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W^ I
II
CANADIAN STROMATOPOROIDS.
By .1. K. Whitk.avks
1
Heprinledfrom the Co.nndmv Heconl of Sdeiice, Jidy, 185H5.
I
''RepritUed/rom the Canadian Record of Science, July, 1896"
I
Canadian Strom atoporoids.
By J. F. Whiteaves.i
In Canada, as elsev/liere, only the more obvious
characters of the Stromatoporoitlea were examined l)y the
first students of .this ditlicult group of fossils, and it is
probable that some of the earlier species proposed will
have to be abandoned, as inadequately defined.
Of late years, however, these organisms have been
studied much more systematically, especially by Professor
H. Alleyne Nicholson, of the University of Aberdeen, and
the minute structure of the diHerent species has been
elucidated and their probable affinities ascertained by
means of thin microscopic sections.
While engaged in the preparation of his monograph of
the British "species for the Paheontographical Society,
Professor Nicholson kindly examined and either identified
or described, specimen:: of most of the Canadian species of
Stromatoporoids that were then represented in the
Museum of the Ceological Survey at Ottawa, but some
additional material has since been received at that
Museum, especially an interesting series of specimens
1 Co,n,uunioatea by per-ussion ,.f the Uire..to,- of the Geological Survey of Canada.
Y
130
Canadian Record of Science.
from the ((Uilena) Trenton of Uke Winuipecr and its
vicinity, which luis yet to be exiuuinea. The determina-
tions and descriptions of C.^anatlian Stromatoporoids are
scattered through many publications that are not always
easily accessible, and the present paper, therefore, will
consist of a stratigraphical and systematic list, wi^-h
references, 3tc., of all the species that have either been
recognized or even supposed to have been recognized
in Canada, or described from Canadian localities,
commencing with those that have been examined micro-
scopically.
4
A. Species that have been examined with the
MICllOSCOl'E.
{Camhro- Silurian species.)
Clathrodictyon vauiolaue, Itosen. (Sp.)
Stromatopora variolaris, Von Rosen. 1867. Ueber die
Natur der Stromatop., p. 01,
pi. 2, tigs. 2-5.
Clathrodicti/on variolare, Nicholson. 1887. Ann. and Mag.
Nat. Hist., ser. 5, vol. XIX., p. 4,
pi. 1, ligs. 4-6.
Nicholson. 1889. Mon. Brit. Stro-
matop., pt. 2, p. 150, pi. 18, tigs.
1-5, and pi. 17, tig. 14.
Specimens which appear to be referal»le to this species
were collected from the Hudson lliver formation at the
Jumpers, Anticosti, by J. Richardson in 1856, and at Cape
Smyth, Lake Huron, by Dr. R. iiell in 1859. It is the
species referred to on page 304 of the Geology of Canada
.as Stromatopora concentrica, wiiich, according to Professor
Nicholson, "so far as at present known" (in 1891), "is a
purely European species and entirely confined to the
Devonian rocks."
• t • • *
• • * «
c » • •
• 4 ,"
• • • • •
•• • •
• • • «
• • • • •
• •
• t •
• • • . • •
4
Canadian Stromatoj>oroids.
131
'
Labischia Canadensis, Nicholson and Murie. (Sp.)
Stromatoceriuni Canadense, Nicholson and Murie. 1878.
Journ. Linn. See, Zool., vol.
XIV., p. 2?3, pi. 3, figs. I)
and 10.
LabechiaCa7iadensi!i,^[chohon. 1886. Mon.Brit. Stromatop..
pt 1 , pi. 2, figs. 3-5 : and Ann. and
Mag. Nat. Hist., ser. 5, vol. XVIII.,
pi. 14, pi. 2, fig. 5.
" " Nicholson, 1891. Mon. Brit. Stroma-
top., pt. 3, p. 163, pi. 20, fig. 9.
In Canada, so far as the writer is aware, this species has
only been found in the Trenton limestone at Peterborough
and Lake Couchiching, Ontario. At present it is not
represented in the Museum of the Geological Survey at
Ottawa.
Labechia Huuonensis, Billings. (Sp.)
Stenopora jTuroncnsis, Billings. 1865. Geol. Surv. Canada,
Pal. Foss., vol. I., p. 185.
