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 Descriptions of two new species of Ammo- 
 nites from the Cretaceous rocks of tiie 
 Queen Charlotte Islands. 
 
 By J. F. Whiteaves. 
 
 Iw 
 
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 i 
 
 ?->* 
 
 I 
 
mfmmmm 
 
 
 Descriptions of two new species of Ammo- 
 nites from tine Cretaceous rocks of the 
 Queen Charlotte Islands. 
 
 By J. F. Whiteaves. 
 
/ 
 
RECORD or SCIENCE. 
 
 PLATE VII. 
 
 I 
 
 m 
 
 
 ^ « 
 
 /« 
 
 
 ■|S 
 
 1 ', 
 
 ■^ -^' 
 
 2b 
 
 L. Ml ambe . del O.E.Pr ud Homme.liLh 
 
 AMMONITES FROM Q.C. ISLANDS. 
 
Reprinted from the Canadian Record of Science, October, 1893." 
 
 Columbia, the 
 
 o (JretaceouH 
 
 3 the writer 
 
 •U there are 
 
 ici'ibed, both 
 
 Descriptions of two new species of Ammo- 
 nites from the Cretaceous rocks of the 
 Queen Charlotte Islands.* 
 
 By J. F. VViiiTBAVKS. 
 
 Through the courtesy of Dr. C. F. Neweombe, of Victoria, 
 V. I., and by kind permission of f inr" and members 
 
 of the Natural History Society 
 whole of their collection of the 
 rocks of that province has recently 
 for examination and study. Araon^i, 
 two small Ammonites which appear to t>« 
 of which are labelled as having been collected at Skidegate 
 Inlet, {I <'. I., and presented to the society by Mr. James 
 Deans. Jioth are clearly referable to the family of Stephano- 
 ceratida' of Neumayr, as amended or re-defined by Zittel. 
 One is an imperfect specimen of a small species of Olcoste- 
 phanus, nearly related to 0. Jeannotti (the Ammonites Jean- 
 uotti of d'Orbigny ') of the Neocomian of Prance and Switz- 
 erland. The other is a mce perfect but apparently not 
 quite iull-grown specimen of a species of Hoplites, of the 
 type of H. sinuosus (the Ammonites sinucsus of d'Orbigny •) 
 
 ' Pal6ont. Franc. Terr. Cret., vol. i, \u 188, pi. 56, figs. 3-5. .'•,•• *. 
 
 '•!Ib.,p. 204,pl.6O, fig8.1-3. *. ^, *. . • .; 
 
 * Communicated by permigsion of the l)ireotor ot the Geplogjc^l 
 Survey Department. * •'.*.•,, .* '• '. 
 
 • * • 
 
 t r 1 
 
442 
 
 Canndian Record of Science. 
 
 of the Fronch Xeocomiun. Tho exact clmiact«rH of the 
 sutuiul line are unfortimatoly not well Hhown in either of 
 these HpecimonH. The two Hpocios ropreHented may be pro- 
 visionally described as follows, with the proviso that the 
 diagnoses of each are, of course, siibjoct to such modifi- 
 cations or amplifications as may bo made necessary by the 
 discovery of more perfect spoeimens. 
 
 • • • • 
 
 ' * > 
 
 Olcostepiianus (Astibria) Deansii. (Sp. nov.) 
 Plata V[ J, figs, land la. 
 
 Shell small, compressed at tho sides and narrowly rounded 
 at the ])eriphery : umbilicus occupying rather Ies8 than one- 
 third of the entire diameter. Volutions three or four, in- 
 creasing rapidly in size, espi iaily in the dorso-lateral direc- 
 tion, and rather closely embracing, about two-thirds of the 
 sides of the inner ones being coveiod, tho outer one a little 
 higher than broad : aperture elliptical m outline but deeply 
 emarginato l)y tho encro:;chmeiit of the preceding volution. 
 
 Surface marked by numerous, closely arranged, small 
 but distinct, though not very prominent, flexuous, trans- 
 verse i-ibs, which bifurcate about tho middle of tho sides and 
 then pass uiiintonuj>todly over the periphery. 
 
 Tiio sutural lines are so crowded togoth<ir .md confused 
 that, although faii-ly well preserved in places, it is scarcely 
 possible (o follow the details of any single one. Tho 
 siphonal ssuldlo, however, is small, a littlo higher than 
 broad, with a minutely trifurcato a])Ox, and an appressod 
 spur on each side below. The fii-st lateral saddle is large, 
 ramose and unequally bipai-tito or obscurely tripartite at 
 its summit. Tho siphonal lobe is large and symmetrical, 
 with three branchlets on each side, two of which are lateral 
 and one terminal, but the lowest of tho two pairs of lateral 
 branchlets is much the smallest of the throe pairs. 
 
