Boisdale, Cape Breton, Nova Scotia. HEMIPHRAGMA Ulrich. Genotype: Batostoma irrasum Ulrich. Batostoma (in part) Ulrich, Geol. Surv. Illinois, 8, 1890, p. 379. Hemiphragma Ulrich, Geol. Minnesota, 3, 1893, p. 299; Zittel's Textb. Pal. (Engl. ed.), 1896, p. 275. Simpson, 14th Ann. Rep. State Geol. New York, 1894, 1897, p. 592. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 35. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 281, 282; Zittel-Eastman Textb. Pal., 1913, p. 338. Hemiphragma imperfectum (Ulrich). Batostoma imperfectum Ulrich, Geol. Surv. Illinois, 8, 1890, p. 460, pi. 25, figs. 3-3d Hemiphragma imperfectum Ulrich, Geol. Minnesota, 3, 1893, p. 301. Monticulipora imperfectum J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 196. Richmond (Fernvale) : Wilmington, Illinois; Tennessee; Texas. Sections of cofypes. Cat. No. 44061, U.S.N.M. Hemiphragma Irrasum (Ulrich). Batostoma irrasa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 94. Hemiphragma irrasum Ulrich, Geol. Minnesota, 3, 1893, p. 299, pi. 24, figs. 5-19; Zittel's Textb. Pal. (Engl. ed.), 1896, fig. 460 (p. 275). Simpson, 14th Ann. Rep. State Geol. New York for the year 1894, 1897, figs. 190-193 (p. 592). Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 284-286, figs. 172, 173; Zittel- Eastman Textb. Pal., 1913, p. 338, fig. 493. 608 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hemiphragma irrasum Continued. Black River (Decorah) and Trenton (Prosser): Minneapolis, etc., Minnesota; Decorah, Iowa; Wisconsin; etc. Middle Ordovician (Orthoceras limestone): Baltischport, Russia. Cotypes and plesiotype.C&t. Nos. 43564, 57417, U.S.N.M. Hemiphragma ottawaense (Foord). Batostoma Ottawaense Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 18, pi. 2, figs. 1-lf. Hemiphragma ottawaense Ulrich, Geol. Minnesota, 3, 1893, p. 300, pi! 24, figs. 1-4. Batostoma (Hemiphragma) ottawaense Sardeson, Jour. Geol., 9, 1901, p. 13. Black River and Trenton: Ottawa and Paquettes Rapids, Ottawa River, Canada; Kenyon, Berne, and Mantorville, Minnesota. Hemiphragma tenuimurale Ulrich. Hemiphragma tenuimurale Ulrich, Geol. Minnesota, 3, 1893, p. 301, pi. 24, figs. 2.3-23. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 282, 283, figs. 170, 171. Batostoma (Hemiphragma) tenuimurale Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 137, fig. 1901. Trenton (Prosser): Goodhue County, Minnesota; Iowa. Middle Ordovician (Wassalem): Uxnorm, near Reval, Esthonia, Russia. Cotypes and plesiotype.Czt. Nos. 43563, 57416, U.S.N.M. Hemiphragma whitfieldi (James). Monticulipora (Chaetetes) whitfieldi James, Paleontologist, no. 5, 1881, p. 34. Monticulipora whitfieldi James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 178. J. F. James, ibid., 16, 1894, p. 200. Batostoma (Hemiphragma) whitfieldi Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 137. Hemiphragma whitfieldi Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 286. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 40, p. 8, figs. 15, 16: pi. 4, figs. 1-4; pi. 5, fig. 5. Eden (Economy, Southgate): Cincinnati, Ohio, and vicinity. Plesiotypes.G&t. No. 35393, U.S.N.M. HEMIPRONITES Meek and Hayden. See Strophomena Rafinesque. HEMEPRONITES AMERICANUS Whitfield. See Clitambonites diversus. HEMIPRONITES APICALIS Whitfield. See Polytoechia apicalis. HEMEPRONITES FILITEXTUS Miller. See Strophomena neglecta. HEMIPRONITES PROPINQUUS Meek and Worthen. See Schuchertella proprinqua. HEMIPRONITES SUBPLANUS Meek and Worthen. See Schuchertella propinqua. HEMEPRONITES SUBTENTA Miller. See Strophomena planumbona subtenta. Hemisterias Rafinesque. Notrecognij Hemisterias Rafinesque, Bull. Soc. Geol. France, 10, 1839, p. 381. Binney Tryon's Complete Writings of Constantine Smaltz Rafinesque on Recent and Fossil Conch., 1864, p. 90. Hemisterias quadriloba Rafinesque. Hemisterias quadriloba Rafinesque, Binney and Tryon's Complete Writings Constantine Smaltz Rafinesque on Recent and Fossil Conch., 1864, p. 90, fig. Silurian??: Pennsylvania. HEMITHIRIS INCREBESCENS D'Orbigny. See Rhynchotrema insequivalve. HEMITHIRIS SUBTRIGONALIS D'Orbigny. See Rhynchotrema iubtrigonale. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 609 HEMITRYPA Phillips. Genotype IT. oculata Fnillips. Hemitrypa Phillips, Pal. Foss., 1841, p. 27, McCoy, Synop. Carb. Foss. Ireland, 1844, p. 204. Pictet, TraitS de Paleontologie, 2d ed., 4, 1857, p. ICG. Hall, 26th Ann. Rep. New York State Mus., 1874, p. 97; Rep. State Geol. New York for the year 1884, 1885, p. 36. Ulrich, Contr. Amer. Pal., 1, 1886, p. 4. Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 152. Hall and Simp- eon, Pal. New York, 6, 1887, p. xxiii. Miller, N. A. Geol. Pal., 1889, p. 309. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 396, 559. Cole, Sci. Proc. Roy. Dublin Soc., n. s., 8, 1893, p. 132. Pocta, Syst. Sil. Boheme, 8, pt. 1, 1894, p. 92. Whidborne, Devon Fauna England (Pal. Soc. Publ.), 2, pt. 4, 1895, p. 177. Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp. 710, 726; 47th Ann. Rep. New York State Mus., 1895, pp. 904, 920. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 282. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, pp. 507, 520. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 39. Cumings, Amer. Jour. Sci., 17, 1904, p. 49; 30th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1906, p. 1281. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 341. HEMITRYPA DUBIA Hall. See Loculipora ambigua Hall. Hemitrypa ulrlchi Foerste. Hemitrypa ulrichi Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 152; ibid., 3, 1888, pi. 15, fig. 2; Geol. Surv. Ohio, 7, 1895, p. 599, pi. 28, fig. 2. Upper Medinan (Brassfield): Near New Carlisle, Ohio. HERCOCRINUS Hudson. Genotype: H. elegans Hudson. Hercocrinus Hudson, Bull. New York State Mus., 107, 1907, p. 125. Zittel, Grundzuge Pal., 1, 1910, p. 191. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 549. Hercocrinus elegans Hudson. Hercocrinus elegans Hudson, Bull. New York State Mus. Nat. Hist., 1907, 107, p. 125, pi. 9, and text fig. 6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 549. Chazyan (Valcour): Valcour Island, Lake Champlain, New York. Hercocrinus ornatus Hudson. Hercocrinus ornatus Hudson, Bull. 107, New York State Mus., 1907, p. 127, pi. 10, and text fig. 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 549. Chazyan (Valcour): Valcour Island, Lake Champlain, New York. HERCYNELLA Kayser. Genotype: H. beyrichi Kayser. Hercynella Kayser, Abhand. Geol. Specialk. Preus. Thur. Staaten, 2, 1878, p. 101. Barrande, Syst. Sil., 4, pt. 3, 1911, p. 270. Hercynella buffaloensis O'Connell. Hercynella buffaloensis O'Connell, Bull. Buffalo Soc. Nat. Sci., 11, No. 1, 1914, p. 96, pi., figs. 1-3. Cayugan (Bertie): North Buffalo, New York. Hercynella canadensis Grabau. Hercynella canadensis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 195, pi. 25, figs. 5, 6. Upper Monroan ( Amherstburg) : Detroit River region of Michigan and Ontario. Hercynella patelliformis O'Connell. Hercynella patelliformis O'Connell, Bull. Buffalo Soc. Nat. Sci., 11, No. 1, 1914, p. 97, pi., figs. 4-6. Cayugan (Bertie): North Buffalo, New York. 84243 Bull. 9215 39 610 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HERMATOSTROMA Nicholson. Genotype: H. schluteri Nicholson. Hermatostroma Nicholson, Mon. British Strom., Pal., Soc., 1886, p. 105; ibid., 1892, pp. 218, 219. Parks, Univ. Toronto Studies, Geol. Ser., no. 4, 1907, p. 34. Zittel-Eastman Pal., 2d ed., 1913, p. 123. Hermatostroma guelphica Parks. Hermatostroma guelphica Parks, Univ. Toronto Studies, Geol. Series, no. 4, 1907, p. 34, pi. 4, figs. 1, 2; pi. 6, fig. 4, 3. Niagaran (Guelph): Elora, Ontario. HERPETOCRINUS Salter. See Myelodactylus Hall. HETEROCRINITES SIMPLEX Troost. See Ectenocrinus canadensis. HETEROCRINUS Hall. Genotype: H. heterodactylus Hall. Heterocrinus Hall, Pal. New York, 1, 1847, p. 278. D'Orbigny, Prodr. de Pal., 1, 1849, p. 24. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 223. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 271. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 329. Billings, Geol. Surv. Canada, dec. 4, 1859, p. 48, fig. 16. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 376. Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 147. Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 210 (adv. sheets 1866). Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 1. Zittel, Handb. Pal., 1, 1879, p. 358. Carpenter, Phil. Trans. Royal Soc. London, 174, 1884, p. 933. Wachsmuth and Springer (part), Proc. Acad. Nat. Sci. Philadelphia, 3, 1886, pp. 127, 129 (Rev. Pal., pt. 3, sec. 2, pp. 187, 203, 205); ibid., 1890, pp. 355-390. Miller, N. A. Geol. Pal., 1889, p. 252. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 6; pi. 15, figs.Sa, b. Bather, Kongl. Sv. Vet. Akad. Handl., 25, 1893, p. 25, fig. 6; Nat. Sci., 12, 1898, p. 343; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 146, fig. 58, 2. Wachsmuth, Zittel- Eastman Textb. Pal., 1, 1900, p. 152. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 713. Grabau and Shimer, N. A. Index Fos- sils, 2, 1910, p. 501. Springer, Geol. Surv. Canada, Mem. 15P, 1911, p. 27; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 212. Stenocrinus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. Ill, 127, 130, 131 (Rev. Pal., 3, sec. 2, pp. 187, 203, 206, 207)*. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 146. Zittel, Grundzuge Pal., 1, 1910, p. 151. (Genotype: Heterocrinus heterodactylus Hall.) HETEROCRINUS ARTICULOSUS Billings. See Cremacrinusarticulosus. HETEROCRINUS BELLEVILLENSIS W. R. Billings. See Ohiocrinus belle villensis. HETEROCRINUS CANADENSIS Billings. See Ectenocrinus canadensis. HETEROCRINUS CONSTRICTUS Hall. See Ohiocrinus constrictus. HETEROCRINUS CONSTRICTUS var. COMPACTUS Meek. See Ohiocrinus compactus. HETEROCRINUS CONSTRICTUS var. CONTRACTUS Wachsmuth and Springer. See 01 crinus compactus. HETEROCRINUS CRASSUS Meek and Worthen. See locrinus crassus. HETEROCRINUS DECADACTYLUS Emmons. See Glyptocrinus decadactylus. HETEROCRINUS EXIGUUS Meek. See Heterocrinus exilis exiguus. Heterocrinus exilis Hall. Heterocrinus exilis Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 23 pi. 5, fig. 16 (adv. sheets 1866 and 1871). Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 5, pi. 1, fig. 12. Stenocrinus exilis Wachmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 132 (Rev. Pal., pt, 3, sec. 2, p. 208). Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 611 Heterocrlnus exllis exiguus (Meek). Heterocrinus exiguus Meek, Proc. Acad. Nat. Sci. Philadelphia, 23, 1, 1871, p. 308; ibid., 1872, p. 308. Heterocrinus exilis var. exiguus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 293 (Rev. Pal., pt. 1, p. 70). Eden: Cincinnati, Ohio, and vicinity. Heterocrinus? geniculatus Ulrich. Heterocrinus geniculatus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 16, pi. 7, figs. 13, 13a, 13b, 13c. Stenocrinus geniculatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1886, p. 132 (Rev. Pal., 3, sec. 2, p. 208). Eden (Fulton): Cincinnati, Ohio, and vicinity. Natural mold of cotype Cat. No. 42219, U.S.N.M. Heterocrinus? gracilis Hall. Heterocrinus? gracilis Hall, Pal. New York, 1, 1847, p. 280, pi. 76, figs. 3a, b; 12th Ann. Rep. Regents Univ. State New York, 1860, p. 69. Ruedemann, Bull. New York State Mus., 162, 1912, p. 86, pi. 3 r fig. 5. Trenton (Snake Hill): Snake Hill, New York. Heterocrinus heterodactylus Hall. Heterocrinus heterodactylus Hall, Pal. New York, 1, 1847, p. 279, pi. 76, figs. la-o . Emmons, Amer. Geology, 1, pt. 2, 1855, pi. 17, fig. 20. Hall, 12th Ann. Rep. Regents Univ. State New York, 1860, p. 69. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 12, pi. 1, figs, la, b. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 2, 3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 724, pi. 3, figs. 5, 5a. Stenocrinus heterodactylus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 130, 132 (Rev. Pal., pt. 3, sec. 2, pp. 206, 208). Eden: Lewis, Jefferson, and Oneida Counties, New York; Cincinnati, Ohio, and vicinity. Heterocrinus heterodactylus propinquus Meek. Heterocrinus heterodactylus propinquus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 14, pi. 1, figs. 2a, b. Stenocrinus heterodactylus var. propinquus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 132 (Rev. Pal., 3, pt. 2, p. 208), (gen. ref.). Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity. HETEROCRINUS IN.EQUALIS Billings. See Cremacrinus insequalis. HETEROCRINUS (ANOMALOCRINUS) INCURVUS Meek and Worthen. See Anomalocrinus incurvus. HETEROCRINUS ISODACTYLUS Miller. See Ohiocrinus compactus. Heterocrinus juvenls Hall. Heterocrinus juvenis Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 212, pi. 5, figs. 9, 10 (adv. sheets 1866, p. 4, and 1871, pi 1, figs. 9, 10). Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 10, pi. 1, figs. 3a-c. Miller, N. A. Geol. Pal., 1889, p. 252, fig. 329. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 283, fig. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 725, pi. 3, figs. 3, 3b. Stenocrinus juvenis Wachsmuth and Springer, Proc. Acad. Nat. Sci., Philadelphia 1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). Maysville (Corryville): Lebanon, Ohio. 612 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HETEROCRINUS LAXUS Hall. See Ohiocrinus laxue. Heterocrinus miller! Wetherby. Heterocrinus Milleri Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153, pi. 5, fig. 3. Stenocrinus Milleri Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). Trenton (Curdsville): Mercer County, Kentucky; Kirkfield, Ontario. HETEROCRINUS OEHANUS Miller. See Ohiocrinus laxus. Heterocrinus pentagonus Ulrich. Heterocrinus pentagonus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 176, pi. 5, figs. 10 and lOa. Stenocrinus pentagonus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). Maysville (Corryville): Cincinnati, Ohio, and vicinity. HETEROCRINUS? (IOCRINUS) POLYXO Hall. See locrinus subcrassus. HETEROCRINUS SIMPLEX Hall. See Ectenocrinus simplex. HETEROCRINUS SIMPLEX var. GRANDIS Meek. See Ectenocrinus grandis. HETEROCRINUS SUBCRASSUS Meek and Worthen. See locrinus subcrassus. Heterocrinus tenuis Billings. Heterocrinus tenuis Billings, Geol. Surv. Canada, Rep. Progress, 1853-56, 1857, p. 273; Geol. Surv. Canada, dec. 4, 1859, p. 50, pi. 4, fig. 6a-b; pi. 10, figs. la-e. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 502. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 25. Stenocrinus tenuis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). Trenton (Curdsville): Ottawa and Kirkfield, Ontario; Montreal, Quebec. HETEROCRINUS VAUPELI Wetherby. See Ohiocrinus constrictus. HETEROCYSTITES Hall. Genotype: H. armatus Heterocystites Hall, Pal. New York, 2, 1852, p. 229. Pictet, Traite de Pal., ed., 4, 1857, p. 303. Hall, Pal. New York, 3, for 1859, 1861, p. 152. Mill N. A. Geol. Pal., 1889, p. 253. Bather, Treatise on Zool. (Lankester), pt. 1900, p. 67, fig. 36, 7. Heterocystites armatus Hall. Heterocystites armatus Hall, Pal. New York, 2, 1852, p. 229, pi. 49A, figs. 3a-c.- Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 345. Niagaran (Lockport): Lockport, New York. HETERODICTYA Zittel. See Ptilodictya Lonsdale. HETERODICTYA PAVONIA Ulrich. See Escharopora pavonia. HETERONEMA Ulrich and Bassler. Genotype: H. capillare Ulrich and Basslc Heteronema Ulrich and Bassler, Smith. Misc. Coll., 45, 1904, p. 278. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 57; Zittel-Eastman Textb. Pal., 1913, p. 318. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 613 Heteronema? contextum Ulrich and Bassler. Heteronema? contextum Ulrich and Bassler, Smiths. Misc. Coll., Quart., 45, 1904, p. 279, pi. 65, fig. 12. Maysville (Corryville): Morrow, Ohio. Holotype.Czt. No. 43132, U.S.N.M. HETERORTHIS Hall and Clarke. Genotype: Orthis clytie Hall. Heterorthis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207, 223; llth Ann. Rep. New York State Geol., 1891, p. 268. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 382. Heterorthis clytie Hall. Orthis clytie Hall, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 90; 15th Rep., ibid., 18-62, pi. 2, figs. 4, 5. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 34. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 75, pi. 1, figs. 18, 19. Hall, 36th Rep. New York State Mus. Nat. Hist., 1884, p. 75, pi. 3, fig. 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 512, figs. Heterorthis clytie Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 202, 223, pi. 5B, figs. 20-24. Bassler, Bull. Virginia Geol. Surv., 2a, pi. 24, fig. 1. Trenton (Hermitage): Frankfort, Paris, etc., Kentucky; Virginia; Tennessee. HETEROSPONGIA Ulrich. Genotype: H. subramosa Ulrich. Heterospongia Ulrich, Amer. Geol., 3, 1889, pp. 234, 239. Miller, N. A. Geol. Pal., 1889, p. 160. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 71. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 78 (Ext., 1893). Heterospongia aspera Ulrich. Heterospongia aspera Ulrich, Amer. Geol., 3, 1889, p. 241. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 72. Richmond (Arnheim): Marion and Lincoln Counties, Kentucky. Heterospongia knotti Ulrich. Heterospongia knotti Ulrich, Amer. Geol., 3, 1889, p. 241, fig. 5. Heterospongia cfr. knotti Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 303, pi. 9, fig. 2. Heterospongia subramosa-knotti Foerste, Ohio Nat., 12, 1912, p. 453, pi. 22, fig. 2. Richmond (Arnheim): Near Lebanon, Kentucky. Holotype.C&t. No. 46557, U.S.N.M. Heterospongia subramosa Ulrich. Heterospongia subramosa Ulrich, Amer. Geol., 3, 1889, p. 240, fig. 6, p. 236. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 71. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895 (ext. 1893), p. 79, pi. G, figs. 4-6. Richmond (Arnheim) : Marion and Lincoln Counties, Kentucky. Cotypes.Ca,t. Nos. 46558-46560, U.S.N.M. HETEROSPONGIA SUBRAMOSA KNOTTI Foerste. See Heterospongia knotti. HETEROTRYPA Nicholson. Genotype: Mpnticulipora frondosa D 'Orbigny. Heterotrypa (in part) Nicholson, Pal. Tabulate Corals, 1879, p. 291; Genus Mon- ticulipora, 1881, pp. 101, 103. Zittel, Handb. Pal., 1, p. 615. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155; ibid., 6, 1883, p. 83. Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 20. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 83-85. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 471. Rominger, Amer. Geol., 6, 1890, pp. 114, 119. Ulrich, Geol. Sur. Illinois, 8, 1890, pp. 371, 413; Geol. Minnesota, 3, 1893, p. 267. Zittel's 614 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. HETEROTRYP A Continued. Textb. Pal. (Engl. ed.), 1896, p. 104. Ulrich, Zittel's Textb. Pal. (Engl. ed.), 1896, p. 273. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 578. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31. Cumings, Amer. Geol., 29, 1902, p. 199. Ulrich and Bassler, Smith. Misc. Coll., Quart., 47, 1904, pp. 24, 25. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333. Heterotrypa affinis (Ulrich). Amplexopora affinis Ulrich, Geol. Sur. Illinois, 8, 1890, p. 450, pi. 36, figs. 2, 2a. Monticulipora affinis James, Jour. Cincinnati Soc. Nat. Hist., 16, pt. 5, 1894, p. 193. Heterotrypa affinis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 289. Richmond (Fernvale): Wilmington, Illinois. Sections of holotype.C&t. No. 43769, U.S.N.M. HETEROTRYPA ANDREWSI Nicholson. See Hallopora andrewsi. Heterotrypa foerstei Nickles. Heterotrypa foerstei Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 48, pi. 2, fig. 5. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 126. Trenton (Upper): Near Rogers Gap, Scott County, Kentucky. Heterotrypa frondosa (D'Orbigny). Monticulipora frondosa D'Orbigny, Prodr. de Pal., 1, 1850, p. 25. Milne-Edwards and Haime, British Foss. Corals, 1854, p. 265. Milne-Edwards, Hist. Nat. des. Corall., 3, 1860, p. 276. White, llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 380, pi. 48, figs. 2, 3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 420, figs. Boule and Thevenin, Ann. de Pal., 1, 1906, p. 6, pi. 2, figs. 9, 10; pi. 3, figs. 1, 2. Chsetetes frondosus Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 267, pi. 19, figs. 5, 5a. Quenstedt, Rcehren- und Sternkorallen, 1881, p. 73, pi. 146, fig. 8 (not 3-5). Chsetetes frondosus limatus Quenstedt, Roehren-.und Sternkorallen, 74, 1881, pi. 146, fig. 9. Heterotrypa frondosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 23; ibid., 6, 1883, p. 83. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 289. Ulrich and Eissler, Smiths. Misc. Coll., Quart., 47, 1904, p. 25, pi. 11, figs. 1-3. Chsetetes mammulatus (not D'Orbigny) Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 508, pi. 30, figs. 2, 2b; Pal. Ohio, 2, 1875, p. 207. Monticulipora (Heterotrypa) mammulata (not D'Orbigny), Nicholson, Pal. Tabulate Corals, 1879, p. 294, pi. 13, figs. 1, Ib; Genus Monticulipora, 1881, p. 104, pi. 6, figs. 1, Ig. Monticulipora mammulata (not D'Orbigny) James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p 16. James, ibid., 18, 1895, p. 69. Dekayia frondosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 812, pi. 15, figs. 1-le; pi. 28, fig. 9; pi. 29, fig. 1. Dekayella cystata Cumings, Amer. Geol., 28, 1901, p. 375, pi. 35, figs. l-6a. Dekayia frondosa var. cystata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 813, pi. 14, figs. 1, la; pi. 28, fig. 3. Dekayia perfrondosa Cumings, Amer. Geol., 29, 1902, p. 207, 210, 212, pi. 9, figs. 9, 11-13, 15, 16; pi. 10, figs. 1, 6; pi. 11, fig. 6; pi. 12, fig. 2. Maysville (McMillan): Cincinnati, Ohio, and vicinity. Fragment of Edwards and Haime's plesiotype. Cat. No 35113, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 615 Heterotrypa inflecta Ulrich. Heterotrypa inflecta Ulrich, Geol. Surv. Illinois, 8, 1890, p. 414, pi. 37, figs. 2-2d. Monticulipora inflecta J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 77. Heterotrypa ulrichi-inflecta Cumings. Amer. Geol., 29, 1902, p. 212, pi. 9, fig. 3. Dekayia inflecta Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 814, pi. 15, figs. 2, 2a. Maysville (Corryville): Cincinnati, Ohio, and vicinity. CotypesCsit. No. 43367, U.S.N.M. Heterotrypa lobata (Cumings). Dekayia ulrichi-lobata Cumings, Amer. Geol., 29, 1902, p. 203, pi. 9, fig. 2; pi. 10, fig. 5; pi. 11, figs. 3, 4; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 815, pi. 27, fig. 21. Dekayia ulrichi-expansa Cumings, Amer. Geol., 29, 1902, p. 212, pi. 9, figs. 5, 6; pi. 11, fig. 7. Maysville (Fairmount): Manchester Station, etc., Indiana; Cincinnati, Ohio, and vicinity. Heterotrypa microstigma Cumings and Galloway. Heterotrypa microstigma Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 76, pi. 8, figs. 1-lc. Richmond (Waynesville): Big Four Railroad, near Weisburg, Indiana. Heterotrypa parvulipora Ulrich and Bassler. Heterotrypa parvulipora Hayes and Ulrich, U. S. Geol. Surv., Folio 95, ill. sheet, 1903, fig. 26. Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 26, pi. 11, figs. 4-6. Nickles,- Bull. Kentucky Geol. Surv. 5, 1905, p. 45, pi. 1, fig. 12. Trenton (Catheys): Maury County, etc., Tennessee; Kentucky. Cotypes.C&t. No. 43186, U.S.N.M. Heterotrypa paupera (Ulrich). Dekayia paupera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 153, pi. 6, figs. 10, 10a. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 817, pi. 15, fig. 3, 3a; pi. 28, fig. 6. Heterotrypa paupera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 290. Maysville (Corryville): Cincinnati, Ohio, and vicinity. Holotype.C&t. No. 43656, U.S.N.M. HETEROTRYPA PROLIFICA Ulrich. See Heterotrypa subramosa-prolifica. HETEROTRYPA RAMOSA Nicholson. See Hallopora ramosa. HETEROTRYPA SINGULARIS Ulrich, See Dekayella singularis. Heterotrypa solitaria Ulrich. Heterotrypa solitaria Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 88, pi. 1, figs. 3-3b. Maysville (Fairmount): Covington, Kentucky; Maury County, Tennessee. Holotype.C&t. No. 43664, U.S.N.M. Heterotrypa subfrondosa (Cumings). Dekayia subfrondosa Cumings, Amer. Geol., 29, 1902, p. 204, pi. 9, figs. 7, 8 (as D. subramosa); pi. 10, figs. 3, 7, 8; pi. 11, fig. 1; pi. 12, fig. 4; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 821, pi. 14, figs. 6, 6c; pi. 28, fig. 10. Maysville (Fairmount) : Manchester Station, Indiana; Cincinnati, Ohio, and vicinity. 616 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Heterotrypa subpulchella (Nicholson). Chsetetes subpulchellus Nicholson, Pal. Ohio, 2, 1875, p. 196, pi. 21, figs. 6, 6a. Monticulipora (Heterotrypa) subpulchella Nicholson, Genus Monticulipora, 1881, p. 134, fig. 23, pi. 5, figs. 2, 2a. Monticulipora subpulchella James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 181. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 204. Heterotrypa subpulchella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 83. Nickles, Bull. Kentucky Geol. Surv., no. 5, 1905, p. 51, pi. 2, fig. 12. Dekayia perfrondosa-subpulchella Cumings, Amer. Geol., 29, 1902, p. 211, 212, pi. 9, fig. 14; pi. 10, fig. 4. Dekayia subpulchella Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 822, pi. 16, figs. 1, la; pi. 28, fig. 11. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Heterotrypa subramosa (Ulrich). Atactopora subramosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 124, pi. 12, figs. -6c. Heterotrypa subramosa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 290. Dekayia subramosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 823, pi. 15, figs. 5, 5b; pi. 29, fig. 2. Richmond ( Waynesville) : Jacksonburg, Hanover, etc., Ohio; Indiana. Holotype.Cat. No. 43663, U.S.N.M. Heterotrypa subramosa proliflca Ulrich. Heterotrypa prolifica Ulrich, Geol. Surv. Illinois, 8, 1890, p. 413, pi. 37, figs. 1-ld; Geol. Minnesota, 3, 1893, p. 268. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 145, 146 (p. 579). Monticulipora prolifica J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 75. Heterotrypa subramosa-prolifica Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 290. Dekayella perfrondosa-prolifica Cumings, Amer. Geol., 29, 1902, p. 212 (gen. ref.). Dekayia prolifica Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 820, pi. 15, figs. 4-4b; pi. 29, fig. 3. Richmond: Blanchester, Waynesville, etc., Ohio; Richmond, etc., Indiana; Illinois; Wisconsin; etc. Cotypes.Cat. No. 43368, U.S.N.M. HETEROTRYPA ULRICHI-INFLECTA Cumings. See Heterotrypa inflecta. HETEROTRYPA VAUPELI Ulrich. See Nicholsonella vaupeli. HEXAMERES Barrande. See Hexameroceras Hyatt. HEX AMEROC ERAS Hyatt. Genotype: Phragmoceras panderi Barrande. Hexamorion (Hexameres) Barrande, Syst. Sil. Boheme 2, pt. 1, 1867, pp. 203, 265. Hexameroceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 278. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 242. Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 478. Jaekel, Zeits. d. d. geol. Gesell., 54, Protok., 1902, pp. 8, 68, 80. Jaekel in Ruedemann, Amer. Geol., 31, 1903, p. 200. Hexamoceras Miller, N. A. Geol. Pal., 1st App., 1892, p. 696. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 617 Hexameroceras cacabiforme Newell. Hexameroceras cacabiformis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 481, figs. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 131, fig. Hexamoceras cacabiforme Miller, N. A. Geol. Pal., 1st App., 1892, p. 696 (gen. ref.). Niagaran: Delphi, Indiana. Hexameroceras delphicolum Newell. Hexameroceras delphicolum Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 479, figs. Kindle and Breger, 28th Ann. Rep. Dept. Geol. Nat. Res. Indiana, 11904, p. 475. Hexamoceras delphicolum Miller, N. A. Geol. Pal., 1st App., 1892, p. 696 . Niagaran: Delphi and Huntington, Indiana. Hexameroceras hertzeri (Hall and Whitfield). Crytoceras Hertzeri Hall and Whitfield, Geol. Stirv. Ohio Pal., 2, 1875, p. 150, pi. 8, figs. 7, 8. Hexameroceras herzeri Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 130, fig. 1378. Gomphoceras hertzeri Miller, N. A. Geol. Pal., 1889, p. 437 (gen. ref.). Hexamoceras hertzeri Miller, N. A. Geol. Pal., 1892, p. 696 (gen. ref.). Niagaran (Guelph) : Cedarville, Ohio. [EXAMOCERAS Miller. See Hexameroceras Hyatt. HEXAMORION Barrande. See Hexameroceras Hyatt. HEXAPORITES Pander. See Dianulites Eichwald. HEXAPORITES FUNGIFORMIS Leuchtenberg. See Dianulites petropolitana. HINDELLA Davidson. Genotype: Athyris umbonata Billings. Hindella Davidson, Suppl. British Sil. Brach., Pal. Soc., 1882, p. 130. Miller, N. A. Geol. Pal., 1889, p. 346. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 63, figs. 46-51; 13th Ann. Rep. New York State Geol., 1895, p. 769. Grabau, Michigan Geol. Sur., Geol. Ser., 1, 1909, p. 148. Schuchert, Zittel- Eastman Textb. Pal., 1913, p. 415. Greenfieldia Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 148. (Geno- type: Hindella whitfieldi Grabau.) Hindella? amblgua Savage. Hindella? ambigua Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 89, pi. 4, figs. 17 and 18. Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri; Alex- ander County, Illinois. HIXDELLA PHOCA Ami. See Lissatrypa phoca. Hindella prinstana (Billings). Athyris Prinstana Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 145, fig. 122 (advance sheets, 1862). Meristella prinstana Miller, N. A. Geol. Pal., 1889, p. 354. Hindella prinstana Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 64, pi. 41, fig. 28; pi. 49, fig. 1. Athyris turgida Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 69. Gamachian (Ellis Bay) and Anticostian (Becsie River): Prinsta Bay, Ellis Bay, etc., Anticosti. 618 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hindella? (Greenfieldia) rostralis Grabau. Hindella? (Greenfieldia) rostralis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 150, pi. 21, figs. 1, 2, 7. Lower Monroan (Greenfield): Greenfield, Ohio. Hindella umbonata (Billings). Athyris umbonata Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 144, fig. 121 (adv. sheets, 1862); Geol. Canada, 1863, p. 317, fig. 331. Hindella umbonata Davidson, Suppl. British Sil. Brach., Pal. Soc., 1882, p. 130, fig. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 64, figs. 46-51; pi. 41, figs. 26, 27, 29, 30. Meristella umbonata Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 88, pi. 13, fig. 2; Geol. Ohio, 7, 1895, p. 590, pi. 25, fig. 2. Alexandrian (Ellis Bay) and Anticostian (Becsie River-Gun River): Island of Anticosti. Upper Medinan (Brassfield): Dayton, Ohio. Hindella? (Greenfieldia) whitfieldi Grabau. Hindella? (Greenfieldia) whitfieldi Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 149, pi. 19, fig. 4; pi, 21, figs. 11, 17-19; pi. 30, figs. 8-10. Meristella bella Whitfield (not Hall), Ann. New York Acad. Sci., 5, 1891, p. 510, pi. 5, figs. 8-10; Pal. Ohio, 7, 1893, p. 412, pi. 1, figs. 8-10. Sherzer, Geol. Surv. Michigan, 7, pt. 1, 1900, p. 223, pi. 17, figs. 8-10. Lower Monroan (Greenfield): Greenfield, Ohio. HINDIA Duncan. Genotype: H. sphaeroidalis Duncan. Hindia Duncan, Ann. Mag. Nat. Hist. (5), 4, 1879, p. 84. Hinde, Catalogue Fossil Sponges, British Mus., 1883, p. 57. Zittel, Neues Jahrb. Min., Geol. Pal., 2, 1884, p. 79. Rauff, Ann. Mag. Nat. Hist., 5th ser., 18, 1886, p. 169. Hinde, Ann. Mag. Nat. Hist., 5th ser., 19, 1887, p. 67. Mon. British Foss. Sponges, PalseontographicalSoc., 1888, p. 115. Miller, N. A. Geol. Pal., 1889, p. 160. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 226. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 56. Rauff, Palseontographica, 40, 1894, p. 327. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 79. Koken, Die Leitfossilien, Leipzig, 1896, p. 337; Zittel-Eastman Textb. Pal., 1, 1900, 51. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 14. Zittel-Es man Textb. Pal., 2d ed., 1913, p. 56. Microspongia, Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 37.- Ulrich, Amer. Geol., 1, 1888, p. 325.--Miller, N. A. Geol. Pal., 1889, p. 161.- Ulrich, Geol. Surv. Illinois, 8, 1890, p. 228. James, J. F., Jour. Cincinm Soc. Nat. Hist., 14, pt. 1, 1891, p. 54. (Genotype: M. gregaria Miller ^ Observation. Although Microspongia has priority it was so poorly defined its identity with Hindia would not be suspected without study of the types. HINDIA FIBROSA of authors. See Hindia sphaeroidalis. Hindia gregaria (Miller and Dyer). Microspongia gregaria Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 187S p. 37, pi. 2, fig. 2. Miller, N. A. Geol. Pal., 1889, p. 161, fig. 108.- J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 54. Astylospongia gregaria James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, 247. Maysville: Cincinnati, Ohio, and vicinity. BIBLIOGRAPHIC LIST OF GENERA AXD SPECIES. 619 Hindia fnaequalis Ulrich and Everett. Ilindia inaequalis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 275, pi. 2, figs. 4, 4a-b. Black River (Platteville): Near Dixon, Illinois. Section of holotype.C&t. No. 46561, U.S.N.M. Hindia parva Ulrich. Hindia parva Ulrich, Amer. Geol., 3, 1889, p. 244. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 79, pi. G, figs. 7-9. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 135, pi. 6, fig. 1. Hindia sphseroidalis var. parva Rauff, Palseontographica, 40, 1894, p. 338, pi. 15, fig. 2. Microspongia parva Miller, N. A. Geol. Pal., 1889, p. 161 (gen. ref.). Microspongia gregaria (part) James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 54. Trenton: Danville, Frankfort, etc., Kentucky; Tennessee; New Jersey; Wiscon- sin; Minnesota; etc. Black River (Decorah): Minneapolis, etc., Minnesota. Cotypes.Cat. No. 46562, U.S.N.M. Hindfa sphaeroidalis Duncan. Calamopora fibrosa Roemer (not Goldfuss), Sil. Fauna West Tennessee, 1860, p. 20, pi. 2, fig. 9. Hindia fibrosa Hinde, Cat. FOBS. Sponges British Mus., 1883, p. 57, pi. 13, figs. 1, la-b. Roemer, Lith. Errat. in Pal. Abhandl. Dames u. Kayser, 2, 1885, p. 63 (310), pi. 4 (27), fig. 17. Rauff, Sitzungsber. d. Niederrh. Gesell. fur Nat. und Heilk zu Bonn, Sitz., 1886, pp. 166-172. Hinde, Ann. Mag. Nat. Hist., 5th ser., 19, 1887, p. 76, figs. 1, 2; Mon. British Foss. Sponges, Pal. Soc., 1888, p. 116. Girty, 48th Rep. New York State Mus., 2, 1895 (1897), p. 263; 14th Rep. State Geol. New York for 1894, 1897, p. 263, pi. 2, fig. 2. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 297, pi. 33, figs. 1. 2. Grabau and Shinier, N. A. Index Fossils, 1, 1906, p. 14. Hindia splusroidalis Duncan, Ann. Mag. Nat. Hist., 5th ser., 4, 1879, p. 91, pi. 9, figs. 1-6. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 224, figs. 9, 10, pp. 225, 227 Rauff, Palseontographica, 40, 1894, p. 335, pi. 15; pi. 16; pi. 17; figs. 1-4. Girty, 48th Rep. New York State Mus., 2, 1895 (1897), pi. 2, fig. 2; 14th Rep. State. Geol. New York for 1894, 1897, pi. 2, fig. 2; 19th Ann. Rep. U. S. Geol. Surv., 1899, p. 552. Foerste, Jour. Geol., 11, 1903, p. 714. Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 195, pi. 17, figs. 1-4. Hyalostelia solivaga Ulrich, Geol. Surv. Illinois, 8, 1890, p. 232, pi. 2, fig. 4c. Astylospongia inornata Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 70. Sphserolithes nicholsoni Hinde, Abstract Proc. Geol. Soc., No. 305, 1875, p. 88, in Quart. Jour. Geol. Soc., 31. Silurian and Early Devonian: Many localities in the United States and Canada. Plesiotype.Cat. No. 46563, U.S.N.M. (holotype of Hyalostelia solivaga). HIXDIA SPH^EROIDALIS var. PARVA Rauff. See Hindia parva. Hindia subrotunda (James). Chsetetcs subrotundus James, Paleontologist, No. 2, 1878, p. 11. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 31. Astylospongia subrotundus James, Paleontologist, 5, 1881, p. 34. Microspongia? subrotundus J. F. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 55, fig. 1. Richmond: Clinton County, Ohio. 620 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HIPPARIONYX CONSIMILARIS Vanuxem. See Atrypa reticularis. HEPPOTHOA DEUCATULA James. See Corynotrypa delicatula. HIPPOTHOA INFLATA Nicholson. See Corynotrypa inflata. HOLASAPHUS Matthew. Genotype: H. centropyge Matthew. Holasaphus Matthew, Trans. Roy. Soc. Canada, 2d ser., 1, sec. 4, 1895, p. 268; Geol. Surv. Canada, Rep. Cambrian Rocks, Cape Breton, 1903, p. 174. Holasaphus congeneris (Walcott). Bathyurus? congeneris Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 92, pi. 12, fig. 8. Upper Pogonip: Ridge southwest of Wood Cove, Eureka District, Nevada. Cotype.Czt. No. 24654, U.S.N.M. Holasaphus moorei Raymond. Holasaphus moorei Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 35, pi. 3, figs. 7-11. Canadian (Beekmantown) : St. Anne de Bellevue, Island of Montreal, Quebec. HOLOCYSTIS Haeckel. See Holocystites Hall. HOLOCYSTITES Hall. Genotype: Caryocystites cylindricus Hall. Holocystites Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1864), p. 311, 380; rev. ed., pp. 353, 429. Miller, Jour. Cincinnati Soc. Nat. Hist,, 1, Oct., 1878, p. 129. Zittel, Handb. Pal., 1, 1879, p. 416. Miller, N. A. Geol. Pal., 1889, p. 253. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 72; Zittel-Eastman Textb. Pal., 1, 1900, p. 183. Zittel, Grundzuge Pal., 1, 1910, p. 91. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 460. Holocystis (not Lonsdale, 1855) Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 60. Megacystites Hall, Addenda 20th Rep. New York State Cab. Nat. Hist., 1867, p. 380. (New name, in c^se Holocystites be thought to be too much like Holocystis.) Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 47. Megacystis Angelin, Icon. Crinoid., 1878, p. 29. Holocystites abnormis Hall. Holocystites abnormis Hall, 20th Rep. New York State Cab. Nat. Hist, (ext 1864), 1868, p. 312, pi. 12(3), figs. 7, 8; rev. ed., p. 355, pi. 12, figs. 7, 8. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Niagaran (Racine): Racine, Wisconsin. Holocystites adipatus Miller. Holocystites adipatus Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, It p. 623, pi. 2, figs. 1, 2. (Adv. sheets, 1891, p. 13.) Clinton (Osgood) : Jefferson County, Indiana. Holocystites afflnis Miller and Faber. Holocystites affinis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 87, pi. 1, figs. 16-18. Clinton (Osgood) : Near Madison, Indiana. Holocystites alternatus (Hall). Caryocystites alternatum Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 23; Geol. Wisconsin, 1, 1862, p. 69. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 621 Holocystites alternatus Continued. Holocystites alternatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1864), p. 312, pi. 12(3), fig. 9; pi. 12a(l), fig. 6; rev. ed., 1870, p. 355, pi. 12, fig. 9, pi. 12a, fig. 6. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 461, fig. 1767. Holocystis alternata Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, pi. 2, fig. 28. Niagaraii (Racine): Racine, Wisconsin. Holocystites amplus Miller. Holocystites amplus Miller, 18th Rep. Dep. Geol. Nat. Res., Indiana, 1894, p. 262, pi. 2, fig. 1. (Adv. sheets, 1892, p. 8, pi. 2, fig. 1.) Clinton (Osgood) : Near Madison, Indiana. Holocystites asper Miller and Gurley. Holocystites asper Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 1895, p. 84, pi. 5, figs. 1, 2. Clinton (Osgood) : Near Madison, Indiana. Holocystites baculus Miller. Holocystites baculus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 105, pi. 10, figs. 5, 5a. Clinton (Osgood) : Ripley County, Indiana. Holocystites benedicti Miller. Holocystites benedicti Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 627, pi. 5, fig. 3. (Adv. sheets, 1891.) Clinton (Osgood): Jefferson County, Indiana. Holocystites brauni Miller. Holocystites brauni Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 130. Clinton (Osgood): Jefferson County, Indiana. Holocystites canneus Miller. Holocystites canneus Miller, N. A. Geol. Pal., 1889, p. 253, figs. 332, 333. Clinton (Osgood): Jefferson County, Indiana. Holocystites colletti Miller. Holocystites colletti Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 626, pi. 4, fig. 3. (Adv. sheets, 1891, p. 16.) Clinton (Osgood): Jefferson County, Indiana. Holocystites commodus Miller. Holocystites commodus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 624, pi. 3, figs. 1, 2, 5, 6. (Adv. sheets, 1891, p. 14.) Clinton (Osgood): Jefferson County, Indiana. Holocystites cylindricus (Hall). Caryocystites cylindricum Hall, Geol. Surv. Wisconsin, Rep. Progr., 1861, p. 23; Geol. Wisconsin, 1, 1862, p. 69. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 91. Holocystites cylindricus Hall, Adv. Pub., 18th Rep. New York State Cab. Nat. Hist., 1864, p. 7, pi. 1, fig. 7, 8; pi. 3, figs. 4-6; 20th Rep. New York State Cab. Nat. Hist., Doc. Ed., 1868, p. 311, pi. 12, figs. 4-6; pi. 12a, figs. 7-8; rev. ed., 1870, p. 354. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 461, fig. 1766. Holocystis cylindrica Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 60. Niagaran (Racine): Racine, Wisconsin. 622 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Holocystites dyeri Miller. Holocystites dyeri Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 108. pi. 10, fig. 3. Clinton (Osgood): Ripley County, Indiana. Holocystites elegans Miller. Holocystites elegans Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 136, pi. 6, figs. 2, 3a. Clinton (Osgood) : Jefferson County, Indiana. Holocystites faberi Miller. Holocystites faberi Miller, N. A. Geol. Pal., 1889, p. 254, figs. 334, 335. Clinton (Osgood): Jefferson County, Indiana. Holocystites globosus Miller. Holocystites globosus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 1 pi. 5, figs. 5, 5a, 5b. Clinton (Osgood) : Jefferson County, Indiana. - Holocystites gorbyi Miller. Holocystites gorbyi Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 624, pi. 2, figs. 3, 4. (Adv. sheets, 1891, p. 14.) Clinton (Osgood) : Jefferson County, Indiana. Holocystites gyrinus Miller and Gurley. Holocystites gyrinus Miller and Gurley, Bull. Illinois State Mus. Nat Hist., 5, 1894, p. 5, pi. 1, figs. 1-3. Miller, N. A. Geol. Pal., 2d App., 1897, p. 747, fig. 1361. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 72, fig. 42." Clinton (Osgood): Jefferson County, Indiana. HOLOCYSTITES HAMMELLI Miller. See Trematocystis hammelli. &i Holocystites indianensis Miller. Holocystites indianensis Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 625, pi. 3, fig. 7. (Adv. sheets, 1891, p. 15.) Clinton (Osgood) : Jefferson County, Indiana. Holocystites jolietensis Miller. Holocystites jolietensis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 223, pi. 9, figs. 1, la. Niagaran (Racine): Joliet, Illinois. Holocystites madisonensis Miller. Holocystites madisonensis Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 625, pi. 3, figs. 3, 4. (Adv. sheets, 1891, p. 15.) Clinton (Osgood) : Jefferson County, Indiana. Holocystites ornatissimus Miller. Holocystites ornatissimus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 627, pi. 5, figs. 1, 2. (Adv. sheets, 1891, p. 15.) Clinton (Osgood;: Jefferson County, Indiana. Holocystites ornatus Miller. Holocystites ornatus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 132, pi. 5, figs. 3, 3a, 3b. Clinton (Osgood): Jefferson County, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 623 Holocystites ovatus Hall. Holocystitesovatus Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 1864), 1868, p. 313, pi. 12 (3), fig. 3; rev. ed., 1870, p. 357, pi. 12, fig. 2. Chamberlin, Geol. Wisconsin, 1883, 1, p. 191, fig. Niagaran (Racine): Waukesha, Wisconsin. Holocystites papulosus Miller. Holocystites papulosus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 628, pi. 5, figs. 7, 8 (adv. sheets 1891, p. 18. Rowley in Greene's Cont. Indiana Pal., 16, 1903, p. 166, pi. 48, figs. 16-18. Clinton (Osgood): Jefferson County, Indiana. Holocystites parvulus Miller. Holocystites parvulus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 628, pi. 5, fig. 6 (adv. sheets 1891, p. 18). Clinton (Osgood): Jefferson County, Indiana. Holocystites parvus Miller. Holocystites parvus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 626, pi. 4, figs. 4, 5 (adv. sheets 1891, p. 16). Clinton (Osgood): Jefferson County, Indiana. Holocystites perlongus Miller. Holocystites perlongus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 132, pi. 5, figs. 4, 4a. Clinton (Osgood): Ripley County, Indiana. Holocystites plenus Miller. Holocystites plenus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 135, pi. 6, figs. 2, 2a. Clinton (Osgood): Jefferson County, Indiana. Holocystites pustulosus Miller. Holocystites pustulosus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 134, pi. 6, figs. 1, la. Niagaran (Laurel): Near Waldron, Indiana. Holocystites rotundus Miller. Holocystites rotundus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 107, pi. 9, figs. 3, 3a, 3b. Clinton (Osgood): Ripley County, Indiana. Holocystites scitulus Miller. Holocystites scitulus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 624, pi. 2, figs. 5, 6 (adv. sheets 1891, p. 14); N. A. Geol. Pal., 2d. App., 1897, p. 747, fig. 1359. Clinton (Osgood): Jefferson County, Indiana. Holocystites scutellatus Hall. Holocystites scutellatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras Dec. 1864), p. 314, pi. 12 (3), fig. 1; rev. ed. 1870, p. 357, pi. 12, fig. 1. Niagaran (Racine): Waukesha, Wisconsin. Holocystites spangleri Miller. Holocystites spangleri Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 626, pi. 4, fig. 6 (adv. sheets 1891, p. 16). Clinton (Osgood): Jefferson County, Indiana. 624 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Holocystites sphaericus Winchell and Marcy. Holocystites sphaericus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 111. Niagaran (Racine) : Chicago, Illinois. Holocystites sphaeroldalis Miller and Gurley. Holocystites sphaeroidalis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 1895, p. 85, pi. 5, figs. 3, 4. Clinton (Osgood): Near Madison, Indiana. Holocystites splendens Miller and Gurley. Holocystites splendens Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 7, pi. 1, figs. 7, 9. Miller, N. A. Geol. Pal., 2d App., 1897, p. 747, fig. 1360. Clinton (Osgood): Near Madison, Indiana. HOLOCYSTITES SUBGLOBOSUS Miller. See Trematocystis subglobosus. Holocystites subovatus Miller. Holocystites subovatus Miller, 17th Ann. Hep. Indiana Dep. Geol. Nat. Res., 1892, p. 627, pi. 5, figs. 4, 5 (adv. sheets 1891, p. 17); N. A. Geol. Pal., 1st App., 1892, p. 680, fig. 1237. Clinton (Osgood): Jefferson County, Indiana. Holocystites subrotundus Miller. Holocystites subrotundus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 1( pi. 9, figs. 2, 2a. Clinton (Osgood): Ripley, Indiana. Holocystites tumidus Miller. Holocystites tumidus M'ZIer, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 104, pi. 9, figs. 1, la. Clinton (Osgood): Ripley, Indiana. Holocystites turbinatus Miller. Holocystites turbinatus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 259, pi. 15, figs. 7, 7a; N. A. Geol. Pal., 1889, p. 255, fig. 339. Clinton (Osgood): Ripley County, Indiana. Holocystites ventricosus Miller. Holocystites ventricosus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 108, pi. 10, fig. 4. Clinton (Osgood): Ripley County, Indiana. Holocystites wetherbyi Miller. Holocystites wetherbyi Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 131, pi. 5, figs. 2, 2a, 2b. Clinton (Osgood): Ripley County, Indiana. Holocystites winchelli Hall. Holocystites winchelli Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 1864), p. 313, pi. 12 (3), fig. 3; rev. ed., 1870, p. 356, pi. 12, fig. 3. Niagaran (Racine): Waukesha, Wisconsin. Holocystites wykoffl Miller. Holocystites wykoffi Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Rea., 1892, p. 625, pi. 4, figs. 1, 2 (Adv. sheets, 1891, p. 15). Clinton (Osgood): Jefferson County, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 625 HOLOGRAPTUS Holm. Genotype: H. expansum Holm. Holograptus Holm, Ofver. K. Vet. Akad. Forhandl. 38, No. 9, 1881, p. 45. Her- mann, Geol. Mag., dec. 3, 3, 1886, p. 20. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 265. Elles and Wood, Mon. British Grapt., Pal. Soc., 1902, p. 74. Rouvilligraptus Barrois, Ann. Soc. Geol. du Nord, 21, Lille, 1893, p. 109. Holograptus richardsonl (Hall). Graptolithus Richardsoni Hall, Geol. Surv. Canada, dec. 2, 1865, p. 107, pi. 12, figs. 1-8. Graptolithus (Monoprion) richardsoni Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 226, pi. 3, fig. 30; rev. ed. (1870), p. 261, pi. 3, fig. 30; p. 223. Holograptus? richardsoni Gurley, Jour. Geol., 4, 1896, p. 99 (gen. ref.). Rouvilligraptus Richardsoni Barrois, Ann. Soc. Geol. du Nord., 21, Lille, 1893, p. 109, pis. 3, 4. Clonograptus Richardsoni Ellea and Wood, Mon. British Grapt., Pal. Soc., 1903, p. 51 (gen. ref.). Canadian (Levis, Clonograptus zone): Three miles above River Ste. Anne, Quebec. HOLOMETOPUS Angelin. Genotype: H. limbatus Angelin. Holometopus Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 58. Zittel, Handb. Pal., 2, 1885, p. 602. Miller, N. A. Geol. Pal., 1889, p. 550. Pom- peckj, Beit. Phys.-Oekon. Gesell., Konigsberg, 1890, p. 86. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 182. Holometopus angellni Billings. Holometopus Angelini Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 95, fig. 85a, b; p. 281. Miller, N. A. Geol. Pal., 1889, p. 550, fig. 1013. Canadian: Point Levis, Quebec (Levis, Diplograptua dentatus zone); Table Head, Piste let Bay, four miles north Portland Creek and Cow Head, New- foundland (Quebec, N. P.). HO LOPE A Hall. Genotype: H. symmetrica Hall Holopea Hall, Pal. New York, 1, 1847, p. 169. Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 346; ibid., 2d ed., 1881, p. 553; Cat. Camb. and Sil. FOBS., 1873, p. 69. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 119. Lind- strom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 187. Zittal, Handb. Pal., 2, 1882, p. 188. Miller, N. A. Geol. Pal., 1889, p. 405. Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 423; Die Leit- foosilien, Leipzig, 1896, p. 400; Bull, de 1'Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 193. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1064. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 676. HOLOPEA Whitfield (part). See Plethospira Ulrich. Holopea ampla Ulrich and Scofield. Holopea ampla Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1065, pi. 79, figs. 22-25. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 676, fig. 941. Black River (Platteville): Cannon Falls, Minnesota; Mineral Point and Beloit, Wisconsin. Cotype Cat. No. 45837, U.S.N.M. 84243 Bull. 9215 40 626 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. Holopea antiqua (Vanuxem). Littorina antiqua Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 112, fig. 4. Hall, ibid., 4, 1843, p. 142, fig. 4; tab. ill. 26, fig. 4. Mather, ibid., 1, 1843, p. 349, fig. 4. Owen, Amer. Jour. Sci. Arts, 2d ser., 1, 1846, p. 47, fig. 4. Emmons, Man. Geol., 1860, p. 133, fig. 102. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 4. Holopea antiqua Hall, Pal. New York, 3, 1859, p. 294, pi. 54, figs. 2a-b, 3a-b . Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 283, fig. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 264, pi. 24, figs. 15, 16. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 677, fig. 944. Manlius or Keyser: Schoharie, Litchfield, etc., New York; New Jersey. Holopea antiqua pervetusta Hall. Holopea antiqua var. pervetusta Hall, Pal. New York, 3, 1859, p. 295, pi. 54, figs. 4, 5. Grabau, Michigan, Geol. Surv., Geol. Ser., 1, 1909, p. 178, pi. 28 ; figs. 4-5. Holopea pervetusta Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 677, fig. 945. Helderbergian (Manlius or Keyser): New York. Upper Monroan ( Amherstburg) : Detroit River region, Michigan. Holopea appressa Ulrich and Scofield. Holopea appressa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1065, pi. 79, figs. 7-10. Trenton: Goodhue County, Minnesota (Prosser); Burgin, Kentucky. Cotypes Cat. No. 45838, U.S.N.M. Holopea arctic . Schuchert. Holopea arctica Schuchert, Proc. U. S. Nat. Mus.,22, 1900, p. 168, pi. 12, figs. 14-16. Mohawkian: Head of Frobisher Bay, Baffin Land. Cotypes. Cat. No. 28190, U.S.N.M. HOLOPEA ARENARIA Whitfield. See Plethospira arenaria. HOLOPEA CASSINA Whitfield. See Plethospira cassina. Holopea chicagoensis Winchell and Marcy. Holopea chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 99, pi. 2, fig. 18. Niagaran (Racine): Chicago, Illinois. Holopea concinnula Ulrich and Scofield. Holopea concinnula Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1066, pi. 79, fig. 6. Black River (Platteville) : Beloit, Wisconsin. Plastotype.C&t. No. 46531, U.S.N.M. Holopea conoidea (Hall). Murchisonia? conoidea Hall, Pal. New York, 2, 1852, p. 13, pi. 4, fig. 7. Holopea conoidea Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, pt. 2, 1899, p. 164 (gen ref.). Upper Medinan: Lockport, New York. Holopea dilucula (Hall). Turbo dilucula Hall, Pal. New York, 1, 1847, p. 12, pi. 3, fig. 7. Cleland, Bull. Amer. Pal., 4, 1903, p. 14. Holopea dilucula Miller, N. A. Geol. Pal., 1889, p. 405, fig. 678. Ozarkian (Little Falls): Little Falls, etc., New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 627 Holopea? elongata Hall. Holopea? elongate Hall, Pal. New York, 3, 1859, p. 295, pi. 54, figs. 6, 7. Cayugan (Manlius): Schoharie, Manlius, etc., New York. Holopea excelsa Ulrich and Scofield. Holopea excelsa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1067, pi. 79, figs. 11 and 12. Trenton (Prosser): Wykofi, Sumner, and Hader, Minnesota. Cotypes.C&t. No. 45839, U.S.N.M. Holopea gracla Billings. Holopea Gracia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 159 (adv. sheets, 1862). Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 72, pi. 3, fig. 17; Quart. Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26, fig. 17. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 18, pi. 3, fig. 4; ibid., 3, pt. 2, 1895, p. 95, pi. 14, fig. 3. Niagaran (Guelph) : Gait, Ontario. Holopea grandis Calvin. Holopea grandis Calvin, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, 1890, p. 177, pi. 3, figs. la-b. Niagaran: Monmouth, Iowa. Holopea guelphensis Billings. Holopea Guelphensis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 343, fig. 351; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 159 (adv. sheets, 1862), fig. 143. Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 343, pi. 15 (6), fig. 18 (extras, 1865); rev. ed., 1870, p. 391, pi. 15, fig. 18. Nicholson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26, fig. 18; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 72, pi. 3, fig. 18. Chamberlin, Geol. Wisconsin, 1, 1883, p. 193, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 95. Niagaran (Guelph): Gait, etc., Ontario; Wisconsin. Holopea harmonia Billings. Holopea harmonia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 168, fig. 142 (adv. sheets, 1862). Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 342, rev. ed., 1868 (1870), p. 391. Koken, Neues Jahrb. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 423. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 94. Niagaran (Guelph): Gait, etc., Ontario; Wisconsin. Holopea liar pa (Hudson). Straparollina harpa Hudson, Bull. New York State Mus., 80, 1905, p. 292, pi. 5, figs. 4, 5. Holopea harpa Raymond, Ann. Carnegie Mus., 4, 1908, p. 212, pi. 53, fig. 13; pi. 55, figs. 16, 17. Chazyan (Valcour): Valcour Island, New York. Holopea hubbardi Miller. Holopea hubbardi Miller, N. A. Geol. Pal., 1st App., 1892, p. 694, fig. 1255; 18th Ann. Rep. Indiana Dep. Geol. Nat. Res., p. 318, pi. 9, figs. 39, 40 (adv. sheets 1892). Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 964, pi. 40, figs. 11, lla. Richmond (Whitewater-Saluda): Madison, Indiana. HOLOPEA HUDSONI Raymond. See Trochonema hudsoni. 628 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Holopea incerta Foerste. Holopea incerta Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 139, pi. 1, fig. 4. Trenton (Upper): Near Rogers Gap, Kentucky. Holopea insignis Ulrich and Scofield. Holopea insignis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1065, pi. 79, figs. 1-5. Black River: Minneapolis, Cannon Falls, and Faribault, Minnesota (Platteville) ; Lincoln County, Missouri (Auburn). Cotypes.Cat. Nos* 45840, 45841, U.S.N.M. Holopea lavlnia Billings. Holopea Lavinia Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 28 (adv. sheets 1862). Trenton: Township of Admaston, Canada. Holopea leiosoma Billings. Holopea leiosoma Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 187, fig. 1( OzarHan ? (Levis erratic): Point Levis, Quebec. Holopea magniventra Whitfield. Holopea magniventra Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 18' p. 83; Geol. Wisconsin, 4, 1882, p. 316, pi. 24, figs. 2, 3. Magadan (Guelph): Carlton, Wisconsin. Holopea mediocris (Billings). Cyclonema mediocris Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 56. Anticostian (Jupiter River): Four miles west of Southwest Point, Anticosti. HOLOPEA MICROCLATHRATA Hudson. See Gyronema microclathratum. Holopea minuta Savage. Holopea minuta Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 102, pi. 5, fig. 30. Upper Medinan (Edgewood): Near Edgewood, Missouri. HOLOPEA NANA Meek. See Cyclora minuta. Holopea nashvillensis Ulrich. Holopea nashvillensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1068. Trenton (Catheys): Nashville, Tennessee. Holotype.Cat. No. 45842, U.S.N.M. Holopea nereis Billings. Holopea Nereis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 27 (adv. sheets 1862). Black River (Leray): Pauquettes Rapids, Ottawa River, near L'Original, Ottawa, and Island of Montreal, Canada. Holopea niagarensis Winchell and Marcy. Holopea niagarensis Winchell and Marcy, Mem. Boston, Soc. Nat. Hist., 1, 1865, p. 99, pi. 2, fig. 17. Niagaran (Racine): Chicago, Illinois. HOLOPEA OBESA Whitfield. See Sinuopea obesa. Holopea obliqua Hall. Holopea obliqua Hall, Pal. New York, 1, 1847, p. 170, pi. 37, figs. 2a-d. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 283, fig. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 629 Holopea obliqua Continued. Holopea cf. obliqua Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 74, pi. 3, fig. 5. Turbo obliquus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 158, pi. 5, fig. 8; Man. Geol., 1860, p. 98, fig. 87. Trenton: Middleville and Watertown, New York. ?St. Peter sandstone; Minnesota. [olopea obscura (Hall). Turbo? obscura Hall, Pal. New York, 1, 1847, p. 12, pi. 3, fig. 8 (sup. 315). Holopea obscura Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 537 (gen. ref.). Canadian (Beekmantown) : Fort Plain, New York. Holopea obsoleta (Hall). Cyclonema? obsoleta Hall, Pal. New York, 2, 1852, p. 90, pi. 28, figs. 3a, b. Holopea obsoleta Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 348 (gen. ref.). Lower Clinton: Medina and Lockport, New York. Holopea obsoleta elevata Foerste. Holopea obsoleta var. elevata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 290, pi. 6, fig. 17. Clinton: Cumberland Gap, Tennessee. Holopea? occldentalls Nicholson. t Holopea? occidentalis Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 85, fig.; Quart. Jour. Geol. Soc. London, 31, 1875, p. 550, 551, fig. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 95. Niagaran (Guelph): Elora, Ontario. Holopea ophelia Billings. Holopea Ophelia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 222, fig. 204. Chazyan.(Quebec-L): Point Rich, Newfoundland. Holopea ovalls Billings. Holopea ovalis Billings, Canadian Nat. Geol., 4, 1859, p. 351, fig. 2. Canadian (Beekmantown): Second Concession of Godmanchester, Canada. Holopea oxfordensis Ulrich. Holopea oxfordensis Ulrich, Geol. Minnesota, 3, 1897, pt. 2, p. 1068. Richmond (Whitewater): Oxford, Ohio. Cotypes.Czt. Nos. 45843, 45844, U.S.N.M. Holopea paludinlformis Hall. Holopea paludiniformis Hall, Pal. New York, 1, 1847, p. 171, pi. 37, figs. 3a, 3b. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 284, figs. Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 75. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1067. Ruedemann, Bull. New York State Mus., 49, 1901, p. 35. Turbo americanus D'Orbigny, Prodr. de Pal., 1, 1849, p. 6. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 158, pi. 6, fig. 20. Trenton: Watertown, New York; near Cannon Falls, Minnesota (Prosser). ?St. Peter sandstone; Minnesota. 630 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Holopea parvula Ulrich. Holopea parvula Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1067, pi. 79, fig. 19. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 187, pi. 12, fig. 30. Trenton: Near Burgin, Kentucky (Flanagan); Jacksonburg, New Jersey. Holotype.Czt. No. 45845, U.S.N.M. HOLOPEA PERUNDOSA Sardeson. See Holopea pyrene. HOLOPEA PERVETUSTA Grabau and Shimer. See Holopea antiqua pervetusta. Holopea? plauta Raymond. Holopea? plauta Raymond, Ann. Carnegie Mus., 3, 1906, p. 577; ibid., 4, 1908, p. 214, pi. 54, fig. 9. Chazyan (Crown Point): Valcour Island and Chazy, New York. Holopea proserpina Billings. Holopea Proserpina Billings, Pal. Foss., 1 Geol. Surv. Canada, 1865, p. 28. (Adv. sheets, 1862.) Canadian (Beekmantown): Phillipsburg, Quebec. Holopea pyrene Billings. Holopea Pyrene Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 145, fig. 91; Pal. Foss., 1, Geol. Surv. Canada, p. 27, fig. 26. (Adv. sheets, 1862.) Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 423. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1067, pi. 79, figs. 13- 18. Grabau, Amer. Nat., 36, 1902, p. 925. Holopea(?) perundosa Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 336, pi. 6, figs. 12, 13; p. 343. Black River (Leray): Pauquettes Rapids, Ottawa River, Canada. Trenton (Prosser): Near Cannon Falls, Minnesota. PlesiotypesC&t. No. 45846, U.S.N.M. Holopea? raymondia Cleland. Holopea(?) raymondia Cleland, Bull. Amer. Pal., 4, 1903, p. 15, pi. 3, figs. 13, 14. Ozarkian (Little Falls): Little Falls, New York. Holopea reversa Hall. Holopea reversa Hall, Canadian Nat. Geol., 5, 1860, p. 154, fig. 14. Silurian: Arisaig, Nova Scotia. Holopea rotunda Ulrich and Scofield. Holopea rotunda Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1066, pi. 79, figs. 20, 21. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 676, fig. 942. Black River (Platteville): Dixon, Illinois. Trenton: Hartsville, Tennessee. Cotypes,Czt. Nos. 45847, 45848, U.S.N.M. Holopea scrutator Raymond. Holopea scrutator Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 379; Ann. Carnegie Mus., 4, 1S08, p. 212, pi. 54, figs. 7, 8. Chazyan: Valcour Island and Chazy, New York (Day Point, Crown Point); East Tennessee (Lenoir). Holopea similis Ulrich and Scofield. Holopea similis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1066, pi. 79, fig. 26. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 676, fig. 942. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 631 Holopea slmilis Continued. Black River (Decorah): Minneapolis and St. Paul, and Goodhue and Fillmore Counties, Minnesota. Trenton (Prosser): Near Cannon Falls, Minnesota. ?Maysville: Covington, Kentucky. >pea subconica Hall. Holopea subconica Hall, Pal. New York, 3, 1859, p. 294, pi. 54, figs, la, lb. Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 177. Cayugan (Manlius): Near Auburn, Cayuga County, New York. Upper Monroan (Lucas): Salt shaft, Detroit, Michigan. Holopea supraplana Ulrich and Scofield. Hclopea supraplana Ulrich and Scofield, Geol. Minnesota, 3, 1897, pt. 2, p. 1068, pi. 79, figs. 27, 28. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 187, pi. 12, figs. 31, 32. Trenton: Kenyon, Minnesota (Prosser); Jacksonburg, New Jersey. Cotypes.Cst. No. 45849, U.S.N.M. Holopea symmetrica Hall. Holopea symmetrica Hall, Pal. New York, 1, 1847, p. 170, pi. 37, fig. 1. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 186, pi. 12, figs. 26, 27. Turbo symmetricus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 158, pi. 5, fig. 17. Trenton: Middleville, New York; Jacksonburg, New Jersey. HOLOPEA TEXTILIS Grabau and Shimer. See Strophostylus textilis. HOLOPEA TURGIDA Billings. See Sinuopea turgida. Holopea ventricosa Hall. Holopea ventricosa Hall, Pal. New York, 1, 1847, p. 171, pi. 37, figs. 4a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 284, figs. Turbo ventricosus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 158, pi. 6, fig. 19a, b. Trenton: Middleville, New York. Holopea? voluta Cleland. Holopea(?) voluta Cleland, Bull. Amer. Pal., 4, 1903, p. 14, pi. 3, fig. 12. Ozarkian (Little Falls): Little Falls, New York. HOLOPELLA? SUBULATA Foerste. See Hormotoma subulata. HOMALONOTUS Koenig. Genotype: H. knighti Koenig. Homalonotus Koenig, Icones Foss. Sectiles, 1825, p. 7. Murchison, Sil. Syst., 1839, p. 651. Edwards, Hist. Nat. d. Crust., 3, 1840, p. 314. Bronn. Neues Jahrb. f. Min., etc., 1840, pp. 445, 451. Goldfuss, ibid., 1843, pp. 541, 559. Castelnau, Essai Syst. Sil. I'Amerique Septent, 1843, p. 20. Burmeister, Org. der. Tril., Berlin, 1843, p. 99. Emmrich, Neues Jahrb. f. Min., etc., 1845, p. 43. Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (Extract), 1847, p. 89, pi. 5, fig. 51. McCoy, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, p. 399. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 778; Syst. Sil. du Centre Boheme, 1, 1852, p. 577, pis. 29, 34. Roemer, Neues Jahrb. f. Min., etc., 1853, p. 581. McCoy, British Pal. Rocks Fossils, 1854, p. 167. Pictet, Traite de Pal., 2d ed., 1854, p. 504. Chapman, Canadian Jour., n. s., 1, 1856, p. 272; ibid., 8, 1863, p. 32; Expos. Min. Geol. Canada, 1864, p. 140. Salter, Mon. British Tril., Pal. Soc., 1865, p. 103; Cat. Camb. Sil. Foss., 1873, p. 133. Angelin, Pal. Scandinavica, 3d ed., 1878, p. 29. Zittel, Handb. Pal., 2, 1885, p. 604. Hall and Clarke, Pal. New York, 7, 1888, pp. 23, 24, fig. Miller, N. A. 632 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HOMALONOTUS Continued. Geol. Pal., 1889, p. 550. Koken, Die Leitfossllien, Leipzig, 1896, p. 23, fig. 14, figs. 4-6. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 312; ibid., 7, 1901, p. 221. Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 635. Lind- strom, Kongl. Sven. Vet.-Akad. HandL, 34, No. 8, 1901, p. 57. Grabau, Bull. New York State Mus., 45, 1901, p. 221. Woodward, Geol. Mag., dec. 4, 10, 1903, p. 20. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 316. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 724. Trimerus Green, Tril. North America, 1832, p. 81. Salter, Mon. British Tril., Pal. Soc., 1865, p. 104. Zittel, Handb. Pal., 2, 1885, p. 605. Koken, Die Leit- fossilien, Leipzig, 1896, p. 23. Clarke, Arch. Mus. Nac. Rio de Janeiro, 9, 1890, p. 10, footnote. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 724. Dipleura Green, Mon. Tril. North America, 1832, p. 78. Salter, Mon. British Tril. , Pal. Soc., 1865, p. 105. Zittel, Handb. Pal., 2, 1885, p. 605. Koken, Die Leitfossilien, Leipzig, 1896, p. 23. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 105, pi. 3, fig. 27. Clarke, Arch. Mus. Nac. Rio de Janeiro, 9, 1890, p. 10, footnote. Raymond, Zittel-Eastman, Textb. Pal., 1913, p. 724. Brongniartia Eaton, Geol. Textb., 1832, p. 32, pi. 2, fig. 20; Amer. Jour. Sci., 22, 1832, p. 165. Edwards, Hist. Nat. d. Crust., 3, 1840, p. 346. Salter, Mon, British Tril., Pal. Soc., 1865, p. 104. Zittel, Handb. Pal., 3, 1885, p. 605. Koken, Die Leitfossilien, Leipzig, 1896, p. 23. Brongniatia Green, Mon. Tril. North America, 1832, p. 90. HOMALONOTUS ATLAS Castelnau. See Homalonotus delphinocephalus. Homalonotus? bistrami Hoek. Homalonotus bistrami Hoek, Neues Jahrb. Min., Geol. Pal., 34, 1912, p. 249, pi. 8, figs. 19, 20. Ordovician: Cochabamba, Bolivia. A Homalonotus dawsoni Hall. Homalonotus dawsoni Hall, Canadian Nat. Geol., 5, 1860, p. 155, fig. 17. Dawson, Acad. Geol., 2d ed., 1868, p. 606, fig. 214; Canadian Nat. Geol., 5, I860, p. 298, fig. 1; Acadian Geol., Suppl. Chap., 1860, p. 57, footnote; p. 68, fig. C3; ibid., 2d ed., 1878, p. 77, fig. 14; Geol. Mag., dec. 2, 4, 1877, p. 57, fig. 2. Silurian (Moydart, Stonehouse): Arisaig, Nova Scotia. Homalonotus delphinocephalus (Green). Trimerus delphinocephalus Green, Mon. Tril. North America, 1832, p. 82, pi. fig. 1. Harlan, Trans. Geol. Soc. Pennsylvania, 1, pt. 1, 1834, p. 105.- Raymond, Zittel-Eastman Textb. Pal., 1913, p. 724, fig. 1402. Brongniartia platycephala Harlan, Trans. Geol. Soc. Pennsylvania, 1, pt. 1, 1! p. 105. Homalonotus atlas Castelnau, Ess. Syst. Sil. FAmer. Sept., 1843, p. 20, pi. 4, fig. Homalonotus giganteus Castelnau, ibid., p. 20, pi. 3, fig. 1. Homalonotus herculaneus Castelnau, ibid., p. 20, pi. 4, fig. 5. Ogygies latissimus Eaton, Amer. Jour. Sci. and Arts, 21, 1832, p. 136. Homalonotus delphinocephalus Murchison, Sil. Syst., 1839, p. 651. Hall, G( New York, pt. 4. 1843, p. 103, fig. 34, tab. org. rem., 11, fig. 1. Owen, Aim Jour. Sci. Arts, 48, 1845, p. 307, pi. 34, p. 311. Hall, Pal. New York, 2, p. 104, pi. 31, figs. 5a-b; p. 309, pi. 68, figs. 1-14. Billings, Canadian Nat Geol., 1, 1856, p. 320, fig. 10. Lincklaen, 14th Rep. New York State Cs- Nat. Hist., 1861, pi. 8, fig. 4. Hall, Trans. Albany Inst., 4, 1863, p. 227.- Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 319, fig. 339. Chapi Canadian Jour., n. s., 8, 1863, p. 32, fig. 148; p. 212, fig. 222; Expos. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 633 Homaionotus delphinocephalus Continued. Geol. Canada, 1864, p. 140, fig. 148; p. 184, fig. 222. Hall, 28th Rep. New York State Mus. Nat. Hist., 1877, doc. ed., pi. 32, figs. 17, 18; mus. ed., 1879, p. 187, pi. 32, figs. 17, 18; llth Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 332, pi. 34, figs. 17, 18. Miller, N. A. Geol. Pal., 1889, p. 550, fig. 1014. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 288, fig. Grabau, Bull. Buffalo Soc. Nat. Hist., 7, 1901, p. 221, fig. 153; Bull. New York State Mus. Nat. Hist., 45, 1901, p. 221, fig. 153. Foerste, Cincinnati Soc. Nat. Hist., Jour. 21, 1909, p. 34, pi. 2, figs. 19a-c. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 317, fig. 1630. Upper Clinton: Niagara County, etc., New York; Pennsylvania; Maryland; Ontario (Rochester); Lewis County, Kentucky (West Union); ?Waldron, Indiana (Waldron). Flastotype.Csit. No. 4910, U.S.N.M. HOMALONOTUS oiGANTEUS Castelnau. See Homaionotus delphinocephalus. HOMALONOTUS HERCULANEUS Castelnau. See Homaionotus delphinocephalus. Homaionotus linares Salter. Homaionotus Linares Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 66, pi. 5, figs. 1, 2. Silurian: Mount Illampu, Bolivia. Homaionotus trentonensis Simpson. Homaionotus trentonensis Simpson, Trans. Amer. Phil. Soc., n. s., 16, 1890, p. 460, fig. 31. Brongniartia trentonensis Collie, Bull. Geol. Soc. Amer., 14, 1903, p. 418, pi. 59, figs. 1, 2. Trenton: Reedsville, Bellefonte, etc., Pennsylvania. HOMOCRINUS Hall. Genotype: H. parvus Hall. Homocrinus Hall, Pal. New York, 2, 1852, p. 185; ibid., 3, for 1859, 1861, p. 102. Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 182. Zittel, Handb. Pal., 1, 1879, p. 361. Wachsmuthand Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, pp. 285, 300 (Rev. Pal., pt. 1, pp. 62, 77); ibid., 1886, p. 115; ibid., 1890, p. 380; Amer. Jour. Sci., 3d ser., 26, 1883, p. 376, fig. 6. Miller, N. A. Geol. Pal., 1889, p. 255. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 16; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 101; Geol. Mag., dec. 4, 6, 1899, p. 33, fig. 7; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 179, fig. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 155. Zittel, Grundzuge Pal., 1, 1910, p. 152. Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 289, fig. 7. Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 473. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 217. HOMOCRINUS? ^MULUS Wachsmuth and Springer. See Cyathocrinus? semulus. HOMOCRINUS ALTERNATUS Hall. See Dendrocrinus alternatus. Ilomocrlnus ancilla (Hall). Dendrocrinus anrilla Hall, Trans. Albany Inst., 10, 1883, p. 65 (adv. sheets, 1879, p. 9); llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 271, pi. 15, fig. 19. Homocrinus ancilla Wachsmuthand Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 144 (Rev. Pal., pt. 3, sec. 2, p. 220). Slocom, Field Columbian Mus., 2, 1908, p. 289, pi. 85, figs. 9-11. Niagaran: Waldron, Indiana (Waldron); near Lemont, Illinois (Racine). 634 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HOMOCRINUS ANGUSTATUS Meek and Worthen. See Dendrocrinus angustatus. HOMOCRINUS CONSTRICTUS Hall. See Ohiocrinus constrictus. Homocrinus cylindricus Hall. Homocrintis cylindricus Hall, Pal. New York, 2, 1852, p. 186, pi. 41, figs. 2a-c, 3a-c. Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 291, pi. 84, figs. 14, 15. Niagaran: Lockport, New York (Rochester) ; near Lemont, Illinois (Racine). HOMOCRINUS GRACILIS Hall. See Dendrocrinus gracilis. HOMOCRINUS LAXUS Hall. See Ohiocrinus laxus. HOMOCRINUS NUCLEUS Wachsmuth and Springer. See Botryocrinus nucleus. Homocrinus parvus Hall. Homocrinus parvus Hall, Pal. New York, 2, 1852, p. 185, pi. 41, figs, la-f . Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 474, pi. 42, figs.1-8. Clinton (Rochester): Lockport, New York. HOMOCRINUS POLYDACTYLUS Shumard. See Cupulocrinus polydactylus. HOMOCRINUS POLYXO w achsmuth and Springer. See Botryocrinus polyxo. HOMOCRINUS SCOPARIUS Hall. See Lasiocrinus scoparius. HOMOCYSTIS Carpenter. See Cheirocrinus Eichwald. HOMOCYSTITES Barrande. See Cheirocrinus Eichwald. HOMCEOSPIRA Hall and Clarke. Genotype: Rhynchospira evax Hall. Homceospira Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 112; 13th Ann. Rep. New York State Geol., 1895, p. 792. Schu chert, Zittel-Eastman Textb. Pal., 1, 1900, p. 337; 2d ed., 1913, p. 414. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 200; Bull. New York State Mus., 45, 1901, p. 200. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. -344. Homceospira apriniformis Hall. Atrypa aprinis Hall (not Verneuil), Pal. New York, 2, 1852, p. 280, pi. 57, fig. 7. Rhynchospira? aprinis Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 77. Rhynchospira apriniformis Hall, Pal. New York, 3, 1859, p. 485. Rhynchonella aprinis Miller, N. A. Geol. Pal., 1889, p. 367. Homoaospira apriniformis Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. Ill, pi. 83, figs. 24, 25. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 200, fig. 121; Bull. New York State Mus., 45, 1901, p. 200, fig. 121. Clinton (Rochester): Lockport, New York. Homoeospira beecheri Foerste. Homceospira beecheri Foerste, Jour. Geol., 11, 1903, p. 709; Bull. Sci. Lab. Denison Univ., 14, 1909, p. 90, pi. 1, figs. 8A, B. Niagaran (Brownsport): Brownsport Furnace, Decatur County, Tennessee. Homoeospira evax (Hall). Rhynchospira evax Hall, Trans. Albany Inst., 4, 1863, p, 213. Retzia evax Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, p. 160, pi 25, figs. 13-21; llth Rep. State Geol. Indiana, 1882, p. 302, pi. 25, figs. 1 21. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 55, pi. fig s- 1-9. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 863, figs.- Miller, N. A. Geol. Pal., 1889, p. 366, fig. 604. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 635 Homceospira evax Continued. Homoeospira evax Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 112, pi. 50, figs. 15-20 (?32-35). Homeospira (Retzia) evax Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 344, fig. 441. Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee. Homoeospira fiscellostriata Savage. Homreospira fiscellostriata Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 87, pi. 4, figs. 23, 24. Upper Medinan (Edgewood): Louisiana, Missouri. Homoeospira immatura Savage. Homoeospira immatura Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 51, pi. 1, figs. 16-18. Upper Medinan (Girardeau): Near Thebes, Illinois. Homoeospira pisum Foerste. Homoeospira pisum Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 90, pi. 1, fig. 7. Niagaran (Brownsport) : Bath Springs, Tennessee. Homoeospira schucherti Foerste. Homoeospira schucherti Foerste, Jour. Geol., 11, 1903, p. 709; Bull. Sci. Lab. Denison Univ., 14, 1909, p. 89, pi. 1, fig. 10A, B. Niagaran (Brownsport): Brownsport Furnace, etc., Tennessee. Homoeospira schucherti elongata Foerste. Homoeospira schucherti-elongata Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 89, pi. 1, fig. 9A, B. Niagaran (Brownsport) : Bath Springs, Tennessee. Homoeospira sobrina (Beecher and Clarke). Retzia sobrina Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 61, pi. 5, figs. 10-16. Homreospira sobrina Hall and Clarke, Pal. New York, 8 pt. 2, 1893, p. 112, pi. 50, figs. 26-28. Niagaran (Waldron) : Waldron, Indiana. Homoeospira subcircularis Savage. Homoeospira subcircularis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 88, pi. 4, figs. 26, 27. Upper Medinan (Edgewood-Noix) : Near Louisiana, Missouri. HOMOTRYPA Ulrich. Genotype: H. curvata Ulrich. Homctrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 240. Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 9. Miller, N. A. Geol. Pal., 1889, p. 309. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 370, 409. Rominger, Amer. Geol., 6, 1890, p. 119. Ulrich, Geol. Minnesota, 3, 1893, p. 235; Zittel's Textb. Pal., (Engl. ed.), 1896, p. 273. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 575. Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 29. Bassler, Proc. U. S. Nat. Mus., 26, 1903, pp. 565, 566. Grabau and Shimer, N. A. Index Fossils, 1, p. 128. Oumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 748. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 184, 185; Zittel-Eastman Textb. Pal., 1913, p. 332, fig. 475. 