Tetradiiim Huronense, Yoo\-Ci{\>iiVim\). 1883. Contr. Micro-
PaljL'ont. Silur. rocks of Canada, pi.
7, figs. 1 and la, but not figs. 1, h-e.
Labechia Ohioensis, Nicholson. 1886. Mon. Brit. Stroma-
top., pt. 1, p. 32, fopt-note, pi. 2,
figs. 1 and 2 : and Ann. and Mag. Nat.
Hist., ser. 5, vol. XVIII., p. 13, pi. 2,
figs. 1 and 2.
Labechia montifcra, Ulrich. 1886. Contr. Anier. Palffiont.,
vol. I., p. 33, pi. 2, figs. 9 and 9a.
The types of Stenopora Huronemis are from the Hudson
River formation at Cape Smyth, Lake Huron, where
several fine specimens were collected by Dr. II. Bell in
1859, and not by Mr. A. H. Foord as supposed by Professor
Nicholson. Mr. L. M. Lambe, who has recently studied
these specimens somewhat exhaustively, is convinced that
i:i2
Canadian Jiecard of Science.
Lahechia Ohioennis, Nicholson, is identical with Sfmopora
HuronenHis, and that the species ouj^ht to be called
Lahechia Huronends. Most of the specinjens of this coral
from Cape Smyth are lar^e and soirie of thorn are massive,
but one encrusts a colony of Tetrad in m fihratatn and
another nearly covers a shell of Vnrforera.s Podiimina. Of
the six specimens figured by Foord under the name
Tetradium Harouense (oj). cit., pi. 7), Mr. Limbe
finds that while fig. 1 represents a portion of a specimen
of Lahechia IfaronenKis encrusting Tetrad imnjihr a turn, and
fig. la a ])ortion of a massive specimen of L. Haronenais,
that figs. 1, h-e are sections of Tetradimn Jihrattim, Safford.
A few specimens of L. ffcronejiMS were collected from
the Hudson Kiver formation at Club Island, Lake Huron,
by Dr. It. Bell in 1865, and from rocks of the same
geological horizon on Lhe Credit River at Streetsville, by
Mr. J. B. Tyrrell in 1888.
liEATKiCEA NODULOSA, Billings.
Beatrieea iiodiUosa, Billings. 1857. (ieol. Surv. Canada,
Hep. Brogr. 185:3-56, p. 344
Hyatt. 1865. Am. Journ. Sc, vol.
XXXIX., p. 266.
Nicholson. 1886. Mon. Brit. Stroma-
top., pt. 1, pp. 86, 88 and 89, pi., 8,
figs. 1-8.
In his " Catalogues of tlie Silurian fossils of the Island
of Anticosti," Mr. Billings says that this species was
coUectcul by Mr. James Richardson in 1855, from the
Hudson R'ver formation at Wreck Roint, Salmon River,
and Battery Roint, Anticosti, and from Division 1 of the
Anticosti group at Macastey Bay. Specimens of the same
Species in the Museum of the (geological Survey at Ottawa
are labelled as having been collected by Mr. T. C. Weston,
in 1865, from the same formation at and near the West
end lighthouse, at English Head, and at Gamache (or
BiiBMB
I
Cancuiiati StromuU^poroiilii.
\X\
Ellis) Bay, Aiiticosti. Professor A Hyntt, who hiis
collected muiiy si)eciinen.s of Ji. nodulom ut variouH
localities on the same island, says that the size of the
species, "as nearly as could be inferred from fraj^ments, is
not over four feet lonj^, hy from tlii-ee to Jive inches
in diameter at the larj^'cr end." To the nakcid eye some of
the specimens look cs if they were encrusteil by a parasitic
species of Laherkia,
A silicitied specimen which aj>pears to he referable to
this species, thou«,'h its internal structure is almost
obliterated, was collected by Mr. Weston in 1884 from the
upper beds of the Hudson Uiver formati(jn at Stony
Mountain, Manitoba.
r)KATl{I("EA UNDULATA, Billint>;s.
Bmtricen tnidulahi, lUllings. 1857. Geol. Surv. Canada,
Hep. rroj,'r. LS.l.'VoG, p. 844.