 Tho only specimen collectbd is considerably eroded near 
 tho apertui-o, as represented i fig. 1, but in the uneroded 
 !)ortion the maximum diameter is about forty millimetres, 
 »i.d the groatost breadth fourteen,. 
 
 
 I 
 
 I 
 
DescrifUionx of Two New Species of immonilGs. 443 
 
 The wriiei- han much plonsme in UHHociuting wit:, ^bis 
 special t'je nuniv. of Hh diHCMvorer, Mr. .lanio.s \)mm of 
 Vlcforiii, V. I., who accoinpaniod Mr. Jamos Ri( hardnon in 
 his exploration of the Queen » harlotte iHlandw, in 1872, and 
 who has since proseotod some unusually perfect speaimens 
 of the fossils of the Crotaceous roc'cs of those islands to the 
 riiuseum of the Geoloi,'ioal Survey Department at Ottawa. 
 
 Dean&ii appears to belong to the small group of Am- 
 monites of which Oli'ostephanus Astim is the type, and for 
 which M. Pavlow has recently (1891) proposed the generic 
 or .ibgcnoric r,ame Actieria' According to M. I'avlow, the 
 Olcostephani of the group of 0. Astien form u natural 
 group, a ge;fus (Asfienn) if one pr'ifers to consider the 
 Oicostephani as a family, or v. subgenus if one would rather 
 regai'tl Olc -ephanus as a genus. 
 
 The shape and surface ornamentation of O. Deamii are 
 very similar to those of 0. Jennnottl. \\\x\ ' C Jeannotti 
 the ribs bifurcate nt the umbilical margin, and are repre- 
 sented as so prominent as to everywhere break the general 
 contour if the shell is viewed laterally. The siphonal 
 saddles of 0. Jeannotti, ♦oo, are described as broad, and the 
 figures show that they are much broade. than high. In 0. 
 Deansii, on the other hand, the ribs bifurcate half way 
 way Jioross the sides, at a considerable distance from the 
 umbilical margin, and are not sufficiently promitient lo 
 interrupt the continuity of the outline of the sboll in a lull 
 side view. The siphonal saddles of 0. Deansii, also, are 
 narrow and, as already stated, a little higher than broad. 
 
 The genus Olcostepkanus, which was founded by Neumayr 
 in 1875, is abundantly represented in the Uppci Jurassic 
 and Lower and Middle Cretaceous rocks of Kurope. The 
 only other species (hat has been definitely recorded from 
 the Canadian Cretaceous is 0. Loganianus (nobis), from 
 Skidegato inlet, whose characters are still very imperfectly 
 known. As stated elsewhere," however, it is most jjrobable 
 that the so-called Haploccras Ciimshewaevse (nobis), from 
 
 ' Bull. Soc. Imp. Naturalistea de Moscoii, Annde W,)\, N- >Str., vol, v, |), 491, 
 - Trans. Royal Soc. CsJia4a, yol. ^, pect. iv, p. 114, 
 
 I 
 
444 
 
 Canadian Record of Science. 
 
 I 
 
 Cinnshevva Inlet, belongn to that section of the genus Olco^ 
 stephan-' , for which M. Pavlow has since proposed the sub- 
 genus Virgatites} 
 
 HoPLiTES Haidaquensis. (Sp. nov ) 
 Plate VI [, tigs. 2, 2 rt it 2 6. 
 
 Shell small, strongly costate and widely umbilicated, 
 the umbilicus, as measured from suture to suture, occupy- 
 ing about one-third of the entire diameter. Volutions 
 about three, though the nucleus is not preserved in the 
 only specimen collected, increasing rather rapidly in size 
 and slightly embracing: the outer one moderately convex, 
 a little broader than high, the outline of a transverse sec- 
 tion being subpentagonal if made through one of the ribs, 
 or not far from circular if in the centre of one of the grooves 
 between them : aperture nearly circular but shallowly emar- 
 ginate by the enci-oachment of the preceding volution. 
 
