WHITEAVES.] DEVONIAN FOSSILS OF MANITOBA, ETC. 2o7 



" Ci/rfiiia" most probably C . llaiiilltunrnslx oi Hull. " The following," 

 he says, " were obtained on the western sliore of Dawson Bay, fnjin slabs 

 apparently derived from the neighbouring elitl's : liei-r-jttaculitfa (?), Fdvo- 

 iites (2 species), Syrinyoponi, Accrriilnriii profunda (this occurs in the 

 Hamilton giciup in Iowa), TlelioplnjlJiDn (like //. flalh), D'qiliyjilnjllnin, 

 Stromatopnni, crinoidal columns, (Ti/jiidiih/-, Jl/ii/nchoHeHa, Atrijpa rflirii,- 

 laris, Atlnjrix, Strophomena, a braehiopod resembling Str'nKiocejihnhi.s, 

 Eudiiipliitl n!<, Ph'urotomaria, Bellfrojihoii and P/i ill ipsia." The specimens 

 referred to in this list as " jReci'ptaciiJl/i'n {'t)" are two worn examples of 

 Sjihii'i-iisj-inni/ia tHsse/hita ; the two species oi FiivofiiteK are F. Gothlaiidlra^ 

 var., and FndipjH'ra cervicornt^: , the " llelioplnjllum like //. llnlli " is a 

 new species of Actinocystis, which will be found described and figured in 

 this report as A. variahilis ; the " tjypiduhi' is Pentarneruf: comis ; the 

 "braehiopod like Stringocephnhis" is <S'. JJiirfini; the "EimmpJiiiliia" is a 

 small species of ^trapafolJus here descriljed and figured as S. fiiir.iii<-liis ; 

 the " Bi'lleroplion" appears to be B. 7V/oyw, Hall, and the " F/iill-ipsiri " a 

 varietv "t J'l-ui'tns Haldemani. To this list, alsn, may be added Orthofliet.ea 

 Chemiiiif/in.sis, var., and Conocn rdmm OliKKiitti-, Meek, which Prof. Whit- 

 field savs is the young of C. tri(ion(ih\ Hall, though Prof. Hal] himself 

 savs that his C. trigonrde is a synonym of Conrad's C. cuni'us. Finally, 

 Dr. Spencer says, .'' among other specimens which had evidently Ijten 

 transported from a greater or less distance, there were Fejifaiiu'riis^ Atryjin 

 reticiilriri.^, A. aspern, Strop>]ii>ijie)i.ii, Clio-rieti'x, Fnoitiplial na, kc. The 

 '' Fenfidiii'i-iis " of this list is a Silurian species, which has since Ijeen des- 

 cribed by the present writer under the name F. deciissntiis, and which, 

 so far, has only been found in pihu-c at the foot of the Grand Rapids of 

 the Saskatchewan. 



Bv far the most complete examination of the geology around Lakes 

 Manitcjba and Winnipegosis that has yet been made, was effected by ~Mr. 

 J. B. Tyrrell, M.A., B.Sc, of this Survey, in the summer seasons of L^S.s 

 and \XX'.). All the rock exposures on the islands, shores and immediate 

 vicinity of these two lakes were examined by Mr. Tyrrell, who outlined 

 the boundaiies of the belt of Devonian rocks across this tract of country, 

 discovered many new fossils in thi;se nicks, and traced out the horizons in 

 which these fossils occur, as well as the stratigraphical relations of the 

 different Ijands of limestone to each other and to the Cretaceous rocks Ijy 

 which they are overlaid. In LSSS he disco\-ered a small exposure cjf rocks 

 of Silurian (Upper Silurian) age at I)a\ is Point, Portage Bay, Lake .Mani- 

 toba, and in 18.S!) a large area of rocks of the same age on the north- 

 eastern shore of Lake Winnipegosis. During both these years he was 

 assisted by Mr. D. B. Dowling, B.A.Sc, in a topographical survey of this 

 district and in the collection of fossils, and in the summer of LSSS the 

 present writer had the pleasure of visiting nearly all the fossiliferous ex- 

 U 