" " Hyatt. 1805. Amer. Journ. Sc, vol.
XXXIX., p. 266.
r.illings. 1865. Can. Xat. '
ser. 2, vol. II., p. 405, fi^r "
Nicholson. 1886. Mon. Bri.
top., pt. 1, pp. 86 and 89.
Numerous specimens of this remarkable fossil were
collected from the Hudson Kiver formation and from
J)ivisions 1 and 2 of the Anticcsti group, at several
localities on the island of Anticosti, by Mr. J. liichardson
in 1856, by Messrs. Verrill, Shaler and Hyatt in 1861, and
by Mr. Weston in 1865. Characteristic examples of
B. undidata have since been collected from the Hudson
River formation at Snake Island, Lake St John, P.Q., by
Mr. Richardson in 1857 ; at iiabbit and Club islands. Lake
Huron, by Dr. R. Bell in 1859 ; and in the " Upper beds"
at Stony Mountain, Manitoba, by T. C. Weston, and A.
McCharles in 1884. A specimen in the Museum of the
Geological Survey at Ottawa, collected by Mr. RicharQjon
I'M
Cavadian Umml of Scirnce.
at (fanuuhe Hay, Aiiticosti, which is impeituft at Iwth
viuh, is ten feet five inches in Icnj^'th, as stated by Mr.
liillings, and a similarly iinjMM-fect sjH'ciinen collected by
Messrs. Verrill, Shaler and Hyatt, is said to be thirteen
feet and r. half in len«,'th. Professor ITyatt is of the
opinion that the length of an entire and adult sjuicirnen
of tiiis species was " certainly not less than twcntv feet."
(Silurian species.)
AcTIXOSTKOMA MATUTINU.M, Nicholson.
ActiiLostroma inattUuium, Nicholson. LSOl Ann. and Mag.
Nat. Fist., ser. (i, vol. \IL, p.
.'522, pi. 0, figs. 1 ..nd 2.
L'Anse an (lascon, five miles and a half east of Port
Daniel, in the Jkie des Chaleurs, \h\ Pv. Pell, 1862: cne
specimen, from Division 1 of the Chaleur group, which is
supposed to be " about the horizon of the Niagara lime-
stone." The Stromatopora roncoUrim of the list of Poit
Daniel fossils on page 444 of the (leology of Canada
is almost certainly this species.
Clathuodictyon VESicuLOsr.M, Nicholson and Murie.
Olathrodicfi/im vesiculosiim, Nicholson and Murie. 1878.
Journ. Linn. Soc, Zool., vol.
XIV., p. 220, pi. 2, figs. 11-13.
Nicholson and Pt. Etheridge,
jun., 1880. Mon. Silur. Foss.
Crirvan, p. 238, pi. 19, fig. 2.
Nicholson, 1887. Ann. and Mag.
Nat. Hist., sp.r. 5, vol. XIX., p.
1, pi. 1, figs. 1-3: 1889, Mon.
Biit. Stromatop. pt. 2, p. 147,
pi. 17, rigs. 10-13, and pi. 18,
«S. 12.
Specimens which liave been recently identified with
this species were collected from the Niagara limestone at
Vanadia n Sfromatnpnroids.
135
Lake Tciuis/aipin^' by Sir V^', K. I. )«;iin in 184"), at
Thorold, Oiilurio, 1)_^ K. UilliiiyH in IHf)?, utid in tlie
Anticosti f^rou)) at .luii('Li<»n Clitl' and tlu; we»fc side
of (lainaclie or Kllis Hay, Ai.ticosLi, by T. ('. Weston in
IHda. It apoears bo he very ahundant at Lake Temi.s-
caniin}^, where speeiuiens were reeently (-ollected hy Dr. J?.
Hell in I .SIC, and hy Mr. A. K. Harlow in IX!);! und 18<)4.
(.'LATIIHODfCTYO.N KAHTKUATUM, Nieholson.
Clatkrodirt iimi fast itj'uit II )ii , Nictiolson. 1 .SH(). Mon. l>rit.Stro-
niatop., pt. 1. p. 4.'! fii^s. 3, a-h :
and, 18H7, Ann. ind Mag. Nat.