636 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Homotrypa alta Cumings and Galloway. Homotrypa alta Cumings and Galloway, 37th Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1913, p. 77, pi. 9, figs. 1-lc; pi. 10, figs. 1-lc. Maysville (Mount Hope-Fairmount) : Big Four Railroad, near Guilford, Indiana. Homotrypa? arbuscula Ulrich. Homotrypa arbuscula Ulrich, Geol. Surv. Illinois, 8, 1890, p. 409, pi. 38, figs. 3-3c. Keyes, Missouri Geol. Surv., 5, 1894, p. 13. Black River: High Bridge, Kentucky (Lowville) ; Calhoun County and Dixon, Illinois (Platteville). Cotypes. Cat. Nos. 43304, 43305, U.S.N.M. Homotrypa austini Bassler. Homotrypa austini Bassler, Proc. IT. St Nat. Mus., 26, 1903, p. 584, pi. 24, figs. 5-9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 838, pi. 16, figs. 7-7b; pi. 29, figs. 11, lla. Richmond (Whitewater): Near Wilmington, Ohio. Cotypes. -Cat. No. 41762, U.S.N.M. Homotrypa bass)"ri Nickles. Homotrypa bassleri Nickles, Jour. Cincinnati Soc. Nat. Hist., 20, 1902, p. 103, 104, fig. 1-5. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 578. Richmond (Arnheim): Lebanon. Oregonia, etc., Ohio. Homotrypa callosa Ulrich. Homotrypa callosa Ulrich, Geol. Minnesota, 3, 1893, p. 243, pi. 20, figs. 15-21. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 139, 140 (p. 576). Trenton: Burgin and Frankfort, Kentucky (Wilmore); Cannon Falls, Minnesota (Prosser). Cotypes. Cat. Nos. 43578, 43579, U.S.N.M. Homotrypa cincinnatiensis Bassler. Homotrypa cincinnatiensis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 576, pi. 21, figs. 4-10. Maysville (Fainnount) : Cincinnati, Ohio, and vicinity; Maysville and McKin- ney, Kentucky. Cotypes. Cat. No. 41744, U.S.N.M. Homotrypa communis Bassler. Homotrypa communis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 581, pi. 23, figs. 1-4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 839, pi. 17, figs. 1-ld; pi. 29, fig. 12. Richmond (Waynesville) : Oregonia, Waynesville, etc., Ohio; Indiana; Kentucky. Cotypes. Cat. No. 41755, U.S.N.M. Homotrypa? confluens (Foerste). Monotrypella confluens Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 172; ibid., 3, 1888, pi. 16, fig. 4. Homotrypa confluens Foerste, Geol. Surv. Ohio, 7, 1895. p. 600. Upper Medinan (Brassfield): Dayton, Ohio. HOMOTRYPA CONSTELLARIFORMIS Cumings. See Homotrypa ramulosa. Homotrypa curvata Ulrich. Homotrypa curvata Ulrich, Jour Cincinnati Soc. Nat. Hist., 5, 1882, p. 242, 10, figs. 7-7d. Simpson, 14th Ann. Rep. State Geol. New York for 1894, li figs. 137, 138 (p. 576). Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 575. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 637 Homotrypa curvata Continued. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 129. Cumings, 32d Ann. Rep. Dept. Geol. Nat. Res. Indiana, 1908, p. 840, pi. 17, figs. 3-3b; pi. 29, fig. 13. Monticulipora curvata J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 71. Maysville (Fairmount): Cincinnati, Ohio, and vicinity. Cotypes.C&t. No. 41729, U.S.N.M. Homotrypa curvata praeclpta Bassler. Homotrypa curvata var. prsecipta Baesler, Proc. U. S. Nat. Mus., 26, 1903, p. 575, pi. 23, fig. 15. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, p. 841, pi. 18, fig. 4; pi. 30, fig. 7, 7a. Eden (Southgate): West Covington, Kentucky. Eolotype.Csit. No. 41735, U.S.N.M. Homotrypa cylindrica Bassler. Homotrypa cylindrica Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 585, pi. 22, figs. 8-13. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 842, pi. 17, figs. 4, 4a; pi. 29, fig. 14. Richmond (Whitewater): Richmond and Versailles, Indiana; Oxford, Ohio. Cotypes.G&t. No. 41758, U.S.N.M. Homotrypa dawsoni (Nicholson). Monticulipora (Heterotrypa) Dawsoni Nicholson, Genus Monticulipora, 1881, p. 141, pi. 5, figs. 3-3f. Monticulipora dawsoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 241. James and James, ibid., 11, 1888, p. 15. J. F. James, ibid., 18, 1895, p. 68. Homotrypa dawsoni Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 291. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 581, pi. 25, figs. 9, 10. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 842, pi. 17, figs. 5, 5a; pi. 30, fig. 1. Richmond (Waynesville): Waynesville, Clarksville, etc., Ohio; Versailles, In- diana. Pksiotypes.Gzt. No. 41749, U.S.N.M. Homotrypa dumosa Bassler. Homotrypa dumosa Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 576, pi. 20, fig. 1; pi. 21, figs. 1-3. Maysville (Fairmount): Covington, Kentucky, and vicinity. No. 41741, U.S.N.M. Homotrypa exllis Ulrich. Homotrypa exilis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 80; Geol. Minnesota, 3, 1893, p. 236, pi. 19, figs. 10-16. Black River (Decorah): Minneapolis, Minnesota. Cotypes.GsLt. No. 43574, U.S.N.M. Homotrypa flabellarls Ulrich. Homotrypa flabellaris Ulrich, Geol. Surv. Illinois, 8, 1890, p. 411, pi. 32, figs. 3-3c. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 580. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 129. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 845, pi. 18, figs. 1-lb; pi. 30, fig. 2. Monticulipora flabellaris J. F. James, Jour. Cincinnati Soc. Nat. His';., 18, 1895, p. 75. Maysville (Richmond): Wilmington, Illinois (Fernvale); Ohio; Indiana; Ken- tucky; Tennessee. Figured sections of cotypes.G&t. No. 43767, U.S.N.M. 638 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Homotrypa flabellaris frondosa Bassler. Homotrypa frondosa Cuminga (not Chaetetes frondosus Edward and Haime, nor Monticulipora frondosa D'Orbigny), Amer. Geol., 29, 1902, p. 208, pi. 10, figs. 11, 12; pi. 11, figs. 2, 5; pi. 12, fig. 1. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 579. Homotrypa flabellaris var. frondosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 846, pi. 18, figs. 3, 3b; pi. 30, fig. 3. Richmond (Arnheim): Harmans Station, Indiana; Ohio. Homotrypa flabellaris spinifera Bassler. Homotrypa flabellaris var. spinifera Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 580, pi. 21, figs. 11-15. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indi- ana, 1908, p. 847, pi. 18, fig. 2. Maysville and Richmond: Cincinnati, Ohio, and vicinity (Fairmount); Rich- mond, Indiana; Oxford, etc., Ohio (Richmond). Holotype. Cat. No. 41778, U.S.N.M. HOMOTRYPA. FRONDOSA Cumings. See Homotrypa flabellaris frondos?,. Homotrypa gelasinosa Ulrich. Homotrypa gelasinosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 410, pi. 32, figs. 2-2d. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 587. Monticulipora gelasinosa J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 202. Richmond (Fern vale): Wilmington, Illinois. Figured sections of holotype. Cat. No. 43768, U.S.N.M. Homotrypa glabra Cumings and Galloway. Homotrypa glabra Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 78, pi. 11, figs. 1-ld. Eden (McMicken): Big Four Railroad, near Guilford, Indiana. Homotrypa grandis Bassler. Homotrypa grandis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 578, pi. 20, figs. 7-10. Maysville (Leipers) : Near Goodlettsville, Davidson County, Tennessee. Cotypes.C&t. No. 41764, U.S.N.M. HOMOTRYPA INSIGNIS Ulrich. See Homotrypa subramosa-insignis. Homotrypa? intercalaris Ulrich. Homotrypa? intercalaris Ulrich, Geol. Minnesota, 3, 1893, p. 238, fig. 13. Black River (Decorah): St. Paul and Minneapolis, Minnesota. Cotypes.Ca,t. No. 43577, U.S.N.M. Homotrypa libana Bassler. Homotrypa libana Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 578, pi. 22, figs. 1-3. Richmond (Arnheim): Lebanon, Ohio. Holotype. Cat. No. 34329, U.S.N.M. Homotrypa minnesotensis Ulrich. Homotrypa minnesotensis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minne- sota, 1886, p. 79; Geol. Minnesota, 3, 1893, p. 235, pi. 19, figs. 1-9. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 129. Sardeson, Jour. Geol., 9, 1901, p. 12. Black River (Decorah): Minneapolis, St. Paul, Fountain, etc., Minnesota; Decorah, Iowa; Kentucky; Tennessee. Cotypes.C&t. Nos. 43571, 43572, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 639 Homotrypa minnesotensis montifera Ulrich. Homotrypa minnesotensis var. montifera Ulrich, Geol. Minnesota, 3, 1893, p. 236, pi. 19, fig. 3a. Black River (Decorah): St. Paul, Minnesota. Holotype.Czt. No. 43573, U.S.N.M. Homotrypa nlcklesi Bassler. Homotrypa nicklesi Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 586, pi. 22, figs. 4-7. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 847, pi. 18, figs. 6, 6a; pi. 30, fig. 4. Richmond: Ray wick, Kentucky. Cotypes Cat. No. 34328, U.S.N.M. HOMOTRYPA NITIDA Bassler. See Homotrypa ramulosa. Homotrypa nodulosa Bassler. I Homotrypa nodulosa Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 23, figs. '5-11; pi. 25, fig. 15. Richmond: Hanover, Ohio ( Waynes ville ); Richmond, Indiana (Whitewater). Cotypes. Cat. No. 41753, U.S.N.M. Homotrypa obliqua Ulrich. Homotrypa obliqua Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 243, pi. 10, figs. 6, 6b. Miller, N. A. Geol. Pal., 1889, fig. 489 (p. 310). J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 124. Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 575, pi. 23, figs. 12-14. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 129. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 848, pi. 19, figs. 1-lb; pi. 30, fig. 6. Maysville (Fairmmmt-Corry ville) : Cincinnati, Ohio, and vicinity. Eolotype and plesiotypes. Cat. Nos. 43671, 41736, U.S.N.M. Homotrypa pulchra Bassler. Homotrypa pulchra Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 577, pi. 20, figs. 11-14. Maysville (Mount Auburn) : Cincinnati, Lebanon, etc., Ohio. Cotypes. Cat. No. 41747, U.S.N.M. Homotrypa ramulosa Bassler. Homotrypa ramulosa Bassler, Proc. U. S.'Nat. Mus., 26, 1903, p. 585, pi. 25, figs. 1-4. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 849, pi. 19, figs. 2-2b; pi. 30, fig. 8. Homotrypa constellariformis Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 839, pi. 17, figs. 2-2b. Homotrypa nitida Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 586, pi. 20, fig. 15; pi. 25, figs. 5-8. Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 848, pi. 18, figs. 5, 5a; pi. 30, figs. 5, 5a. Richmond (Whitewater): Versailles, Weisburg Station, Osgood, etc., Indiana. Cotypes. Cat. Nos. 41771, 41760, U.S.N.M. Observation. H. nitida, H. ramulosa, and H. constellariformis have been found to represent the same species, the first being based on the immature branches, the second on the main portions of the zoaria, and the third on the best developed parts. Homotrypa richmondensis Bassler. Homotrypa richmondensis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 24, figs. 1-4. 640 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. Homotrypa richmondensls Continued. Richmond (White water) : Richmond and Versailles, Indiana; Hanover, Oxford, etc., Ohio. Cotypes. Cat. No. 41784, U.S.N.M. Homotrypa separata Ulrich. Homotrypa separata Ulrich, Geol. Minnesota, 3, 1893, p. 237, pi. 19, figs. 17-20. Bassler, Zittel-Eastman Texb. Pal., 1913, p. 332, fig. 477d. Black River (Decorah): Minneapolis, Chatfield, etc., Minnesota. Holotype.C&t. No. 43576, U.S.N.M. Homotrypa? similis Foord. Homotrypa similis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 10, pi. 2, figs. 2-2d. Ulrich, Geol. Minnesota, 3, 1893, p. 242, pi. 20, figs. 28-33. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 185-187. Trenton: Ottawa, Ontario; St. Paul, Cannon Falls, etc., Minnesota. Middle Ordovician (Wassalem) : Uxnorm, near Reval, Esthonia, Russia. / Plesiotypes. Cat. Nos. 43575, 57273, U.S.N.M. HOMOTRYPA SOLIDA Nickles and Bassler. See Eridotrypa solida. Homotrypa spinea Cumings and Galloway. Homotrypa spinea Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 79, pi. 11, figs. 1-lc; pi. 12, figs. 1-ld. Maysville (Mount Hope-Fairmount) : Big Four Railroad, near Guilford, Indiana. Homotrypa splendens Bassler. Homotrypa splendens Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 587, pi. 25, figs. 11-14. Richmond (Fernvale): Wilmington, Illinois. Cotypes. Cat. No. 41761, U.S.N.M. Homotrypa subramosa Ulrich. Homotrypa subramosa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 81; Geol. Minnesota, 3, 1893, p. 239, pi. 19, figs. 21-28. Ulrich, Zittel's Textb. Pal. (Engl. ed.), fig. 451A-C (not D=Homotrypa separata Ulrich) (p. 273). Grabau and Shiiner, N. A. Index Fossils, 1, 1907, p. 128, fig. 186c. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 332, fig. 477a-c; Bull. U. S. Nat. Mus., 77, 1911, pp. 187-189, figs. 99, 100. Black River (Decorah) and Trenton (Prosser): St. Paul, Minneapolis, etc., Minnesota; Decorah, Iowa. Middle Ordovician (Kuckers) : Reval, Esthonia, Russia. Cotypes and plesiotypes. Cat. Nos., 43570, 57274, U.S.N.M. Homotrypa subramosa insignis (Ulrich). Homotrypa insignis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 82. Homotrypa subramosa var. insignis Ulrich, Geol. Minnesota, 3, 1893, p. 239. Trenton (Prosser): St. Paul and Goodhue and Fillmore Counties, Minnesota. Decorah, Iowa. Cotypes.- Oat. No. 43998, U.S.N.M. Homotrypa tuberculata Ulrich. Homotrypa tuberculata Ulrich, Geol. Minnesota, 3, 1893, p. 240, fig. 14. Black River (Decorah) : Cannon Falls, Minnesota. Cotypes Oat. No. 43580, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 641 Homotrypa worthenl (James). Monticulipora (Monotrypa) wortheni James, Paleontologist, no. 6, 1882, p. 50; no. 7 (1883), pi. 1, fig. 2. Monticulipora wortheni J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 207. James and James, ibid., 10, 1888, p. 184, pi. 11, figs. 3a, b. Homotrypa wortheni Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 24, figs. 10-14. Cumings, 32d Ann. Kept. Dep. Geol. Nat. Res. Indiana, 1908, p. 849, pi. 19, figs. 3, 3c; pi. 30, fig. 9. Richmond (Whitewater): Lynchburg, etc., Ohio; Richmond, etc., Indiana. Plesiotypes. Cat. No. 41766, U.S.N.M. Homotrypa wortheni intercellata Bassler. Homotrypa wortheni var. intercellata Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 584, pi. 24, fig. 17. Richmond (Whitewater?) : Near Osgood and Versailles, Indiana. Cotypes.CsA. No. 41768, U.S.N.M. Homotrypa wortheni prominens Bassler. Homotrypa wortheni var. prominens Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 584, pi. 24, fig. 15, 16. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 851, pi. 30, fig. 10. Richmond (Elkhorn) : Near Richmond, Indiana. Cotypes. Cat. No. 41767. U.S.N.M. HOMOTRTPELLA Ulrich. Genotype: Homotrypella instabilis Ulrich. Homotrypella Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1888, p. 83. Miller, N. A. Geol. Pal., 1889, p. 310. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 370, 412; Geol. Minnesota, 3, 1893, p. 228. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 586. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 29. Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904, p. 21. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 189; Zittel-Eastman Textb. Pal., 1913, p. 332. Peronoporella Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 81. (Genotype: P. dubia Cumings and Galloway.) Homotrypella contexta Ulrich. Homotrypella contexta Ulrich, Geol. Surv. Illinois, 8, 1890, p. 412, pi. 32, figs. 5-5b. Monticulipora contexta J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 74. Richmond (Fernvale): Wilmington, Illinois. Fragment of holotype Cat. No. 43763, U.S.N.M. Homotrypella dubia (Cumings and Galloway). Peronoporella dubia Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1913, p. 82, pis. 15, 16, 17. Maysville (Bellevue) and Richmond (Arnheim): Big Four Railroad, near Har- mon Station, Indiana. HOMOTRYPELLA GRACILIS Ulrich. See Bythopora gracilis. Homotrypella granulifera (Ulrich). Chsetetes granuliferus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 128, pi. 12, figs. 9-9b. Batostomella granulifera Ulrich, ibid., 5, 1882, p. 141. Homotrypella granulifera Miller, N. A. Geol. Pal., 1889, p. 310. 84243 Bull. 9215 41 642 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Homotrypella granullfera Continued. Monticulipora (Fistulipora) granulifera J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 120. Trenton (Wilmore): Burgin and Frankfort, Kentucky. Cotypes.C&t. Xo. 43669, U.S.N.M. Homotrypella liospltalis (Nicholson). Monticulipora (Prasopora) Selwynii var. hospitalis Nicholson, Genus Monticuli- pora, 1881, p. 209, fig. 45. Monticulipora hospitalis James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 26. Prasopora Selwynii var. hospitalis Nicholson in Steinmann, Neues Jahrb. f. Min., Geol. Pal., 1, 1882, pi. 4, fig. 11. Prasopora hospitalis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 237. Nickles and Bassler, Bull. U. S. Geol. Sun-., 173, 1900, p. 371. Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 57, pi. 3, fig. 10. Bassler, Proc. U. S. Nat. Mus., 30, p. 49, 1906, pi. 7, figs. 1-3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 871, pi. 23, figs. 1, Ib; pi. 31, fig. 6. Homotrypella hospitalis Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 194 (gen. ref.). Monticulipora (Heterotrypa) winchelli James, Paleontologist, No. 6, 1882, p. 48. Monticulipora winchelli James, Paleontologist, No. 7, 1883, pi. 1, fig. 5; Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 87. Richmond: A common species in Ohio, Indiana, Illinois, Kentucky, Ten- nessee, etc. Homotrypella hospitalis crassa (Ulrich). Atactoporella crassa Ulrich, Geol. Minnesota, 3, p. 225, pi. 10, figs. 18-21. Homotrypella hospitalis crassa Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 193- 195, figs. 104, 105. Trenton: St. Paul and Cannon Falls, Minnesota (Prosser); West Covington, Kentucky. Middle Ordovician (Wassalem): Uxnorm, near Reval, Esthonia, Russia. Holotype and plesiotype.C&t. Nos. 43501, 57279, U.S.N.M. Homotrypella instabills Ulrich. Homotrypella instabilis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 83; Geol. Minnesota, 3, 1893, p. 229, pi. 18, figs. 9-20. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 168, 169 (p. 586). Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 189-192, figs. 101, 102. Black River (Decorah): Minneapolis, St. Paul, Cannon Falls, etc., Minnesota. Middle Ordovician: Near Reval, Esthonia, Russia. Cotypes and plesiotypes. Cat. Nos. 43561, 57275, U.S.N.M. HOMOTRYPELLA MEEKI Ulrich. See Bythopora meeki. Homotrypella multiporata Ulrich. Homotrypella multiporata Ulrich, Geol. Minnesota, 3, 1893, p. 230, pi. 18, figs. 21, 22. Black River (Decorah): St. Paul and Minneapolis, Minnesota. Figured sections of holotype.C&t. No. 43559, U.S.N.M. Homotrypella inundula Ulrich. Homotrypella mundula Ulrich, Geol. Minnesota, 3, 1893, p. 232, fig. 12a-c. Trenton (Prosser): Decorah, Iowa; Cannon Falls, Minnesota. Holotype. Cat. No. 43560, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 643 Homotrypella nodosa Ulrich and Bassler. Homotrypella nodosa Hayes and Ulrich, U. S. Geol. Surv. Folio 95, 1903, ill. sheet, fig. 14, 15. Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 21, pi. 7, figs. 1-3. Maysville (Leipers): Columbia, Nashville, etc., Tennessee. Cotypes.C&t. No. 43178, U.S.N.M. Homotrypella norwoodl Nickles. Homotrypella norwoodi Nickles, Bull. Kentucky Geol. Surv., No. 5, 1905, p. 45, pi. 1, fig. 9-11. Trenton (Cynthiana?): Near Pleasant Valley, Nicholas County, Kentucky. Homotrypella? ovata Ulrich. Homotrypella? ovata Ulrich, Geol. Minnesota, 3, 1893, p. 231, pi. 18, figs. 23-30. Trenton (Prosser): Cannon Falls and Minneapolis, Minnesota. Cotypes.Csit. No. 43562, U.S.N.M. Homotrypella rustica Ulrich. Homotrypella rustica Ulrich, Geol. Minnesota, 3, 1893, p. 234, pi. 18, figs. 31-33. Monticulipora (Fistulipora) rustica J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 120. Homotrypella cf. rustica Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 851, pi. 19, figs. 5, 5a; pi. 21, fig. 4; pi. 30, fig. 11. Richmond (Maquoketa): Spring Valley, Minnesota. Figured sections of holotype. Cat. No. 43557, U.S.N.M. HOMOTRYPELLA? SUBGRACELIS Ulrich. See Bythopora subgracilis. HORISTOMA Fischer. See Poleumita Clarke and Ruedemann. HORMOCERAS GRACiLE Clarke and Ruedemann. See Actinoceras gracile. HORMOCERAS REMOTiSEPTUM Clarke and Ruedemann. See Actinoceras remoti- septum. HORMOCERAS TENUIFILUM Clarke and Ruedemann. See Actinoceras tenuifilum. HORMOTOMA Salter. Genotype: H. salteri Ulrich (=Murchisonia gracilis Salter not Hall). Murchisonia (part) of authors. Hormotoma (subgenus of Murchisonia) Salter, Geol. Surv. Canada, Can. Org. Re- mains, dec. 1, 1859, pp. 18, 22. OShlert (subgenus Murchisonia), Extr. Bull. Soc. d'Etud. Sci. d'Angers, 1877, p. 18. Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage-Bd., 1889, p. 368. Donald, Quart. Jour. Geol. Soc. London, 51, 1895, p. 211; ibid., 55, 1889, p. 257. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 959, 1012. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 950. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 648. Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 525. Hormotoma? aculeata (Billings). Loxonema aculeata Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 55. Anticostian (Gun River, Jupiter River): Near Chaloupe River, Anticosti. Hormotoma? agilis (Billings). Murchisonia agilis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 235. Hormotoma? agilis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). Canadian (Quebec -G, H): Cape Norman and Table Head, Newfoundland. 644 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hormotoma anna (Billings). Murchisonia Anna Billings, Canadian Nat. Geol., 4, 1859, p. 358, figs. 8a-e; Geol. Canada, Geol. Surv. Canada, 1863, p. 119, fig. 32a-f. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 424, figs. Hormotoma anna Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). Canadian: Mingan Islands, Canada. Hormotoma argylensls (Sardeson). Murchisonia argylensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 97, pi. 5, figs. 11, 12. Canadian (Shakopee): Near Argyle, Wisconsin; Shakopee and Cannon Falls, Minnesota. Hormotoma? artemesia (Billings). Murchisonia Artemesia Billings, Pal. Foss., 1, 1865, Geol. Surv. Canada, p. 345, text fig. 332a, b. Hormotoma? artemesia Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1013 (gen. ref.). Bassler, Bull. Virginia Geol. Surv., 29, 1909, pi. 20, figs. 1, 2. Canadian (Beekmantown): Counties of Leeds and Grenville, Canada; Virginia, etc. Hormotoma bellicincta (Hall). Murchisonia bellicincta Hall, Geol. Pal. New York, 1, 1847, p. 179, pi. 39, figs. la, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 162, pi. 5, figs, la, b, 12. Salter, Quart. Jour. Geol. Soc. London, 15, 1859, p. 380, pi. 13, fig. 11. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 183, fig. 177. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 314. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 18, fig. 7a. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 5, fig. 7. Walcott, Amer. Jour. Sci. Arts, 3d ser., 35, 1888, p. 237, fig. 2. Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage Bd., 1889, p. 371. Lesley, Geol. Surv. Pennsylvania, P 4, 1889, p. 426, figs. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 123 (loc. occ.). Hormotoma bellicincta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1017, pi. 70, figs. 15-17. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 650, fig. 887a. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, pi. 40, figs. 12, 12a. Trenton: Watertown, Middleville, Trenton Falls, etc., New York; County, Minnesota (Prosser). Plesiotypes.Ca,t. No. 45850, U.S.N.M. (Ulrich and Scofield). HORMOTOMA BOYLEI Donald. See Turritoma boylei. Hormotoma? cassina (Whitfield). Murchisonia cassina Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 179, pi. fig. 7. Seely, Vermont State Geol. Rep., 7, 1910, pi. 59, fig. 7. Canadian (Beekmantown): Fort Cassin, Vermont. Hormotoma confusa (Whitfield). Murchisonia? confusa Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 54, pi. figs. 16-18. Seely, Vermont State Geol. Rep., 7, 1910, pi. 60, figs. 6, 8. Canadian (Beekmantown): Shoreham, Vermont. Hormotoma fasciata Branson. Hormotoma faaciata Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 45, pi. 7, fig. 16. Black River (Auburn Decorah): Lincoln County, Missouri. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 646 Hormotoma funata (Billings). Murchisonia funata Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 55. Anticostian (Gun River, Jupiter River): The Jumpers, Anticosti. Hormotoma gigantea (Billings). Murchisonia gigantea Billings, Geol. Surv. Canada, Rep. Progress for 1853-1856, 1857, p. 298; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 55 (loc. ref.). Hormotoma gigantea Schuchert and Twenhofel, Bull. Geol. Soc. Amer., 21, 1910, p. 702. Gamachian (Ellis Bay): Prinsta Bay, Anticosti. Hormotoma gracilens (Whitfield). Murchisonia gracilens Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 53, pi. 8, figs. 14, 15. Hormotoma gracilens Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014, (gen. ref.). Canadian (Beekmantown) : Beekmantown, New York. Hormotoma gracilis (Hall). Murchisonia gracilis Hall, Pal. New York, 1, 1847, p. 181, pi. 39, figs. 4a-c; p. 303, pi. 83, figs, la, b. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 162, pi. 17, figs. 9-16; Man. Geol., 1860, p. 102, fig. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 1. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 18, 55. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 315. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 18, fig. 7c. Whitfield, Geol. Wisconsin, 4, 1882, p. 217, pi. 5, fig. 19. Chamberlin, Geol. Wisconsin, 1, 1883, p. 157, fig. Walcott, Amer. Jour. Sci. Arts, 3d ser., 35, 1888, p. 239, fig. 7. Miller, N. A. Geol. Pal., 1889, p. 411, fig. 687. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 428, figs. Whiteaves, Canadian Rec. Sci., 5, 1893, p. 320. Keyes, Missouri Geol. Surv., 5, 1894, p. 146. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 123. Murchisonia cf. gracilis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 75, pi. 3, fig. 4. Hormotoma gracilis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 192. Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70, figs. 18-21, ?22. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, pi. 40, figs. 13a-b. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 649, figs. 885a-d, 886a-d. Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 139, pi. 1, fig. 3. Trenton-Richmond: Watertown, Middleville, etc., New York (Trenton). Widely distributed in the United States and Canada. Plesiotypes.Czt. No. 45851, U.S.N.M. (Ulrich and Scofield). Hormotoma gracilis angustata (Hall). Murchisonia? angustata Hall, Pal. New York, 1, 1847, p. 41, pi. 10, figs. 2a, b. Hormotoma gracilis var. angustata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70, figs. 30-36. Bassler, Bull. Virginia Geol. Surv., 2A, 1909, pi. 23, fig. 4. Black River: Watertown, etc., New York; Canada; Virginia; Kentucky; Ten- nessee; Minnesota; Wisconsin; etc. Plesiotypes Cat. Nos. 45852-45856, U.S.N.M. Hormotoma gracilis goodhuensls Ulrich and Scofield. Hormotoma gracilis var. goodhuensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70, figs. 42^3. Black River (Decorah): Goodhue County, Minnesota. Cotypes.C&t. No. 45857, U.S.N.M. 646 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. Hormotoma gracilis multlTolvis Ulrich and Scofield. Honnotoma gracilis var. multivolvis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70, figs. 26-29. Richmond (Maquoketa): Spring Valley, Minnesota. Cotypes.C&t. No. 45858, U.S.N.M. Hormotoma gracilis sublaxa Ulrich and Scofield. Hormotoma gracilis var. sublaxa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70, figs. 23-25. Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri. Cotypes Cat. No. 45859, U.S.N.M. Hormotoma Infrequens (Billings). Murchisonia infrequens Billings, Canadian Nat. Geol., 4, 1859, p. 457. Hormotoma infrequens Raymond, Ann. Carnegie Mus., 4, 1908, p. 191, pi. 55, fig. 4. Chazyan (Aylmer): Grand Isle, near Cornwall, Canada. Hormotoma latlanpcularis Branson. Hormotoma latiangularis Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 44, pi. 7, figs. 11, 12. Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri. Hormotoma(?) major (Hall). Murchisonia major Hall, Geol. Lake Superior Land Dist., 2, 1851, p. 209, pi. 26, figs. la-c. Chamberlin, Geol. Wisconsin, 1, 1883, p. 167. Keyes, Missouri Geol. Surv., 5, 1894, p. 145, pi. 49, figs. 5a-b. Hormotoma? major Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1018, pi. 71, figs. 5-7. Grabau and Shimer, N. A. Index Fossils 1, 1909, p. 650, fig. 889. Murchisonia bellicincta Owen, Rep. Geol. Surv. Wisconsin, Iowa, and Minnesota, 1852, pi. 2, fig. 8. Trenton (Prosser and Stewartville) : Western shore of Green Bay, etc., Wisconsin; Stewartville, Hader, etc., Minnesota; Iowa; Pike County, Missouri. Plesiotype and plastotype.Gzt. Nos. 17903, 45860, U.S.N.M. Hormotoma melaniaformls (Shumard). Murchisonia melaniaformis Shumard, 1st and 2d Ann. Rep. Geol. Surv., Missouri, pt. 2, 1855, p. 208, pi. C, fig. 13. Keyes, Missouri Geol. Surv., 5, 1894, p. 145, pi. 49, fig. 3. Hormotoma? melaniaformis Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 262 (gen. ref.). Canadian: Franklin County, Missouri. Hormotoma multivolvis (Billings). Murchisonia multivolvis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6, 1857, p. 299; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 18 (loc. ref.). Richmond (English Head): Macasty Bay, Anticosti. Hormotoma obelisca (Whitfield). Murchisonia (Fusispira?) obelisca Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 317, pi. 26, figs. 5, 6. Murchisonia obelisca Seely, Vermont State Geol., Rep. 7, 1910, pi. 60, fig. 5. Canadian (Beekmantown): Fort Cassin, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 647 Hormotoma patriciaense Parks. Hormotoma patriciaense Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 36. Niagaran (Guelph): Severn River, Ontario. Hormotoma procris (Billings). Murchisonia Procris Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 34 (adv. sheets, 1862). Hormotoma procris Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). Black River (Leray): Pauquette Rapids, Ottawa River, Canada. HORMOTOMA RUQOSA Schuchert and Twenhofel. See Loxonema rugosa. Hormotoma salteri Ulrich. Hormotoma salteri Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016, pi. 70, figs. 44-51. Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 262, pi. 21, figs. 7-11. Weller, Geol. Surv. New Jersey Pal., 3, 1903, p. 183, pi. 12, fig. 29. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 649, figs. 887c-d. Trenton: Between Burgin and Danville, Kentucky (Flanagan); New Jersey. Cotypes. Cat. Nc. 45861, U.S.N.M. Hormotoma salteri canadensis Ulrich. Murchisonia (Hormotoma) gracilis Salter, Geol. Surv. Canada, Can. Org. Rem., Dec. 1, 1859, p. 22. Billings, Geol. Surv. Canada, Geol. Canada, 1863, p. 183, fig. 178. Hormotoma salteri var. canadensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016, pi. 70, fig. 44. Black River (Leray): Pauquettes Rapids, Ottawa River, Canada; near Lebanon, Tennessee. Hormotoma salteri nitida Ulrich. Hormotoma salteri var. nitida Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016. Trenton (Flanagan) : Between Burgin and Danville, Kentucky. Holotypes.Czt. No. 45862, U.S.N.M. Hormotoma salteri tennesseensis Ulrich. Hormotoma salteri var. tennesseensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016, pi. 70, fig. 49. Black River: Between Nashville and Lebanon, Tennessee. Cotypes. Cat. No. 45863, U.S.N.M. Hormotoma simulatrix (Billings). Murchisonia simulatrix Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 232, text fig. 218. Hormotoma simulatrix Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). Chazyan (Quebec, -H-M): Table Head and Point Rich, Newfoundland. Hormotoma subangulata Ulrich and Scofield. Hormotoma subangulata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1016, pi. 70, figs. 37-41. .Black River (Decorah) : Chatfield and near Cannon Falls, Minnesota. Cotypes. Cat. NOJ. 45864-45866, U.S.N.M. Hormotoma subcarlnata Grabau. Hormotoma subcarinata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 173, pi. 24, figs. 1-5. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 650. Upper Monroan: Wayne County, Michigan (Lucas); Amherstburg, Ontario ( Amherstburg) . 648 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hormotoma subulata (Conrad). Loxonema subulata Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 273, pi. 16, fig. 14. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 100. Murchisonia subulata Hall, Pal. New York, 2, 1852, p. 91, pi. 28, figs. 7a, b, c, d. Holopella? cf. Loxonema subulata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 291, pi. 5, fig. 21. Loxonema? (cf. Holopella) subulata Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 556, pi. 30, fig. 21. Early Silurian: Medina, Reynales Basin, and Wolcott, New York (Clinton); Todds Fork and Dayton, Ohio (Brassfield). Hormotoma tenera Savage. Hormotoma tenera Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 96, pi. 6, fig. 9. Upper Medinan (Edgewood): Near Edgewood and Louisiana, Missouri. Hormotoma terebriformis Foerste. Hormotoma terebriformis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 137, pi. 3, figs. 8a, b. Trenton (Upper): Near Rogers Gap, Kentucky. Hormotoma teretiformis (Billings). Murchisonia teretiformis Billings, Geol. Surv. Canada Rep. Progr. for 1853-1856, 1857, p. 298; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 18, 55. Murchisonia bellicincta var. teretiformis Whiteaves, Canadian Rec. Sci., 5, 1893, p. 320. Hormotoma teretiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). Richmond (Charleton): Charleton Point, Anticosti. Hormotoma trentonensis Ulrich and Scofield. Murchisonia bellicincta Hall (part), Pal. New York, 1, 1847, pi. 39, fig. le (not la-Id). Owen, Geol. Rep. Wisconsin, Iowa, Minnesota, 1852, pi. 2, fig. 8. Murchisonia major Whitfield (not Hall), Geol. Wisconsin, 4, 1882, p. 244, pi. 9, fig. 4. Hormotoma trentonensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1017, pi. 70, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 650, fig. 887b, 888. Trenton: New York, Canada, Minnesota, Illinois, Kentucky, Tennessee. Holotype.Ca,t. No. 45867, U.S.N.M. Hormotoma tricarinata Grabau. Hormotoma tricarinata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. I 1 / pi. 25, figs. 3-4. Upper Monroan (Lucas): Gibraltar quarry, Wayne County, Michigan. Hormotoma vesta (Billings). Murchisonia Vesta Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 276, 280; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 32, fig. 33 (adv. sheets, 1862). Lesley, Geof. Surv. Pennsylvania, Rep. P 4, 1889, p. 431, fig. Koken, Neues Jahrb. Min., Geol. Pal., 6, 1889, Beilage-Band, p. 375. Hormotoma vesta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). ' Canadian (Beekmantown): Phillipsburg, Quebec. Hormotoma whiteavesi Clarke and Ruedemann. Hormotoma whiteavesi Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 72, pi. 8, figs. 5, 9. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 332. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 649 Hormotoma whiteavesl Continued. Loxonema magnum Whiteaves (not Whitfield), Geol. Surv. Canada, Pal. Foss., 3, pt. 1, 1884, p. 17 (loc. occ.); Geol. Surv. Canada, Pal. Foss., 3, pt. 2, p. 87, pi. 13, fig. 2. Niagaran (Guelph): Gait, Heepeler, and Elora, Ontario; Shelby and Rochester New York. Hormotoma winnipegensis Whiteaves. Hormotoma Winnipegensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 192, pi. 21, fig. 1. Murchisonia winnipegensis Miller, N. A. Geol. Pal., 2d App., 1897, p. 768 (gen. ref.). Black River or Richmond: Lake Winnipeg, Canada. HORNERA? DICHOTOMA Hall. See Thamniscus dichotomus. HORTHOLUS AMERICANUS D'Orbigny. See Barrandeoceras americanum. HOUGHTONIA Rominger. See Calapcecia Billings. HUDSONASTER Stiirtz. Genotype: Palseasterina rugosa Billings. Palaeaster (part) of authors. Hudsonaster Stiirtz, Verh. naturh. Ver. preuss. Rheinl.,etc., 1899, p. 224. Schu- chert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 21; Bull. U. S. Nat. Mus., 88, 1915, p. 53. r Protopalseaster Hudson, Ottawa Nat., 26, 1912, p. 5; ibid., 27, 1913, pp. 77-84. Raymond, ibid., 1912, p. 105. (Genotype: P. narrawayi Hudson.) Hudsonaster incomptus (Meek). Palaeaster incomptus Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 275; Geol. Surv. Ohio, Pal., 1, 1873, p. 64, pi. 4, figs. 5a, b. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 577, figs. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 133. Palaeaster simplex Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 29, pi. 1, fig. 6. Miller, N. A. Geol. Pal., 1889, p. 266, fig. 380. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 132. Palaeaster clarkei Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 102, pi. 3, fig- 5. Palseasterclarkana Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 236. James, ibid., 18, 1895, p. 133. Hudsonaster incomptus Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 21; Bull. U. S. Nat. Mus., 88, 1915, p. 61, pi. 6, figs. 1, 2. Maysville and Richmond: Cincinnati, Ohio, and vicinity; Waynesville, Rays- ville, etc., Ohio. Hudsonaster ma tu tin us (Hall). Asterias matutina Hall, Pal. New York, 1, 1847, pp. 91, 318, pi. 29, figs. 5a, b. Ccelaster matutina D'Orbigny, Prodr. de Pal., 1, 1849, p. 22 (gen. ref.). Palseaster matutina Hall, 20th Rep. New York State Cab. Hist., p. 283, rev. ed., 1868 (1870), p. 325, pi. 9, fig. 2. Hudsonaster matutinus Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 21; Bull. U. S. Nat. Mus., 88, 1915, p. 57, pi. 2, fig. 2; pi. 3, fig. 2; pi. 5, figs. 1, 2. Petraster rigidus (part) Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3, 1858, pi. 10, fig. 3b (not fig. 3a). Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 294; rev. ed., 1870, p. 337. Trenton: Trenton Falls, etc., New York; Lachine, Quebec; Government House Bay, Ontario. 650 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hudsonaster miller! Schuchert. Hudsonaster milleri Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 22; Bull. U. S. Nat. Mus., 88, 1915, p. 60, pi. 4, fig. 2. Trenton (Wilmore): Fayette County, Kentucky. Hudsonaster narrawayi (Hudson). Protopalseaster narrawayi Hudson, Ottawa Nat., 26, 1912, p. 25, pi. 1-3; Bull. New York State Mus., 164, 1913, p. 130, pi. 5. Raymond, Ottawa Nat., 26, 1912, p. 105, figs. 2-4. Hudson, Ottawa Nat., 27, 1913, pp. 77-84, 2 pis. Hudsonaster narrawayi Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 22; Bull. U. S. Nat, Mus., 88, 1915, p. 59, pi. 1, fig. 1; pi. 2, fig. 1; pi. 4, fig.l. Black River: City View Postoflfce, Ottawa, Ontario; St. Paul, Minnesota Stones River (Lebanon): Shelbyville, Tennessee. Hudsonaster rugosus ^Billings). Palaeasterina rugosa Billings, Geol. Surv. Canada, Rep. Progress for 1853-56, 1857, p. 291; Geol. Surv. Canada, Can. Org. Rem., 3, 1858, p. 77, p. 19. Chap- man, Canadian Jour., n. s., 6, 1861, p. 517. Wright, Mon. British Foss. Echin., Oolitic, 2, pt. 1, 1862 (Pal. Soc. for 1861), p. 27. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 9. Hudsonaster rugosa Stiirtz, Verh. naturh. Ver. preuss. Rheinl., 56, etc., 1899, p. 225. Schuchert, Bull. U. S. Nat. Mus., 88, 1915, p. 64, pi. 3, fig. 1. Richmond (Charleton) : Charleton Point, Anticosti. HUGHMILLERIA Sarle. Genotype: H. socialis Sarle. HughmilleriaSarle, Bull. New York State Mus., Pal., 69, 9, 1903, p. 1087. Clarke, Bull. New York State Mus., 107, 1907, p. 307. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 412. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 329. Clarke, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 785. Hughmilleria magna Clarke and Ruedemann. Hughmilleria magna Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 341, pi. 85, figs. 11-19. Trenton (Schenectady): Schenectady, Duanesburg, and Rotterdam Junction, Schoharie County, New York. Hughmilleria shawangunk Clarke. Hughmilleria shawangunk Clarke, Bull. New York State Mus., 107, 1907, p. 308, pi. 4, figs. 1-4; pi. 5, figs. 1-6, 8, 9. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 413, fig. 1714. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 342, pis. 64-66; pi. 69, fig. 1. Medinan (Shawangunk) : Otisville, New York; Delaware Water Gap, Pennsyl- vania. Hughmilleria socialis Sarle. Hughmilleria socialis Sarle, Bull. New York State Mus., 69, 1903, p. 1091, pis. 6-9, 10, figs. 1-6, 8, 9; 11-14; 15, figs. 4-6; 24, fig. 1; 25, figs. 1, ?, 4; 26, figs. 3, 5. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 413, fig. 1714. Clarke and Ruedeman, Mem. New York State Mus., 14, 1912, p. 335, pis. 59-63 (p. 428, fig. 118, Hughmilleria pittsfordensis in error). Cayugan (Pittsford): Pittaford, New York. Hughmilleria socialis robusta Sarle. Hughmilleria socialis var. robusta Sarle, Bull. New York State Mus., 69, 1903, p. 1097, pi. 21, figs. 1, 2. Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 340, pi. 63, fig. 16. Cayugan (Pittsford): Pittsford, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 651 HUNGAIA Walcott. Genotype: Dikelocephalus magnificus Billings. Hungaia Walcott, Smiths. Misc. Coll., 57, 1914, p. 351. Hungaia magnifies (Billings). Dikelocephalus magnificus Billings, Canadian Nat. Geol., 5, 1860, p. 307, fig. 5; Geol. Canada, Geol. Surv. Canada, 1863, p. 235, figs. 255a, b; Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 299, fig. 376. Remopleurides magnificus Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 294 (gen. ref.). Dicellocephalus magnificus Matthew, Trans. Roy. Soc. Canada, 10, sec. 4, 1893, p. 11, footnote. Freeh, Leth. Geog., Leth. Pal., 2, 1897, Bd., pi. lb, figs. 18a, b. Apatokephalus magnificus Brogger, Nyt Mag. f. Naturvid., 36, 1897, p. 175, fig. 10, p. 184. Ozarkian? (Levis erratic): Point Levis, Quebec. HURONIA Stokes. Genotype: H. bigsbyi Stokes. Huronia Stokes, Trans. Geol. Soc. London, 2d eer., 1, 1824, Expl. pi. 28; Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 710. Woodward, Man. Mollusca, pt. 2, 1851, p. 88, fig. 49. Saemann, Palseontographica, 3, 1852, pp. 156, 161. Barrande, Neues Jahrb. f. Min., etc., 1855, p. 407. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 326. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 784; Cephalopodes, Ext. Syst. Sil. du Centre Boheme, 1877, p. 104. Zittel, Handb. Pal., 2, 1884, p. 369. Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 273. Miller, N. A. Geol. Pal., 1889, p. 442. Foord, Cat. Fose. British Mus., 1, 1888, p. 199. HURONIA ANNULATA Hall. See Huronia bigsbyi. Huronia bigsbyi Stokes. Huronia Bigsbyi Stokes, Trans. Geol. Soc. London, 2d. ser., 1, 1824, Expl. pi. 28, fi g> 1. Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 743, pi. 436, figs. 1-3; Supp., 1877, pi. 474, figs. 2-4. Huronia annulata Hall, Geol. Lake Sup. Land District, Foster and Whitney's Rep., 1851, p. 221, pi. 34, fig. 4. Niagaran : Drummond Island, Lake Huron. Huronia distincta Barrande. J Huronia sp. Stokes, Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 710, pi. 40, fig. 2. Huronia distincta Barrande, Syst. Sil. du Centre Boheme, 11, pt. 3, 1874, p. 745, pi. 231, fig. 2. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 207. Niagaran: Drummond Island, Lake Huron. Huronia minuens Barrande. Huronia minuens Barrande, Syst. Sil. du Centre Boheme, 11, pt. 3, 1874, p. 744, pi. 435, fig. 4. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 204. Niagaran: Drummond Island, Lake Huron. Huronia obliqua Stokes. Huronia sp. Stokes, Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840, p. 710, pi. 40, fig. 3. Huronia obliqua Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, pi. 28, fig. 4. Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 32, pi. 9, fig. 1. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 205. Orthoceras (Huronia) sp. Barrande, Syst. Sil. Boheme, 2, 3, 1874, p. 743, pi. 231, fig. 3. Niagaran: Drummond Island, Lake Huron. 652 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Huronla persiphonata (Billings). Orthoceraa persiphonatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 329; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 57 (loc. ref.). Huronia persiphonata Foord. Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 204. Anticostian (Gun River, Jupiter River): Cormorant Point, Anticosti. Huronia portlocki Stokes. Huronia Portlockii Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 710, pi. 40, fig. 5. Foord, Cat. Foss. Ceph. British Mus., 2, 1891, p. 383. Ami, Canadian Rec. Sci., 4, 1891, p. 399. Orthoceras (Huronia) Portlocki Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1^74, p. 741, pi. 232, fig. 4. Niagaran: Drummond Island, Lake Huron. HURONIA ROMINGERI Barrande. See Huronia turbinata. HURONIA SPH^EROIDALIS Stokes. See Actinoceras sphaeroidale. Huronia turbinata Stokes. Huronia turbinata Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, Expl. pi. 28, fig. 3. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 206. Huronia romingeri Barrande, Syst. Sil. Boheme, 2, 3, 1874, p. 758; Suppl. 1877, pi. 474, figs. 5, 6. Niagaran: Drummond Island, Lake Huron; Point Detour, Michigan. Huronia vertebralis Stokes. Huronia vertebralis Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, Expl. pi. 28, figs. 2, 6. Woodward, Man. Mollusca, pt. 1, 1851, p. 89, fig. 49, footnote; 3d ed., 1875, p. 192, fig. 56. Hall, Geol. Lake Sup. Land Dist., Foster and Whitney's Rep., 1851, p. 221, pi. 24, fig. 1. Barrande, Syst. Sil. du Centre Boheme, 2, 1874, pt. 3, p. 746, pi. 231, figs. 6, 7, pi. 436, figs. 5-7. Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 16, fig. 3. Zittel, Handb. Pal., 2, 1884, p. 369, fig. 508. Foord, Cat, Foss. Ceph. Brit. Mus., 1, 1888, p. 202. Miller, N. A. Geol. Pal., 1889, p. 442, text fig. 744. Orthoceras canadense Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, pp. 321-328; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 57. Niagaran: Drummond Island, Lake Huron. Anticostian (Chicotte): Southwest Point, Anticosti. HYALOSTELIA Zittel. Genotype: Hyalonema smithi Young. Hyalostelia Zittel, Handb. Pal., 1, 1879, p. 185. Hinde, Mon. British Foss. Sponges, Pal. Soc., 1888, p. 109. Koken, Die Leitfossilien, Leipzig, 1896, p. 342. Zittel-Eastman Textb. Pal., 1, 1900, p. 55; ibid., 2d ed., 1913, p. 62. Hyalostelia? metissica Dawson. Hyalostelia Metissica Dawson, Canadian Rec. Sci., 3, 1888, p. 54. Hinde, Cana- dian Rec. Sci., 3, 1888, p. 68. Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 49, fig. 20. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 108, fig. 17, pi. 3, fig. 10. Pyritonema metissicum Rauff, Palaeontographica, 40, 1894, p. 261. Canadian? (Levis?): Little Metis, Quebec. HYALOSTELIA SOLIVAGA Ulrich. See Hindia sphseroidalis. HYATTELLA Hall and Clarke. See Hyattidina Schuchert. HYATTELLA JUNIA Hall and Clarke. See Hyattidina congesta junia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 653 HTATTIDINA Schuchert. Genotype: Atrypa congesta Conrad. Hyattella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 61, fig. 45; 13th Ann. Rep. New York State Geol., 1895, p. 767. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 338. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 348. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 204; Bull. New York State Mus., 45, 1901, p. 204. Hyattidina (Hyattella preoccupied) Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 415. Hyattidina charletona Twenhofel. Hyattidina charletona Twenhofel, Bull. Victoria Mem. Mus., 3, 1914, p. 34, pi. 1, figs. 6, 7. Richmond (Charleton): Charleton Point, Anticosti. Hyattidina congesta (Conrad). Atrypa congesta Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 265, pi. 16, fig. 18. Hall, Geol. New York, Rep. 4th Dist., 1843, p. 71, fig. 2; Pal. New York, 2, 1852, p. 67, pi. 23, fig. 1. Billings, Canadian Nat. Geol., 1, 1856, p. 136, pi. 2, fig. 4. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 823, fig. 632. Atrypa quadricostata Hall, Pal. New York, 2, 1852, p. 68, pi. 23, fig. 2. Triplesia? congesta Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 77. Triplesia? quadricostata Hall, ibid., 1859, p. 78. Rhynchonella quadricostata Miller, N. A. Geol. Pal., 1889, p. 369. Camerella congesta Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 48. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 112, figs. Hyattella congesta Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 61, fig. 45; pi. 40, figs. 23-28; pi. 81, figs. 26-28. Grabau, Bull. New York State Mus., 45, 1901, pp. 204, 205, figs. 131, 131a; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 204, figs. 131, 131a. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 348, figs. 451-452. Clinton (Lower): Rochester, Reynales Basin, etc., New York; Ontario. Anticostian (Gun River): Island of Anticosti. Plesiotypes.Cat. No. 51340, U.S.N.M. (Nettelroth). Hyattidina congesta junia (Billings). Athyris junia Billings, Catalogue Sil. Foss. Anticosti, 1866, p. 46. Hyattella junia Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 62, pi. 40, figs. 29-31. Anticostian (Gun River): Six miles east of Otter River, Jupiter River, and the Jumpers, Anticosti. Hyattidina? lamellosa (We Her). Hyattella? lamellosa Weller, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p. 258, pi. 23, figs. 15-18. Helderbergian (Rondout): Two miles south of Tristates, New York. HYBOCRINUS Billings. Genotype: H. conicus Billings. Hybocrinus Billings, Geol. Surv. Canada, Rep. Progr., 1853-56, 1857, p. 274; Geol. Surv. Canada, dec. 4, 1859, p. 23. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 8th ser., 21, 1874, p. 5. Zittel, Handb. Pal., 1, 1879, p. 350. Wachsmuth and Springer, Proe. Acad. Nat. Sci. Philadelphia, 1879, pp. 285, 297, 373 (Rev. Pal., 1, p. 74, 150); ibid., 1886, pp. 110, 119, 122; ibid., 1890, pp. 355, 390, 393, pi. 10, fig. 7. Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 152. Carpenter, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 298, 654 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. HYBOCRINUS Continued. 305. Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 26, 1883, p. 365. Miller, N. A. Geol. Pal., 1889, p. 255. Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 3; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 21; Geol. Mag., dec. 4, 6, 1889, p. 33, fig. 6; Treatise on Zool., pt. 3, Echinc- derma, London, 1900, p. 145, fig. 57, 3. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 151. Zittel, Grundzuge Pal., 1910, p. 151. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 500. Springer, Mem. Geol. Surv. Canada, 15P, 1911, pp. 13-23; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 211. HYBOCRINUS (ANOMALOCRINUS) Meek and Worthen. See Anomalocrinus Meek. Hybocrinus conlcus Billings. Hybocrinus conicus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 274; Geol. Surv. Canada, dec. 4, 1859, p. 29, pi. 2, figs. 2a, b. Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153. Miller, N. A. Geol. Pal., 1889, p. 255, fig. 341. Springer, Mem. Geol. Surv. Canada, 15P, 1911, pi. 4, fig. 6. Trenton (Curdsville) : Ottawa, Ontario; Mercer County, Kentucky. HYBOCRINUS? (ANOMALOCRINUS) INCURVUS Meek and Worthen. See Anomalocrinus incurvus. Hybocrinus pristinus Billings. Hybocrinus pristinus Billings, Geol. Surv. Canada, dec. 3, 1858, p. 25, figs. 4, 5; dec. 4, 1859, p. 23, pi. 1, fig. 2a. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 501. Chazyan (Aylmer): Caughnawaga, and Islands of Montreal, Jesus, and Bizard, Canada. Hybocrinus tumtdus Billings. Hybocrinus tumidus Billings, Geol. Surv. Canada, Rep. Progr. 1853-56, 1857, p. 275; Geol. Surv. Canada, dec. 4, 1859, p. 28, pi. 2, figs, la-le . Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153, pi. 5, figs. 2a-c. Carpenter, Quart. Jour. eol. Soc. London, 38, 1882, p. 298, fig. A; pi. 11, figs. 3-5. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 501, fig. 1812. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 18, pi. 5, figs. 1-5. Trenton (Curdsville): Ottawa, Ontario; Woodford and Mercer Counties, Kentucky. HYBOCYSTIS Bather. See Hybocystites Wetherby. HTBOCYSTITES Wetherby. Genotype: H. problematicus Wetherby. Hybocystites Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 150. Car- penter, Quart. Jour. Geol. Soc. London, 38, 1882, p. 308. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 360, 373 (Rev. Pal., pp. 186, 199.) Miller, N. A. Geol. Pal., 1889, p. 256. Zittel, Grundzuge Pal., 1910, p. 151. Hybocystis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 145. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 152. Springer, Mem. Geol. Surv. Canada, 15P, 1911, pp. 13-25; Zittel-Eastman Textb. Pal., 1, 1913, p. 211. Hybocystites eldonensis (Parks). Hybocystis eldonensis Parks, Ottawa Nat., 21, 1908, p. 234, pi. 2, fig. 4. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 13, pi. 2, figs. 1-10. Trenton (Curdsville): Eldon township, Victoria County (near Kirkfield), Ontario. Observation. Probably the same as H. problematicus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 655 Hybocystltes problematicus Wetherby. Hybocystites problematicus Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 150, pi. 5, figs, la-c. Carpenter, Quart. Jour. Geol. Soc. London, 38, 1882, p. 307, pi. 11, figs. 6-24. Miller, N. A. Geol. Pal., 1889, p. 256, fig. 342. Hybocystis problematicus Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 95, fig. 1. Parks, The Ottawa Nat., 21, 1908, p. 232, pi. 2, figs. 1-3, 5. Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 21 (under H. eldonensis); pi. 2, figs. 11, 12. Trenton (Curdsville) : Mercer and Woodford Counties, Kentucky; Kirkfield, Ontario. HYDROI^ENUS CONIFRONS Salter. See Illaenus conifrons. HYOLITHELLUS Billings. Genotype: Hyolithes micans Billings. Hyolithellus Billings, Canadian Nat. Geol., n. s., 6, 1871, p. 240; Amer. Jour. Sci., 3d ser., 3, 1872, p. 360. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 141. Miller, N. A. Geol. Pal., 1889, p. 391. Matthew, Trans. Roy. Soc. Canada, 2d ser., 5, sec. 4, 1899, p. 107. Hyolithellus paplllatus Walcott. Hyolithellus papillatus Walcott, Smiths. Misc. Coll., 57, 1912, p. 267, pi. 43, figs. 3,4. Upper Cambrian or Ozarkian (Potsdam) : Marble River, near Chateaugay, Frank- lin County, New York. Holotype.Csit. No. 58553, U.S.N.M. HYOLITHES Eichwald. Genotype: H. acutus Eichwald. Hyolithes Eichwald, Sil. Sch. Syst., Ehstland, 1840, p. 97. Barrande, Syst. Sil. du Centre Boheme, 3, 1867, p. 55. Billings, Canadian Nat., n. s., 6, 1871, p. 213. Ford, Amer. Jour. Sci., 3d ser., 1, 1871, p. 472; 3, 1872, p. 352. Kayser, Beitr. Geol. Pal. Argent. Repub., Pal. Suppl., 3, 1876, p. 8. Hall, Pal. New York, 5, pt. 2, 1879, p. 191. Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, p. 175. Zittel, Handb. Pal., 2, 1882, p. 316. Koninck, Ann. d. Mus. Roy. d'Hist. Nat. de Belgique, 8, 1883, p. 223. Matthew, Trans. Roy. Soc. Canada, 3, sec. 4, 1886, p. 45. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 131. Remele, Zeits. d. d. geol. Gesell., 41, 1889, p. 762. Miller, N. A. Geol. Pal., 1889, p. 391. Matthew, Canadian Rec. Sci., 5, 1893, pp. 435-436, 437. Holm, Sveriges Geol. Unders., ser. C, No. 112, 1893, p. 6, 9, 13, 45, 151. Matthew, Canadian Rec. Sci., 5, 1893, p. 433. Koken, Die Leitfossilien, Leipzig, 1896, p. 98, fig. 77; p. 400. Mat- thew, Trans. Roy. Soc. Canada, 2d ser., 7, sec. 4, 1901, p. 93. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 950. Hyolithes baconl Whitfield. Hyolithes Baconi Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878, p. 77; Geol. Wisconsin, 4, 1882, p. 225, pi. 6, figs. 9-11. Chamberlin, Geol. Wisconsin, 1, 1883, p. 158, fig. Black River (Platteville): Beloit, etc., Wisconsin; Minnesota. Hyolithes cllftonensis Foerste. Hyolithes cliftonensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 62, pi. 3, figs. 38a, b. Clinton (Osgood): Clifton, Tennessee. Hyollthes(?) dublus Miller and Faber. Hyolithes(?) dubius Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 155, pi. 8, fig. 23. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 964, pi. 42, fig. 3. Richmond: Versailles, Indiana. 656 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Hyolithes gibbosus Hall and Whitfield. Hyolithes gibbosus Hall and Whitfield, 23d Ann. Rep. New York State Cab. Nat. Hist., 1873, p. 242, pi. 11, figs. 1-3. Walcott, Smiths. Misc. Coll., 57, 1912, p. 265, pi. 43, figs. 5, 6. Upper Cambrian or Ozarkian (Potsdam sandstone) : Ausable Chasm, Essex County, New York. Hyolithes newsomensls Foerste. Hyolithes newsomensisFoerste, Jour. Geol., 11, 1903, p. 707; Bull. Sci. Lab. Deni- son Univ., 14, 1909, p. 63, pi. 1, figs. 3A, B. Niagaran (Waldron): Newsom, Swallow Bluff, and Iron City, Tennessee. Hyolithes parviusculus (Hall). Theca parviuscula Hall, Geol. Wisconsin, 1862, p. 55, fig. 10. Hyolithes parviusculus James, Amer. Geol., 5, 1890, p. 355. Richmond (Maquoketa): Wisconsin, Illinois, Iowa, and Missouri. Hyolithes pinniformis Ruedemann. Hyolithes pinniformis Ruedemann, Bull. New York State Mus., 162, 1912, p. Ill, pi. 7, figs. 12, 13. Trenton (Canajoharie): Canajoharie, New York. Hyolithes rhine Ruedemann. Hyolithes rhine Ruedemann, Bull. New York State Mus., 49, 1901, p. 36, pi. 2, figs. 12-15. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Hyolithes subimbricatus Ringueberg. Hyolithes subimbricatus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 135, pi. 7, fig. 7. Clinton (Rochester): Lockport, New York. Hyolithes vanuxemi Walcott. Hyolithes Vanuxemi Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 85, pi. 11, figs. 16, 16a, b. Lower Pogonip: Northeast of Adams Hill, Eureka District, Nevada. Cotypes. Cat. No. 17375, U.S.N.M. Hyolithes versaillesensis Miller and Faber. Hyolithes versaillesensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 155, pi. 8, figs. 20-22. Miller, N. A. Geol. Pal., 2d App., 1897, p. 765, fig. 1409. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 965, pi. 42, figs. 4, 4a. Richmond: Versailles, Indiana. HYPANTHOCRINITES Phillips. See Eucalyptocrinus Goldfuss. HYPANTHOCRINITES DECORUS Hall. See Eucalyptocrinus cselatus laevis. HYPANTHOCRINUS Hall. See Eucalyptocrinus Goldfuss. HYPANTHOCRINUS DECORUS Hall. See Eucalyptocrinus cselatus levis. HYPSELOCONUS Berkey. Genotype: Metoptoma recurva Whitfield. Hypseloconus Berkley, Amer. Geol., 21, 1898, p. 282. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 604. Hypseloconus recurvus (Whitfield). Metoptoma recurva Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878, p. 61; Geol. Wisconsin, 4, 1882, p, 196, pi. 3, figs. 14, 15. Chamberlin, Geol. Wisconsin, 1, 1883, p. 142, fig, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 657 Hypseloconus recurvus Continued. Hypseloconus recurvus Berkey, Amer. Geol., 21, 1898, p. 284, pi. 19, figs. 3-8, 13-16, 27-31; pi. 21, figs. 8, 12, 13, 14, 16, 20. Sardeson, Jour. Geol., 11, 1903, p. 479, fig. 6. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 604, fig. 804a, b. Ozarkian (Mendota): East of Baraboo, Wisconsin. HYPTIOCRINUS Wachsmuth and Springer. See Cyphocrinus Miller. HYPTIOCRINUS TYPUS Wachsmuth and Springer. See Cyphocrinus gorbyi. HYSTEICURUS Raymond. Genotype: Bathyurus conicus Billings. Hystricurus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 60; Zittel- Eastman Textb. Pal., 1913, p. 716. Hystricurus conicus (Billings). Bathyurus conicus Billings, Canadian Nat. Geol., 4, 1859, p. 266, fig. 12d; Geol. Canada, Geol. Surv. Canada, 1863, p. 122, fig. 42; Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 353, fig. 341. Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 61, pi. 13, figs. 15-21. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 288. Seely, Vermont State Geol. Rep., 7, 1910, pi. 57, figs. 4, 5. Hystricurus conicus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 60, pi. 7, fig. 9. Canadian (Beekmantown): St. Timothy, on Beauharnois Canal, Canada; Corn- stock Landing, New York; Fort Cassin, Vermont; Cow Head, Newfound- land (Quebec-P). Hystricurus cordai (Billings). Bathyurus Cordai Billings, Canadian Nat. Geol., 5, 1860, p. 321, fig. 26; ibid., 6, 1861, p. 314; Geol. Canada, Geol. Surv. Canada, 1863, p. 238, fig. 269; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 259, fig. 242; p. 412, fig. 395. Bathyurus seelyi Whitfield, Bull. Amer. Mus. Nat. Hist., 11, 1889, p. 62, pi. 13, figs. 8-14. Seely, Vermont State Geol., Rep. 7, 1910, pi. 57, figs. 6, 7. Hystricurus cordai Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61. Canadian: Point Levis, Quebec (Levis conglomerates); Phillipsburg, Quebec (Beekmantown); Cow Head and Bay St. John, Newfoundland. Hystricurus crotalifrons (D wight). Bathyurus(?) crotalifrons D wight, Amer. Jour. Sci., 3d ser., 27, 1884, p. 253, pi. 7, figs. 4, 4a, 5, 6. Hystricurus crotalifrons Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61. Canadian (Beekmantown) : Rochdale, Dutchess County, New York. Hystricurus? tuberculatus (Walcott). Bathyurus? tuberculatus Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 91, pi. 12, fig. 9. Upper Pogonip: Ridge southwest of Wood Cove, Eureka District, Nevada. Cotype. Cat. No. 24654, U.S.N.M. ICHNOPHYCUS Hall. Genotype: I. tridactylus Hall. Ichnophycus Hall, Pal. New York, 2, 1852, p. 26. Miller, N. A. Geol. Pal., 1889, p. 120. Ichnophycus tridactylus Hall. Ichnophycus tridactylus Hall, Pal. New York, 2, 1852, p. 26, pi. 10, fig. 7a, b. Miller, N. A. Geol. Pal., 1889, p. 120, fig. 41. Clinton: New Hartford, New York. 84243 Bull. 9215 42 658 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ICHTHYOCEINUS Conrad. Genotype: I. leevis Conrad. Ichthyocrinus Conrad, Jour. Acad. Nat. Sci. Philadelphia, 1842, 8, p. 279. D'Orbigny, Prodr. de Pal., 1, 1849, p. 46. Hall, Pal. New York, 2, 1852, pp. 195-355. McCoy, British Pal. Rocks FOBS., 1854, p. 54. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 319. Hall, Rep. Geol. Surv. Iowa, 1, 1858, pt. 2, p. 557. Beyrich, Ann. Mag. Nat. Hist., 4th ser., 7, 1871, p. 403. Salter, Cat. Camb. and Sil. FOBS., 1873, p. 126. Angelin, Icon. Crinoid., 1878, p. 13. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 252; ibid., 1886, p. 67; ibid., 1888, p. 353; ibid., 1890, p. 387. Zittel, Handb. Pal., 1, 1879, p. 355. Miller, N. A. Geol. Pal., 1889, p. 256. Bather, Nat. Sci., 12, 1898, p. 341. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 145, fig. 53. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 188, fig. 108. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 163. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 159; Bull. New York State Mus., 45, 1901, p. 159. Springer, Jour. Geol., 14, 1906, p. 516. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 563. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 204. Ichthyocrinus? clintonensis Hall. Ichthyocrinus? clintonensis Hall, Pal. New York, 2, 1852, p. 181, pi. A40, fig. 5. Lower Clinton: Reynales Basin, Niagara County, New York. Ichthyocrinus conoideus Ringueberg. Ichthyocrinus conoideus Ringueberg, Ann. New York Acad. Sci., 5, 1890, p. 305, pi. 3, fig. 5. Springer, Mon. Crin. Flex. , Smith. Inst. (in press). Niagaran (Lockport-Gasport member): Lockport, New York. Ichthyocrinus corbis Winchell and Marcy. Ichthyocrinus corbis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 89, fig. Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 175, pi. 4, fig. 5; N. A. Geol. Pal., 1889, p. 256, fig. 343. Niagaran (Racine): Chicago and Cicero, Illinois. Ichthyocrinus Iffivis Conrad. Ichthyocrinus Isevis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 27i pi. 15, fig. 16. Hall, Pal. New York, 2, 1852, p. 195, pi. 43, figs. 2a-j Billings, Canadian Nat. Geol., 1, 1856, p. 59, pi. fig. 4. Pictet, Traite de 2d ed., 4, 1857, p. 319, pi. 100, fig. 17. Emmons, Man. Geol., 1860, p. 110, fig. 100. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. fig. 3. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, p. 258. Miller, N. A. Geol. Pal., 1889, p. 256, fig. 344. Grabau, Bull. Buffs Soc. Nat. Sci., 7, 1901, p. 159, fig. 54; Bull. New York State Mus., 45, 1901, p. 159, fig. 54. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 564, fig. 1900. Cyathocrinites pyriformis Hall, Nat. Hist. New York Geol., 4, 1843, p. 11, fig. p. 112, tab. ill. 17, fig. 3. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 314, fi: Cyathocrinus pyriformis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. figs. Lecanocrinus simplex Hall, Pal. New York, 2, 1852, p. 202, pi. 46, figs. 2a-e. Ichthyocrinus simplex Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879 (Rev. Pal., 1, 1879, p. 35). Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario. ICHTHYOCRINUS SIMPLEX Wachsmuth and Springer. See Ichthyocrinus laevis. Ichthyocrinus subangularis Hall. Ichthyocrinus subangularis Hall, Trans. Albany Inst., 4, 1863, p. 201 (abstract, p. 7); 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), p. 325, pi. AJ . V , JEfelo BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 659 Ichthyocrinus subaugularis Continued. 11 (2), figs. 15, 16; p. 385, fig. 11; p. 391; rev. ed., 1870, p. 367, pi. 11, figs. 15, 16; p. 429, text fig; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 16, figs. 11-13; mus. ed., 1879, p. 137, pi. 16, figs. 11-13; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 268, pi. 15, figs. 12, 13; pi. 16, figs. 11-13. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, p. 146, pi. 15, figs. 3-5. Springer, Jour. Geol., 14, 1906, p. 477, pi. 6, fig. 2; Mon. Crin. Flex., Smith. Inst. (in press). Niagaran: Waldron, Indiana (Waldron); Bridgeport and Romeo, Illinois (Racine). IDIOCRINUS Wachsmuth and Springer. See Gazacrinus Miller. IDIOCRINUS ELONGATUS Wachsmuth and Springer. See Gazacrinus inornatus. IDIOCRINUS TENNESSEENSIS Wachsmuth and Springer. See Ormocrinus tennesseensia. IDIOSTROMA Winchell. Genotype: I. csespitosum Winchell. Idiostroma Winchell, Proc. Amer. Assoc. Adv. Sci., 15, 1867, p. 99. Nicholson, Mon. British Strom., Pal. Soc., 1886, pp. 10, 11, 99. Idiostroma nattressi Grabau. Idiostroma nattressi Grabau, Michigan Geol. Surv., Geol., 1st ser., 1909, p. 94, pi. 9, figs. 5-7; pi. 8, figs. 2, 3. Upper Monroan (Anderdon and Amherstburg) : Near Amherstburg, Ontario. IDIOTRTPA Ulrich. Genotype: Idiotrypa parasitica Ulrich. Idiotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 272. Miller, N. A. Geol. Pal., 1889, p. 310. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 375. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 591. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 34. Bassler, ibid., 292, 1906, p. 39. IDIOTRYPA PARASITICA Ulrich. See Idiotrypa punctata. Idiotrypa punctata (Hall). Trematopora?? punctata Hall, Pal. New York, 2, 1852, p. 151, pi. 40A, figs. 4a-c. Idiotrypa punctata Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 40, pi. 17, figs. 4-10; pi. 24, figs. 17-19. Idiotrypa parasitica Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 273, pi. 13, figs. 1-lc. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 187-189 (p. 591). Clinton: Rochester, Lockport, etc., New York (Rochester); Osgood, Indiana Plesiotypes Cat. Nos. 35496, 43674, U.S.N.M. (Holotype of I. parasitica). ILIONIA Billings. Genotype: I. canadensis Billings. Ilionia Billings, Canadian Nat., n. s., 7, 1874, p. 301. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 13. Miller, N. A. Geol. Pal., 1889, p. 483. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 379. Ilionia canadensis Billings. Ilionia Canadensis Billings, Canadian Nat., n. s., 7, 1874, p. 301, fig. 1, 2. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 13, fig. 3; p. 14, fig. 4; ibid., pt. 2, 1905, p. 67. Silurian: Port Daniel, Bay of Chaleurs, Quebec; Elora and Hespeler, Ontario (Guelph). 660 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Illonia? cos tula t a Whiteavee. Ilionia(?) costulata Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 15, pi. 2, fig. 5; ibid., pt. 2, 1895, p. 68 (loc. occ.). Niagaran (Guelph): Elora and Durham, Ontario. ILIONIA GALTENSIS Whiteaves. See Prolucina galtensis. Ilionia? parvula Whiteaves. Ilionia(?) parvula Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 288, pi. 28, figs. 6-8. Niagaran: Ami Island near northeast shore of Lake Winnipegosis, Manitoba. Ilionia sinuata (Hall). Anatina? sinuata Hall, Pal. New York, 3, 1859, p. 265, pi. 49, figs. 3a-3d. Ilionia sinuata Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 15. Schuchert, Amer. Geol., 31, 1903, p. 168. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 379. Cayugan (Cobleskill and Manlius): Litchfield and Winfield, Herkimer County, New York. ILLJENOIDES Weller. Genotype: I. triloba Weller. Illsenoides Weller, Bull. Chicago Acad. Sci., Nat, Hist. Surv., 4, pt. 2, 1907, p. 226. Illsenoides triloba W T eller. Illsenoides triloba Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 226, pi. 17, figs. 6-9; pi. 19, figs. 12-14. Niagaran .(Racine) : Bridgeport, Joliet, and near Lemont, Illinois. ILLJENURUS Hall. Genotype: I. quadratus Hall. Illaenurus Hall, 16th Ann. Rep. New York State Cab. Nat. Hist., 1863, p. 176; Trans. Albany Inst., 5, 1867, p. 167. Zittel, Handb. Pal., 2, 1885, p. 612. Miller, N. A. Geol. Pal., 1889, p. 550. ILLAENURUS COLUMBIANA Weller. See Smyphysurus convexus. Illaenurus convexus Whitfield. Illaenurus convexus Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878, p. 66; Geol. Wisconsin, 4, 1882, p. 203, pi. 4, figs. 3-5. Chamberlin, ibi 1, 1883, p. 141, fig. Ozarkian (Mendota): East of Baraboo, Wisconsin. ILI^ENURUS EUREKENSIS Walcott. See Symphysurus eurekensis. ILL2ENUS Dalman. Genotype: Entomostracites crassicauda Wahlenl Illsenus Dalman, Svenska Vet.-Akad. Handl.,1826, 1827, p. 248. Dalman-Engel- hart, Die Palaeaden, Nurnberg, 1828, p. 50. Green, Mon. Tril. N. A., 1832, p. 18. Portlock, Rep. Geol. Londonderry, 1843, p. 299. Burmeister, Org. derTril., Berlin, 1843, p. 118. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 541, 553. Emmrich, Neues Jahrb. f. Min., etc., 1845, p. 41. Rouault, BT Soc. Geol. France, 2d ser., 4, 1847, p. 318. Hawle and Corda, Abh. bohmischen Gesell. d. Wiss., 5, 1847 (extract), p. 54, pi. 3, fig. 29. M< Ann. Mag. Nat. Hist. (2), 4, 1849, p. 399. Salter, Mem. Geol. Surv. United Kingdom, dec. 2, 1849, pis. 3, 4. Barrande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du Centre Boheme, 1, 1852, p. 669. McCoy, British Pal. Rocks Fossils, 1854, p. 171. Angelin, Pal. Scandinavica, 3d ed., Hol- mise, 1854, p. 41. Pictet, Traite* de Pal., 2d ed., 2, 1854, p. 514. Nieszkowski, Archiv. f. Naturk. Liv-, Ehst-u. Kurl. (1), 1, 1857, p. 579. Hitchcock, Gol, Vermont, 1, 1862, p. 280. Volborth, Mm. 1'Acad. Imp. Sci. St. Petrfr BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 661 ILLjENUS Continued. burg, 7th eer., 6, 1863, p. 2. Chapman, Canadian Jour. n. B., 8, 1863, p. 30. Expos. Min., Geol., Canada, 1864, p. 138. Salter, Mon. British Tril., Pal. Soc., 1867, pp. 180, 182. Malaise, Desc. Terr. Sil. du Centre de la Belgique, 1873, p. 85. Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874. p. 40. Holm, Bihang K. Svenska Vet.-Hand., 7, 1882, pp. 12, 15. Zittel, Handbuch d. Pal., 2, 1885, pp. 610, 611. Holm, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1886, pp. 18, 20, 42. Clarke, Jour. Morph., 2, 1888, pp. 254, 264. Miller, N. A. Geol. Pal., 1889, p. 550. Koken, DieLeitfossilien, Leipzig, 1896, p. 28, fig. 17, figs. 1-3. Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3, fig. 19. Reed, Geol. Mag., dec. 4, 1, 1898, p. 499. Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 630. Grabau, Bull. New York State Mus. 45, 1901, p. 222. Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 149. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 222. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, 1901, pp. 25, 26, 57. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292. Raymond, Zittel-Eastman Textb. Pal., 1913, p. 719. Illsenus aboynensis Whiteaves. Illaenus aboynensis Whiteaves, Geol. Surv. Can., Pal. Foss., 3, pt. 2, 1895, p. 108, pi. 15, figs. 7-8. Niagaran (Guelph): Aboyne, Ontario. Illsenus ambiguus Foerste. Illsenus ambiguus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 106, pi. 14, figs. 9a, 9b, lOa-lOc, 11; 15th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1887, p. 480, fig. 3, p. 478; Bull. Sci. Lab. Denison Univ., 2, 1887, p. 94; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 267; Geol. Surv. Ohio, 7, 1893, p. 525, pi. 26, 9a-9b, lOa-lOc, 11. Upper Medinan (Brassfield): Dayton, Ohio; Hanover, Indiana. Illaenus amerlcanus (Billings). Illsenus crassicauda Hall (not Wahlenberg), Pal. New York, 1, 1847, p. 24, pi. 4 (bis), fig. 13. Marcou, Geol. Map U. S., Boston, 1853, p. 22, pi. 1, fig. 2. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 215, pi. 18, fig. 5; pi. 15, fig. 15; pi. 3, fig. 13; Manual Geol., 1860, p. 100, fig. 89. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 9. Hitchcock, Geol. Vermont, 1, 1862, p. 280. Chapman, Canadian Jour., n. s., 8, 1863, p. 30, fig. 143; p. 201, fig. 196a; Expos. Min., Geol. Canada, 1864, p. 138, fig. 143; p. 173, fig. 196a. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 322, pi. 3, fig. la, b. Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig. Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22. Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 716. Illaenus americanus Billings, Canadian Nat. Geol., 4, 1859, p. 371; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 329, fig. 316a-d, 318. Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 714, figs. 20-23. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 234. Ruedemann, Bull. New York State Mus., 49, 1901, p. 61. Raymond and Narraway, Ann. Carnegie Mus., 4, nos. 3, 4, 1908, pi. 60, figs. 1-3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, fig. 1604. Illsenus taurus Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 49. Meek and Worthen; Geol. Surv. Illinois, 3, 1868, p. 320, pi. 3, fig. 2. Miller, N. A. Geol. Pal., 1889, p. 551, fig. 1017. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 73, pi. 12, figs. 4-9. Rowley, Missouri Bur. Geol. and Mines, 2d ser., 8; 1908, p. 57, pi. 15, fig. 1. Trenton: Ottawa, L'Original, etc., Canada; New York; Illinois; Wisconsin, Minnesota; etc. 662 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Illeenus angusticollis Billings. Illsenus angusticollis Billings, Canadian Nat. Geol., 4, 1859, p. 376, fig. 10; Geol. Canada, Geol. Surv. Canada, 1863, p. 151, fig. 113a-d. Raymond and Nar- raway, Ann. Carnegie Mus., 4, 1C08, p. 245, pi. 61, figs. 1-5. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 294. Black River: Island of St. Joseph, Grants Island, Lake Huron; La Petite Chau- diere, Hull, Canada. ILL^JNUS ARCTURUS Hall. See Thaleops arcturus. Illaenus arcuatus Billings. IllEenus arcuatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 279, fig. 265. Chazyan (Quebec-P): Cow Head, Newfoundland. Illaenus argentinus Kayser. Illsenus argentinus Kayser, Zeits. d. d. geol. (resell., 49, 1897, p. 283, pi. 7, figs. 8,9. Ordovician: East of Jachal, San Juan, Argentina. ILL^NUS ARMATUS Hall. See Bumastus armatus. ILL^NUS (BUMASTUS) BARRIENSIS Hall. See Bumastus ioxus. Illsenus bayfleldi Billings. Illsenus Bayfieldi Billings, Canadian Nat. Geol., 4, 1859, p. 369, figs. 4-6; Geol. Canada, Geol. Surv. Canada, 1863, p. 133, fig. 65a-c. Raymond, Ann. Carnegie Mus., 3, 1905, p. 348, pi. 13, figs. 11, 12; 7th Rep. Vermont State Geol., 1910, pi. 35, figs. 11, 12. Chazyan (Mingan): Mingan Islands, Canada. ILL^NUS CHICAGOENSIS Weller. See Bumastus chicagoensis. CLAVIPRONS Billings. See Thaleops clavifrons. Illaenus conifrons Billings. Illsenus conifrons Billings, Canadian Nat. Geol., 4, 1859, p. 378, fig. 11; Geol. Canada, Geol. Surv. Canada, 1863, p. 151, figs. Ilia, b. Hydrolaenus conifrons Salter, Mon. British Tril., Pal. Soc., 1867, p. 182 (gen. ref.). Chazyan (Mingan) : Mingan Islands, Canada. Illaenus conradi Billings. Illsenus Conradi Billings, Canadian Nat. Geol., 4, 1859, p. 372, figs. 7-9; Geol. Canada, Geol. Surv. Canada, 1863, p. 151, figs. 110a-c. Vogdes, Occ. Papers California Acad. Sci., No. 4, 1893, p. 330. Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 245, pi. 60, figs. 9, 10. Black River (Leray) : Falls of La Petite Chaudiere, vicinity of Ottawa, Canada. Illaenus consimilis Billings. Illaenus consimilis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 277, figs. 263a-c, 317, 318a. Grabau and Shimer, N. A. Index Fossils, 2, l( p. 294, fig. 1604a. Chazyan (Quebec L, M, N): Point Rich and Table Head, Newfoundland. Illaenus consobrlnus Billings. Illaenus consobrinus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 280, 266a, b; p. 332, footnote, figs. 320a-c. Chazyan (Quebec P): Cow Head, Newfoundland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 663 Illffinus cornigerus Hall and Whitfield. Illsenus cornigerus Hall and Whitfield, 24th Rep. New York State Mus. Nat. Hist., 1872, p. 186; 27th Rep. New York State Cab. Nat. Hist., 1875, pi. 13, figs. 20, 21. Niagaran (Louisville?): Falls of the Ohio. ILL^NUS CRASSICAUDA? Hall (1847). See Bumastus erastusi. ILI^ENUS CRASSICAUDA of American authors. See Illsenus americanus. ILLJENUS CRASSICAUDA AMERICANA Billings. See Illeenus americanus. ILLSENUS CUNICULUS Hall. See Bumastus cuniculus. Illomus danlelsl Miller and Gurley. Illsenus danielsi Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3, 1893, p. 76, pi. 7, figs. 3-5. Niagaran: Bonfield, near Kankakee, Illinois. liken us daytonensls Hall and Whitfield. Illsenus daytonensis Hall and Whitfield, Pal. Ohio, 2, 1875, p. 119, pi. 5, figs. 14-16. Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 104, pi. 14, figs. 4a-4b, 6, 7a-7c; Bull. Sci. Lab. Denison Univ., 2, 1887, p. 93, pi. 8, figs. 6-7; Geol. Surv. Ohio, 7, 1895, p. 525, pi. 26, figs. 4a-4b, 6, 7a-c; pi. 27, figs. 6, lOa; Proc Boston Soc. Nat. Hist., 24, 1889, p. 268; Jour. Geol., 11, 1903, p. 706. Upper Medinan (Brassfield): Dayton, Fair Haven, etc., Ohio. Illsenus depressus Foerste. Illeenus depressus Foerste, Cincinnati Soc. Nat. Hist. Jour., 21, 1909, p. 33. Clinton (West Union): Spring, Big Salt Lick Creek, and near Martins, Lewis County, Kentucky. ILLSENUS ERASTUSI Raymond. See Bumastus erastusi. Illicims fraternus Billings. Illsenus fraternus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 276, figs. 262a, b. Chazyan (Quebec L, N, P): Point Rich, Table Head, and near Portland Creek, Newfoundland. ILL2ENUS GLOBOSUS Billings. See Bumastus globosus. ILL^INUS GRAFTONENSIS Weller. See Bumastus graftonensis. Illsenus grandls Billings. Illsenus grandis Billings, Canadian Nat. Geol., 4, 1859, p. 380; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 27, 60 (loc. ref.). Anticostian (Becsie River Chicotte): Charleton Point, Gamache Bay, and South- west Point, Anticosti. ILI^ENUS HARRISI Weller. See Bumastus harrisi. ILL^NUS HERRICKI Foerste. See Thaleops ovata. ILLJSNUS IMPERATOR Hall. See Bumastus imperator. Illaenus Incertus Billings. Illsenus incertus Billings, Pal. Foss., 1, Geol. Surv. Canada, 186C, p. 332, fig 319a, b. Canadian (Beekmantown): Stanbridge, Quebec. 664 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ILL^JNUS INDETERMINATUS Raymond. See Bumastus limbatus. ILLENUS INDETERMINATUS Walcott. See Bumastus indeterminatus. ILLZ NUS INSIGNIS Hall. See Bumastus insignia. ILUENUS (BUMASTUS) INSIGNIS Meek. See Illsenus springfieldensia. ILKENUS loxus Chamberlin. See Bumastus ioxus. Illaenus latiaxiatus Raymond and Narraway. Illaenus latiaxiatus Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 243, pi. 60, figs. 4-8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295. Black River: Tetreauville and Mechanicsville, near Ottawa, Canada; Patterson- ville and Newport, New York. Illaenus lathlorsatus Hall. Illaenus latidorsata Hall, Pal. New York, 1, 1847, p. 230, pi. 60, figs. 6a, b. Trenton: Near Watertown, New York. ILLSJNUS MADISONIANUS Whitfield. See Bumastus niagarensis. ILLAENUS MADISONIANUS var. DEPRESSA Foerste. See Bumastus niagarensis. ILLAENUS MADISONIANUS var. ELONGATUS Foerste. See Bumastus niagarensis. ILLAENUS MILLERI Billings. See Bumastus milleri. IT.T./KNUS (NILEUS) MINNESOTENSIS Foerste. See Nileus vigilans. ILLJBNUS NIAGARENSIS Whitfield. See Bumastus niagarensis. ILLJENUS ORBICAUDA Billings. See Bumastus orbicaudatus. ILL^JNUS ORBICAUDATUS Billings. See Bumastus orbicaudatus. ILL.ENUS OVATUS Hall. See Thaleops ovata. ILLENUS PTEROCEPHALUS Whitfield. See Thaleops? pterocephalus. Illaenus punctatus Raymond. Illaenus punctatus Raymond, Annals Carnegie Mus., 3, 1905, p. 347, pi. 13, fig. 10; 7th Rep. Vermont State Geol., 1910, p. 226, pi. 35, fig. 10. Chazyan (Crown Point, Valcour) : Crown Point and Valcour Island, New York. Illaenus simulator Billings. Illsenus simulator Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 327, fig. 315a, b. Canadian (Beekmantown) : Stanbridge, Quebec. Illaenus springfleldensis Meek. Illamus (Bumastus) insignis? Meek, Pal. Ohio, 1, 1873, p. 189, figs. A, B, pi. 15, figs. 5a, c. Illaenus springfieldensis Meek, Pal. Ohio, 1, 1873, p. 129. Niagaran (Guelph): Springfield, Ohio. ILL^INUS TAURUS Hall. See Illaenus americanus. Illaenus transversalis Weller. Illaenus transversalis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 224, pi. 16, figs. 7-9. Niagaran (Racine): Bridgeport, Illinois. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 665 ILLJENUS TRENTONENSIS Emmons. See Bumastus milleri. Illaenus tumidlfrons Billings. Illaenus tumidifrons Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 278, fig. 264a, b. Chazyan (Quebec P.): Cow Head, Newfoundland. ILL^NUS VINDEX Billings. See Thaleops vindex. ILLUENUS (BUMASTUS) woRTHENANUs Meek and Worthen. See Bumastua armatua. INACHUS PERVETUS Conrad. See Euomphalus pervetus. INACHUS UNDATUS Emmona (part). See Plectoceras? undatus. INACHUS UNDATUS Conrad (part). See Plectoceras halli. INDIANOCRINUS Miller and Gurley. Genotype: I. punctatus Miller and Gurley. Indianocrinus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 1895, p. 83. Miller, N. A. Geol. Pal., 2d App., 1897, p. 748. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 145. Indianocrimis punctatus Miller and Gurley. Indianocrinus punctatus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 1895, p. 83, pi. 5, figs. 8-13. Miller, N. A. Geol. Pal., 2d App., 1897, p. 748, fig. 1362. Niagaran (Laurel): St. Paul, Indiana. INOCAULIS Hall. Genotype: I. plumulosa Hall. Inocaulis Hall, Amer. Jour. Sci. Arts, 2d ser., 11, 1851, p. 401; Pal. New York, 2, 1852, p. 176; 20th Rep. New York State Cab. Hist., 1868, p. 218, rev. ed., 1870, p. 252. Nicholson, Mon. British Grapt., 1872, p. 131. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 33; Trans. Acad. Sci. St. Louis, 4, 1884, p. 562, 583. Miller, N. A. Geol. Pal., 1889, p. 193. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 161. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 197. Elles and Wood, Mon. British Grapt., Pal. Soc., 1903, p. 34. Ruedemann, Mem. New York State Mus., 2, 1908, p. 185. INOCAULIS ANASTOMOTICA Ringueberg. See Palseodictyota anastomotica. INOCAULIS ARBUSCULA Ulrich. See Dictyonema arbusculum. INOCAULIS BELLA Hall and Whitfield. See Palaeodictyota bella. INOCAULIS CANADENSIS Whiteaves. See Dictyonema canadense. Inocaulis cervicornls Spencer. Inocaulis cervicornis Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull. Mus. Univ. State Missouri, 1, 1884, p. 37, pi. 5, fig. 5; Trans. Acad. Sci. St. Louis, 4, p. 587, pi. 5, fig. 5. Gurley, Jour. Geol., 4, 1896, pp. 99, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 51, fig. 65. Niagaran dolomite: Hamilton, Ontario. Inocaulis congregatus Gurley. Inocaulis congregatus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 54, fig. 70. Niagaran dolomite: Hamilton, Ontario. 666 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Inocaulis diffusus Spencer. Inocaulis diffusa Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull. Mus. Univ. State Missouri, 1, pp. 15, 36, 37, pi. 5, fig. 4; Trans. Acad. Sci. St. Louis, 4, pp. 565, 586, 587, pi. 5, fig. 4. Gurley, Jour. Geol., 4, 1896, pp. 99, 308. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 52, 53, figs. 67, 68. Niagaran dolomite: Hamilton, Ontario. Inocaulis diffusus crassiramus Gurley. Inocaulis diffusus crassiramus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 53, 54, fig. 69. Niagaran dolomite: Hamilton, Ontario. Inocaulis divaricatus Hall. Inocaulis divaricata Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 225, pi. 1, fig. 3; Trans. Albany Inst., 10, 1883, p. 58. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 35; Trans. Acad. Sci. St. Louis, 4, 1884, p. 585. Gurley, Jour. Geol., 4, 1896, pp. 99, 309. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 191. Niagaran (Waldron): Waldron, Indiana. INOCAULIS FLABELLUM James. See Licrophycua flabellum. Inocaulis granti (Dawson). Buthotrephis Grantii Dawson, Quart. Jour. Geol. Soc. London, 46, 1890, p. 613 fig. 16; p. 614, fig. 17. Inocaulis vegetabilis (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 55 pi. 5, fig. 1. Niagaran dolomite: Hamilton, Ontario. Inocaulis phycoides Spencer. Inocaulis phycoides Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull. Mus. Univ. State Missouri, 1, 1884, p. 38, pi. 5, figs. 6, 7, 7a; Trans. Acad. Sci. St. Louis, 4, 1884, p. 588, pi. 5, figs. 6, 7. Gurley, Jour. Geol., 4, 1896, pp. 99, 309. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 51, 52, fig. 66. Niagaran dolomite : Hamilton, Ontario. Inocaulis plumulosus Hall. Hall, Rep. Surv. 4th Dist. New York, 1843, p. 116, fig. 1. Inocaulis plumulosa Hall, Pal. New York, 2, 1852, p. 176, pi. 40G, figs. 2a, b; Geol. Surv. Canada, dec. 2, 1865, p. 18, fig. 26; 20th Rep. New York State Cab. Hist., 1868, p. 185, fig. 28; rev. ed., 1870, p. 215, fig. 28. Nicholson, Mon. British Grapt., 1872, p. 132, fig. 73. Spencer, Canadian Nat., 8, 1878, p. 458; ibid., 10, 1882, p. 166. Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 34, 35, pi. 5, fig. 1; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 564, 584, 585, pi. 5, fig. 1. Pocta, Sil. Syst. Boheme, 8, pt. 1, 1894, p. 197. Gurley, Jour. Geol., 4,. 1896, pp. 99, 309. Miller, N. A. Geol. Pal., 1889, p. 193, fig. 183. Ruedemann, Mem. New York State Mus., 11, 1908, p. 188, pi. 2, fig. 4; pi. 7, figs. 1, 2, fig. 93. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 46-49, figs. 59-62. Clinton (Rochester): Lockport, Rochester, etc., New York. Niagaran dolomite: Hamilton, Ontario. Plesiotypes.C&t. No. 54281, U.S.N.M. INOCAULIS? PROBLEMATICA Spencer. See Dendrograptus? problematicus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 667 Inocaulis ramulosus Spencer. Inocaulis ramulosa Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull. Mus. Univ. State Missouri, 1, p. 38, 1884, pi. 6, fig. 1; Trans. Acad. Sci. St. Louis, 4, 1884, p. 588, pi. 6, fig. 1. Gurley, Jour. Geol., 4, 1896, pp. 99, 309. Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 49, 50, figs. 63, 64. Niagaran dolomite: Hamilton, Ontario. Inocaulis? strlctus Gurley. Inocaulis? strictus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 54, pi. 2, fig. 6; fig. 71. Niagaran dolomite: Hamilton, Ontario. Inocaulis? thallosus Gurley. Inocaulis? thallosus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 55, pi. 2, fig. 5. Niagaran dolomite: Hamilton, Ontario. INOCAULIS VEQETABILIS (Gurley) Bassler. See Inocaulis granti. INOCAULIS WALKERI Spencer. See Acanthograptus walkeri. INTRICARIA Hall. See Chasmatopora Eichwald. IOCRINUS Hall. Genotype: Actinocrinus subcrassus Meek and Worthen. locrinus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 210 (extract 1866, p. 5). Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, pp. 285, 293 (Rev. Pal., pt. 1, pp. 62, 70); ibid., 1886, p. 127; ibid., 1890, p. 380; Amer. Jour. Sci., 3d ser., 26, 1883, pp. 370, 376, fig. 4. Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 210. Miller, N. A. Geol. Pal., 1889, p. 256, fig. 345. Bather, Ann. Mag. Nat. Hist., 6th eer., 5, 1890, p. 324, pi. 14, fig. 5; pi. 15, fig. 2; Kongl. Sv. Vet. Akad. Handl., 25, 1893, p. 21; Geol. Mag., dec. 4, 3, 1896, p. 73; ibid., dec. 4, 6, 1899, p. 42, footnote, fig. 18; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 145, fig. 26, 1; 28; 58, 1. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 153. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 713. Zittel, Handb. Pal., 1, 1910, p. 151. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 212. locrinus crassus (Meek and Worthen). Heterocrinus crassus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 147; Geol. Surv. Illinois, 3, 1868, p. 324, pi. 4, figs, la-c; Geol. Surv. Illinois, 6, 1875, p. 493, pi. 23, fig. 1. locrinus crassus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 295 (Rev. Pal., pt. 1, p. 72) (gen. ref.). Richmond (Maquoketa): Kendall County, Illinois. locrinus subcrassus Meek and Worthen). Actinocrinus Bubcrassus Meek and Worthen, Proc> Acad. Nat. Sci. Philadelphia, (1), 17, 1865, p. 148. Heterocrinus subcrassus Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 325, pi. 4, figs. 5a-d. Dyche, Science, 20, 1892, p. 66; Amer. Geol., 10, 1892, p. 30; Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 101. Heterocrinus (locrinus) subcrassus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, (1), 1871, 23 (3), 1, p. 310; Geol. Surv. Ohio, 1, pt. 2, p. 15, pi. 1, figs. 9a, b. 668 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. locrlnus subcrassus Continued. locrinus Bubcrassus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 295 (Rev. Pal., pt. 1, p. 72); ibid., 1890, p. 381, pi. 10, fig. 5. Bather, Geol. Mag., dec. 4, 6, 1899, p. 35, fig. 11. Miller, N. A. Geol. Pal., 1889, p. 257, fig. 346; Treatise on Zool., pt. 3, Echinodenna, London, p. 120, fig. 26, 1. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 726, pi. 4, figs. 7, 7a. Heterocrinus? (locrinus) Polyxo Hall, 24th Rep. New York State Cab. Nat. Hist., 1872*, p. 212, pi. 5, figs. 1-4 (extract, 1871). Trenton-Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky. locrinus trentonensis Walcott. locrinus trentonensis Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 210, pi. 17, figs. 7, 8. Trenton: Trenton Falls, New York. ISCHADITES Murchison. Genotype: Tetragonis murchisom Eichwald. Ischadites Murchison, Siluria, 1837, p. 697. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 86. Gumbel, Abh. d. Math.-Ph.ys. Classe d. k. Bay. Akad. d. Wise., 12, 1 Abth., 1875, p. 172. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist, 1878, p. 19. Zittel., Handb. Pal., 1, 1880, p. 728. Roemer, Leth. Geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p. 291. Hinde, Quart. Jour. Geol. Soc. London, 11, 1884, p. 810. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, pp. 246, 249. Schluter, Zeits. d. d. geol. Gesell., 39, 1887, p. 7. Geinitz, ibid., 40, 1888, p. 19. Rauff, ibid., 40, 1888, p. 606. Hinde, Mon. British Foss. Sponges, Palaeontographical Soc., 1888, p. 119. Rauff, Abh. d. math.-phys. Classe d. k. bayer. Akad. Wiss., 18, 3, Abth., 1892, p. 692. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 61, pi. F, figs. 5-10; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 72. Pakeospongia D'Orbigny, Prodr. de Pal., 1, 1849, p. 26. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 540. Bornemann, Nova Acta der Ksl. Leop. -Carol. Deutschen Akad. der Natur., 51, 1886, p. 21. Hinde, Geol. Mag., dec. 3, 4, 1887, p. 228. Miller, N. A. Geol. Pal., 1889, p. 162. Rauff, Neues Jahrb. f. Min., Geol. Pal., 2, 1891, p. 92. (Genotype, cyathiformis Hall.) Tetragonis Eichwald, Urwelt. Russlands, heft 2, 1842, p. 81. Chapman, Canadian Jour., n. s., 2, 1857, p. 304. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 386. Roemer, Leth. Geog., 1 Theil, Leth. Pal., Erste Lief, 1880, p. 303. Zittel, Handb. Pal., 1, 1880, p. 728. Roemer, Zeits. d. d. Gesell., 35, 1883, pp. 705, 707. Selenoides Owen, Geol. Surv. Wisconsin, Iowa, and Minnesota, 1852, p. 586. Dictyocrinus Hall, Pal. New York, 3, 1859, p. 135. Receptaculites (part) Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 378. Ischadites canadensis Billings. Ischadites canadensis Billings, Geol. Canada, 1863, p. 309, fig. 313; p. 327. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, Pal., 1895 (ext., 1893), p. 66. Receptaculites canadensis Billings, Pal. Foss., 1, 1865, p. 384, fig. 363; Canadian Nat. Geol., 2d ser., 2, 1865, p. 191, fig. 10. Roemer, Leth. Pal., 1880, p. 289. Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 844. Niagaran (Lockport?): Township of Esquesing, Ontario. Ischadites circularis (Emmons). Receptaculites circularis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 230, fig. 82; Man. Geol., 1860, p. 103, fig. 93. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 852, fig. James, Jour. Cincinnati Soc. Nat. Hist., 14, p. 63, pt. 1. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 669 Ischadites clrcularls Continued. Ischadites circularis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p.65. Lorraine shales: New York. Ischadites cyathiformis (Hall). cyathiformis Hall, Pal. New York, 1, 1847, p. 72, pi. 25, figs. 6a-6c. Ischadites cyathiformis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 65 (extr., 1893). Palseospongia cyathiformis d'Orbigny, Prodr. d. Pal., 1, 1849, p. 26 (gen. ref.). Palseochonia cyathiformis Fromental, Introduction Etude Eponges Foss., Caen., 1859, p. 45. Mohawkian (Chambersburg): Carlisle, Pennsylvania. ISCHADITES DICKHAUTI James. See Lepidolites dickhauti. ISCHADITES ELONGATUS James. See Lepidolites dickhauti. ISCHADITES HEMISPHERICUS Winchell and Marcy. See Receptaculites hemispher- icus. Ischadites insularls (Billings). Receptaculites? insularis Billings, Cat. Silurian Foss. Anticosti, Geol. Surv. Canada, 1866, p. 29. Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 846. Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 61 (extr., 1893). Gamachian (Ellis Bay): Gamache Bay, Anticosti. Ischadites iowensis (Owen). Selenoides iowensis Owen, Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, p. 587, pi. 2B, fig. 13. Receptaculites (Selenoides) iowensis Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 14. Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 385, fig. 364. Hall, 16th Ann. Rep. New York State Cab. Nat. Hist., 1863, pp. 68, 69. Billings Canadian Nat. and Geol., 2d ser., 2, 1865, p. 191, fig. 11. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 852, fig. Winchell and Schuchert, Geol. Minnesota, 3, pt. 2, 1893, p. 64, pi. F, figs. 5-6. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 143. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 153. Receptaculites (Ischadites) iowensis Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 19, fig. 30. OrbitulitesreticulataOwen, Geol. Rep. Iowa, Wisconsin, Illinois, 1844, pi. 18, fig. 7. Receptaculites reticulata Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 11 (gen. ref.). Receptaculites fungosum Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 15.^-Whit- field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 45, pi. 5, figs. 5, 6. Receptaculites globulare Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 16. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 301, pi. 2, figs. 2a-b. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 44, pi. 5, fig. 7. Receptaculites sp. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, pt. 3, p. 301, pi. 2, figs, la, b. Ischadites koenigii (part) Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 836. Trenton (Prosser-Galena): Iowa; Illinois; Wisconsin; Minnesota and Manitoba. ISCHADITES KCENIGH Hinde (part). See Ischadites iowensis and I. subturbinatus. 670 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Ischadites subturbinatus Hall. Receptaculites subturbinatus Hall, Trans. Albany Inst., 4, 1863, p. 224; 28th Rep. New York State Mus. Nat. Hist., 1879, p. 103, pi. 3, figs. 1-3 (doc. ed., 1875 (1877), pi. 3, figs. 1-3); llth Rep. State Geol. Indiana, 1882, p. 221, pi. 2, figs. 1-3. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 855, text figs. Ischadites subturbinatus Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895 (ext., 1893), p. 66. Ischadites koenigii (part) Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 836. Niagaran (Waldron): Waldron, Indiana. ISCHADITES TESSELATUS Winchell and Marcy. See Receptaculites tesselatus. ISCHTRINIA Billings. Genotype: I. winchelli Billings. Ischyrinia Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 16. Miller, N. A. Geol. Pal., 1889, p. 483. Ischyrina Clarke, Mem. New York State Mus., 6, 1904, p. 406, expl. pi. 9. Observation. Probably the same as Technophorus. ISCHYRINIA PLICATA Billings. See Technophorus plicata. Ischyrinia winchelli Billings. Ischyrinia Winchelli Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1886, p. 16, figs. 4a-4c. Miller, N. A. Geol. Pal., 1889, p. 483, fig. 834. Richmond (English Head and Charleton): Macasty Bay, Anticosti. Plastotype. Cat. No. 46204, U.S.N.M. ISCHYRODONTA Ulrich. Genotype: I. truncata Ulrich. Anodontopsis (part) Meek, Amer. Jour. Sci. Arts, 3d ser., 2, 1871, p. 209; also 1873, Ohio Pal., 1, p. 141. Ischyrodonta Ulrich, Amer. Geol., 6, 1890, p. 173; Geol. Surv. Ohio., 7, 1893, p. 671. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 981. Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 416. Miller, N. A. Geol. Pal., 1st App., 1892, p. 700. ISCHYRODONTA CURTA Foerste. See Ischyrodonta unionoidee. Ischyrodonta decipiens Ulrich. Ischyrodonta decipiens Ulrich, Geol. Surv. Ohio, 7, 1893, p. 673, pi. 54, figs. 16-19. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 999, pi. 45, figs. 3-3c. Richmond (Elkhorn): Near Richmond, Indiana. Cotypes. Cat. Nos. 46205, 46206, U.S.N.M. Ischyrodonta elongata Ulrich. Ischyrodonta elongata Ulrich, Amer. Geol., 6, 1890, p. 175, figs. 12a-c; Geol. Surv. Ohio, 7, 1893, p. 675, pi. 54, figs. 20, 21. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1000, pi. 45, figs. 4, 4a. Richmond (Whitewater) : Oxford, Ohio; Richmond, Indiana. Holotype and plesiotypeC&t. Nos. 46207, 46208, U.S.N.M. Ischyrodonta miseneri Ulrich. Ischyrodonta miseneri Ulrich, Rep. Geol. Surv. Ohio, 7, 1893, p. 675, pi. 54, figs. 10, 11. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1001, pi. 45, figs. 5, 5a. Cypricardites miseneri Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.). Richmond (Whitewater) : Richmond, Indiana. Holotype.Czt. No. 46209, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 671 Ischyrodonta modiollformls Ulrich. iBchyrodonta modiolifonnis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 676, pi. 64, figs. 4-9. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1001, pi. 45, figs. 6, 6e. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416, fig. 539. Richmond (Whitewater): Richmond, Indiana. Cotypes Cat. No. 46210, U.S.N.M. Ischyrodonta ovalls Ulrich. Ischyrodonta ovalis Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1892, p. 242, fig. 27; Geol. Surv. Ohio, 7, 1893, p. 674, pi. 54, figs. 12-15; Geol. Minnesota, 3, pt. 2, 1894, p. 477, fig. 35. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1002, pi. 45, figs. 7-7b. Cypricardites ovalis Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.). Richmond (Whitewater) : Near Richmond, Indiana. Holotype.C&t. No. 46211, U.S.N.M. Ischyrodonta truncata Ulrich. Ischyrodonta truncata Ulrich, Amer. Geol., 6, 1890, p. 174, fig. 11. Miller, N. A. Geol. Pal., 1st App., 1892, p. 700, fig. 1258. Ulrich, Geol. Surv. Ohio, 7, 1893, p. 672, fig. 1. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1003, pi. 45, figs. 8-8c. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416, fig. 540. Richmond (Whitewater) : Oxford, Ohio, and Richmond, Indiana. Cotypes. G&t. No. 46212, U.S.N.M. Ischyrodonta unlonoides (Meek). Anodontopsis? unionoides Meek, Amer. Jour. Sci. Arts, 2, 1871, p. 299. Anodontopsis (Modiolopsis?) unionoides Meek, Pal. Ohio, 1, 1873, p. 141, pi. 12, figs. 2a, b. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 227. Modiolopsis unionoides Miller, N. Amer. Geol. Pal., 1890, p. 491 (gen. ref.). Ischyrodonta unionoides Ulrich, Geol. Surv. Ohio, 7, 1893, p. 677, pi. 54, figs. 1-3. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1004, pi. 46, figs. 1, la. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416, fig. 538. Ischyrodonta curta Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 298, pi. 3, fig. 14. Maysville (Bellevue): Cincinnati, Ohio, and vicinity. Pulaski shales of New York and Canada. Plesiotypes. Cat. No. 46213, U.S.N.M. ISOARCA LOGANI Woodward. See Ctenodonta nasuta. ISOCHILINA Jones. Genotype: Leperditia Ottawa Jones. Isochilina Jones, Geol. Surv. Canada, dec. 3, 1858, p. 97; Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 248; Monthly Microsc. Jour., 4, 1870, p. 191. Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 533. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 21, No. 2, 1873, p. 8. Zittel, Handb. Pal., 2, 1885, p. 552. Vogdes, Annals New York Acad: Sci., 5, 1889, p. 22, pi. 2, fig. 18. Miller, N. A. Geol. Pal., 1889, p. 551. Koken, Die Leitfossilien, Leipzig, 1896, p' 40. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 307. Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 643. Grabau, Bull. New York State Mus., 45, 1901, p. 218; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 218. Jaekel, Zeits. geol. Gesell., 53, 1901, p. 149. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 341. Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 737. 672 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ISOCHILINA AMIANA Ulrich. See IsocMlia gregaria. ISOCHILINA AMIANA var. iNSiGNis Ulrich. See Isochilina cristata. Isochillna amii Jones. Isochilina Amii Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 68, pi. 10, figs. 14a, -b. Trenton: Lorette, Quebec. Isochilina ampla Ulrich. Isochilina ampla Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1891, p. 179, pi. 11, figs. 8a-d. Trenton (Catheys) : Nashville, Tennessee. Cotypes. Cat. No. 41291, U.S.N.M. Isochilina armata (Walcott). Leperditia (Isochilina) armata Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 213, pi. 17, fig. 10 (extract, 1883, p. 7). Isochilina kentuckiensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 179, pi. 11, figs, lla-lld. Black River (Lowville): Russia, Herkimer County, New York; High Bridge and Frankfort, Kentucky. PlesiotypeC&t. No. 43155, U.S.N.M. (Holotype of I. kentuckiensis.) Isochilina armata pygmaea Ruedemann. Isochilina armata pygmaea Ruedemann, Bull. New York State Mus., 49, 1901, p. 72, pi. 7, figs. 19-25. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Isochilina? clavigera (Jones). Beyrichia clavigera Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 65, pi. 11, fig. 7. Isochilina? clavigera Ulrich and Baesler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig. 3. Stones River (Pamelia) : Aylmer, Quebec. Plesiotype.G&t. No. 41653, U.S.N.M. Isochilina clayigera clavifracta (Jones). Beyrichia clavigera clavifracta Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3', 1891, p. 65, pi. 11, fig. 8. Stones River (Pamelia): Aylmer, Quebec. Isochilina cristata (Whitfield). Primitia? cristata Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 59, pi. 13, figs. 1, 2. Lesley, Geol. Surv. Pennsylvania Rep. P4, 1889, p. 743, figs. Isochilina cristata Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 23, pi. 1, fig. 8. Seely, Vermont State Geol., Rep., 7, 1910, pi. 61, fig. 15. Isochilina amiana var. insignis Ulrich, Jour. Cincinnati Soc. Nat. Histf; 13, pt. 1, 1891, p. 181, pi. 11, fig. 13. Canadian (Beekmantown): Cave Island, Ball's 'Bay, Lake Champlain; drift at Ottawa, Ontario. Plesiotype. Cat. No. 41290, U.S.N.M. (Holotype of I. amiana insignis). ISOCHILINA CYLINDRICA Grabau. See Leperditia cylindrica. Isochilina gracilis (Jones). Leperditia (Isochilina) gracilis Jones, Ann. Mag. Nat. Hist. (3), 1, 1858, p. 248, pi. 10, fig. 2; Geol. Surv. Canada, dec. 13, 1858, p. 98, pi. 11, fig. 15. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 673 Isochilina gracills Continued. Isochilina gracilis Jones, Monthly Micros. Jour., 4, 1870, p. 185, pi. 61, fig. 18. Dwight, Trans. Vassar Bros. Inst., 5, 1890, p. 76. Trenton or Black River: White Horse Rapids, Isle Jesus, Canada. ISOCHILINA GRANDIS Jones. See Isochilina grandis latimarginata. Isochilina grandis latimarginata (Jones). Leperditia marginata? Jones (not Keyserling), Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 94, 100, pi. 7, figs. 14a-d. Isochilina grandis Jones (not Schrenk), Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 347; ibid., 9, 1882, p. 171. Isochilina grandis var. latimarginata Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 78, pi. 10, figs. 1-4. Niagaran: Long Point, Lake Winnipegosis, Cedar Lake, and Saskatchewan River, Canada. Isochilina gregarla (Whitfield). Primitia gregaria Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 58, pi. 13, figs. 3-5. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 743, figs. Isochilina gregaria Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 22, pi. 1, figs. 9, 10. Seely, Vermont State Geol. Rep., 7, 1910, pi. 61, figs. 16, 17. Isochilina Ottawa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 551. Isochilina Ottawa var. intermedia Jones, Contr. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 66, pi. 10, figs. lOa, b, lla, b. Isochilina amiana Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1891, p. 180, pi. 11, figs. 12a-c. Canadian (Beekmantown) : Cave Island, Ball's Bay, Vermont; drift at Ottawa, Ontario. . No. 41289, U.S.N.M. (Holotype of I. amiana.) Isochilina gregaria ulrichlana Jones. Isochilina gregaria ulrichiana Jones, Geol. Mag., dec. 4, 10, 3903, p. 301, fige. 1, 2a, b. Trenton(?): Hamilton, Ontario (drift). Isochilina Jonesi Wetherby. Isochilina jonesi Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 80, pi. 2, figs. 7, 7a. Miller, N. A. Geol. Pal., p. 552, fig. 1018. Ulrich, Jour. Cincin- nati Soc. Nat. Hist., 13, pt. 1, 1891, p. 179, pi. 11, figs. 9a-c. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 342, figs. 16561-n. Trenton ( Perry ville) : Mercer County, Kentucky. ISOCHILINA KENTUCKIENSIS Ulrich. See Isochilina armata. ISOCHILINA LABELLOSA Jones. See Leperditella? labellosa. Isochilina labrosa Jones. Isochilina labrosa Jones, Ann. Mag. Nat. Hist., 6th ser, 3, 1889, p. 383, figs. 3, 4; pi. 17, fig. 11. Chapman, Proc. Roy. Soc. Victoria, n. s., 17, pt. 1, 1904, p. 299, pi. 16, fig. 3. Silurian: Cap Bon Ami, New Brunswick; ?Cave Hill, Lilydale, Victoria. Isochilina musculosa Foerste. Isochilina musculoea Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 30, pi. 1, fig. 2. Cayugan (Kokomo): Kokomo, Indiana. 84243 Bull. 9215 - 43 674 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Isochlliua Ottawa (Jones). Leperditia (Isochilina) Ottawa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 243, pi. 10, fig. 1; Geol. Surv. Canada, dec. 3, 1858, p. 97, pi. 11, fig. 14. Isochilina Ottawa Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 345; Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 66. Leperditia Ottawa Dwight, Vassar Bros. Inst., 5, 1890, p. 76. Canadian (Beekmantown): Grenville, Quebec. ISOCHILINA OTTAWA var. Jones. See Isochilina gregaria. ISOCHILINA OTTAWA var. INTERMEDIA Jones. See Isochilina gregaria. Isochilina panolensis Foerste. Isochilina panolensis Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 328; Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 30, pi. 1, fig. 1. Clinton (Waco) : Panola and near Irvine, Kentucky. Isochilina saffordi Ulrich. Isochilina saffordi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 178, pi. 11, figs. lOa-d. Trenton (Catheys) : Nashville, Tennessee. Holotype. Cat. No. 41288, U.S.N.M. ISOCHILINA SCOFIELDI Miller. See Macronotella scofieldi. Isochilina seelyi (Whitfield). Primitia Seelyi Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 60, pi. 13, figs. 6, 7. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 744, figs. Isochilina seelyi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 22, pi. 1, fig. 7. Seely, Vermont State Geol. Rep., 7, 1910, pi. 61, fig. 17. Canadian (Beekmantown): Shoreham, Vermont; Providence Island, Lake Champlain. Isochilina? subnodosa Ulrich. Isochilina subnodosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 177, pi. 11, figs. 7a-c. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig. 2. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 342, figs. 1656i-k. Trenton (Perryville): Perry ville, etc., Kentucky. Holotype. Cat. No. 41294, U.S.N.M. Isochilina whiteavesi Jones. Isochilina whiteavesii Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 68, pi. 10, figs. 13a, b. Trenton: Lorette Falls, Quebec. ISOGRAPTUS GIBBERULUS Moberg. See Didymograptus (Isograptus) caduceus. ISOTELOIDES Raymond. Genotype: I. whitfieldi Raymond. Isoteloides Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, pp. 36, 67; 7th Rep. Vermont State Geol., 1910, p. 223; Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 115. Isoteloides angusticaudus (Raymond). Isotelus angusticaudum Raymond, Ann. Carnegie Mus., 3, 1905, p. 345, pi. 13, figs. 3, 4. Isoteloides angusticaudus Raymond, 7th Rep. Vermont State Geol., 1910, p. 223, pi. 35, figs. 3, 4; pi. 37, fig. 7; pi. 38, fig. 1; pi. 39, fig. 8; Ann. Carnegie Mus., 7, 1910, p. 68, pi. 17, fig. 7; pi. 18, fig. 1; pi. 19, fig. 8. Perkins, Rep. Vermont State Geol., 8th ser., 1912, pi. 18, fig. 1. Chazyan (Crown Point, Valcour): Valcour Island and Chazy, New York; Isle La Motte, Vermont. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 675 Isoteloldes homalonotoldes (Walcott). Asaphus homalonotoides Walcott, 31st Rep. New York State Mus. Nat. Hist., 1879, 1880, adv. sheets Sept. 20, 1877, p. 70. Whitfield, Geol. Wisconsin, 4, 1882, p. 237, pi. 5, fig. 4. Asaphus triangulates Whitfield, Ann. Rep. for 1879, Wisconsin Geol. Surv., 1880, p. 59. Isoteloides homalonotoides Raymond, Ann. Carnegie Mus., 7, 1910, p. 52, pi. 16, figs. 9-11. Black River: Dunleith, Illinois; Grant County, Wisconsin; Pattersonville, New York; Ottawa, Canada. Trenton: Smiths Basin, New York. Isoteloldes whltfleldl Raymond. Asaphus canalis Whitfield (not Hall), Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 336, pi. 34, figs. 1-8; ibid., 2, 1889, p. 64, pis. 11, 12. Seely, Vermont State Geol., Rep. 7, 1910, pi. 58. Isotelus canalis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 291, fig. 1600. Isoteloides whitfieldi Raymond, Ann. Carnegie Mus., 7, 1910, p. 36, pi. 16, figs. 1-4, fig. 4. Canadian (Beekmantown): Crown Point, New York; FortCassin, Vermont. ISOTELUS DeKay. Genotype: I. gigas DeKay. Isotelus DeKay, Ann. Lyceum Nat. Hist. New York, 1, p. 174. Green, Mon. Tril. N. A., 1832, pp. 17, 64. Edwards, Hist. Nat. d. Crust., 3, 1840, p. 297. Portlock, Rep. Geol. Londonderry, 1843, p. 293. Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 541, 554. McCoy, Ann. Mag. Nat. Hist., (2), 4, 1849, p. 399; British Pal. Rocks, Fossils, 1854, p. 169. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 215. Salter, Mem. Geol. Surv. United Kingdom, dec. 11, 1864, pi. 3; Mon. British Tril., Pal. Soc., 1866, p. 147. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 137. Zittel, Handb. Pal., 2, 1885, p. 608. Brdgger, Afh. Sveriges Geol.Unders., ser. C, No. 82, 1886, p. 31; Bihang till K. Sven. Vet.-Akad. Handl., 11, No. 3, 1886, p. 31. Clarke, Geol. Minne- sota, 3, pt. 2, 1894, p. 700. Koken, Die Leitfossilien, Leipzig, 1896, p. 28. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 8th ser., 6, 1898, pp. 11, 12, 33. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1052. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 291. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 47. Raymond, Trans, and Proc. Roy. Soc. Canada, 5, 3rd ser., sec. 4, 1912, p. 115; Zittel-Eastman Textb. Pal., 1913, p. 719. ISOTELUS ALACEK Billings. See Brachyaspis alacer. ISOTELUS ANGUSTICAUDUS Raymond. See Isoteloides angusticaudus. Isotelus arenlcola Raymond. Isotelus arenlcola Raymond, Ottawa Nat., 24, 1910, p. 130, figs. 1, 2 (?pl. 2, fig. 5). Chazyan (Aylmer): Deschenes and Britannia, near Ottawa, and West Hawkes- bury, Canada. ISOTELUS? BEARSI Raymond. See Vogdesia bears! Isotelus benjamin! TJlrich. Isotelus benjamini Ulrich in Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 144, fig. 4. Trenton (Upper): Covington and Rogers Gap, Kentucky. 676 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Isotelus beta Raymond. Asaphus sp. beta Raymond, Ann. Carnegie MUB., 3, 1905, p. 342, pi. 12, fig. 9. Isotelus beta Raymond, 7th Rep. Vermont State Geol., 1910, pi. 36, fig. 9, pi. 39, figs. 4-7; Ann. Carnegie MUB., 7, 1910, p. 67, pi. 19, figs. 4-7. Chazyan (Crown Point, Valcour): Crown Point, Valcour Island, Platteburgh, and Chazy, New York. Isotelus canalis Hall. Isotelus canalis (Conrad MS.) Hall, Pal. New York, 1, 1847, p. 25, pi. 4 (bis), figs. 17-19. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 236, pi. 3, figs. 17-19. Asaphus canalis Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 70 (gen. ref.). Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 270, figs. 255a, b; p. 352, fig. 340. Chazyan: Chazy, New York; Newfoundland. Observation. Neither defined nor figured so as to be recognized. ISOTELUS CANALIS Clarke. See Isotelus gigas. ISOTELUS CANALIS Grabau and Shimer. See Isoteloides whitfieldi. ISOTELUS CANALIS Weller. See Asaphellus gyracanthus. Isotelus coYingtonensis Ulrich. Isotelus covingtonensis Ulrich in Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 145, figs. 1, 2. Trenton (Upper): Covington, Rogers Gap, etc., Kentucky. Isotelus cyclops Green. Isotelus cyclops Green, Monthly Amer. Jour. Geol., 2, 1832, p. 560, pi., fig. 7; Mon. Tril. N. A., 1832, p. 69, fig. 7, cast 24. Middle Ordovician: Western New York. Plastotype.C&t. No. 25703, U.S.N.M. ISOTELUS EMORYI Walcott. See Onchometopus emoryi. ISOTELUS FLORENCEVILLENSIS Calvin. See Onchometopus susae. ISOTELUS GIGAS of authors. See Isotelus jacobus, I. latus, and I. iowensis. Isotelus gigas deKay. Isotelus gigas DeKay, Annals Lyceum Nat. Hist. New York, 1, 1824, p. 176, pi. 12, fig. 1; pi. 13, fig. 1. Green, Monthly Amer. Jour. Geol., 1832, p. 560; Mon. Tril. N. A., 1832, p. 71, cast 21, 22. Milne-Edwards, Crust., 3, 1840, p. 298. Troost, 5th Geol. Rep. Tennessee, 1840, p. 57. Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 47, fig. 1. Emmons, ibid., 2, 1842, p. 389, fig. 1. Mather, ibid., 1, 1843, p. 397, fig. 1. Goldfuss, Neues Jahrb. f. Min., etc., 1843, p. 554. Owen, Amer. Jour. Sci., 47, 1844, p. 363, fig. 1. Hall, Pal. New York, 1, 1847, p. 25, pi. 4 (bis), fig. 16; p. 231, pi. 60, figs. 7a-i; pi. 61, figs. 3a-f, 3i-m, 4a-c; pi. 62, figs, la-c, 2; pi. 63; also p. 254, pi. 66, fig. 5. Emmons, Amer. Geology, 1, pt, 2, 1855, p. 215, pi. 16, figs. 9-12. Billings, Canadian Nat. Geol., 1, 1856, pp. 45, 46, figs. 9, 11. Rogers, Geol. Pennsyl- vania, 2, pt. 2, 1858, p. 819, fig. 610. Emmons, Man. Geol., 1860, p. 100, fig. 89. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 11. Hitchcock, Geol. Vermont, 2, 1862, pi. 12, fig. 5. Chapman, Expos. Min., Geol. Canada, 1864, p. 136, fig. 140. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 302, figs. Clarke, Geol. Minnesota, 3, pt 2, 1894, p. 701, figs. 6-8; p. 706. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 174. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 192, pi. 14, figs. 6, 7. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292, fig. 1601. Raymond, Ann. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 677 Isoteius gigas Continued. Carnegie Mus., 7, 1910, p. 53, pi. 15, figs. 1, 2. Ruedemann, Bull. New York State Mus., 162, 1912, p. 116, pi. 10, fig. 1. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 47. Raymond, Roy. Soc. Canada, Trans, and Proc., 3d ser., 5, sec. 4, 1912, p. 119, pi. 2, figs. 7, 9; p. 120, pi. 3, fig. 6; Bull. Mus. Comp. Zool., 58, 1914, p. 248, pi. 1, figs. 1, 2; pi. 2, figs. 2-5; pi. 3, fig. 3. Asaphus gigas Dalman, K. K. Aka'd. Handl. for 1826, 1827, p. 276. Packard, Amer. Nat., 14, 1880, pp. 505-508, figs. 2-4. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 153, pi. 10, figs. 18, 19. Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig. Miller, N. A. Geol. Pal., 1889, p. 531, fig. 967. Rowley, Missouri Bur. Geol., Mines, 2d ser., 8, 1908, p. 57, pi. 15, fig. 2. Asaphus (Isoteius) gigas Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 41, fig. 5. Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 138. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 232. Asaphus platycephalus Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, p. 208. Bronn, Leth. Geog., 1, 1835, p. 115, pi. 9, fig. 8. Green, Amer. Jour. Sci., 37, 1839, p. 37. Buckland, Bridgw. Treatise, 2, 1840, p. 76, pi. 63, fig. ]2. Burmeister, Org. Tril., 1846, p. 110, pi. 2, fig. 12 (Roy. Soc. ed., 1846). Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 219, fig. 229. Chapman, Canadian Jour., n. s., 4, 1859, p. 142; 8, 1863, p. 29, fig. 140; p. 200, fig. 196; Expos. Min. and Geol., 1864, p. 172, fig. 196. Billings, Canadian Nat.,1864 (2), 1, 1864, p. 370. Woodward, Quart. Jour. Geol. Soc. London, 26, 1870, p. 487, fig. 1. Dana, Amer. Jour. Sci., 3d ser., 1, 1871, pp. 320, 386; Ann. Mag. Nat. Hist., 4th ser., 7, 1871, p. 366. Woodward, Geol. Mag., 8, 1871, pi. 8, fig. 1. Dana, Canadian Nat., n. s., 6, 1872, p. 348. Eichwald, Neues Jahrb. f. Min. Geol. Pal., 1873, p. 1, pi. 1. Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875 (1877), footnote, p. 95; ibid., mus. ed., 1879; 31st Rep. New York State Mus. Nat. Hist., 1879, pp. 62, 64; Bull. Mus. Comp. Zool., 8, 1881, pp. 191-216, pi. 2, fig. 9; Science, 3, 1884, p. 281. Woodward, Geol. Mag., dec. 3, 1, 1884, p. 78, text fig. Asaphus (Isotelus) platycephalus Burmeister, Org. der Tril., Berlin, 1843, p. 127, pi. 2, fig. 12. Isoteius platycephalus Bronn and Roemer, Leth. Geog., 1, 1851-56, p. 632, pi. 9, fig. 8; pi. 9', fig. 5. Isoteius planus DeKay, Ann. Lyceum Nat. Hist. New York, 1, 1824, p. 178, pi. 13, fig. 2. Green, Monthly Amer. Jour. Geol., 1832, p. 560; Mon. Tril. N. A., 1832, p. 68, cast 23. Goldfuss, Neues Jahrb. f. Mem., etc., 1843, pi. 554. Asaphus planus Dalman, K. K. Akad. Handl., 1827, p. 276. Isoteius stegops Green, Mon. Tril. N. A., 1832, p. 71, cast 26, 27. Brongniatia isotelea Eaton, Geol. Textb., 2d ed., 1832, p. 33, pi. 2, fig. 22. Asaphus Murchisoni Castelnau, Essai Syst. Sil. 1'Amer. Sept., 1843, p. 19, pi. 4, fig. 3. ?Isotelus canalis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 707, fig. 9. Mohawkian and Cincinnatian: United States and Canada. Observation. Several distinct species are undoubtedly recorded in the above citations. (See Raymond, 1914.) Isoteius harrisi Raymond. Isoteius harrisi Raymond, Annals Carnegie Mus., 3, 1905, p. 343, pi. 12, figs. 3, 5, 7. Schmidt, Mem. Imp. Acad. Sci., St. Petersburg, 20, 1907, p. 75. Ray- mond, 7th Rep. Vermont State Geol., 1910, p. 221, pi. 34, figs. 3, 5-7; pi. 37, fig. 1; Ann. Carnegie Mus., 7, 1910, p. 65, pi. 17, fig. 1, fig. 2. Chazyan: Crown Point, Valcour Island, Chazy, and Coopersville, New York; Isle La Motte. Vermont (Crown Point, Valcour); Mingan Islands, Canada (Mingan). 678 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. ISOTELUS HAERISI Raymond (part). See leotelus platymarginatus. Isotelus lowensls (Owen). Asaphus (Isotelus) iowensis Owen, Rep. Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, p. 577, tab. 2A, figs. 1-7. Lesley, Geol. Surv. Pennsylvania Rep., P 4, 1889, p. 41, figs. Isotelus iowensis Clarke, Geol. Minnesota, 3 pt., 2, 1894, p. 704. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 48, pi. 13, figs. 1, 2. Raymond, Bull. Mus. Comp. Zool., 58, 1914, p. 255, pi. 2, flg. 6; pi. 3, figs. 1, 2. Isotelus gigas Clarke (pait), Geol. Minnesota, 3, pt. 2, 1894, p. 703, fig. 5. Weller, Geol. Surv. New Jersey, Pal., 3, 1902, pi. 14, fig. 5. Richmond (Maquoketa): Turkey River, Clermont, and Elgin, Iowa. Cotypes.C&t. No. 17906, U.S.N.M. Isotelus jacobus Clarke. Isotelus gigas Hall (part), Pal. New York, 1, 1847, pi. 61, figs. 3g, 3b. Isotelus jacobus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 706, footnote. Trenton: Middleville, New York. Isotelus latus Raymond. Isotelus latus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 45, pi. 5. Asaphus platycephalus Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 184, text fig. 183; Cat. Sil. Foss. Anticosti, 1866, p. 24, fig. 7; Quait. Jour. Geol. Soc. London, 26, 1870, p. 486, pis. 31, 32. Isotelus gigas Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 293, fig. 1602. Trenton: Ottawa, Ontario. Isotelus longaevus Savage. Isotelus longsevus Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 103, pi. 6 fig., 15. Upper Medinan (Edgewood) : Near Edgewood, Illinois. Isotelus maximus Locke. Isotelus maximus Locke, 2d Ann. Rep. Geol. Surv. Ohio, 1838, p. 246, figs. 8, 9; Amer. Jour. Sci., 41, 1841, p. 161; Trans. Assec. Amer. Geol. and Nat., 1843, p. 14. Clarke, 10th Rep. State Geol. New York for 1890, 1891, p. 87; 44th Rep. New York State Mus., 1892, p. Ill; Geol. Minnesota, 3, pt. 2, 1894, p. 701, figs. 5-7; p. 706. Ruedemann, Bull. New York State Mus., 49, 1901, p. 59, pi. 4, fig. 1. Raymond and Narraway, Ann. Carnegie Mus., 7, 1910, p. 55, fig. 3 Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292, fig. 1603. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1060, pi. 55, fig. 1. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 47. Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 46, pi. 4, fig. 8; Bull. Mus. Comp. Zool., 58, 1914, p. 257. Asaphus maximus Clarke, 46th Rep. New York State Mus., 1893, p. 195; 12th Rep. State Geol. New York for 1892, 1894, p. 49. Asaphus (Isotelus) maximus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 233. Isotelus megistos Locke, Amei. Jour. Sci., 42, 1842, p. 366, pi. 3, fig.; Trans. Assoc. Amer. Geol., Nat., 1843, p. 221, pi. 6, fig. 1. Anon., Amer. Jour. Sci., 2d ser., 6, 1848, p. 431. Taylor, ibid., 10, 1850, p. 113. Asaphus megistos Chapman, Canadian Jour., n. s., 4, 1859, pp. 140, 142. Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 184, fig. 182; Cat. Sil. Foss. An- ticosti, Geol. Surv. Canada, 1866, pp. 26, 60. Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 89; mus ed., 1879, p. 89. Mickel- borough, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 200-206, figs. 1, 3 (2). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 679 Isotelus maxim us Continued. Walcott, Science, 3, 1884, p. 280, fig. 1. Woodward, Geol. Mag., 3, 1, 1884, p. k!62, figs. 1-3. Ford and Dwight, Amer. Jour. Sci., 3d ser., 31, 1886, p. 254, pi. 7, fig. 16. Miller, N. A. Geol. Pal., 1889, p. 531, fig. 968. Beecher, Amer. Jour. Sci., 4th ser., 13, 1902, p. 169, pi. 5, figs. 5, 6; Geol. Mag., dec. 4,, 9, 1902, p. 158, figs. 5, 6. Rowley, Missouri Bur. Geol. and Mines, 2d ser., 8, 1908, p. 58, pi. 15, fig. 3. Asaphus (Isotelus) megistos Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 159, pi. 14, fig. 13. Miller, Cincinnati Quart., Jour. Sci., 1, 1874, p. 137. Trenton-Richmond: Cincinnati, Ohio. Many localities in the United States and Canada. Plesiotype.C&t. No. 33458, U.S.N.M. (Mickelborough). Observation. The above citations, like those of I. gigas, probably refer to several species. Isotelus megalops Green. Isotelus megalops Green, Mon. Tril. N. Amer., 1832, p. 70, cast No. 25. Trenton: Near Trenton Falls, New York. Plastotype.Ca,t. No. 25694, U.S.N.M. ISOTELUS MEGISTOS Locke. See Isotelus maximus. ISOTELUS OBTUSA Raymond. See Onchometopus obtusus. ISOTELUS PLANUS DeKay. See Isotelus gigas. ISOTELUS PLATYCEPHALUS Bronn. See Isotelus gigas. Isotelus platymarginatus Raymond. Isotelus harrisi (part) Raymond, Ann. Carnegie Mus., 3, 1905, pi. 12, fig. 4. Isotelus platymaiginatus Raymond, Ann. Carnegie Mus., 7, 1910, p. 66, pi. 17, figs. 2-5; pi. 19, fig. 3; 7th Rep. Vermont State Geol., 1910, p. 225, pi. 34, fig. 4; pi. 37, figs. 2-5; pi. 39, fig. 3. Chazyan (Crown Point, Valcour): Valcour Island, New York; Isle La Motte, Vermont. ISOTELUS STEGOPS Green. See Isotelus gigas. ISOTELUS SUS.E Clarke. See Onchometopus susse. ISOTRYPA AMBIGUA Ulrich. See Loculipora ambigua. JAEKELOCYSTIS Schuchert. Genotype: J. hartley! Schuchert. Jaekelocystis Schuchert, Amer. Geol., 32, 1903, p. 230; Smiths. Misc. Coll., 47, 1904, p. 222. Jaekelocystis avellana Schuchert. Jaekelocystis avellana Schuchert, Smiths. Misc. Coll., 47, 1904, p. 226, pi. 37, figs. 11, 12, fig. 28; Maryland Geol. Surv., Low. Dev., p. 235, pi. 38, figs. 3, 4. Helderbergian (Keyser): Keyser, West Virginia. Holotype.C&t. No. 35056, U. S.N.M. Jaekelocystis hartley! Schuchert. Jaekelocystis hartley! Schuchert, Amer. Geol., 32, 1903, p. 231; Smiths. Misc. Coll., 47, pt. 2, 1904, p. 224, fig. 27, pi. 37, figs. 4-8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 468, fig. 1776. Schuchert, Maryland Geol. Surv., Low. Dev., 1913, p. 233, pi. 37, figs. 12-16. Helderbergian (Keyser): Keyser, West Virginia. Cotypes. Cat. No. 35055, U.S.N.M. 680 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Jaekelocystls papillatus Schuchert. Jaekelocystis papillatus Schuchert, Smiths. Misc. Coll., 47, 1904, p. 225, pi. 37, figs. 9, 10; Maryland Geol. Surv., Low. Pev., 1913, p. 234, pi. 38, figs. 1, 2. Helderbergian (Keyser): Keyser, West Virginia. Eolotype and paratype.Czt. No. 35057, U.S.N.M. JONESELLA Ulrich. Genotype: J. crepidiformis Ulrich. Jonesella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 121. Miller, N. A. Geol. Pal., 1st App., 1892, p. 708. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 667. Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 349. Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. JONESELLA CRASSA Ulrich. See CtenoboIhLna crassa. Jonesella crepidiformis (Ulrich). Leperditia crepiformis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 10, pi. 7, figs. 3, 3a. Jonesella crepidiformis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 122, pi. 7, figs. 8a-c; Geol. Minnesota, 3, pt. 3, 1894, p. 667. figs. 47a-c, Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349, figs. 1658a-c. Bassler, Zittel- Eastman Textb. Pal., 1913, p. 738, fig. 1425f. Eden (Economy): Covington, Kentucky, and vicinity. Cotypes.C&t. No. 41359, U.S.N.M. Jonesella digit ata Ulrich. Jonesella digitata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 122, pi. 7, figs. lOa-c. Richmond (Arnheim) : Marion County, Kentucky. Holotype.Czt. No. 41358, U.S.N.M. Jonesella obscura Ulrich. Jonesella obscura Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 668, pi. 44, figs. 17-19. Trenton (Prosser) : Cannon Falls, Minnesota. Cotypes.C*t. No. 41529, U.S.N.M. Jonesella pedigera Ulrich. Jonesella pedigera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 122, pi. 7, figs. 9a, 9b; Geol. Minnesota, 3, pt. 2, 1894, p. 667, figs. 47d, e. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349, figs. 1658d, e. Eden (Economy) : Covington, Kentucky, and vicinity. Holotype.Csit. No. 41360, U.S.N.M. JOVELLANIA Bayle. Genotype: Orthoceras buchi Verneuil. Jovellania Bayle, Bull. Soc. Geol. France, 3d ser., 7, 1879, p. 91. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 326; ibid., 2, 1891, p. 397. JOVELLANIA CAPITOLINUM Foord. See Actinoceras? cuvieri. Jovellania murrayi (Billings). Orthoceras murrayi Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 332. Jovellania murrayi Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 328, fig. 50. Black River: St. Joseph's Island, Lake Huron. Jovellania semiplanata (Whiteaves). Orthoceras semiplanatum Whiteaves, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 81, pi. 8, figs. 3, 3a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 681 Jovellania semiplanata Continued. Tripteroceras semtplanatum Whiteaves, Pal. FOBS., Geol. Surv. Canada, 3, pt. 3, 1897, p. 214. Jovellania semiplanata Whiteaves, Geol. Surv. Canada, Pal. Foes., 3, pt. 4, 1906, p. 345 (gen. ref.). Black River or Richmond: Lower Fort Garry, Manitoba. KIONELASMA Simpson. See LindstrSmia Nicholson and Thompson. KIONOCERAS Hyatt. Genotype: Orthoceras doricum Barrande. Kionoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 275. Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 469. Hyatt, Zittel-EastmanTextb. Pal., 1, 1900, p. 519; 2d ed., 1913, p. 600. Clarke and Ruedemann, Mem. New York State Mus., 5, p. 82. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 61. KIONOCERAS ANGULATUM Newell. See Kionoceras cancellatum. Eionoceras bellatulum (Billings). Orthoceras bellatulum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 58. Anticostian (Gun River and Jupiter River) : Three miles east Challoupe River, Anticosti. Kionoceras cancellatum (Hall). Orthoceras cancellatum Hall (not Eichwald), Pal. New York, 2, 1852, p. 292, pi. 63, figs. 1, 4a, b; pi. 65, figs. 4a, b. Orthoceras subcancellatum Hall in Miller, Amer. Pal. Foss., 1st ed., 1877, p. 245; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 323, pi. 33, fig. 5. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 559, fig. Kionoceras cancellatum Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 1904, p. 55; Geol. Surv. Canada, Pal. Fossils, 3, pt. 4, 1906, p. 264 (discusses synonymy). Orthoceras columnare Hall (not Marklin, 1857), Rep. Progr. Geol. Surv. Wiscon- sin, 1867, p. 4; 20th Rep. New York State Cab. Hist., 1868, p. 351, pi. 19, (10), figs. 4-8 (extras Jan., 1865); rev. ed. 1868 (1870), p. 411, pi. 19, figs. 4-6, 8. Kionoceras columnare Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 469. Orthoceras orus Hall in Miller, Amer. Pal. Foss., 1st ed., 1877, p. 245. Orthoceras (Kionoceras) orus Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 469, pi. 21, fig. 1; pi. 25, fig. 2. Kionoceras orus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 62, fig. 1266. Orthoceras Hoyi McChesney, Desc. New Fossils, 1861, p. 92. Orthoceias lineolatum McChesney, Desc. New Fossils, 1861, p. 93. Orthceras inegulare McChesney, Desc. New Fossils, 1861, p. 94. Orthoceras woodworthi McChesney, Plates Illust. New sp. Fossils, 1865, pi. 7, fig. 7; Trans. Chicago Acad. Sci., 1, 1868, p. 53, pi. 7, fig. 7. Orthoceias cadmus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 83. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 38. Orthoceras virgatum? Hall (not Sowerby), Pal. New York, 2, 1852, p. 298, pi. 63, figs. 2a, b, 3. Orthoceras scammoni McChesney, Desc. New Fossils, 1861, p. 92. Winch ell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 101. Hall, 20th Rep. New York State Cab. Hist., 1868, p. 381; rev. ed. 1868 (1870), p. 412, footnote. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 99. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 77. 682 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Kionoceras cancellatum Continued. Orthoceras angulatum Hall (not Wahlenberg, 1821), 20th Rep. New York State Cab. Hist., 1868, p. 353, pi. 19 (10), figs. 10, 11; rev. ed. 1868 (1870), p. 413, pi. 19, figs. 9-11; pi. 24, fig. ]. Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 504, pi. 24, figs. 8, 8a. Orthoceras (Kionoceras) angulatum Kindle and Bregei, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 472, pi. 21, fig. 3. Kionoceras angulatum Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 470. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 61, fig. 1265. Clinton-Guelph: Rochester and Lockport, New York; Ontario; Ohio; Indiana; Illinois; Wisconsin; etc. Observation. The name cancellatum and the above synonymy is held until a careful study of these cephalopods is made. Pleviotype.V&t. No. 52951, U.S.N.M. (Kindle and Breger). KIONOOERAS COLUMNARE Newell. See Kionoceras cancellatum. Kionoceras crawfordl (Foerste). Orthoceras (Kionoceras) crawfordi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 284, pi. 5, fig. 26; Geol. Surv. Ohio, Pal., 7, 1893, p. 546, pi. 30, fig. 26. Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio. Eionoceras darwinl (Billings). Orthoceras darwini Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 161 (adv. sheets, 1861). Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 38, pi. 6, figs. 2, 2a; ibid., pt. 2, 1895, p. 100. Foord, Cat. Foss. Ceph. B-itish Mus., 1, 1888, p. 76, fig. 8. Orthoceras (Kionoceras) darwini Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 811 (gen. ref.). Kionoceras darwini Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 84, pi. 10, fig. 22; pi. 11, fig. 6; pi. 12, figs. 1-8. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 62, fig. 1267. Cyrtoceras myrice Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 149, pi. 8, fig. 9. Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 39, pi. 6, figs. 3, 3a. Niagaran (Guelph): New Hope, Durham, etc., Ontario; Shelby and Rochester, New York; Yellow Springs, Ohio; Offley Island, Kennedy Channel, Arctic America. Eiouoceras delphiense (Kindle and Breger). Orthoceras (Kionoceras) delphiensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 470, pi. 20, figs. 1, 2. Niagaran: Delphi, Indiana. Kionoceras kentlandense (Kindle and Breger). Orthoceras (Kionoceras) kentlandensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 470, pi. 21, fig. 2. Niagaran: Kentland, Indiana. Kionoceras laqueatum (Hall). Orthoceras laqueatum Hall, Pal. New York, 1, 1847, p. 13, pi. 3, fig. 12; pi. 56, figs. 2a-c; ibid., var. a, p. 206, pi. 56, fig. 3. Emmons Amer. Geology, 1, pt. 2, 1855, p. 149. Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dept, 1879, p. 579. Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 16. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 552, figs. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 683 Klonoceras laqueatum Continued. Orthoceras (Kionoceras) laqueatum Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, p. 627 (gen. ref.). Canadian (Beekmantown) : New York. Eionoceras magnisulcatum (Billings). Orthoceras magni-sulcatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 330; Cat. Sil. FOBS. Anticosti, Geol. Surv. Canada, 1866, p. 23 (loc. ref.)- Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 212. Richmond: Charleton Point, Anticosti (Charleton); Lake Winnipeg, Canada. KIONOCERAS MEDULLARE Clarke and Ruedemann. See Protokionoceras medullare. KIONOCERAS ORUS Grabau and Shimer. See Kionoceras cancellatum. Kionoceras strix (Hall and Whitfield). Orthoceras strix Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 149, pi. 9, fig. 3. Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 76. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 558, fig. Kionoceras strix Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 469. Niagaran (Guelph): Yellow Springs, Ohio; Wabash, Indiana. KLITAMBONITES Pander. See Clitambonites Pander. KLCEDENELLA Ulrich and Bassler. Genotype: Klcedenia pennsylvanica Jones. Klcedenella Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 317. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 358. Bonnema, Kon. Akad. Wetensch. Amsterdam, 1914, p. 4. Klcedenella clarkel (Jones). Beyrichia clarkei Jones, Jour. Geol. Soc. London, 46, 1890, p. 17, fig. 2. Bollia clarkei Ulrich, Geol. Minnesota, 3, 1894, pt. 2, p. 669. Kloedenella clarkei Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 319; Maryland Geol. Surv., Low. Dev., 1913, p. 533, pi. 97, fig. 21. Helderbergian: Herkimer County, New York (Manlius transition); Cumberland, Maryland (JKeyser). Kloedericlhi clarkei paupera Ulrich and Bassler. Kloedenella clarkei paupera Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 43, fig. 5; Maryland Geol. Surv., Low. Dev., 1913, p. 534, pi. 98, figs. 1-3. Helderbergian (Keyser): Cumberland, Maryland. Holotype. Cat. No. 53280, U.S.N.M. Kloadenella halli (Jones). Beyrichia hallii Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 15, pi. 4, fig. 21. Bollia halli Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669 (gen. ref.). Kloedenella halli Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 319, fig. 62, pi. 43, fig. 4. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 359, fig. 1663q. Helderbergian (Manlius transition): Herkimer County, etc., New York. Kloedenella pennsylvanica (Jones). Kloadenia pennsylvanica Jones , Amer. Geol., 4, 1889, p. 341, pi., figs. 5a-d, 6 (not 7a, b, 8, 9). Kloedenella pennsylvanica Ulrich and Bassler, Proc. U. S. Nat. Mus., 1908, 35, p. 304, fig. 54; p. 318, pi. 43, figs. 1-3; Maryland Geol. Surv., Low. Dev., 1913, p. 533, pi. 97, figs. 18-21. Helderbergian: Perry County, Pennsylvania; Tonoloway, etc., Maryland, (Keyser). 684 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Kloedenella symmetrica (Hall). Beyrichia symmetrica Hall, Pal. New York, 2, 1852, p. 317, pi. 67, fig. 16. Bollia symmetrica Jones, Amer. Geol., 4, 1889, p. 339 (gen. ref.); Quart. Jour. Geol. Soc. London, 46, 1890, p. 12. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 657. Grabau, Bull. New York State Mus., 45, 1901, p. 219, fig. 151; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 219, fig. 151. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 319, fig. 61. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 352, fig. 1661. Bollia lata Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 12. Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario; Pennsyl- vania; Maryland. Kloedenella trisulcata (Hall). Beyrichia trisulcata Hall, Pal. New York, 3, 1859, p. 381. Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 14, pi. 1, fig. 2. Kloedenella trisulcata Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 318. Helderbergian (Manlius transition): Herkimer County, New York. Kloedenella turgida Ulrich and Bassler. Klcedenia pennsylvanica Jones (part), Amer. Geol., 4, 1889, p. 341, figs. 8, 9 (not figs. 5-7). Kloedenella turgida Ulrich and Bassler, Proc. U. S. Nat. Mue., 35, 1908, p. 318, pi. 43, figs. 6, 7; Maryland Geol. Surv., Low. Dev., 1913, p. 535, pi. 98, figs. 4-6. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 14251. Helderbergian (Keyser): Perry County, Pennsylvania; Cumberland, Maryland; Keyser, West Virginia. Cotypes.CB,t. No. 53278, U.S.N.M. Kloedenella turgida ventrosa Ulrich and Bassler. Kloedenia pennsylvanica Jones (part), Amer. Geol., 4, 1889, p. 341, figs. 7a, 7b (not figs. 5, 6, 8, 9). Kloedenella turgida ventrosa Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 43, fig. 8; Maryland Geol. Surv., Low. Dev., 1913, p. 535, pi. 98, fig. 7. Helderbergian (Keyser): Perry County, Pennsylvania; Cumberland, Maryland. Holotypes.CB,t. No. 53279, U.S.N.M. KLCEDENIA Jones and Holl. Genotype: Beyrichia wilckensiana Jones. Kloedenia Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 362. Krause, Zeits. d. d. geol. Gesell, 41, 1889, p. 21. Koken, Die Leitfossilien, Leipzig, 1896, p. 39, fig. 26A. Miller, N. A. Geol. Pal., 1st App., 1892, p. 708. Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 644. Ulrich and Bass- ler, Proc. U. S. Nat. Mus., 1908, p. 300. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355. Kloedenia barret ti (Weller). Beyrichia barretti Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 254, pi. 23, fig. 9. Klcedenia barretti Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301 (gen. ref.); Maryland Geol. Surv., Low. Dev., 1913, p. 532, pi. 97, fig. 17. Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Tonolo- way, Maryland (Keyser). Kloedenia centricornis Ulrich and Bassler. Klcedenia centricornis Ulrich and Bassler, Proc. U. S. Nat. Mus., 1908, 35, pi. 38, fig. 23; Maryland Geol. Surv., Low. Dev., 1913, p. 529, pi. 97, figs. 1-4. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425L Helderbergian (Keyser): Cumberland, Maryland. Holotype.C&t. No. 53305, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 685 Kloedenia flmbriata Ulrich and Bassler. Kloedenia fimbriata Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 38, fig. 22; Maryland Geol Surv., Low. Dev., 1913, p. 529, pi. 97, figs. 5-7. Helderbergian: Herkimer County, New York; Cumberland, Maryland (Keyser). Holotype.C&t. No. 53306, U.S.N.M. Kloedenia inltialis (Ulrich). Beyrichia initialis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 658, pi. 43, figs. 82, 83. Kloedenia initialis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301, pi. 38, figs. 12, 13. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p, 355, fig. 1663, e, f. Black River (Decorah): Minneapolis, Minnesota. Holotype. Cat. No. 41666, U.S.N.M. Kloedenia jerseyensis (Weller). Beyrichia jerseyensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 255, pi. 23, fig. 5. Kloedenia jerseyensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301. Helderbergian (Decker Ferry) : Two miles south of Tristates, New York. Kloedenia kokomoensis Foerste. Kloedenia kokomoensis Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, 1909, p. 32, pi. 1, figs. 3a-b. Cayugan (Kokomo): Kokomo, Indiana. Kloedenia kiimmeli (Weller). Beyrichia kiimmeli Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 266, pi. 24, fig. 21. Klcedenia kummeli Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301 (gen. ref.); Maryland Geol. Surv., Low. Dev., 1913, p. 531, pi. 97, fig. 16. Helderbergian: Two miles south of Tristates, New York ("Manlius"); Tonolo- way, Maryland (Keyser). Kloedenia manliensis (Weller). Beyrichia manliensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 268, pi. 23, fig. 10. Kloedenia manliensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301, pi. 38, fig. 21. Klcedenia manliusensis Clarke, Mem. New York State Mus., No. 9, pt. 2, 1909, p. 20. Helderbergian: Two miles South of Tristates, New York (Keyser-" Manlius"); Dalhousie, New Brunswick (Dalhousie). . No. 53941, U.S.N.M. Kloedenia manliensis deckerensis (Weller). Beyrichia deckerensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 256, pi. 23, fig. 11. Kloedenia manliensis deckerensis Ulrich and Bassler, Proc. U. S. Nat. Mus.. 35, 1908, p. 301. Helderbergian (Decker Ferry) : Two miles south of Tristates, New York. KLOEDENIA MANLIUSENSIS Clarke. See Kloedenia manliensis. Kloedenia monroensis Grabau. Kloedenia monroensis Grabau, Michigan Geol. Surv., Geol.. 1st ser., 1909, p. 206, pi. 15, fig. 11. Lower Monroan (Raisin River): Newport, Michigan. 686 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Klcedenta montaguensis (Weller). Beyrichia montaguensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 267, pi. 24, fig. 23. Klcedenia montaguensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301. Helderbergian ("Manlius"): Two miles south of Tristates, New York. Kloedenia nearpassi (Weller). Beyrichia nearpassi Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 255, pi. 23, figs. 7, 8. Kloedenia nearpassi Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301, p. 304, fig. 55, 56 (gen. ref.); Maryland Geol. Surv.., Low. Dev., 1913, p. 530, pi. 97, figs. 12, 13. Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Tonolo- way, Maryland (Keyser). Kloedenia no tat a (Hall). Beyrichia notata Hall, Pal. New York, 3, 1859, p. 379. Kloedenia notata Jones, Qi.art. Jour. Geol. Soc. London, 46, 1890, p. 13, pi. 4, figs. 22, 23. Helderbergian (Manlius transition) : Herkimer County and near Utica, New York. KLCEDENIA PENNSYLVANICA Jones. See Kloedenella pennsylvanica, K. turgida, and K. turgida ventrosa. Kloedenia prsemmtia Ulrich and Bassler. Klcedenia praenuntia Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301, pi. 38, fig. 15. Trenton (Hermitage): Four miles south of Carthage, Tennessee. Holotype. Cat. No. 41643, U.S.h.M. Kloedenia smocki (Weller). Beyrichia smocki Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 268, pi. 24, fig.24. Kloedenia smocki Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 302. Helderbergian ("Manlius"): Two miles south of Tristates, New York. Kloedenia sussexensls (Weller). Beyrichia sussexensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 253, pi. 23, figs. 3-4. Klcedenia sussexensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 302, pi. 38, figs. 19, 20; Maryland Geol. Surv., Low. Dev., 1913, p. 532, pi. 97, figs. 14, 15. Beyrichia perinflata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 254, pi. 23, fig. 6. Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Tonoloway, Maryland (Keyser); Dalhousie, New Brunswick (Dalhousie). Plexiotypes.Ca,t. No. 53940, U.S.N.M. Kloedenia wallpackensis (Weller). Beyrichia wallpackensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 266, pi. 24, fig. 22. Kloedenia wallpackensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 302. Helderbergian (" Manlius"): Two miles south of Tristates, New York. KOKENIA Ulrich and Scofield. See Kokenospira Bassler. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 687 KOKENOSPIRA Bossier (new name). Genotype: Bucanella esthona Koken. Bucanella Koken (part), Neues Jahrb. Min., Geol., Beilageband, 6, 1889, p. 389 (not Meek, 1870). Kokenia Ulrich and Scofield (not Holzapfel, 1895), Geol. Minnesota, 3, pt. 2, 1897, pp. 849-882. Kokenospira cos tails (Ulrich and Scofield). Kokenia costalis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 882, pi. 64, figs. 46-49. Schuchert, Proc. U. S. Nat. Mus., 1900, p. 164. Trenton: Near Cannon Falls, Minnesota (Prosser); Frobisher Bay, Baffin Land. Holotype.C&t. No. 45868, U.S.N.M. KRAUSELLA Ulrich. Genotype: K. insequalis Ulrich. Krausella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 691. Miller, N. A. Geol. Pal., 2d App., 1897, p. 788. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 362. Krausella antlcostlensls (Jones). Bairdia anticostiensis Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 548, pi. 21, figs. 3a, b. Krausella anticostiensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 691. Richmond (English Head, Charleton): English Head, etc., Anticosti. Kransella arcuata Ulrich. Krausella arcuata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 692, pi. 44, figs. 47-53. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.362,figs.l667a-c. Black River: Minneapolis, Minnesota; Mineral Point, Wisconsin; Dixon, Illinois (Platteville); High Bridge, Kentucky (Lowville). Cotypes. Cat. Nos. 41717-41719, U.S.N.M. Krausella in&qualis Ulrich. Krausella inaequalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 692, pi. 44, figs. 44, 46. Black River (Platteville): Dixon, Illinois. Holotype.C&t. No. 41727, U.S.N.M. KUTORGINA Hall and Clarke. See Billingsella Hall and Clarke. LABECHIA Edwards and Haime. Genotype: Monticularia conferta Lonsdale. Labechia Edwards and Haime, Mon. Polyp. Foss. Terr. Pal., 1851 (Arch. Mus. Hist. Nat., 5), pp. 155, 279. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 444. Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 284. Salter, Cat. Camb. Sil. Foss., 1873, p. 109. Lindstrom, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 4. Steinmann, Palaeontographica, 25, 1878, p. 112. Nicholson and Murie, Jour. Linnean Soc. London, Zool., 14, 1878, p. 234. Nicholson, Tab. Corals Pal. Period, 1879, p. 350. Zittel, Handb. Pal., 1, 1879, p. 287. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 541. Nicholson, Mon. British Strom., Pal. Soc., 1886, pp. 13, 19, 60. Waagen, Neues Jahrb. f. Min., Geol. Pal., 1, 1889, p. 259. Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 46. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 699- Parks, Univ. Toronto Studies, Geol. Ser., 5, 1908, p. 31;ibid., No. 7, 1910, p. 25. LABECHIA CANADENSB Nicholson. See Stromatocerium canadense. LABECHIA CORRUGATA Foerste. See Dermatostroma corrugatum. LABECHIA CORRUGATA-OLYPTA Foerste. See Dermatostroma glyptum. 688 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Labecnia delicatula Parks. Labechia delicatula Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 32, pi. 9, figs. 4-6 Clinton (Osgood) : Osgood, Indiana. CotypesC&t. No. 41218, U.S.N.M. Labechia durhamensis Parks. Labechia durhamensis Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 20, pi. 2, figs. 4-6; pi. 3, fig. 1; pi. 6, figs. 1, 2. Niagaran (Guelph): Durham, Guelph, etc., Ontario. LABECHIA HURONENSIS Whiteaves. See Stromatocerium huronense. Labechia macrostyla Parks. Labechia macrostyla Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910, p. 25, pi. 22, fig. 12; pi. 23, figs. 1, 2, 11. "Lower Trenton drift": Ann Arbor, Michigan. Holotype.G&t. No. 36929, U.S.N.M. Labechia mlnora Parks. Labechia minora Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 22, pi. 3, figs. 2, 5, 6. Niagaran (Guelph): Elora, Durham, etc., Ontario. LABECHIA MONTIFERA Ulrich. See Stromatocerium montiferum. LABECHIA OHIOENSIS Nicholson. See Stromatocerium huronense. LABECHIA PAPILLATA of authors. See Dermatostroma papillatum. LABECHIA SCABRA Harper and Bassler. See Dermatostroma scabrum. Labechia subcylindrica (James). Stromatopora subcylindrica James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 20, fig. 1. J. F. James, ibid., 9, 1887, pp. 39, 103, 251; ibid., 15, 1892, p. 90. Miller, N. A. Geol. Pal., 1889, p. 166. Labechia subcylindrica Parks, Univ. Toronto Studies, Geol. Series, No. 7, 1910, p. 27, pi. 23, figs. 3, 4, 6, 7. Richmond ( Waynesville) : Near Morrow, Ohio. LABTRINTHITES Lambe. Genotype: L. chidlensis Lambe. Labyrinthites Lambe, Cruise of the " Neptune," App. 4, 1906, p. 327. Labyrinthites chidlensis Lambe. Labyrinthites chidlensis Lambe, Cruise of the "Neptune," App. 4, 1906, p. 328. Ordovician?: Cape Chidley, Hudson Strait, Arctic America. LACCOPHYLLUM Simpson. Genotype: L. acuminatum Simpson. Laccophyllum Simpson, Bull. New York State Mus., 39, 1900, p. 201. Laccophyllum acuminatum Simpson. Laccophyllum acuminatum Simpson, Bull. New York State Mus., 39, 1900, p. 202, figs. 7-9. Niagaran (Brownsport): Perry County, Tennessee. LAGENOGRAPTUS Hall. See Monograptus Geinitz . LAMELLOPORA Owen. See Strombodes Schweigger. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 689 LAMPTEROCRINUS Roemer. Genotype: L. tenneseeensis Roemer. Balanocrinites Troost (not Agaseiz, 1845), Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 50 (not denned); Amer. Jour. Sci. and Arts, (2) 8, 1847, p. 419. Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 31. Balanocrinus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 1879, p. 131. Lampterocrinus Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 40. Hall, Trans. Albany Inst., 4, 1863, p. 202. Hall, 20th Rep. New York State Cab. Nat. Hist, (extras 1865), 1868, p. 328; ibid., rev. ed., 1870, footnote, p. 372. Zittel, Handb. d. Pal., 1, 1879, p. 375. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, pp. *358, 373 (Rev. Pal., pt. 2, pp. 184, 199); ibid., 1885, p. 323. Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 260. De Loriol, Pal. Francaise, 11, 3882, p. 59. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 207. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 199, fig. 124. Wachs- muth, Zittel-Eastman Textb. Pal., 1, 1900, p. 145. Weller, Bull. Chicago Acad. Sci., 4, pt. 1, 1900, p. 80, fig. 39. Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 102. Zittel, Grundzuge Pal., 2, 1910, p. 161. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 548. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 187. Lampterocrinus? comptus Rowley. Lampterocrinus? comptus Rowley, Amer. Geol., 34, 1904, p. 279, pi. 16, figs. 57, 58. Upper Medinan (Edge wood) : Three miles west of Louisiana, Missouri. Lampterocrinus? dubius Weller. Lampterocrinus? dubius Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 84, pi. 2, figs. 6, 7. Niagaran (Racine): Lemont and Joliet, Illinois. Lampterocrinus inflatus (Hall). Balanocrinus inflatus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 22. Lampterocrinus inflattia Hall, Prelim. Notice, 18th Rep. New York State Cab. Nat. Hist., 1865, p. 24, pi. 1, fig. 6; 20th Rep. New York State Cab. Nat. Hist., 1868 (extras 1865), p. 328, pi. 10 (1), fig. 6; rev. ed., p. 374, pi. 10, fig. 6. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 81, figs. 2-3. Niagaran (Racine): Racine, Wisconsin; Bridgeport and Romeo, Illinois. Lampterocrinus parvus Hall. Lampterocrinus parvus Hall, llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 272, pi. 15, fig. 6; Trans. Albany Inst., 10, 1883, p. 65. Niagaran (Waldron): Waldron, Indiana. Lampterocrinus robustus Weller. Lampterocrinus robustus Weller, Bull. Chicago Acad. Sci., Nat.. Hist. Surv., 4, pt. 1, 1900, p. 83, pi. 2, figs. 4, 5. Niagaran (Racine) : Romeo, Lemont, and Joliet, Illinois. Lampterocrinus? subglobosus Weller. Lampterocrinus? subglobosus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 83, pi. 3, fig. 5. Niagaran (Racine): Bridgeport and Hawthorne, Illinois. 84243 Bull. 9215 14 690 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Lampterocrinus tennesseensls Roemar. Lampterocrinus tennesseensis Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 37, pi. 4, figs, la, Ib; Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 11, fig. 13. Miller, N. A. Geol. Pal., 1889, p. 257, fig. 347. Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 208, pi. 13, figs. 10a-d. Bather, Treatise on Zoology, pt. 3, Echinoderma, 1900, p. 199, fig. 124. Foerste, Jour. Geol., 11, 1903, p. 712 (loc. occ.). Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 103, pi. 7, figs. 8-10. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 548, fig. 1877. Balanocrinites sculptus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1850, p. 419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.). Niagaran (Brownsport) : Decatur and Wayne Counties, Tennessee. Pleziotypes. Cat. No. 39920, U.S.N.M. (Troost's type of B. sculptus). LAPWORTHURA CYLINDRICA Parks. See Tgeniaster cylindricus. LASIOCRINUS Kirk. Genotype: Homocrinus scoparius Hall. Homocrinus Hall (part), Pal. New York, 2, 1852, p. 185; ibid., 3, 1859, p. 102. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, Rev. Pal., pt. 1, 1879; ibid., 1886, p. 77; pt. 3, p. 220. Bather, Crin. Gotland, 1893, p. 101. Lasiocrinus Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 482. Lasiocrinus scoparius (Hall). Homocrinus scoparius Hall, Pal. New York, 3, 1859, p. 102, pi. 1, figs. 1-9. Bather, Kongl. Svenska Vet. Akad. Handl., 25, 1893, p. 105. Talbot, Amer. Jour. Sci., 20, 1905, p. 19, pi. 3, fig. 3. Dendrocrinus (Homocrinus) ecoparius Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 302 (Rev. Pal., 1, p. 79). Lasiocrinus scoparius Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 482. Helderbergian (Manlius transition beds or Coeymans) : Schoharie and Wheelocks Hill, Litchfield, Herkimer County, New York. LASIOGRAPTUS Lapworth. Genotype: L. costatus Lap worth. Lasiograptus Lapworth, Geol. Mag., 10, 1873, p. 559. Zittel, Handb. Pal., 1, 1879, p. 302. Koken, Die Leitfossilien, Leipzig, 1896, p. 329. Roemer and Freeh, Leth. geog., 1, Theil, Leth. Pal., 1, 3, Lief, 1897, p. 671. Ruedemann, Mem. New York State MUB., 11, pt. 2, 1908, pp. 472-479. Lasiograptus bimucronatus (Nicholson). Graptolithus ep. Hall, Pal. New York, 3, 1859, p. 507, figs. 1-3. Diplograptus bimucronatus Nicholson, Ann. Mag. Nat. Hist., 4, 1869, p. 236, pi. 11, fig. 12. Clarke, Geol. Mag., 4th ser., 9, 1902, p. 499. Hallograptus bimucronatus Lapworth, Cat. West. Scott. FOBS., 1876, p. 7, pi. 2, fig. 58. Hallograptus (Lasiograptus) bimucronatus Roemer and Freeh, Leth. Pal., 1, 1897, p. 672, fig. 224. Diplograptus (Hallograptus) bimucronatus Lapworth, Belfast Field Club, Ann. Rep. and Proc., 2d ser., app., pt. 4, 1877, p. 134, pi. 6, fig. 23. Lasiograptus bimucronatus Tullberg, Sver. Geol. Und. Ser. C, No. 50, 1382, p. 20. Lasiograptus mucronatus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887, p. 178. Gurley, Jour. Geol., 4, 1896, p. 299. Roemer and Freeh, Leth. Pal., 1, 1897, p. 672, fig. 224. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 481-483, pi. 29, figs. 12-18; pi. 30, figs. 6-8; pi. 31, figs. 4-5; text figs. 458-463. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 691 Laslograptus btmucronatus Continued. Grap toll thus whitfieldi (part) Hall, Geol. Surv. Canada, Canadian Org. Eem., dec. 2, 1865, pi. B, figs. 6-11. Ordovician: Scotland (Glenkiln); Wales; Ireland; Scania; Kenwood, Stockport, etc., New York (Normanskill) ; Arkansas. Laslograptus bimucronatus timldus Ruedemann. Lasiograptus bimucronatus mut. timidus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 483-484, pi. 29, figs. 19, 20; text figs. 464, 465. Utica: Flat Creek, near Mohawk, and Holland Patent, New York; Cincinnati, Ohio. Laslograptus (Thysanograptus) eucharls (Hall). Retiograptus eucharis Hall, Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p. 146, pi. 14, fig. 9; New York State Cab. Nat. Hist., 20th Ann. Rep., 1868, pp. 206, 224, pi. 4, fig. 9. Walcott, Trans. Alb. Inst., 10, 1881 (adv. sheets, 1879, p. 35). Ami, Can. Geol. Surv. Ann. Rep., pt. 11, 1889, pp. 23K, 117K; Can. Rec. Sci., 5, 1893, pp. 180, 236. Roemer and Freeh, Leth. geog., ITheil., Leth. Pennsylvania, 1, 3 Lief., 1897, p. 608, fig. 173. Retiograpsus eucharis Nicholson, Mon. British Grapt., 1872, p. 124, fig. 63. Glossograptus? eucharis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 397-400, pi. 26, figs. 18, 19; pi. 27, figs. 11-13, text figs. 346-352. Diplograptus pristiniformis Ruedemann, Amer. Jour. Sci., 3d ser., 18, 1895, pp. 453, 455, figs. 2, 3. Wiman, Bull. Geol. Inst. Upsala, 2, pt. 2, 1895, pp. 69, 71, figs. 2, 3. Diplograptus ruedemanni Gurley, Jour. Geol., 4, 1896, pp. 298, 307. Ruedemann, 14th Rep. State Geol. New York for 1894, 1897, p. 219, pi. 1, figs. 2-4, 6-7, 10; pi. 2, figs. 1-4; pi. 5, fig. 1. Tornquist, Zoolog.Centralbl., 4, 1897, p. 5. Ruedemann, Bull. New York State Mus., 42, 1901, p. 523 ff. Diplograptus cf. aculeatus Freeh, Roemer and Freeh, Leth. Pal., 1, 1897, p. 632, pl. A, fig. 2. Lasiograptus (Thysanograptus) eucharis Ruedemann, Bull. New York State Mus., 162, 1912, p. 84, figs. 24-28. Trenton: Lake St. John, etc., Quebec (Collingwood); Vermont; Mohawk and Hudson Valleys, New York (Snake Hill, Canajoharie, and Schenectady). Laslograptus mucronatus (Hall). Graptolithus mucronatus Hall, Pal. New York, 1, 1847, p. 268, pl. 73, figs. la-d. Diplograptus mucronatus Geinitz, Die Graptolithen, 1852, p. 23. Carruthers, Mem. Geol. Surv., 3, 1866, 330, pl. 11A, fig. 6; pl. 12, fig. 1; ibid. 5, 1868, p. 131, pl. 5, fig. 2. Nicholson, Geol. Mag., 4, 113, pl, 7, figs. 5, 5a; Quart. Jour. Geol. Soc. London, 24, 1868, p. 139. McCoy, Pal. Victoria, Prodr., dec. 1, 1874, p. 10, pl. 1, fig. 5. Walcott, Trans. Alb. Inst., 10, 1883 (adv. sheets, 1879, p. 34). Ami, Can. Geol. Surv. Rep., 2d ser., 3, pt. 2, 1889, p. 117K. Walcott, Bull. Geol. Soc. Am., 1, 1890, p. 339. Clark, Geol. Mag., 4th ser., 9, 1902, p. 498. Diplograptus (Lasiograptus) mucronatus Lapworth, Belfast Nat. Field Club Ann. Rep., 1, 1877, p. 134, pl. 6. Lasiograptus mucronatus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887, 178f. Gurley, Geol. Surv. Arkansas, Ann. Rep., 3, 1892, p. 413. Ruedemann Bull. New York State Mus., 42, 1901, p. 544. Weller, Geol. Surv. New Jersey, Pal., 3, 1902, p. 212, pl. 16, figs. 16, 17. Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 479-481, pl. 29, figs. 9-il; pl. 30, figs. 1-5; pl. 31, figs. 1-3; figs. 456, 457. Chazyan (Normanskill): Mt. Moreno, Kenwood, Glenmont, etc., New York; Arkansas; Quebec. Glenkiln shale of Great Britain. 692 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. LASIOGRAPTUS MUCRONATUS Lapworth. See Lasiograptus bimucronatus. LASIOTHRIX Dawson and Hinde. Genotype: L. curvicostata Dawson and Hinde. Lasiothrix Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 50. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 114. Miller, N. A. Geol. Pal., 1st App., 1892, p. 667. Lasiothrix curvicostata Dawson and Hinde. Lasiothrix curvicostata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 51, fig. 21. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 144, fig. 24. Canadian? (Levis?): Metis, Quebec. Lasiothrix flabellata Dawson and Hinde. Lasiothrix flabellata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 51, fig. 22. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 115, fig. 25. Canadian? (Levis?): Metis, Quebec. LECANOCRINUS Hall. Genotype: L. macropetalus Hall. Lecanocrinus Hall, Pal. New York, 2, 1852, p. 199. Pictet, Traite de Pal., 2d ed., 4, 1857, p. 319. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 278. Schultze, Denk. d. Kais. Akad. Wiss., Math.-Naturw., Cl. 26, Abth. 2, 1867, p. 152, fig. 7. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1879, p. 262 (Rev. Pal., pt. 1, p. 39); ibid., 1890, p. 388. Beyrich, Ann. Mag. Nat. Hist., 4th ser., 7, 1871, p. 404. Angelin, Icon. Crinoid., 1878, p. 11. Zittel, Handb. Pal., 1, 1879, p. 355. Miller, N. A. Geol. Pal., 1889, p. 257. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 147, fig. 54. Bather, Treatise on Zool , pt. 3, Echinoderma, London, 1900, p. 188. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 163. Grabau, Bull. New York State Mus., 45, 1901, p. 160; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 160. Springer, Amer. Geol., 30, 1902, p. 94; Jour. Geol., 14, 1906, p. 517. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 564. Springer, Zittell-Eastman Textb. Pal., 2d ed., 1913, p. 203. Cyrtidocrinus Angelin Icon. Crin. Suec., 1878, p. 20. LECANOCRINUS CALICULUS Hall. See Pycnosaccus calyculus. LECANOCRINUS ELEQANS Billings. See Protaxocrinus elegans. LECANOCRINUS EXCAVATUS Ringueberg. See Asaphocrinus ornatus. LECANOCRINUS GREENEI Miller and Gurley. See Anisocrinus greenei. Lecanocrinus hemisphericus Rowley. Lecanocrinus hemisphericus Rowley, Amer. Geol., 34, 1904, p. 271, pi. 14, fig. 17-19. Niagaran (Bainbridge) : Near St. Mary's, Ste. Genevieve County, Missouri. Observation. Probably the same as L. pisiformis (Roemer). LECANOCRINUS INCISUS Ringueberg. See Asaphocrinus incisus. LECANOCRINUS LJEVIS Billings. See Protaxocrinus leevis. Lecanocrinus macropetalus Hall. Lecanocrinus macropetalus Hall, Pal. New York, 2, 1852, p. 199, pi. 45, figs, la-h. Emmons, Man. Geology, 1860, p. 63, fig. 42. Miller, N. A. Geol. Pal., 1889, p. 257, fig. 348. Grabau, Bull. New York State Mus., 45, 1901, p. 160, fig. 55; Bull. Buffalo Soc. Nat, Sci., 7, p. 160, fig. 55. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 564, fig. 1901, 1902. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 693 Lecanocrinus macropetalus Continued. Cyathocrinus? Hall, Geol. 4th Disk New York, Tab. Org. Rem., No. 21, 1843, figs. 5a-b. Clinton (Rochester): Lockport, New York. Lecanocrinus meniscus Springer. Lecanocrinus meniscus Springer, Mono. Crin. Flex., Smith. Inst. (in press). Niagaran (Brownsport): Decatur County, Tennessee. LECANOCRINUS NITIDUS Ringueberg. See Asaphocrinus ornatue. LECANOCRINUS ORNATUS Hall. See Asaphocrinus ornatus. LECANOCRINUS OSWEGOENSIS Miller and Gurley. See Anisocrinus oswegoensis. Lecanocrinus pisiformls (Roemer). Poteriocrinus pisiformis Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 54, pi. 4, figs. 7a-d. Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 392. Arachnocrinus pisiformis Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 177 (gen. ref.). Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, Rev. Pal., pt. 1, 1879, p. 94. Miller, N. A. Geol. Pal., 1889, p. 224, fig. 248. Cyathocrinus pisiformis Whitfield, Geol. Wisconsin, 4, 1882, p. 353 (gen. ref.). Lecanocrinus pisiformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- delphia, 1886, p. 268 (Rev. Pal., pt. 2, 227). Niagaran: Decatur County, Tennessee (Brownsport); ?Wisconsin (Racine). Observation. See also L. hemisphericus Rowley. Lecanocrinus pusillus (Hall). Cyathocrinus pusillus Hall, Trans. Albany Inst., 4, 1863, p. 200; Prelim. Notice, 18th Rep. New York State Cab. Nat. Hist., 1865, p. 20; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 324, rev. ed., 1870, p. 366; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 15, figs. 1-6. Lecanocrinus pusillus Hall, 28th Rep. New York State Mus. Nat Hist., mus. ed., 1879, p. 136, pi. 15, figs. 1-6; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 267, pi. 14, figs. 1-6; pi. 15, fig. 7. Springer, Mono. Crin. Flex., Smith. Inst. (in press). Lecanocrinus tennesseensie Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892, p. 651, pi. 7, figs. 7, 8 (adv. sheets, 1891, p. 41). Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee. LECANOCRINUS PUSILLUS Winchell and Marcy. See Lecanocrinus waukoma. Lecanocrinus puteolus Ringueberg. Lecanocrinus puteolus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 11, pi. 1, fig. 8. Clinton (Rochester): Lockport, New York. LECANOCRINUS SIMPLEX Hall. See Ichthyocrinus Isevis. Lecanocrinus solidus Ringueberg. Lecanocrinus solidus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 8, pi. I, fig- 4. Clinton (Rochester): Lockport, New York. LECANOCRINUS TENNESSEENSIS Miller. See Lecanocrinus pusillus. Lecanocrinus waukoma (Hall). Cyathocrinus waukoma Hall, Adv. Pub. 18th Rep. New York State Cab. Nat. Hist., 1865, p. 20, pi (2), figs. 11, 12; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 324, pi. 11 (2), figs. 11, 12; rev. ed., 1870, p. 367, pi. 11, figs. II, 12. Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. 694 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Lecanocrinus waukom a Continued. Lecanocrinus waukoma Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 148, pi. 15, figs. 6-11. Lecanocrinus pusillus Winchell and Marcy (not Hall), Mem. Boston Soc. Nat. Hist., 1, 1865, p. 90. Niagaran (Racine): Racine and Waukesha, Wisconsin; Bridgeport, Romeo, Lemont, etc., Illinois. LEDA LEVATA Emmons. See Ctenodonta levata. LED A PLAN A Emmons. See Lyrodesma planum. LEDA PULCHELLA Emmons. See Ctenodonta pulchella. LEIOCLEMA Rominger. See Lioclema Ulrich. LEIOCLEMA FLORIDA Ulrich. See Nicholsonella florida. LEIOCLEMA? LAMINATUM Ulrich. See Fistulipora laminata. LEIOCLEMA SINGULARS Ulrich. See Trematopora? singularis. LEIODITIA Ulrich. See Elpe Barrande. LEIOPTERIA Hall. Genotype: L. dekayi Hall. Leiopteria Hall, Pal. New York, 5, pt. 1, Lam. 1883, p. 4; ibid., 1884, p. 13; 35th Rep. New York State Mus. Nat. Hist., 1884, p. 406; Rep. State Geol. New York, 1884, p. 14. Whidborne, Mon. Dev. Fauna South England, 2, Pal. Soc., 1892, p. 78. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 246. Hind, Mon. British Carb. Lam., 2, Pal. Soc., 1901, p. 9. Liopteria Miller, N. A. Geol. Pal., 1889, p. 484. Clarke, Archives Mus. Nat. Rio Janeiro, 10, Eng. ed., 1900, p. 48. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208; Bull. New York State Mus. 45, 1901, p. 208. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 424. Leiopteria rubra Williams. Leiopteria rubra Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 345, pi. 31, fig. 4. Silurian (Pembroke): Giffs Bay, Washington County, Maine. Holotype. Cat. No. 58971, U.S.N.M. Leiopteria subplana (Hall). Avicula subplana Hall, Pal. New York, 2, 1852, p. 283, pi. 59, figs. 3a-c. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 823, fig. 628. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 70, fig. Pterinea subplana Billings, Cat. Sil. FOBS. Anticosti, Geol. Surv. Canada, 1866, p. 52 (gen. ref.). Pteronites? subplana Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 243, pi. 22, fig. 1. Liopteria(?) subplana Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208, fig. 136; Bull. New York State Mus., 45, 1901, p. 208, fig. 136. Leiopteria? subplana Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 424, fig. 554. Silurian: Lockport, etc. (Rochester-Guelph) and Schoharie Valley, New York (Cobleskill). ?Helderbergian (Keyser): Two miles south Tristates, New York. LEIOSTEGIUM Raymond. Genotype: Bathyurus quadratus Billings. Leiostegium Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 68. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 695 Lelostegium brevlceps (Billings). Bathyurus breviceps Billings, Pal. Foes., 1, Geol. Surv. Canada, 1865, p. 262, fig. 246. Leiostegium breviceps Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. G9. Chazyan (Quebec N): Table Head, Newfoundland. Leiostegium quadra turn (Billings). Bathyurue quadratus Billings, Canadian Nat. Geol., 5, 1860, p. 321, fig. 27; Geol. Canada, Geol. Surv. Canada, 1863, p. 238, fig. 272; Pal. Foss., 1, Geol. Surv, Canada, 1865, p. 412, fig. 396. Leiostegium quadratum Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 68, pi. 7, fig. 17. Canadian (Levis-Limestone): Point Levis, Quebec. LEJOPYGE Hawle and Corda. Genotype: Battua laevigatus Hisinger. Lejopyge Hawle and Corda Abh. bohm. Gesell. Wise., 5, 1847, p. 51, pi. 3, fig. 25. Lejopyge cyclopyge? (Tullberg). Agnostus cyclopyge Tullberg, Sveriges Geol. Undersok., eer. C, No. 42, 1880, p. 26, pi. 2, fig. 15. Agnoetus cf. cyclopyge Matthew, Geol. Surv. Canada, Rep. Camb. Rocks C. Breton, 1903, p. 222. Canadian (Bretonian Div. C3b) : East Bay, east of Bras d 'Or Lake, Cape Breton, Nova Scotia. Lower Ordovician of Europe. LEPADOCEINUS Cunnings. See Lepadocystis Carpenter. LBPADOCRINUS Hall (part). See Lepocrinites Conrad and Apiocystites Forbes. LEPA.DOCRINUS MOOREI Cumings. See Lepadocystis moorei. LEPADOCTSTIS Carpenter. Genotype: Lepocrinites moorei Meek. Lepadocystis Carpenter, Linn. Soc. Jour. Zool., 24, 1891, p. 10. Bather, Treatise on Zoology, pt. 3, Echinoderma, 1900, p. 61. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 458. Lepadocrinus Zittel (part), Handb. Pal., 1, 1879, p. 421. Miller (part), N. A. Geol. Pal., 1889, p. 257. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 714. Meekocystis Jaekel, Stammesges. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 277. (Genotype: Lepocrinites moorei Meek.) LEPADOCYSTIS CLINTONENSIS Parks. See Brockocystis clintonensis. Lepadocystis moorei (Meek). Lepocrinites moorei Meek, Amer. Jour. Sci., 3d ser., 2, 1871, p. 296; Geol. Surv. Ohio, Pal., 1, 1873, p. 39, pi. 3, figs. 4a-c. Lepadocystis moorei Carpenter, Linn. Soc. Jour. Zool., 24, 1891, 10. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 61, fig. 28. Foerste, Bull. Sci. Lab. Denison UniV., 17, 1914, p. 459, pi. 5, fig. 1. Meekocystis moorei Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 278, fig. 58, p. 279. Lepadocrinus moorei Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 727, pi. 4, figs. 6-6b. Richmond (Whitewater): Richmond, Indiana. 696 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. LEPERDITELLA Ulrich. Genotype: Leperditia inflata Ulrich. Leperditia (part) Ulrich, Amer. Geol., 10, 1892, p. 263. Leperditella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636; Zittel-Eastman Textb. Pal., 1, 1900, p. 643. Bassler, ibid., 2d ed., 1913, p. 737. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 339." Leperditella sequilatera (Ulrich). Leperditia sequilatera Ulrich, Amer. Geol., 10, 1892, p. 265, pi. 9, figs. 9-11. Leperditella sequilatera Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46c. Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky. Holotype: Cat. No. 41312, U.S.N.M. Leperditella canalis Ulrich. Leperditella canalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637, pi. 43, figs. 1-3. Leperditia canalis Miller, N. A. Geol. Pal., 2d App., 1897, p. 788. Black River (Platteville): Minneapolis and near Cannon Falls, Minnesota. Holotype. Cat. No. 41304, U.S.N.M. LEPERDITELLA? DORSICORNIS Ulrich. See Primitia dorsicornis. Leperditella germana (Ulrich). Leperditia germana Ulrich, Amer. Geol., 10, 1892, p. 266, pi. 9, figs. 16-18. Leperditella germana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, pp. 636, 638, pi. 45, figs. 24-26. Black River (Platteville): Mineral Point, Wisconsin. Holotype. Cat. No. 41307, U.S.N.M. Leperditella? glabra (Ulrich). Primitia glabra Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 134, pi. 10, figs. 9a-9c. Leperditella? glabra Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 639. Richmond (Whitewater): Oxford and Blanch ester, Ohio; Richmond, Indiana. Holotype. C&t. No. 41827, U.S.N.M. Leperditella inflata (Ulrich). Leperditia inflata Ulrich, Amer. Geol., 10, 1892, p. 265, pi. 9, figs. 12-15. Leperditella inflata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, figs. 46a-46d. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 339, fig. 1656a-c. Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky. Cotypes. Cat. No. 41311, U.S.N.M. Leperditella? labellosa (Jones). Isochilina labellosa Jones, Cont. Canadian Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 69, pi. 10, figs. 16a-c, 17, 19. Leperditella? labellosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637. Stones River (Pamelia): Aylmer, Quebec ; Gloucester, Carle ton County, Ontario. Leperditella macra Ulrich. Leperditella macra Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 638, pi. 43, figs. 7-9. Leperditia macra Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.). Black River (Decorah): Minneapolis, Minnesota. Holotype. C&t. No. 41306, U.S.N.M. Leperditella mundula (Ulrich). Leperditia mundula Ulrich, Amer. Geol., 10, 1892, p. 265, pi. 9, figs. 4-8. Leperditella mundula Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46e-46h. Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky. Cotypes. Cat. No. 41309, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 697 Leperditella? obscura (Jones). Leperditia? obscura Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 71, pi. 10, figs. 15a-c. Leperditella? obscura Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637. Trenton: Falls of Lorette, Quebec. Leperditella ornata Weller. Leperditella ornata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 209, pi. 13, figs. 13-15. Trenton: Near Iliff's Pond, two miles southeast of Newton, New Jersey. Leperditella persimllls Ulrich. Leperditella persimilis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637, pi. 43, figs. 4-6. Leperditia persimilis Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.). Black River (Decorah): Minneapolis, Minnesota. Holotype.Czt. No. 41308, U.S.N.M. Leperditella sulcata (Ulrich). Leperditia sulcata Ulrich, Amer. Geol., 10, 1892, p. 266, pi. 9, figs. 19-21. Leperditella sulcata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46j. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, fig. 14. Black River (Lowville) : High Bridge,, Kentucky; Tennessee; Virginia. Holotype.Csit. No. 41313, U.S.N.M. Leperditella sulcata ventricornis Ulrich. Leperditella sulcata var. ventricornis Ulrich, Amer. Geol., 10, 1892, p. 266, pi. 9, figs. 22, 23; Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46k. Black River (Lowville): High Bridge, Kentucky. HolotypeCa.t. No. 41314, U.S.N.M. Leperditella tumid a (Ulrich). Leperditia tumida Ulrich, Amer. Geol., 10, 1892, p. 264, pi. 9, figs. 1-3. Leperditella tumida Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, fig. 13. Black River (Lowville) : High Bridge, Kentucky; Tennessee; Virginia. HolotypeCat. No. 41310, U.S.N.M. LEPERDITIA Rouault. Genotype: L. brittanica Rouault. Leperditia Rouault, Bull. Soc. Geol. France, 2d ser., 8, 1851, p. 377. Jones. Ann. Mag. Nat. Hist., 2d ser., 1856, p. 84; Monthly Microsc. Jour., 4, 1870, pp. 188-190. Barrande, Syst. Sil. du Centre Boheme, 1 Suppl., 1872, p. 523. Schmidt, Mem. PAcad. Imp. Sci. St. Petersburg, 21, 1873. Miller, Cincin- nati Quart. Jour. Sci., 1, 1874, p. 121. Alth, Anhandl. geol. Reichsanstalt, 7, Heft 1, 1874, p. 66. Nicholson and Lydecker, Man. Pal., 1, 1879, p. 506. Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 334. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 31, 1883. Vine, Proc. Yorkshire Geol. Polyt. Soc., n. s., 8, 1884, p. 234. Zittel, Handb. Pal., 2, 1885, p. 551. Jones and Kirkby, Proc. Geol. Assoc., 9, 1887, p. 503. Nicholson and Lydecker, Man. Pal., 1, 1879, p. 506. Miller, N. A. Geol. Pal., 1889, p. 552 Vogdes, Ann. New York Acad. Sci., 5, 1889, p. 23, pi. 2, fig. 17. Miller, N. A. Geol. Pal., 1st App., 1892, p. 708. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 633. Koken, Die Leitfossilien, 1896, p. 40. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, p. 307; ibid., 7, 1901, p. 218. Ulrich, Zittel's Textb. Pal. (Amer. ed.), 1900, p. 643. Grabau, Bull. New York State Mus., 45, 1901, p. 218. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1041. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 339. Bassler, Zittel-Eastman Textb. Pal., 2ded. ; 191b, p. 737. 698 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. LEPERDITIA JEQUELATERA Ulrich. See Leperditella sequilatera. Leperditia alta (Conrad). Cytherina alta Conrad in Vanuxem, Nat. Hist. New York, GeoL, 3, 1842, p. 112, fig. 6. Mather, GeoL, New York, 1, 1843, p. 349, fig. 6. Hall, ibid., 4, 1843, p. 142, fig. 6; tab. ill. 26, fig. 6. Owen, Amer. Jour. Sci. Arts, 2d ser., 1, 1846, p. 47, fig. 6. Emmons, Man. Geol., 1860, p. 113, fig. 102. Lincklaen, 14th Hep. New York State Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 6. Leperditia alta Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 88, pi. 7, figs. 6, 7; ibid., 3d ser., 1, 1858, p. 250, pi. 10, figs. 8, 9; Geol. Surv. Canada, dec. 3, p. 95. Hall, Pal. New York, 3, 1859, p. 373, pi. 79a, figs. 6a-e. Emerson(?) Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879, p. 579, fig. 5. Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 345. Whitfield, Geol. Wis- consin, 4, 1882, p. 323, pi. 25, figs. 8, 9. Chamberlin, Geol. Wisconsin, 1, 1883, p. 198, fig. Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 342; Quart. Jour. Geol. Soc. London, 44, 1890, p. 25, pi. 1, figs. 6a, b; Cont. Micro- Pal., Geol. Surv. Canada, pt. 3, 1891, p. 84, pi. 13, figs. 10, 11. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, pp. 259, 265, pi. 24, figs. 25-28. Grabau, Bull. New York State Mus., 92, 1906, p. 115, fig. 24a. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 341. Cayugan and Helderbergian: Manlius, etc., New York; New Jersey; etc. LEPEEDITIA ALTA Whitfield (1891). See Leperditia ohioensis. Leperditia altoides Weller. Leperditia altoides Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 252, pi. 23, figs. 1, 2. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 513, pi. 97, figs. 8, 9. Helderbergian: Flatbrookville, New Jersey (Rondout); Devil's Backbone, near Cumberland and Tonoloway, Maryland (Keyser). LEPERDITIA ALTOIDES Grabau. See Leperditia ohioensis. Leperditia amygdalina Jones. Leperditia amygdalina Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 341; Geol. Surv. Canada, dec. 3, 1858, p. 97, pi. 11, figs. 18, 19; Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 344, pi. 19, fig. 9; ibid., 14, p. 342; Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, pp. 98, 99. Stones River (Pamelia): Near L' Original, Canada. Leperditia angulifera Whitfield. Leperditia angulifera Whitfield, Ann. New York Acad. Sci., 2, 1882, p. 197; ibid., 5, 518, pi. 5, figs. 28-30; Geol. Surv. Ohio, Pal., 7, 1893, p. 418, pi. 1, figs. 28-30. Sherzer, Geol. Surv. Michigan, 7, pt. 1, 1900, pi. 17, figs. 28-30. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 340, fig. 1654. Grabau, Michigan Geol. Surv., Geol., 1st ser., 1909, p. 203, pi. 30, figs. 28-30. Lower Monroan (Greenfield): Greenfield, Ohio. Leperditia anna Jones. Leperditia anna Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 247, pi. 9, fig. 18; Geol. Surv. Canada, dec. 3, 1858, p. 96, pi. 11, fig. 13; Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, pp. 98, 99. Canadian (Beekmantown) : St. Anne, Canada. Leperditia anticostiana (Jones). Leperditia Canadensis var. Anticostiana Jones, Geol. Surv. Canada, dec. 3, 1858, p. 95, pi. 11, fig. 17. BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 699 Leperditla anticostiana Continued. Leperditia fabulites var. anticostiana Jones, Ann. Mag. Nat. Hist., 5th eer., 8, 1881, p. 344, pi. 19, fig. 8. Leperditia Anticostiana Billings, Cat. Sil. Fosa. Anticosti, Geol. Surv. Canada, 1866, p. 66. Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 341. Dwight, Trans. Vassar Bros. Inst., 5, 1890, p. 76. Leperditia Anticostiensis Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp. 98, 99. Anticostian (Jupiter River): East Point and Jumpers, Anticosti. LEPERDITIA ANTICOSTIENSIS Jonea. See Leperditia anticostiana. Leperditia appressa Ulrich. Leperditia appressa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 176, pi. 11, figs. 5a-d. Trenton (Perryville) : Danville and Harrodsburg, Kentucky. Cotypes.Cat. Nos. 41281, 41282, U.S.N.M. Leperditia a re tic a (Jones). Leperditia baltica var. arctica Jones, in Salter Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, App., 1852, p. 221, pi. 5, fig. 13; ibid., Quart. Jour. Geol. Soc. London, 9, 1853, p. 314. Leperditia arctica Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 87, pi. 7, figs. 1-5. Niagaran: Cape Hotham, Assistance Bay, Seal Island, Baring Bay, etc., Arctic America. LEPERDITIA (ISOCHILINA) ARMATA Walcott. See Isochilina armata. LEPERDITIA BALTHICA var. b. Kolmodin. See Leperditia hisingeri. Leperditia balthica guclphica Jones. Leperditia balthica var. guelphica Jones, Cont. Micro-Pal.., Geol. Surv. Canada, pt. 3, 1891, p. 80, pi. 13, figs. 12a, b, 13a-c. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 2, 1895, p. 106 (loc. occ.). Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 106, pi. 21, figs. 9-11. Niagaran (Guelph): Durham and Aboyne, Ontario; Rochester, New York. Leperditia balthica primaova Jones. Leperditia balthica var. primseva Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 70, pi. 10, fig. 18. Stones River (Pamelia): Carleton County, Ontario. LEPERDITIA BALTICA var. ARCTICA Jones. See Leperditia arctica. LEPERDITIA BILLINQSI Jones. See Aparchites billingsi. LEPERDITIA BIVERTEX Ulrich. See Ulrichia bivertex. Leperditia biyia White. Leperditia bivia White, Rep. U. S. Geogr. Surv. West 100th Merid., 4, 1877, p. 58, pi. 3, figs. 7a-d (Prelim. Rep. 1874, p. 11). Walcott, U. S. Geol. Surv., Mon. 8, 1884, p. 88. Upper Pogonip: Queen Spring Hill, Schell Creek Range, Nevada. Cotypes. Cat. No. 17411, U.S.N.M. LEPERDITIA BTRNESI Miller. See Dicranella? byrnesi. 700 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Leperdltia caeca Jones. Leperditia caeca Jones, Contr. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 88, pi. 12, figs. 6, 7, 9. Niagaran: Saskatchewan River, Canada. Leperditia caecigena Miller. Leperditia csecigena Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 263, pi. 6. figs. 5, 5a. Ulrich, ibid., 1891, p. 176, pi. 11, figs. 6a-d. Miller, N. A. Geol. Pal., 1889, p. 552, fig. 1021. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1047, pi. 53, fig. 10-10c. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 340, fig. 1656d, e. Richmond (Whitewater-Saluda) : Versailles, Madison, etc., Indiana. Plesiotypes.Cat. No. 41276, U.S.N.M. Leperditia csecigena frankfortensis Ulrich. Leperditia caecigena var. frankfortensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 277. Trenton (Perryville) : Reservoir Hill, Frankfort, Kentucky. Cotypes.C&t. No. 41279, U.S.N.M. LEPERDITIA CANADENSIS Jones (part). See Leperditia nana and L. canadensis, louckiana. Leperditia canadeusis Jones. Leperditia Canadensis Jones (part), Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 244, pi. 9, figs. 11-15. Chapman, Canadian Jour., n. s., 8, 1863, p. 195, fig. 15; Expos. Min. Geol. Canada, 1864, p. 167, fig. 163. Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 28 (loc. occ.). Emerson(?), Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879, p. 580, fig. 6. Jones, Ann. Mag. Nat. Hist., 5th ser, 14, 1881, p. 340. Dwight, Trans. Vassar Bros. Inst, 5, 1890, p. 76. Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp. 97, 99. Canadian (Beekmantown) : Grenville, etc., Quebec. LEPERDITIA CANADENSIS var. ANTICOSTIANA Jones. See Leperditia anticostiana. LEPERDITIA CANADENSIS var. JOSEPHIANA Jones. See Leperditia fabulites. Leperditia canadeusis labrosa Jones. Leperditia Canadensis var. labrosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 245, pi. 9, fig. 13; Geol. Surv. Canada, 3, 1858, p. 93, pi. 11, fig. 8; Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 343; Geol. Surv. Canada, Cont. Micro- Pal., pt. 3, 1891, pp. 97, 99. Chazyan (Aylmer): Hawkesbury, Ontario. Leperditia canadensis louckiana Jones. Leperditia Canadensis var. Louckiana Jones, Geol. Surv. Canada, dec. 3, 1858, p. 93, pi. 11, fig. 11; Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp. 97, 99. Leperditia canadensis? Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 245, pi. 9, figs. 16, 17. Leperditia fabulites var. louckiana Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 343. Leperditia louckiana Jones, Ann. Mag. Nat. Hist., 5th ser.. 14, 1884, p. 340. Dwight, Vassar Bros. Inst., 5, 1890, p. 76 (loc. occ.). Trenton: Loucks Mill, Castor River, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 701 LEPEEDITIA CANADENSIS var. NANA Jones. See Leperditia nana. Leperclitia canadensis pauquettlana Jones. Leperditia Canadensis var. Pauquettiana Jones, Geol. Surv. Canada, dec. 3, 1858, p. 94, pi. 11, fig. 12; Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp. 97, 99. Leperditia fabulites var. pauquettiana Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 343. Black River (Leray): Pauquette's Rapids, Allumette Island, Ottawa River, Canada. LEPERDITIA CANALIS Miller. See Leperditella canalis. Leperditia capax Safford . Leperditia capax Safford, Geol. Tennessee, 1869, p. 290 (nom. mid.). Trenton: Nashville, Tennessee. LEPERDITIA CLAYPOLEI Jones. See Primitiella claypolei. Leperditia concinnula Billings. Leperditia concinnula Billings, Geol. Surv. Canada, Pal. FOBS., 1, 1865, p. 299. Chazyan (Quebec-L, M): Point Rich and Table Head, Newfoundland. LEPERDITIA CREPLFORMIS Ulrich. See Jonesella crepidiformis. Leperditia cylindrica (Hall). Cytherina cylindrica Hall, Pal. New York, 2, 1852, p. 14, pi. 4, figs. 8a, b. Leperditia (Isochilina) cylindrica Jones, Ann. Mag. Nat. Hist, 3d ser., 1, 1858, p. 253. Leperditia cylindrica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80 (gen. ref.). Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 344. Isochilina cylindrica Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 218; Bull. New York State HUB., 45, 1901, p. 218. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 342. Upper Medinan: Medina, Lockport, etc., New York. LEPERDITIA (ISOCHILINA) CYLINDRICA Hall. See Bythocj-pris cylindrica. LEPERDITIA (?PRIMITIA) DORSICORNIS Ulrich. See Primitia dorsicornis. Leperditia elongata Weller. Leperditia elongata Weller, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p. 259, pi. 23, fig. 13. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 514, pi. 97, fig. 11. Helderbergian: Two miles south of Tristates, New York (Rondout); Tonoloway, Maryland (Keyser). Leperditia faba Hall. Leperditia faba Hall, 28th Rep. New York State Mus., doc. ed., 1875, pi. 32, figs. 1-3; mus. ed., p. 186, pi. 32, figs. 1-3; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 331, pi. 34, figs. 1-3. Niagaran (Waldron): Waldron, Indiana. Leperditia fabulites (Conrad). Cytherina sp. Hall, Pal. New York, 1, 1847, p. 44, pi. 10, fig. 12. Cytherina fabulites Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 332. Leperditia fabulites Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 89; ibid., 3d ser., 1, 1858, p. 341; ibid., 5th ser., 8, 1881, p. 342, pi. 20, fig. 4; ibid., 5th ser., 14, 1884, p. 342. Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig. 702 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Leperditia fabulltes Continued. Dwight, Trans. Vassar Bros. Inst., 5, 1890, p. 76. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 173, pi. 11, figs, la, d, 2. Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 98, 99. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 634, pi. 43, figs. 10-14. Ruedemann, Bull. New York State Mus., 49, 1902, p. 70, pi. 5, figs. 19, 20. Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 208, pi. 13, figs. 11, 12. Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig. 1. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 3, figs. 3-7.--Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 340, fig. 1653. Leperditia canadensis var. josephiana Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 341; Geol. Surv. Canada, dec. 3, 1858, p. 94, pi. 11, fig. 16. Leperditia fabulites josephiana Jones, Ann. Mag. Nat. Hist., 5th ser., 1881, p. 344, pi. 19, fig. 7; pi. 20, figs. 7, 8. Leperditia josephiana Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 341; Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 97 (loc. occ.). Dwight, Trans. Vassar Bros. Inst., 5, 1890, p. 76 (loc. occ.). Black River: Mineral Point, etc., Wisconsin; Minnesota; New York; Canada; etc. Stones River: Tennessee, etc. Ple&iotypes.C&t. Nos. 41263, 41267, U.S.N.M. (Ulrich). LEPERDITIA FABULITES var. ANTICOSTIANA Jones. See Leperditia anticostiana. LEPERDITIA FABULITES var. JOSEPHIANA Jones. See Leperditia fabulites. LEPERDITIA FABULITES var. LOUCKIANA Jones. See Leperditia canadensis var. louckiana. LEPERDITIA FABULITES var. PAUQUETTIANA Jones. See Leperditia canadensis var. pauquettiana. LEPERDITIA FIMBRIATA Ulrich. See Aparchites fimbriatus. Leperditia fonticola Hall. Leperditia fonticola Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 335, pi. 21 (12), figs. 1-3; rev. ed., 1870, p. 428, pi. 21, figs. 1-3. Niagaran (Byron): Fond du Lac, Wisconsin. Leperditia front alls Jones. Leperditia frontalis Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 547, pi. 21, figs. 8a, 8b. Anticostian (Jupiter River): Near The Jumpers, Anticosti. LEPERDITIA GERMANA Ulrich. See Leperditella germana. Leperditia gibbera Jones. Leperditia gibbera Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 90, pi. 7, figs. 8-10. Niagaran: Beechy Island, Lancaster Sound, Arctic America. LEPERDITIA GIBBERA var. SCALARIS Jones. See Leperditia scalaria. Leperditia gigantea Weller. Leperditia gigantea Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 260, pi. 23, fig. 14. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 514, pi. 97, fig. 10. Helderbergian: Two miles south of Tristates, New York (Rondout); Tonoloway, Maryland (Keyser). LEPERDITIA (!SOCHILINA) GRACDLIS Jones. See Isochilina gracilis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 703 LEPERDITIA QRANILABIATA Ulrich. See Aparchites granilabiatus. Leperditia hisingeri Schmidt. Cytherina balthica (part) Hislnger, Leth. Suecica, 1837, p. 10, pi. 30, fig. 1. Cythere baltica Roemer, Bronn's Leth. Geogn., 2, 1854, p. 528 (part), pi. 9, fig. 8a-c. Leperditia balthica (part) Jones, Ann. Mag. Nat, Hist., 2d ser., 17,1856, p. 85, pi. 6, figs. 3a-e; ibid., 5th ser., 8, 1881, p. 333, pi. 19, figs. 10, 11. Leperditia balthica var. b. Kolmodin, Bidrag till Kannedomen om Sverigea Silurika Ostracoder, 1869, p. 14, figs. 4, 5. Leperditia hisingeri Schmidt, Mem. Acad. Imp. Sci. St. Petersburg, 7th ser., 21, 1873, p. 16, fig. 23; ibid., 31, 1883, p. 14, pi. 5, figs. 5-7. Jones, Geol. Surv. Canada, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 82, pi. 13, figs. 1, 9. Krause, Zeits. d. d. geol. Gesell., 43, 1891, p. 489, pi. 29, fig. 4. Leperditia schmidti Kolmodin, Ofvers. Vet.-Akad. Forh., 36, 1880, p. 133. Silurian: Europe; Long Point, Lake Winnepegosis, Grand Rapids, Saskatchewan River, and Beechy Island, Lancaster Sound, Canada. Leperditia hisingeri egena Jones. Leperditia Hisingeri var. egena Jones, Geol. Surv. Canada, Contr. Micro. -Pal, pt. 3, 1891, p. 82, pi. 12, fig. 8. Niagaran: Grand Rapids, Saskatchewan River, Canada. Leperditia hisingeri fabulina Jones. Leperditia Hisingeri var. fabulina Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 82, pi. 10, figs. 5, 7; pi. 12, fig. 15; pi. 13, figs. 2, 3, 5, 6. Niagaran: Long Point, Lake Winnipegosis, and foot of Grand Rapids, Saskatche- wan River, Canada. Leperditia hisingeri gibbera Jones. Leperditia Hisingeri var. gibbera Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 82, pi. 13, fig. 4. Niagaran: Long Point, Lake Winnipegosis, Canada. Leperditia illinoisensis Savage. Leperditia illinoisensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 123, pi. 7, fig. 27. Upper Medinan (Channahon): Will County, Illinois. LEPERDITIA INFLATA Ulrich. See Leperditella inflata. Leperditia jonesi Hall. Leperditia jonesi Hall, Pal. New York, 3, 1859, p. 372; 12th Rep. New York State Cab. Nat, Hist., 1859, p. 80. Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 342. Schuchert, Amer. Geol., 31, 1903, p. 169. Cytherina alta? Conrad, Hall, Pal. New York, 2, 1852, p. 338, pi. 78, figs. 2a-d. Cayugan (Cobleskill): Schoharie, New York. LEPERDITIA JOSEPHIANA Jones. See Leperditia fabulites. Leperditia lima tula Raymond. Leperditia limatula Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 380; Ann. Carnegie Mua., 7, 1911, p. 253, fig. 25. Chazyan: Valcour Island, Valcour and Chazy, New York (Crown Point); East Tennessee (Lenoir). 704 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Leper dit la Hnneyi Ulrich. Leperditia linneyi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 174, pi. 11, figs. 3a-3e. Trenton ( Perry ville) : Harrodsburg, Frankfort, etc., Kentucky. Cotypes.Gs,t. No. 41272, U.S.N.M. LEPERDITIA LOUCKIANA Jones. See Leperditia canadensis louckiana. LEPERDITIA MACRA Miller. See Leperditella macra. Leperditia marginata Schmidt. Leperditia marginata Schmidt, Mem. Imp. Acad. Sci. St. Petersburg, 7th ser., 21, 1873, p. 19, pi., fig. 29; ibid., 31, 1883, p. 18, pi. 1, figs. 13-19. Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 86, pi. 10, figs. 6a-c. Silurian: Russia; east side of Lake Winnepegosis, Canada. LEPERDITIA MARGINATA Jones. See Isochilina grandis and I. grandis latimarginata. LEPERDITIA MILLEPUNCTATA Ulrich. See Aparachites millepunctata. LEPERDITIA (ISOCHILINA) MINUTISSIMA Hall. See Aparchites minutissimus. Leperditia morgani Safford. Leperditia Morgani Safford, Geol. Tennessee, 1869, p. 290 (noin. nud.) Trenton: Nashville, Tennessee. LEPERDITIA MUNDULA Ulrich. See Leperditella mundula. Leperditia nana (Jones). Leperditia canadensis Jones (part), Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 244; Contr. to Canadian MLcro-Pal., 1891, p. 97. Leperditia canadensis var. nana Jones, Geol. Surv. Canada, dec. 3, 1858, p. 92, pi. 2, figs. 6, 7, 9, 10; Ann. Mag. Nat. Hist., 5th ser., 8, p. 343. Leperditia nana Raymond, Ann. Carnegie Mus., 7, 1911, p. 254. Canadian (Beekmantown): Grenville, Quebec. ?Chazyan: Valcour Island, Crown Point, etc., New York. LEPERDITIA? OBSCURA Jones. See Leperditella obscura. Leperditia ohioensis Bassler (new name). Leperditia alta Whitfield (not Conrad), Ann. New York Acad. Sci., 5, 1891, p. 517, pi. 5, fig. 27; Geol. Surv. Ohio, Pal., 7, 1893, pp. 417-418, pi. 1, fig. 27. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 187, pi. 17, figs. 2a, b. Leperditia altoides Grabau (not Weller), Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 205, pi. 30, fig. 27. Lower Monroan (Greenfield) : Greenfield and Ball ville, Ohio. LEPERDITIA (ISOCHILINA) OTTAWA Jones. See Isochilina Ottawa. Leperditia ovata Jones. Leperditia ovata Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 252, pi. 10, fig. 14; Geol. Pennsylvania, 2, pt. 2, 1858, p. 834, fig. 697. Trenton: Potter's Fort, Penns Valley, Pennsylvania. Leperditia parvula Hall. Not recognized. Leperditia parvula Hall, Pal. New York, 3, 1859, p. 376. Tentaculite limestone: Herkimer County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 705 Leperditla pennsylvanica J Leperditia Pennsylvanica Jones, Ann. Mag. Nat. Hist., 3d scr., 1, 1858, p. 251, pi. 10, figs. 12, 13. Rogers, Geol. Pennsylvania, 2, pt, 2, 1858, p. 834, fig. 699. Clinton: Near Barre Forge, Pennsylvania. LEPERDITIA PERSIMILIS Miller. See Leperditella persimilis. Leperditia phaseolus (Hisinger). Cytherina phaseolus Hisinger, Leth. Sues., 1837, p. 9, pi. 1, fig. 1. Leperditia phaseolus Jones, Contr. Canadian Micro-Pal., 3, 1891, p. 85, pi. 13, . figs, 7, 8. Silurian: Europe; Saskatchewan River, at Roche Rouge, Canada. Leperditia phaseolus guelphica Jones. Leperditia phaseolus var. guelphica Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt, 3, 1891, p. 86, fig. 5. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 2, 1895, p. 106 (loc. occ.). Niagaran (Guelph): Durham, Ontario. LEPERDITIA RADIATA Ulrich. See Elpe radiata. Leperditia resplendens Ruedemann. Leperditia resplendens Ruedemann, Bull. New York State Mus., 49, 1901, p. 71, pi. 5, figs. 21-27. Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. Leperditia scalaris (Jones). Leperditia gibbera var. scalaris Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 250, pi. 10, figs. 10, 11. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 834; fig. 698. Leperditia scalaris Grabau, Bull. Geol. Soc. Amer., 11, 1900, p. 371, pi. 22, figs. 6a-d; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 219, fig. 150; Bull. New York State Mus., 45, 1901, p. 219, fig. 150; ibid., Bull. 92, 1906, p. Ill; Michigan Geol. Surv., Geol., 1st ser., 1909, p. 202, pi. 32, fig. 6a-d. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 340, fig. 1655. Cayugan: Williamsville, Buffalo, Akron, etc., New York; Ontario (Akron); Scho- harie and High Fails, New York (Cobleskill). LEPERDITIA SCHMIDTI Kolmodin. See Leperditia hisingeri. Leperditia selwyni Jones. Leperditia selwynii Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 89, pi. 12, figs. 1-5. Anticostian (Jupiter Paver): Jupiter River, Anticoeti. Leperditia sinuata Hall. Leperditia sinuata Hall, Canadian Nat. Geol., 5, 1860, p. 158. Dawson, Acadian Geol., 2d ed., 1868, p. 609. Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 24, pi. 1, figs. 12a-c. . Silurian: Arisaig, Nova Scotia. Leperditia subcylindrica Ulrich. Leperditia subcylindrica Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 49, pi. 9, figs. 4-4b. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 2, 1895, p. 125. Richmond (Stony Mountain) : Stony Mountain, Manitoba. 84243 Bull. 9215 45 706 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. Leperditia sublsevis (Shumard). Cythere sublaevis Shumard, 1st and 2d Ann. Rep. Geol. Sun-. Missouri, 2, 1855, p. 195, pi. 8, fig. 15. Leperditia subleevis Keyes, Missouri Geol. Surv., 4, 1894, p. 239. St. Peter (Joachim): St. Louis, Ste. Genevieve, and Rails Counties, Missouri. LEPERDITIA SULCATA Ulrich. See Leperditella sulcata. Leperditia symmetrica Holtedahl. Leperditia. symmetrica Holtedahl, 2cl Arct. Exp., 1898-1902, No. 32, 1914, p. 37, pi. 8, fig. 15. Helderbergian (Lower beds): Southwestern Ellesmereland, Arctic America. LEPERDITIA TUMIDA Ulrich. See Leperditella sulcatn. Leperdita tumidula Ulrich. Leperditia tumidula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 175, pi. 11, figs. 4a-c. Trenton (Perryville): Danville, Kentucky. Holotype.Cat. No. 41284, U.S.N.M. Leperditia turgid a Billings. Leperditia turgida Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 299. Canadian (Quebec F, II): Port aux Choix and Cape Norman, Newfoundland. LEPERDITIA TJNICORNIS Ulrich. See Primitiella unicornis. Leperditia ventralis Billings. Leperditia ventralis Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 300. Chazyan (Quebec N): Bonne Bay, Newfoundland. Leperditia whiteavesi Jones. Leperditia Whiteavesi Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 87, fig. 6; pi. 12, figs. 11-14. Niagaran: Chemahawin and Old Fort Island, Cedar Lake, Saskatchewan River, Canada, LEPIDOCOLEUS Faber. Genotype: Plumulitcs jamesi Hall and Whitfield. Lepidocoleus Faber, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 15. Miller, N. A. Geol. Pal., 1889, p. 553; ibid., 1st App., 1892, p. 709. Clarke, Amer. Geol., 17, 1896, pp. 137, 139; Zittel-Eastman Textb. Pal., 1900, p. 649; ibid., 2d ed., 1913, p. 743. Lepidocoleus jainesi (Hall and Whitfield). Plumulites Jamesi Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 106, pi. 4, figs. 1-3. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 274, fig. 19. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 723, figs. Lepidocoleus Jamesi Faber, Jour. Cincinnati Soc. Nat. Hist,, 9, 1886, p. 15, pi. 1, figs. A-F. Hall and Clarke, Pal. New York, 7, 1888, p. 64, fig. Miller, N. A. Geol. Pal., 1889, p. 553, figs. 1022-1023. Miller and Faber, Jour. Cin- cinnati Soc. Nat. Hist., 17, 1894, p. 32. Clarke, Amer. Geol., 17, 1896, pp. 137-143, pi. 7, fig. 9. Ruedemann, Bull. New York State Mus., 42, 1901, p. 521, pi. 2, figs. 10-12. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1050, pi. 53, figs. 13-13d. Trenton and Cincinnatian: Cincinnati, Ohio, and vicinity; Saratoga County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 707 Lepidocoleus sarlel Clarke. Lepidocoleua sarlei Clarke, Amer. Geol., 17, 1896, pp. 14-143, pi. 7, figs. 1-6. Grabau and Shimer, X. A. Index Fossils, 2, 1910, p. 371, fig. 1671. ton (Rochester): R<> \'< JW York. LEPIDODISCUS ciNCiXNATiExsirf Sharman and Xewton. See Agelacrinites cincin- natiensis. LEPIDODISCUS FABERI Cuminga. See A LEPIDODISCUS PILEUS Sladen. See Agelac-rinites pilrus. LEPIDOLITES Ulrich. Genotype: L. dickhauti Ulrich. Lepidolites Ulrich, Jour. Cincinnati Soc. Nat. LTist., 2, 1879, p. 20. Winchelland Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 67, pi. F, figs. 11, 12 (extras, 1893). Ulrich, Amer. Geol., 1, 1888, p. 324. Miller, N. A. Geol. Pal., 1889, p. 160. Ischadites James, Jour. Cincinnati Soc. Nat. Hist., 8, 1885, p. 163. Receptaculites James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 60. Lepidolites dickhauti Ulrich. Lepidolites dickhauti Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 21, pi. 7, figs. 17-1 7b. Winchelland Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 67, pi. F, figs. 11, 12. Ischadites dickhauti James, Jour. Cincinnati Soc. Nat. Hist., 8, 1885, p. 165; ibid., 9, 1886, p. 249. Receptaculites dickhauti James, ibid., 14, 1891, p. 63. Lepidolites elongatus Ulrich, ibid., 2, 1879, p. 22, pi. 7, fig. 16. Ischadites elongatus James, ibid., 8, 1885, p. 165. Eden (Sou thgate): Covington, Kentucky. Cotypes Cat. No. 46533, U.S.N.M. LEPIDOLITES ELONGATUS Ulrich. See Lepidolites dickhauti. LEPOCRINITES Conrad. Genotype: L. gebhardi Conrad. Lepocrinites Conrad, Ann. Rep. New York Geol. Surv., 1840, p. 207. Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 117, fig. 4. Mather, ibid., 1, 1843, p. 346, fig. 4. Schuchert, Smiths. Misc. Coll., 47, 1904, p. 213. Lepocrinus or Lepadocrinus Hall, Pal. New York, 3, 1859, p. 125, pl.7, figs. 1-20. Apiocystites Jaekel (part), Stammesg. Pelmat., Berlin, 1, 1899, p. 279, fig. 59. Lepadocrinus Bather (part), Treatise Zool., pt. 3, Echinoderma, London, 1900, p. 61. Haeckel, Die Amphorideen und Cystoideen, Leipzig, 1896, p. 134. Lepocrinites gebhardi Conrad. Lepocrinites gebhardii Conrad, 4th Ann. Rep. New York Geol. Surv., 1840, p. 207. Vanuxem, Nat, Hist. New York, Geol., 3, 1842, p. 117, fig. 4. Mather, ibid., 1, 1843, p. 346, fig. 4. Hall., ibid., 4, 1843, tab. ill. 27, fig. 4. Owen, Amer. Jour. Sci., 2d ser., 1846, p. 49, fig. 4. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 2 Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 215. Lepocrinus gebhardi Hall, Pal. New York, 3, 1859 (1861), p. 127, pi. 7, figs. 1-20 Haeckel, Die Amphorideen und Cystoideen, Leipzig, 1896, p. 135. Apiocystites gebhardi Jaekel, Stammesg. Pelmat., 1, Berlin, 1899, p. 282, fig. 59. Helderbergian (Manlius transition beds or Coeymans): Schoharie, etc., New York. 708 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Lepocrinites manlius Schuchert. Lepocrinites manlius Schuchert, Smiths. Misc. Coll., 47, 1904, p. 214, pi. 37, figs. 2, 3; pi. 39, figs. 15, 16; text fig. 23; Maryland Geol. Surv., Low. Dev., 1913, p. 231, pi. 32, figs. 8, 9; pi. 35, figs. 15,16. Helderbergian (Keyser): Keyser, West Virginia. Holotype.Czt. No. 35062, U.S.N.M. LEPOCRINITES MOOREI Meek. See Lepadocystis moorei. LEPOCRINUS Hall. See Lepocrinites Conrad. LEPTJENA Dalman. Genotype: Productus rugosa Hisinger=Conchita rhomboidalis Wilckens. Leptaena Dalman, Kongl. Svenska Vet.-Akad. Handl., for 1827, 1828, pp. 93, 94. King, Mon. Permian Foss., Pal. Soc., 1850, p. 104. Billings, Canadian Nat. Geol., 1, 1856, p. 133. Pictet, Traite" de Pal., 2d ed., 4, 1857, p. 60. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, Jan., p. 56. Zittel, Handb. Pal., 1, 1880, p. 678. Winchell, 9th Ann. Rep. Geol. Nat. Hist. Surv. Minne- sota, 1881, p. 118. Miller, N. A. Geol. Pal., 1889, p. 347. Beecher, Amer. Jour. Sci., 3dser., 44, 1892, pp. 145, 147. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 276. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 409. Hall and Clarke, llth Ann. Rep. New York State Geol., 1894, p. 277. Koken, Die Leitfossilien, Leipzig, 1896, p. 237, fig. 198, 4-6. Schuchert, Zittel- Eastman Textb. Pal., 1, 1900, 313. Grabau, Bull. New York State Mus., 45, 1901, p. 180; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 180. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 225. Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res. Indiana, 1908, p. 889. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 384. Leptagonia McCoy, Carb. Foss. Ireland, 1844, p. 116, figs. 11-13. D'Orbigny, Compt. Rend, de 1'Acad. Sci., 25, 1847, p. 267. McCoy, British Pal. Rocks and Foss., 1854, p. 247. Zittel, Handb. Pal., 1, Munich, 1880, p. 678 Winchell, 9th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1881, p. 118. Koken, Die Leitfossilien, Leipzig, 1896, p. 237, fig. 198, 4-6. Plectambonites Oehlert, Fischer's Manual Conch., 1887, p. 1283. LEPTJSNA ALTERNATA Conrad. See Rafinesquina alternata. LEPT^ENA ALTERNISTRIATA Hall. See Rafinesquina alternata alternistriata. LEPTAENA ASPERA James. See Plectambonites rugosa. LEPT^NA BARABUENSIS Whitfield. See Syntrophia barabuensis. LEPTAENA BIPARTITA Hall. See Stropheodonta (Leptostrophia) bipartita. LEPT.ENA CAMERATA Hall. See Rafinesquina deltoidea. Leptaena charlottse Winchell and Schuchert. Leptsena charlottse Winchell and Schuchert, Amer. Geol., 9, April 1, 1892, p. 288; Geol. Minnesota, 3, 1893, p. 410, pi. 32, figs. 1-5. Strophomena halli Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, April 9, 1892, p. 334, pi. 4, figs. 36-38. Black River (Decorah): Minneapolis and St. Paul, Minnesota. LEPT^JXA CORRUGATA Hall. See Stropheodonta corrugata and S. corrugata pleu- ristriata. LEPTAENA DECIPIENS Billings. See Leptella decipiens. DEFLECTA Hall. See Dinorthis (Plsesiomys) deflecta. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 709 LEPT,ENA DELTOIDEA Hall. See Rafinesquina deltoidea. LEPT^XA DELTOIDES Owen. See Rafinesquina minnesotensis: LEPT.ENA DEPRESSA Hall. See Leptsena rhomboidalis. LEPTJSNA EUGLYPHA Hisinger. See Strophonella euglypha. LEPT.ENA FASCIATA Hall. See Leptaena incrassata. 'LEPT^BXA FILITEXTA Hall. See Strophomena incurvata. LEPT^EXA GIBBOSA Miller. See Plectambonites gibbosus. Leptaena gibbosa (James). Strophomena gibbosa James, Cincinnati Quart. Jour. Sci., 1, 1874, p. 333. Leptaena gibbosa Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 316; ibid., 17, 1912, p. 116, pi. 1, figs. 5a-c. Eden (Economy): Cincinnati, Ohio, and vicinity; Boyd and north of Ford, Kentucky. Leptaena gibbosa invenusta Foerste. Leptsena gibbosa invenusta Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 315, pi. 7, fig. 3. Eden (Fulton or Lower Economy): Two miles west of Drennan Springs, Ken- tucky. LEPTAENA GLABRA Foerste'. See Plectambonites glaber. Leptaena incrassata Hall. Leptaena incrassata Hall, Pal. New York, 1, 1847, p. 19, pi. 4 bis, figs. 2a-c. Rogers, Geol. Pennsylvania, pt. 2, 1858, p. 817, fig. 519. Strophomena incrassata Billings, Canadian Nat. and GeoL, 4, 1859, p. 443. Win- chell and Schuchert, Pal. Minnesota, 3, pt. 1, 1893, p. 410. Raymond, Car- negie Mus., 7, 1911, p. 230, pi. 34, figs. 32-37, figs. 1-5. Leptama fasciata Hall, Pal. New York, 1, 1847, p. 19, pi. 4 bis, figs. 3a, b (not 3c). Strophomena fasciata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 235, pi. 3, fig. 24. Hall, 12th Ann. Rep. New York State Cab. Nat. Hist., 1858, p. 70. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1126, fig. Rafinesquina fasciata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 283. Leptama plicifera Hall, Pal. New York, 1, 1847, p. 19, pi. 4 bis, fig. 1. Strophomena plicifera Emmons, Amer. Geology, 1, pt. 2, 1855, pi. 3, figs. 21b, c. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 70. Dalmanella? plicifera Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 202. Chazyan: Mingan Islands, Canada (Mingan); Chazy, Valcour Island, Crown Point, etc., New York (Crown Point, Valcour). LEPT^NA INCRASSATA Hall. See Rafinesquina incrassata. Leptaeua Julia (Billings). Strophomena Julia Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 127, fig. 105 (adv. sheets, 1862). Leptasna Julia Shaler, Bull. Mus. Comp. Zool., 1865, p. 65. Anticostian (Jupiter River) : The Jumpers, Anticosti. LEPT^NA MELITA Hall and Whitfield. See Dalmanella melita. LEPTAENA MESACOSTA Shumard. See Rafinesquina mesicosta. LEPT^NA MINNESOTENSIS Sardeson. See Plectambonites minnesotensis. 710 BULLETIN 92. UNITED STATES NATIONAL MUSEUM. Leptaena nitens (Billings). Strophomena nitens Billings, Canadian Nat. GeoL, 5, 1860, p. 53, fig. 1; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 118, fig. 97 (adv. sheets, 1862); Geol. Canada, 1863, p. 209, fig. 208. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1130, figs. Rafinesquina nitens Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 283. Leptaena nitens Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 120. Richmond: Charleton Point, etc., Anticosti (Charletoii and English Head and Gamachian); Stony Mountain, Manitoba (Stony Mountain); Wyoming; etc. LEPTSENA OBSCURA Hall. See Rafinesquina obscura. LEPT.EXA ORTHIDIDEA Hall. See Strophomena? orthididea. LEPT.ENA PATEXTA Hall. See Strophonella patenta. LEPTJEXA PLANOCONVEX A Hall. See Strophomena planoconvexa. LEPT^ENA PLANUMBOXA Hall. See Strophomena planurnbomi. LEPTJEXA PLICATELLA Ulrich. See Plectambonites plicatellus. LEPT^EXA PLICIFERA Hall. See Leptsena incrassata. LEPT.EXA PRECOSIS Sardeson. See Plectambonites precosis. LEPTSENA PROFUNDA Hall. See Stropheodonta profunda. LEPT^EXA PROLONGATA Foerste. See Plectambonites transversalis prolongatus. LEPT^ENA QUADRILATERA Shaler. See Leptsena rhomboidalis. * LEPT^EXA RECEDENS Sardeson. See Plectambonites recedens. LEPT^NA RECTA Hall. See Dinorthis (Plsesiomys) deflecta. Leptaena reticulata (Shaler). Strophomena reticulata Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 62. Richmond (Charleton) and Gamachian (Ellis Bay) : Ellis Bay, Anticosti. Leptsena rhomboidalis (Wilckens). Conchita rhomboidalis Wilckens, Nachrict von selten Yersteinerungen, 1769, p. 77, pi. 8, figs. 43, 44. Anomites rhomboidalis Wahlenberg, Acta Soc. Upsala, 3, 1821, p. 65. Strophomena undulosa Conrad, 5th Ann. Rep. Geol. Surv. New York, 1841, p. 54. Strophomena depressa Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 79, fig. 5. Hall, ibid., Rep. 4th Dist., 1843, p. 77, fig. 5; p. 104, fig. 2. Billings, Canadian Nat. Geol., 1, 1856, p. 59, pi. 1, fig. 5. Roemer, Sil. Fauna West, Tennessee, 1860, p. 65, pi. 5, fig. 2. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1126, figs. Strophomena undulatus Vanuxeni, Geol. New York, Rep. 3d Dist., 1842, p. 139, fig. 3. Hall, ibid., Rep. 4th Dist., 1843, p. 175, fig. 3. Yandell and Shumard, Cont. Geol. Kentucky, 1847, p. 11. Productus? sulcatus Castelnau, Essai Syst. Sil. I'Amerique Septentrionale, 1843, p. 39, pi. 13, i: Productus sulcifer de Verneuil, ibid., 1843, p. 39. Leptsena depressa Hall, Pal. New York, 2, 1852, p. 62, pi. 21, fig. 8; p. 2 53, fig. 6. Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 823, fig. 630. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 711 Leptsena rhomboid alls Continued. Strophomena rugosa Hall, Pal. New York, 3, 1859, p. 195, pi. 19, fig. 1. Safford, Geol. Tennessee, 1869, p. 315, fig. 11. Miller, N. A. Geol. Pal., 1889, p. 383, fig. 623. Lesley, Rep. Geol. Surv. Pennsylvania, P 4, 1890, p. 1138, fig. Strophomena rhomboidalis Billings, Canadian Jour., 6, 1861, p. ;'> i 1, 112; Geol. Canada, 1863, p. 311, fig. 314; p. 367, fig. 373; Proc. Portland So. . Nat, Hist,, 1863, p. 107, pi. 3, fig. 1. Chapman, Expos. Min. and Geol. Ca 1864, p. 115, fig. 96; p. 193, fig. 232. Hall, Pal. New York, 4, 1867, p. 76, pi. 12, figs. 16-18; p. 414, pi. 15, figs. 15, 16. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 426, pi. 10, fig. 7. Davidson, Mon. British Sil. Brach., Pal. Soc., 1871, p. 281, pi. 39, figs. 1-21; pi. 44, fig. 1. Billings, Pal. Foss., 2, 1874, p. 27. White, Wheeler's Expl. Surv. West 100th Merid., 4, 1875, p. 85, pi. 5, fig. 5. Hall and Whitfield, King's U. S. Geol. Expl. 40th Parl., 4, 1877, p. 253, pi. 4, fig. 4. Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, p. 151, pi. 22, figs. 4-10; llth Rep. State Geol. Indiana, 1882, p. 288, pi. 22, figs. 4-10; 2d Ann. Rep. New York State Geol., 1883, pi. 38, figs. 17-31. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 118. Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, pi. 22, fig. 1. Herrick, Amer. Geol., 3, 1889, pi. 4, fig. 6. Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 18, pi. 2, figs. 1-13. Nettleroth, Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky, 1889, p. 150, pi. 18, figs. 1-3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1131, figs. Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 298. Beecher, Amer. Jour. Sci., 3d ser., 41, 1891, p. 357, pi. 17, figs. 18- 21. Herrick, Geol. Ohio, 7, 1895, pi. 20, fig. 6. Strophomena analoga Davidson, Quart. Jour. Geol. Soc. London, 19, 1863, p. 173, pi. 9, fig. 18. Dawson, Acadian Geol., 3d ed., 1878, p*. 295, fig. 95. Leptaena quadrilatera Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 65. Lepteena rhomboidalis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 279, pi. 8, figs. 17-31; pi. 15A, figs. 40-42; pi. 20, figs. 21-24. Foerste, Geol. Ohio, 7, 1895, p. 566. Weller, Jour. Geol., 3, 1895, p. 912. Girty, Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 525; 19th Ann. Rep. U. S. Geol. Surv., 1899, p. 563. Clarke, Mem. New York State Mus., 3, 1900, p. 57. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 180, fig. 84. Weller, Trans. Acad. Sci. St. Louis, 11, 1901, p. 159, pi. 14, figs. 19, 20; p. 180, pi. 16, figs. 7, 8. Kindle, 25th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1901, p. 593, pi. 4, fig. 5. Weller, Jour. Geol., 9,, 1901, p. 136. Grabau, Bull. New York State Mus., 45, 1901, p. 180, fig. 84. Ruedemann, Bull. New York State Mus., 49, for 1901, 1902, p. 18. Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 42. Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 228, pi. 20, fig. 10; p. 278, pi. 27, fig. 9-; p. 302, pi. 33, fig. 10; p. 325, pi. 41, fig. 10; p. 366, pi. 51, fig. 19. Girty, U. S. Geol. Surv., Prof. Paper 21, 1904, p. 48, pi. 10, fig. 3. Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 431, pi. 2, fig. 17. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 226, figs. 273a-K Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 20. Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 308, pi. 56, figs. 13-17. Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 47, pi. 1, fig. 11; pi. 4, fig. 3, p. 72. Leptaena (Strophomena) rhomboidalis Beecher, Amer. Jour. Sci., 3d per., 46, 1892, p. 150, pi. 1, figs. 7-9. Plectambonites rhomboidalis Keyes, Geol. Surv. Missouri, 5, 1895, p. 70, fig. <>. Silurian-Mississippian : Widely distributed throughout Europe and America. rii'sioiypcs. Cat. Nos. 56722, 56723, U.S.N.M. Leptaena richmondensis Foerste. Leptsena tenuistriata Hall (part), Pal. New York, 1, 1847, p. 108, pi. 31A, fig. 4. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 8, figs. 12-16. 712 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. Leptsena richmondensis Continued. Strophomena tenuistriata Safford, Geol. Tennessee, 1869, p. 275, fig. 2. Strophomena rhomboidalis Meek, Pal. Ohio, 1, 1873, p. 75, pi. 5, fig. 6. Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 1. Strophomena tenuistriata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 55. Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 38, figs. 12-16. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1134, figs. Lepteena rhomboidalis Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 1908, p. 909, pi. 34, figs. 5-5d. Lepteena richmondensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 211, pi. 4, figs. lOa, b; ibid., 17, 1912, p. 117, pi. 1, figs. 6a-c. Richmond: Ohio, Indiana, Kentucky, and Tennessee. Leptaena richmondensis precursor Foerste. Leptsena richmondensis precursor Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 211, pi. 4, fig. 11; Ohio Nat., 12, 1912, p. 453, pi. 22, fig. 7. Richmond (Arnheim) : Arnheim and other localities in Ohio and Kentucky. LEPT^SNA RUGOSA James. See Plectambonites rugoea. LEPT.ENA SAXEA Sardeson. See Plectambonites saxea. LEPT^NA SERICEA Sowerby. See Plectambonites sericeus. LEPTSENA SERICEA var. RUGOSA Meek. See Plectambonites rugosa. LEPT^ENA SORDIDA Billings. See Leptella sordida. Leptsena(?) stelzneri Kayser. Leptaena stelzneri Kayser, Palseontographica, Suppl., 3, 1876, p. 21, pi. 3, fig. 21. Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 241. Ordovician: Guaco, Argentina. LEFLENA STRIATA Hall. See Strophonella striata. LEPT^INA SUBPLANA Hall. See Schuchertella subplana. LEPT^JNA SUBQUADRATA Hall. See Christiania subquadrata. LEPXSJNA SUBTENTA Hall. See Strophomena plannmbona subtenta. LEPTAENA SUBTENTA (part) Hall. See Strophomena trentonensis. LEPTJSNA SULCATA Vemeuil. See Strophomena sulcata. LEPT^BNA TENUILINEATA Hall. See Rafinesquina tenuiiineata. Leptsena tenuistriata Sowerby. Leptsena tenuistriata Sowerby in Murchison'a Sil. Syst., 2, 1839, p. 636, pi. 22, fig. 2a. Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 45, pi. 5, fig. 9. Caradoc sandstone: Montgomeryshire, England. Trenton (Hermitage): Clifton, Tennessee. LEPTAENA TENUISTRIATA Hall. See Leptsena richmondensis. LEPTAENA TRANSVERSALIS Hall. See Plectambonites trans versalis. LEPTAENA TRANSVERSALIS var. ALABAMENSIS Foerste. See Plectambonites transver- salis alabamensis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 713 TRANSVERSALIS var. PROLONGATA Foerste. See Plectambonites transver- salis prolongatus. LEPT^NA TRILOBATA Owen. See Strophomena trilobata. Leptaena unicostata (Meek and Worthen). Leptsena (n. sp.?) Owen, Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, pi. 2B, fig. 3. Strophomena unicostata Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 335, pi. 4, fig. 11. Whitfield, Geol. Wisconsin, 4, p. 262, pi. 12, fig. 14. Rafinesquina unicostata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 15A, fig. 39; pi. 20, fig. 25. Leptaena unicostata Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 411, pi. 32, figs. 6-9. Whiteaves, Pal. FOBS., 3, pt. 3, 1897, p. 174. Grabau and Shimer, N. A. Index Fossils 1, 1907, p. 226, figs. 271i-j. Richmond: Savannah and Wilmington, Illinois; Delafield and Iron Ridge, Wis- consin; Spring Valley and Granger, Minnesota; Lattners, Iowa; Rapids of the Nelson River, Lake Winnipeg, Manitoba; Texas; etc. LEPTAGONIA McCoy. See Leptsena Dalman. LEPTELLA Hall and Clarke. Genotype: Leptsena sordida Billings. Leptella Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 293; llth Ann. Rep. New York State Geol., 1894, p. 277. Miller, N. A. Geol. Pal., 1st App., 1892, p. 688. Leptella decipiens (Billings). Leptsena decipiens Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 74, fig. 67; p. 219 (adv. sheets 1862); Geol. Canada, 1863, p. 231, fig. 243. Leptella decipiens Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 294. Ozarkian or Canadian: Point Levis, Quebec (Levis-Limestone No. 2); four miles northeast of Portland Creek, Newfoundland (Quebec P). Leptella sordida (Billings). Leptsena sordida Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 73, text fig. 66 (adv. sheets 1862); Geol. Canada, 1863, pu 231, fig. 242. Leptella sordida Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 293, pi. 15A, figs. 12-16. Ozarkian? (Levis erratic): Point Levis, Quebec. LEPTOBOLUS Hall. Genotype: L. lepis Hall. Leptobolus Hall, Description n. sp. Foss. from Hudson River Group, 1871, p. 3; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 226. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, Jan., p. 10. Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 85. Zittel, Handb. Pal., 1, 1880, p. 665. Miller, N. A. Geol. Pal., 1889, p. 348. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 73, 165; llth Ann. Rep. New York State Geol., 1894, p. 241. Schuchert, Zittel- Eastman Textb. Pal., 1, 1900, p. 307. Matthew, Trans. Roy. Soc. Canada, 2d ser., 8, sec. 4, 1902, p. 102. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 194. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, p. 890. Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 372. LEPTOBOLUS GEMMULUS Matthew. See Lingulella ferruginea. LEPTOBOLUS GRANDIS Matthew. See Lingulella grandis. 714 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. Leptobolus insignis Hall. Leptobolus insignis Hall, Descrip. n. sp. Foss. from Hudson River Group, 1871, p. 3, pi. 3, fig. 17; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 227, pi. 7, fig. 17. Nicholson, Pal. Province Ontario, 1875, p. 85. Ami, Canadian Rec. ScL, 3, p. 103 (loc. occ.). Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 74, pi. 3, figs. 1-6. Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 194. Utica: Middleville, Utica, etc., New York; Ottawa, Ontario; Cincinnati, Ohio (Fulton); Macasty Bay, Anticosti (Macasty). Leptobolus lepis Hall. Leptobolus lepis Hall, Description n. ep. Foss. from Hudson River Group, 1871, p. 3, pi. 3, figs. 19, 20; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 226, pi. 7, figs. 19, 20. Hall and Whitfield, Pal. Ohio, 2, 1875, p. 69, pi. 1, figs. 10, 11. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 11. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 74, pi. 3, figs. 8-10. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 911, pi. 34, figs. 6, 6a. Trenton (Upper): Cincinnati, Ohio*, and vicinity. Leptobolus lepis eliftonensis Foerste. Leptobolus lepis cliftonensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 21, pi. 2, figs. 20a-c. Trenton (Hermitage): Clifton, Tennessee. Leptobolus occidentalis Hall. Leptobolus occidentalis Hall, Description n. sp. Foss. from Hudson River Group, 1871, p. 3, pi. 3, fig. 18; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 227, pi. 7, fig. 18. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 3, fig. 7. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 194. Richmond: Hawleys Mills, Iowa; Platteville, Wisconsin (Maquoketa); Arkansas and Oklahoma (Sylvan). teptobolus walcotti Ruedemann. Leptobolus walcotti Ruedemann, Bull. New York State Mus., 42, 1901, p. 569, pi. 1, figs. 6-12. Chazyan (Normanskill)* Mount Moreno, near Hudson, New York; Arkansas; Tennessee. LEPTOCCELIA Hall. See Ccelospira Hall. LEPTOCCELIA DISPARILIS Hall. See Atrypina disparilis. LEPTOC(ELIA INTERMEDIA Hall. See Atrypina intermedia. LEPTODESMA Hall. Genotype: L. potens Hall. Leptodesma Hall, Pal., New York, 5, pt. 1, Lam. (adv. copy), 1883, p. 4; ibid., 1, 1884, pp. 13, 175; 35th Rep. New York State Mus. Nat. Hist., 1884, pp. 347, 406c. Miller, N. A. Geol. Pal., 1889, p. 484. Jackson, Amer. Nat., 24, 1890, p. 1141; Mem. Boston Soc. Nat. Hist., 4, 1890, p. 381. Clarke, Amer. Geol., 13, 1894, pp. 286-289, figs. Hind, Mon. British Carb. Lam., 2, Pal. Soc., 1901, p. 10. Leptodesma rhomboidea (Hall). Avicula rhomboid ea Hall, Pal. New York, 2, 1852, p. 84, pi. 27, figs. 2a, b, c, d. Leptodesma rhomboideum Whitfield and Hovey, Bull. Amer. Mus, Nat. Hist., 11, 1899, pi. 2, p. 158 (gen. ref.)- Clinton: New Hartford and Sodus, New York; Arisaig, Nova Scotia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 715 LEPTOBOMl S Mr avpe: L. fragilis M Leptodomus McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 66; British Pal. Rocks and Foss., 1854, p. 277. Pictet, Traitede Pal., 2d ed., 3., 1855, p. 531. Billings, Proc. Portland Soc. Nat. Hist., 1, 18G3, p. 117. Winchell Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 108. 7. 2, Munich, 1881, p. 129. Miller, N. A. Geol. Pal., Is . Die Leitfossilien, Leipzig, 1896, p. 526. Loptodomus (Sanguinolites) aratus Hall. Leptodomus (Sanguinolites) aratus Hall, Canadian Nat. Geol., 5, I860, p. L52. Dawson, Acadian Geol., 2d ed., 1868, p. 603. Silurian: Arisaig, Nova Scotia. LEPTODOMUS (AMPHICOZLIA) LEIDYI Whitfield. See Amphicoelia leidyi. LEPTODOMUS NEGLECTUS Whitfield. See Amphico?lia neglecta. LEPTODOMUS UNDULATUS Whitfield . See Ambonychla undulata. LEPTOGRAPTUS Lapworth. Genotype: Graptolithus flaccidus Hall. Lcptograptus Lapworth, Geol. Mag., 10, 1873, p. 558. Zittel, Handb. V Munich, 1879, p. 298. Tullberg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, pp. 12, 14. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 266. Walther, Zeits. geol. Gesell., 49, 1897, p. 251. -Roomer and Freeh, Leth. geog., 1, Theil, Leth. Pal., 1, 3 Lief., 1897, p. 591; Zittel-Eastman Textb. Pal., 1, 1900, p. 118. Elles and Wood, Mon. British Grapt,, Pal. Soc., 1903, p. 104. Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 260; Zittel-Eastman Textb. Pal.,2ded.,1913,p.l30. Leptograptus annectans (Walcott). Graptolithus annectans Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879), pp. 20, 35, pi. 1, figs. 2, 2a. Leptograptus annectans Lapworth, Trans. Roy. Soc. Canada, 4, 1886, 183. Ami, Can. Rec. Sci., 9, 1893, 180. Ruedemann, Mem. New York State Mus.,Jl, pt. 2, 1908, pp. 264-266, pi. 14, fig. 5; figs. 180-183. Graptolithus tenuis? Ulrich, Cat. Foss. Cincinnati group, 1880. Utica: Holland Patent, New York; Cincinnati, Ohio, and vicinity. Pksiotype.C&t. No. 54274, U.S.N.M. Leptograptus flaccidus (Hall). Graptolithus flaccidus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 143, pi. 2, figs. 17-19. Graptolithus (Monoprion) flaccidus Hall, 20th Rep. New York State Cab. Hist., 1868, pi. 3, figs. 10, 11; rev. ed., 1870, pi. 3, figs. 10, 11; p. 223. Leptograptus flaccidus Gurley, Jour. Geol., 4, 1896, p. 99 (gen. ref.). Elles and Wood, Mon. British Grapt,, Pal. Soc., 1903, p. 106, figs. 62a-g; pi. 14, figs. la-g. Trenton (Collingwood): Lake St. John, east from Blue Point, Quebec. Leptograptus flaccidus spinifer Elles and Wood. Leptograptus flaccidus var. spinifer Elles and Wood, Mon. British Grapt., pt. 3, 1903, Pal. Soc., 1903, p. 108, pi. 14, figs. 2a-c. Leptograptus flaccidus var. spinifer mut. trentonensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 262, 263, pi. 14, figs. 8, 9; text figs. 176-178. Ordovician: England (Hartfell); Glenmont and Mount Moreno, New York (Nor- manskill) . 716 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. LEPTOGRAPTUS FLACCIDUS SPINIFER mut. TRENTONENSIS Ruedemann. See Lepto- graptus flaccidus spinifer. Leptograptus flaccidus trentonensis Ruedemann. Leptograptus flaccidus mut. trentonensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 261, pi. 14, fig. 7; figs. 172-175. Chazyan (Normanskill) : Glenmont and Mount Moreno, New York. Leptograptus macrotheca Gurley. Leptograptus? macrotheca Gurley, Jour. Geol., 4, 1896, p. 69. Canadian (Levis): Point Levis, Quebec. LEPTOGRAPTUS STJBTENUIS Walcott. See Didymograptus subtenuis. LEPTOGRAPTUS TENUIS Lapworth. See Didymograptus subtenuis. LEPTOPLASTUS Angelin. Genotype: L. stenotus Angelin. Leptoplastus Angel in, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 46. Brogger, Die sil. Etagen 2-3, Kristiania, 1882, p. 113. Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 53. Koken, Die Leitfossilien, Leipzig, 1896, p. 20, fig. 11, fig. 2. Lindstrom, Kongl. Sven. Yet.-Akad. Handl., 34, No. 8, 1901, p. 22. LEPTOPLASTUS (SPH^ROPHTHALMUS) ALATUS Brogger. See Sphserophthalmus alatus. LEPTOPLASTUS (CTENOPYGE) FLAGELLIFER Linnarsson. See Ctenopyge flagellifer. Leptoplastus latus Matthew. Leptoplastus latus Matthew, Canadian Rec. Sci., 4, 1891, p. 462, figs. 1-3; Trans. Roy. Soc. Canada, 9, sec. 4, 1892, p. 54, pi. 13, figs. lOa-c. Canadian (Bretonian Div. C3b): St. John, New Brunswick. LEPTOPLASTUS (CTENOPYGE?) LOB ATA Brogger. See Ctenopyge? lobata. LEPTOPLASTUS (CTENOPYGE) SPECTABILIS Brogger. See Ctenopyge spectabilis. LEPTOPLASTUS SPINGER Matthew. See Acantholenus spiniger. Leptoplastus spinosus Matthew. Leptoplastus spinosus Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1894, p. 106, pi. 17, figs. 4a-e. Canadian (Bretonian Div. C3b): St. John, New Brunswick. LEPTOPOTERION Ulrich. Genotype: L. mammiferum Ulrich. Leptopoterion Ulrich, Amer. Geol., 3, 1889, pp. 235, 239. Miller, N. A. Geol. Pal., 1889, p. 161. James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 54. Rauff, Abh. d'math.-phys. Classe bayer Akad. Wiss., 17, 1892, p. 691. Leptopoterion mammiferum Ulrich. Leptopoterion mammiferum Ulrich, Amer. Geol. 3, 1889, p. 239. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 54. Chirospongia faberi Miller, N. A. Geol. Pal., 1889, p. 156, fig. 99. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 14, pt, 1, 1891, p. 65. Maysville (Corryville): Cincinnati, Ohio. LEPTOSTROPHIA Hall and Clarke. See Stropheodonta subgenus Leptostrophia. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 717 LEPTOTRTPA Ulrich. Genotype: L. minima Ulrich. Leptotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 158.- Miller, N. A. Geol. Pal., 1889, p. 311. Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 377, 455; Geol. Minnesota, 3, 1893, p. 316. Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 580. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31. Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, pp. 24, 28. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 749. Bassler, Bull . U. S. Nat. Mua., 77, 1911, p. 207. LEPTOTRYPA ACERVULOSA Ulrich. See Cyphotrypa acervulosa. Leptotrypa calceola (Miller and Dyer). Monticulipora calceola Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 26, pi. 1, figs. 11, lla. James and James, ibid., 11, 1888, p. 27. J. F. James, ibid., 18, 1895, p. 87. Monticulipora (Monotrypa) calceola Nicholson, Genus Monticulipora, 1881, p. 185, pi. 1, figs. 3-3e. Leptotrypa calceola Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 159. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 853, pi. 20, figs. 1-lc. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Leptotrypa clavacoidea (James). Chsetetes clavacoideus James, Cat. Low. Sil. Foss., 1871. p. 1. (nom. nud.); Cat. Foss. Cincinnati Group, 1875, p. 1. Monticulipora clavacoidea James, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 236. James and James, ibid., 1888, 11, p. 25. J. F. James, ibid., 18, 1895, p. 84. Monticulipora (Monotrypa) clavacoidea Nicholson, Genus Monticulipora, 1881, p. 182, fig. 37. Leptotrypa clavacoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 159. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 42. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 854, pi. 20, figs. 3, 3c. Maysville (Corryville): Cincinnati, Ohio, and vicinity. LEPTOTRYPA CLAVIPORMIS Ulrich. See Stigmatella claviformis. LEPTOTRYPA CLAVIS Ulrich. See Stigmatella clavis. Leptotrypa? cortex Ulrich. Leptotrypa cortex Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 162. Eden (Economy): Covington, Kentucky. Holotype. Cat. No. 43677, U. S.N.M. LEPTOTRYPA DISCOIDEA Ulrich. See Amplexopora? discoidea. LEPTOTRYPA? DYCHEI Nickles and Bassler. See Stigmatella dychei. LEPTOTRYPA FILIOSA Ulrich. See Amplexopora filiasa. Leptotrypa hexagonalis Ulrich. Leptotrypa hexagon^lis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 455, pi. 36, figs. 6, 6a; Geol. Minnesota, 3, 1893, p. 317. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 208-210, figs. 112-114. Black River (Platteville) : Mineral Point, Janesville, and Beloit, Wisconsin; Calhoun County, Illinois; Minneapolis, Minnesota. Middle Ordovician (Kuckers): Near Jewe, Esthonia, Russia. Holotype and pleviotypes Cat. Nos. 44057, 57293, U.S.N.M. 718 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. LEPTOTRYPA INFORMIS Ulrich. See Cyphotrypa informis. LEPTOTRYPA? IRREGULARIS Nickles and Bassler. See Stigmatella irregularis. LEPTOTRYPA ^IACULATA Ulrich. See Spatiopora maculata. Leptotrypa minima Ulrjch. Leptotrypa minima Ulrich, Jour. Cincinnati Soc. Nat. Hist., G, 1883, p. 159, pi. 6, figs. 2-2b. Maysville (Bellevue): Hamilton, Ohio. Cotypes.C&t. No. 43676, U.S.X.M. LEPTOTRYPA OFFULA Ulrich. See Paleschara? offula. Leptotrypa ornata Ulrich. Leptotrypa ornata Ulrich, Jour. Cincinnati Soc. Xat. Hist., 6, 1883, p. 160, pi. 6, figs. 4, 4a. Maysville (Corryville) : Cincinnati, Ohio, and vicinity. Cotypes.Czt. Xo. 43678, U.S.X.M. LEPTOTRYPA SEMIPILARIS Ulrich. See Cyphotrypa semipilaris. Leptotrypa? spheerion (Hall). Paleschara? sphserion Hall, 28th Ann. Hep. Xew York State Mus., doc. ed., 1876, pi. 8, figs. 14, 15. Paleschara? (Chaetetes?) sphserion Hall, ibid., mus. ed., 1879, p. 121, pi. 8, figs. 14, 15; llth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 247, pi. 7, figs. 14, 15. Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 592, fig. Leptotrypa sphaerion Xickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 299. Xiagaran (Waldron): Waldron, Indiana. LEPTOTRYPA STIDHAMI Ulrich. See Cyphotrypa stidhami. LESUEURILLA Koken. See Maclurites Lesueur. LEVISIA Walcott. Genotype: Agraulos agenor Walcott. Levisia Walcott, Smiths. Misc. Coll., 57, no. 4, 1911, p. 86; Cambrian Faunas of China, Carnegie Institution, 3, 1913, p. 177. Levisia nasuta Walcott. Levisia nasuta Walcott, Smiths. Misc. Coll., 57, 1911, p. 87, pi. 17, fig. 5, and figs. 7, 7a; Cambrian Faunas of China, Carnegie Institution, 1913, p. 178. Ozarkian? (Le vis-erratic): Point Levis, Quebec. Levisia richardsoni Walcott. Levisia richardsoni Walcott, Smiths. Misc. Coll., 57, 1911, p. 86, pi. 17, figs. 4, 4a; Cambrian Faunas of China, Carnegie Institution, 1913, p. 178. Ozarkian ? (Levis-erratic) : Point Levis, Quebec. o LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF C /fa LIBRARY OF THE UNIVERSITY OF CALIFORNIA QJS^\D LIBRARY OF THE UNIVERSITY OF C LIBRARY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF C RY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA RY OF THE UNIVERSITY OF CALIFORNIA LIBRARY OF THE UNIVERSITY OF CALIFORNIA OF THE UNIVERSITY OF CALIFORNIA QJ/~^\ LIBRARY OF THE UNIVERSITY OF CALIFORNIA (3\N ffo