WHITEAVES.] DEVONIAN FOSSILS OF MANITOBA, ETC. 291 



Strinijocephaius Burtiiii, Davidson. 1865. Mon. Brit. Dev. Brach., p. 11, (which 

 see for a complete list of synonyms of this species, with 

 references) pL i, figs. 18-22, and pi. ii, figs. 1-11. 

 " Whiteaves. 1890. Trans. Royal iSoc. Canada, vol. VIII, 



Sect. 4, p. 93, pi. iv, figs. 1-9 ; and (1891) this volume, p. 

 235, pi. xxix, figs. 10, 10a, 11 and 11a. 



Western shore of Dawson Bay, Lake Winnipegosis, J. W. Spencer, 

 187J: a loose and imperfect cast of the interior of a very young shell. 

 Lake Manitoba, at Monroe and Pentamerus Points, J. B. Tyrrell and J. 

 F. Whiteaves, 1888 : a few very large but imperfect and badly preserved 

 specimens at each of these localities. South-west shore of Lake Winni- 

 pegosis, at Weston Point, J. B. Tyrrell, 1889 : one imperfect cast. Col- 

 lected abundantly and often in tine condition by Messrs. Tyrrell and 

 Dowling, on six of the islands in Davidson Bay, and at eight more or less 

 widely separated exposures around its shores. 



The specimens from these localities have been described in some detail 

 and illustrated in the eighth volume of " Transactions of the Royal 

 Society of Canada.'' 



(S.) Terebratula Sullivanti, Hall. 



Plate 37, figs. 9, 9a and 10. 



Terebratula SuUiranii, Hall. 1867. Pal. St. N. York, volume IV, p. 387, pi. Ix, 

 figs. 5-10 and 68. 



Lake Manitoba, at Monroe and Pentamerus Points, J. B. Tyrrell and J. 

 F. Whiteaves, 1888 : one good specimen at each of these localities. Daw- 

 son Bay, Lake W^innipegosis, on the south-east side, at Whiteaves Point 

 and on three small islands in its immediate vicinity, — on a small island 

 about three miles north of Salt Point, and on its south-eastern shore, 

 about two miles west of Salt Point, J. B. Tyrrell and D. B. Dowling, 

 1889 : collected rather sparingly at each of these localities, but most 

 abundantly at Whiteaves Point, where eleven fine specimens were ob- 

 tained, most of which are nearly perfect. 



In some of these the anterior margin is simply truncated in the centre, 

 and such specimens are essentially similar in external form to the example 

 of T. Sullivanti from the Corniferous limestone of Cayuga (Ont.) repre- 

 sented by Prof. Hall on Plate Ix, fig. fi8, of the fourth volume of the 

 " Paleontology of the State of New York." Others, again, are rather 

 deeply emarginate in front, with a shallow mesial sinus in lioth valves, as 

 in the original of figs. 9 and 9a on Plate xxxvii of this volume. The 

 internal loop, which is seen only in one specimen, in which it is imperfect 

 and obscured by a crystalline deposit, seems to have been originally both 

 short and narrow. 