Hi.st., ser. o, vol. .\ IX., p. 8, pi. 2,
Hg.s. o and 4 : also, 1888, Mon.
Hrit. Stroniatop., pt, 2, p. 152,
pi. 1!), figs. 1-5.
In the Guelph formation at (Denelg Township, six miles
from Durham, where a few specimens were collected hy
Mr. Townsend in 1884.
Clathkodictyox osTioi.ATi'M, Nicholsou.
Sfrnrnataporaodiolaia,'Nicho]sou. 187.'1 Ann. and Mag. Nat.
Hist., ser. 4, vol. XII., p. !)0, pi. 5,
figs. 1 and la .• 1874, Rep. Pal. Prov.
Ont., pi. 1, Hgs. 1 and la: 1875, liep.
Pal. Prov. Ont., p. Gl] : and, 1878,
Journ. Linn., Hoc. ZooL, vol. XIV.,
pi. 2, figs. 1 and 2.
Clxfkrodu'fi/on {Stromatopora) ostioloia, Nicholson. 1886.
Mon. Brit. Stromatop., pt. l,p. 14.
Clnthr()diciij()n.odlolatum,W\Q\\o\s,o\\. 1887. Ann. and Mag,
Nat. Hist, ser. 5, vol. XIX., p. 11,
pi. 3, figs. 1-3.
The type of t; '^ species was collected at Guelph, in the
Guelph formatioi., by Mr. John Wilkie, not later than the
year 1873, and specimens have since been obtained at
1'''6 Canadian Record of Sew, ice.
Klora by Mr. Davi<l P.oyle in 1 880, and at Durban, by Mr
'losepb JovvDsend in 1884. *'
Stkomatopoka anti(,ua, Xicbclson and Murie.
Pachystroma antiqaa, Nicbolson and Murie. 1878. Journ.
r^inn. Soc, Zoo]., vol. XIV., p 2'?4
^,^ Pl- 4, fio-s. 2-5.
Stromatopora ontigua,mvho\,ou. 1880. Men. Prit. Stroma-
top.,pt. l,p. I7,p]. 5^^^^., ^_^^
ilic types of tins species were collected )>y Professor
Nicholson fro,n tbe Niagara lin.estone at Tborold, Z
there is a single specimen in the Museum of the GeoWicul
Sur.ey at Ottawa, which was collected from the Gud
formation at Durham, by Mr. Townsend in 1884.
Stromatoj'oka Galtensis, Dawson. (Sp.)
Camstroma aalte..e, Dawson. 1875. Life's Dawn on tbe
Kiiitii, p. 100 : and, 1879, Quart.
Journ. (Jeol. Soc. Lond., vol XXXV
p. 52. ' ' "
Stromafopora GaltenMs, Xicbolson. 1891. Mon. Jbit. Stro-
„ , iiiatop., pt. :!, p. 17;;
Hespeler, T. ( '. Weston, 1807 : one specimen. l>rofes ,r
Nicho son, who has examined a portion of this specimen
ays (op. cit.) that its minute structure "is pricticX
destroyed by dolomitization, but all its general eta s
would lead to the belief that it is very closely reb Id o
i^t^tT;;-^^-' 1^--- -d is probably ilj^tl
spencer, from the Niagara lin.estone near Hamilton, doe
not appear to be in any way distinguishable as regards
general characters from C Galta,., Dawson, and^^tha h
IS strongly disposed to think that it is really identic^
with S. t,,.a Eosen. If the above view should . T
be correct, then C^nostro^ia Gciense, Dawson, and^
Canadian Strom atoporoid.H.
ISI
condellatum, Spencer, must be considered as synonyms of
S. typica, liosen."
It remains to be seen wbetber Spencer's C. comtt'llatum
is the same as Hall's Srnmafopora vonsMlata (Pal. N.
York, vol. iL, 185l>,p. :^,24, pi. 72, figs. 2, a-h), which latter
species has nut been examined microscopically.
Stromatopora. constellata, Spencer. (Sp.)
Crmxosh'oina comtellata, Spencer. 1884. linll. :Mns. Univ. St.
Missouri, vol. I., No. 1, p. 48, pi. 0,
fig. 11.
