v/HiTEAVFS.J DEVONIAN FOSSILS OP MANITOBA, ETC. 311 



(S-) OrTHONOTA CORRUdATA. 



Orfhoiio/a lornii/ata, \Yluteaves. 1890. Trans. Royal Soc. Canada, vol. VIII, Sect. 

 4, p. 98, pi. v, figs. 4, 4a, and .■). (Separate copies.) 



Dawson Bay, Lake Winnipegosis, at Whiteaves Point and on two small 

 adjacent islands, also at the mouth of the Red Deer River, J. B. Tyrrell, 

 1889 : a few casts or portions of casts of the interior of the shell, on some 

 <if which parts of the test are preserved. 



SCAPHOPODA. 



(S.) Dentalium. (Sp.) 



(Cfr. D. antiquum, Goldfuss.) 



Plate 4."!, figs. 1 and 2. 



Dcnla/inm aii/iquum, Goldfuss. 1841-44. Petref. German. , vol. Ill, p. 2, pi. clxvi, 

 figs. '2a, b, 0. 



A few specimens of a species of Dentalium, which cannot at present be 

 .satisfactorily distinguished from D. antiquum, were collected by Mr. 

 Tyrrell and the present writer in 1888 at Pentamerus and Monroe Points, 

 on Lake Manitoba, and by Messrs. Tyrrell and Dowling in 1889 at Devils 

 Point and at five localities in or around Dawson Bay, Lake Winnipeg- 

 osis. 



A specimen obtained at Pentamerus Point is two inches and a half 

 long, but one of the specimens from Dawson Bay must have been fully 

 three inches in length when perfect. The surface markings of the whole 

 are not well preser\-ed, but appear to consist of transverse annular stria- 

 tions, which are usually very closely disposed, but in some individuals 

 there are indications also of fine longitudinal stria:'. It is only proper to 

 add that the specimens from the localities have much the same shape and 

 surface markings as the CdI/'oIus crenatocinctiis of Hall*, which Whitfield 

 thinks is a Dcntaliuin, but there is at present no satisfactory evidence t(j 

 show that the transverse striiv of the former are crenate. 



GASTEROPODA. 



(S.) PaL/EACM/EA (?) cinijulata. (N. Sp.) 



Plate iS, figs. 8 and 8a. 



Shell small, patelliform, erect, cimical, but slightly compiessed at the 

 .sides, considerably elevated, its height Ijeing rather more than half the 



* Pal. St. N. York, 1879, vol. V, pt. 2, p. ISS, pi. x.xxii, figs, f-3, and pi. x.\xii \, 

 figs. 3 and 4. 