 Surface marked by lai-ge and prominent, simple^, and 
 nearly wtraight, transverse ribs, which are separated by 
 I'ather bi-oad concave grooves. The ribs, which are equal 
 ii. length, are most elevated on the outer or peripheral por- 
 tion of the last volution, and in the median line of the peri- 
 phery there is a single angular notch on each rib which 
 scarcely interrupts the continuity of the r'b. 
 
 vSutural line not clearly defined, but apparently not very 
 complicated nor much branched. The first and second 
 lateral saddles appear to be much broader than high, and 
 <loubly incised rather than ramose at the summits. The 
 first lateral lobe seems to be trifurcate above and unusually 
 small, though apparently much larger than any of the 
 others except the siphonal lobe. 
 
 Maximum diameter of the only specimen collected, 
 twenty nine millimetres: greatest breadth of the same, 
 twelve mm. 
 
 The specific name suggested for this little Ammonite is a 
 modification of the word Hai-dakwe-a, which Dr. G, M. 
 op. oit , p. 47i 
 
Descriptions of Two New Species of Ammonites. 445 
 
 Dawson quotes as the Indian name for the Queen Charlotte 
 Islands, in his report on these islands, published in the 
 lieport of Pi'ogress of the (ieological Survey of Canada for 
 1 878 79.' The shell itself appears to belong to the sub- 
 group Dentati-i jgulares of the Dentati. of Pictet's classifi- 
 cation of the Ammonites in the ' l'al<iontologie Suisse," ^ 
 and to that section of the genus Hoplites which Zittel calls 
 the group of Ammonites interruptus? In many of its char- 
 acters it is veiy similar to Hoplites sinuosus, but it seems to 
 have fewer and more distant ribs than that species and a 
 different sutural line. Thus the type and only known 
 specimen of B. Haidaquensis has twenty-two ribs on the 
 outer volution, while that of H. sinuosis, which is almost 
 exactly the same size, is said to have thirty-four. The 
 sutural line of H. Haidaquensis seems to be more like that 
 of H. crassicostatus, as figured by d'Orbigny,* in which the. 
 first and second lateral saddles are represented as broader 
 than high, whereas the corresponding saddles of H. sinuosus 
 are represented as higher than broad. 
 
 The genus Hoplites also was proposed by Neumayr in 
 1875, and is regarded as eminently characteristic of the 
 Cretaceous epoch. //. Haidaquensis and H. Canadensis 
 (nobis),^ from the Clearwater shales and Peace Eiver sand- 
 stones of the district of Athabasca, are typical and chai-ac- 
 teristic Canadian species of this genus. H. McConnelli^' 
 (nobis), from the ( 'learwater shales of the Athabasca, ap- 
 pears to be rather an aberrant member of that section of 
 the genus which Zittel calls the "group of Ammonites crypto- 
 ceras." It is also most probable that the fossil from Coraox, 
 Vancouver Island, which Meek doubtfully referred to his 
 genus Placentieeras, under the name P. Vancouverense,' is 
 also referable to Hoplites. 
 
 » p. 104 B. 
 
 ^ Prem. partie, p. 328. 
 
 ^ Handb. der Palueont., vol. ii, p. 476. 
 
 * Pal^ont. Franc, Ter. Cret., vol. i, aUas, pi. 59, fig. 3. 
 
 f" Trans. Royal See. Canada, vol. x, sect, ivi p. 118, pi. xi, tigs. 3-5. 
 
 «Ib.,p, 117, pi. xi, figs. 2,2 a rf-/). 
 
 ' Bull. Geol. and Qoog. Surv. Terr., vol. i, No. 4, p. 370) pi. vi figs. 1, 1 a-c 
 
440 
 
 Canadian Record of Science. 
 
 With the jjermission of Mr. Deans, the types of the two 
 species desei-ibed in this paper have hoeti presented to the 
 museum of the Geological Survey by the membei-s of the 
 Natural IFistory Society of British Columbia. 
 
 EXPLANATION OF PLATE VIL 
 Oi.cosTKrnAxus (Astiehia) Dkansk. 
 Fi^r. 1.— Side view of tlie only specimen collected. 
 
 la.— Outline of the same, from another point of view, to show 
 the proportionate breadth of the shell and probable 
 shape of its aperture. 
 
 HoPLiTEs Haidaqiensis. 
 Fig. 2.— Side view of the only specimen collected. 
 
 L'a.— Another view of the same, to show the characters of the 
 
 peripheral region, near the aperture. 
 26.— Front view of the same, in outline, to show the shape of 
 the aperture, etc. All the figures of natural size.