" Xear the top of the Niagara series, at Carpenter's lime-
kiln, two miles and a half south of Hamilton, where it
is abundantly found associated with Ca^nostroma hotnjoi-
dcum." Spencer. See the remarks on the preceding species.
Stromatoi'ORA Hudsonica, Dawson. (Sp.)
Cminopora Hiuhouicu, Dawson. 187!). <,)uari. Journ. Geol.
Soc. Loud., vol. XXXV., p. 52, pi. 4,
fig. 9, and pi. 5, fig. 10.
Stromatopom HvAhonica, Nicholson. 1891. Mon. lirit. Stro-
matop., pt. :'), \). 172: and Ann.
and Mag. Nat. Hist., ser. 6, vol.
VII., p. ;! 12, pi. 8, figs. 1-3.
The type of this species was collected by Dr. E. Bell in
1878 on tiie Albany Iliver, Hudson's lUy, in rocks which
are said to be of rpi)er Silurian age, though ui)ou what
evidence is not stated. Another specimen, which has
since been identified with S. Hudsonlca, was obtained by
Dr. II. liell in 1878 at Cape Churchill.
Stjiomatopora Carteri, X'icholson.
Stromatopom Carteri, Nicholson. 1891. Mon. Brit. Stro-
matop., pt. n, p. 174, pi, 1, figs. 6-7 :
and Ann. and Mag. Nat. Hist., ser. 6,
vol. VII., p. 'MA, pi. 9, figs 5 and G.
138
Canadian Record of Science,
Inn??' T^^ .^"'"'^^^'" "^■'^'"P^^ ^ '"^ve seen is from a
SVHING08TK0MA EiSTiGoucHExsE. Spencer. (8p.) ■
OmioMroma MistAgoachense, Spencer. LS.S4. liull. Mus. Univ
Missouri, vol. I., No j^ p _^j,"
%'%o.fr...r. Iilstigoucke,se,^iM^,,, ,,S8(J. Mon. Brit.
Stroniatop.,pt. l,p.97^pl jj_
figs. 11 and 12: and, 1891,'
Ann. and Mag. Nat. Hist '
ser. 6, vo]. VJI., p. 324, pi. 8,'
figs. ^-S.
In rocks Lelieved to be of the -.^o of the Lower Holder
(Devonian S2mies.)
AcmosTROMA EXPAXSUM, Hall and AAliitfiel,!. (Sp.)
>S^.'o;M./o^,om expansa, Hall and Whitfield. 1873. Twenty
third Keg. Hep. X. Y. St. Cab. Nat
jr , ^ist., p. 22(], pi. 9, fig. 9.
AcHnostronra c:cpansum, Nicholson. 1891. Ann. and Ma.
Nat.Hist.,ser.6,vol.yiI.,p.;.]io
pi. 10, figs. 1 and 2.
^"<»a,at asmall,.,l„„.lon the south-east .si.le of Itowson
;ay, where two .,,eei,„e„s were collected by Mr J
lyrrell m 1889. ^ ' ^^'
Canadian Stromatojm'oids. 139
AcTiNOSTKOMA Tyhrellii, Nicholson.
Actinostroma Tyrrdlii, Nicholson. 1891. Ann. and Mag.
Nat. Hist., ser. 6, vol. VII., p. 317,
pi. 8, figs. 4 and o.
Apparently not nncomnion and in fine condition in the
Stringocephalns limestone at five different localities on the
shore and islands of the southern portion of Dawson Bay,
Lake Winnipegosis, where specimens were collected by
J. B. Tyrrell and D. B. Dowling in 1889.
ACTINOSTROMA WlIITEAVESII, Nicliolson.
Actinostroma Whiteavesii, Nicholson. 1891. Ann. and Mag.
Nat. Hist, ser. 6, vol. VII.,
p. 320, fig. 2, and pi. 9, figs.
3 and 4.
Peace Eiver, ne^'r- the mouth of Little lied Kivei',
Professor Macoun, 1875 : two specimens.
Actinostroma fexestratum, Nicholson.
Acti7iostromafencsirat ton, Nichohon. 1889. Mon. Brit. Stro-
matop., pt. 2, p. 146, pi. 17, figs.
.8 and 9: and, 1891, Ann. and
Mag Nat. Hist., ser. 6, vol. VII.,
p. 322, pi. 10, figs. 3 and 4.
North-west shore of Lake Manitoba, at Pentamerus
Point, three miles and a half north of the mouth of Crane
Kiver, J. ll Tyrrell and J. F. Whiteaves, 1888 ; several
specimens. Lake Winnipegosis, on two small islands at
the southern end of Dawson Bay ; also on the south-
western shore of Dawson Bay a little to the west of Salt
Point, and at the south end of Kowan Island, in the
western jwrtion of the bay, J. B. Tyrrell, 1889 : one
specimen from each of these localities.
I'lO Canadian Record of Science.
( 'LATHHowcTvoN CELLULOsuM, Nicl)oIson and Murie.
Clathrodietyon celhdo.mn ,^[,hohon an.lMurie. 1878. Journ.
Linn. Soc, Zool., vol. XIY., p.
221, })].^ 2^ tigs. 9 and 10. Nichol-
son, 1887. Ann. and Maw Nat.
Hist., Her. 5, vol. XIX., p. 11, pi. 2^
figs. 7 and 8.
"Not unconMnon in the Corniferons Lin.estone (J)evon-
^ anacia. AichoLson.
CLATIfltODICTVOW LAXUM, Niciiolson.
Clathrodiet!,on /......Nicholson. 1887. Ann. and Mag. Nat
Hist., ser. ->, vol. XIX., p. 12^?!. 3
figs. 4 and ,").
, :T ■ ,^^ '""' ''?'«'-•'■"«" i" tl'e Museum of the
. «log,cal ^u,..ey at Ottawa, which was ulctifie,! w h
s speces h, Vofessor Nicholson, was collected ™
ivev. vv . Ainuer .Seaborn m 1884.
CLATmtowcTvo.v RETU-OBME, Nicholson and Murie. (Sp.)
%/«*Wy.„ ,r<,/„™., Nicholson and Murie. 1878. .loura
Linn. Soc, Zool., vol. XIV., p. 222
/-.;,„ ,-, f'- -■ %• 14. and pi. 3, HfTs. 1-3
Ck„l,ro,U,-f„„„ ,■,.,>„„,,, Nichohon. 1887. An„.° and Mag.
^iU. Hist.,ser. o, vol. XIX. p 13
pi. 3, figs. 6-8. ' ' ''
"Rare in the Hamilton formation rDevonian^ ^^
Arkona, Ontario," where it was discovere 1 b J n T
Huide. Nicholson. ^ "^^ ^' '^-
Canadian Stro matopo roids.
141
Stromatopora. (Sp.)
"Ofr. S. huchclimsis, Bargatzky, sp." Nicholson. 1891. Ann.
and Mag. Nat. Hist., ser. 8, vol. VII.,
p. 313.
According to Professor Nicholson (op. cit.) two speci-
mens collected by Mr. Tyrrell in 1889 from the
Stringocephalus limestone of two small islands in Dawson
Bay, Lake Winnipegosis, " have the general aspect of
Stromatcrpora huckeliensis, liarg. sp., and are probably
referable to this species. Unfortunately the specimens in
question are dolomitized, and their internal structure is so
far altered that this reference cannot be regarded as free
from doubt."
Stromatopora. Sp.
" Cfr. Stromatopora Hwpschii, Barg., sp." Nicholson. 1891.
Ann. and Mag. Nat. Hist.,
ser. 6, vol. VII., p. 314.
Lake Winnipegosis, at the south end of Snake Island
(one specimen), and on a small island on the south-east
side of Dawson Bay (one specimen) ; J. B. Tyrrell, 1889.
In reference to these two specimens Professor Nicholson
observes (op. cit., p. 314) that they " belong to a species of
Stromatopora in many respects similar to S. Hiipschii,
Barg. Structurally they agree witii the latter common
European and British type, and ditler from S. Bucheliensis,
Barg., in their coarse skeleton fibre, the lax reticulation of
the skeleton, and the loose spreading form of the
astrorhizffi. The internal structure of these specimens is.
however, very poorly preserved, and it would be rash
to refer them unreser\'edly to S. Hiipschii."
Stromatoporella granulata, Nicholson.
Stromatoporclla granulata, Nicholson. 1873. Ann. aiul Mag.
Nat. Hist., ser. 4, vol. XII.,
p. 94, pi. 4, figs. 3 and 3a ; and,
I
142
Canadian Record of Scienci
1886, Moil. JJrit. Stromatop.,
pt. 1, pp.98, 94, pi. 1, figs. 4, 5
and 15, pi. 4, lig. 0, and pi. 7,
figs. 5 and G : also, 1891, Ibid.,
pt. 3, p. 202, pi. 26, fig. 1.
Hamilton formation at Arkona and near Thedford,
Ontario. According to Professor Nicholson (Mon. Brit'
Stromatop., p. 203), this species has been fonnd only
in the Hamilton formation and S. Sclwi/nii in the Corni-
ferous.
Stkomatoporella Selwynii, Nicholson.
Strom atoporella Selwynii,WiG\\(yhon. 1892. Mon. Brit. Stro-
niatop., pt. 4, p. 205, pi. 1, fig.
14, and pi. 26, figs. 2-4.
" Not uncommon in the Corniferons limestone of Port
Colborue, Ontario." Nicholson, op. cit., p. 205.
Stkomatoporella incuustans, Hall and Whitfield. (Sp.)
Stromatopora (Cmnostroma) incrustans, Hall and Whitfield.
1873. Twenty-third liep. Reg.
N.Y. St. Cab. Nat. Hist., p.
227, pi. 9, fig. 3.
Stromatopora nulliporoidcs, Nicholson. 1875. Hep. Pal. Prov.
Ont., p. 78.
Stromatoporella incnistans, Nicholson. 1891. Ann. and Mao-.
Nat. Hist., ser. 6, vol. VII.,
pp. 309 and 310, footnote.
"Hamilton formation at Arkona, an.l Corniferons lime-
stone, at Port Colborne, Ontario." Nicholson. It is also
abundant in the neighborhood of Thedford, Ontario, in the
Hamilton formation.
Stromatoporella (?) tuberculata, Nicholson.
Stromatopora tnhercidata, Nicholson. 1873. Ann. and Mag.
Nat. Hist., ser. 4, vol. XII.,
p. 92, pi. 4, figs. 2 and 2a:
Canadian Stromatopnroids.
143
1874, Il)id.,ser.4,vol. Xni..n 8,
Hgs. I, a-c: Itep. Pal. I'rov. Out.,
p. 14, ])!. 1, f,Vr,s. 2 and 3, and
%s. 2, a-r, (.11 p. 15: and, 1887,
Ann. and ^lajr. Nat, Hist., ser. 5,
vol. XlX.,p. 15, pi. 3, figs. 9-11.
Common m the Corniferous limestone at Hidgeway
and Port Colborne. Nicholson.
B. Species of douhtfcl affinitfk.s, that have not
YET BEEX EXAMINED WITH THE MICROSCOPE.
{Cambro-Silnrian species.)
Strom ATocEKiuM rugosum, Hall.
Stromatoceriam riigusum., Hall. 1847. Pal. N. York, vol. I.,
p. 48, pi. 12, figs. 2, 2, a-h.
Stromatopora rugosu, Billings. 1873. (}eol. Canada p 140
fig- V2.
According to Professor Hall, "this coral, so far as
known, is confined to the Black-river limestone, and to the
•dark layers alternating with the Bird's-eye limestone." (op.
cit., p. 48). In the Province of Quebec, specimens of this
species were collected at Lake St. John, two miles west of
the Metabechouan Kiver by Mr. James Eichardson in
1857. In Ontario, specimens were collected at Paquette's
Kapids, on the Ottawa Eiver, by Sir W. E. Logan in 1845 ;
at Balsam Lake, Victoria Co., by Mr. Alexander Murray
in 1853 ; and on Lot 13, Con. 4, of Stafford, by Mr. Richard-
son in 1853. In the "Geology of Canada" for 18G3 the
species is recorded as occurring on the Moira liiver,
Hastings Co. ; in the township of Douro, near Peterborough. ;
and on Lacloche Island, Lake Huron. The specimens are
usually silicitied and their minute structure seems to
be obliterated. At I^aquette's Kapids there are two
I
144 Canadian Eecord of Science.
forms (the one with a massive ami the other with an
encrustincr cienosteum), both of which have been identified
with tliis" species by -1. W. Salter and E. BilHngs. The
encrnstinfj form, wliich often ahnost entirely covers the
exterior of shells of Macliirea Logani, has somewhat the
appearance of e Lahechia.
{Silurian species.)
Stkomatopora Hindei, Nicholson.
Stromatomra Hindei, Nicholson. 1874. Ann. and Mag. Nat.
Hist., ser. 4, vol. XI II., p. 12, and
p. 13, figs. ?>, a-c. : also Rep. I'al. Trov.
Ontario, p. 13, figs. 1, a-c.
"Common in a magnesian limestone of the age of
the Niagara limestone (Upper Silurian), at Owen
Sound, Ontario. Collected by Mr. G. d. Hnide.'
Nicholson. This species must be abandoned, as, m a
letter recently received by tlie writer, Professor Nicholson
says that " it was founded on a weathered Ctmites
perforated by some boring orgtuiism."
Stiiomatopoua striatella, Nicholson.
Stroviaiopora striatella (D'Orlngny), Nicholson
1875.
Hep. I'al. Prov. Ont., p. 49.
« Common in the Niagara Limestone of Thorold. Rare
at Rockwood." Nicholson. This identification, however,
is not confirmed, as the occurrence of S. striatella,
D'Orbic^ny (which is now known to be a Clat/irodicti/on) at
these localities, is omitted by Professor Nicholson in his
most recent references to that species.
CAUNorouA Walkeki, Spencer.
Caunopom Walkeri, Spencer, 1884. Bull. Mus. Univ St.
Missouri, vol. I., No. 1, p. 46, pi. b,
figs. 9 and 9a.
Lower beds of the Niagara formation at Hanulton,
CantiiUan Stroinatopor&ids. 145
Ontario. " In the specimens that 1 haveseen, the original
matter is all Hilicitied" Spencer.
Caunopora mirabilis, Spencer.
Caunopora mirahilis, Spencer. 1884. Bull. Mus. Univ. St.
Missouri, vol. I., no. 1, p. 47, pi. 6,
figs. 10, 10, a-b.
" Only one specimen has been obtained from the Niagara
formation at Hamilton, so far as I am aware." Spencer.
C.i^iNOSTROMA BOTRYOIDEUM, Spencer.
Cwnostroma botryoideum, iipencer. 1884. Bull. Mus. Univ. St.
Missouri, vol. I., no. 1, p. 50, pi. 6,
tigs. 13, 13. a-b.
Abundant " in the Upper Niagara beds at Carpenter's
limekilns, about two and a half miles south of Hamilton,
Ontario." Spencer.
DiCTYOSTROMA RETicuLATUM, Spencer.
Didyostroma reticidahtm, Spencer. 1884. Bull. Mus. Univ.
St, Missouri, vol. I., no. 1, p. 51,
pi. 6, figs. 14 and 14a,
" It occurs in the cherty beds of the Niagara formation
at Hamilton, Ontario." Spencer.
{Devonian sjjecies.)
Stromatopora perforata, Nicliolson.
Stromatopora perforata, Nicholson. 1874. Ann. and Mag.
Nat, Hist,,ser. 4, vol. XIII., p. 11,
and p. 12, figs. 2, a-c ; also Rep.
Pal. Prov. Ont., p. 15, and p. 16,
figs, o, a-c.
"Pare in the Corniferous limestone of Port Col borne,"
Ontario. Nicholson.
A46
Coiwdian Jiecfrt^l of ^(;knce.
11 ii!"i I' . "iSfrKOAiATCJi^ouA : MivMiLLATA, Nicholson.
Stromatopora ma)iimiil(ifa,}^.\c\\o\mn. 1873. Ann. and Map;.
Nat. Hist., SQV. 4, vol. XT!.,
p. 94, 1)1. 4, fi<r. 4 : and, 1874,
liep. Pii). Tiov. Ont.,p. 17,pl. 1,
fi--. 4.
" liare, in a silicified condition, in the Corniferous
limestone of I'oit Colborne.'.' Nicholsoa.