235 



Bu.nastus Trentonensis (Emmons) Clarke .. .lSd4. Lower Silur. Trilob. Minn., p. 718 



p. 719, figs. 30 and 31 ; p. 720, figs. 32 and 

 33 ; and p. 721, figs. 34 and 35. 



A few specimens of this species, mostly detached glabellse or pygidia, 

 were collected at Lower Fort Garry (St. Andrews) by Dr. R. Bell in 

 1879 and 1880; at East Selkirk by T. 0. Weston in 1884 and by L. M. 

 Lambe in 1890; also at Little Black Island, Lake Winnipeg, by J. B. 

 Tyrrell in 1889, and by D. B. Dowling and L. M. Lambe in 1890. A 

 cast of the interior of the crust of a nearly entire but rolled up specimen 

 of a trilobite belonging to the U. S. National Museum, and labelled 

 "Rapids K Red River (loose), D. Gunn, No. 4260," is evidently a 

 medium sized or rather small specimen of B. Trentonensis. The specimen 

 from "St. Andrews" referred to on page 58 c of the Report of Progress 

 of this Survey for 1879-80, as Bumastes Barriensis, is a large example of 

 B. Trentonensis with only the thoracic segments and the pygidium pre- 

 served. The supposed new species of Stricklandinia in the list of St. 

 Andrew's fossils on that page is now known to be a loose example of a 

 Pentamerus since described as P. decussalus, * and the "Thecia, Nov. 

 Sp.," and " Eridophylluin, Nov. Sp.," of that list are the Protaroea (yetusta, 

 var.) major, and Diphyphyllum Stokesii of this Report. 



Bronteus lunatus, Billings. 



Bronteus limatux, Billings 1857. Geol. Surv. Canada, Rep. Progr. 



1853-56, p. 338. 



18C3. Geol. Canada, p. 188, fig. 187. 



Clarke 1894. Lower Silur. Trilob. Minn., p. 725, 



fig. 43. 



Inmost or Birch Island, Kinwow Bay, Lake Winnipeg, T. C. Weston, 

 1884 : a perfect and well preserved pygidium. 



Three obscure fossils, which are portions of tails of a very large and 

 undescribed species of Bronteus, but which are too imperfect for descrip- 

 tion, were collected at Cat Head by D. B. Dowling and L. M. Lambe in 

 1890. 



Pterygometopus oallicephalds, Hall. (Sp.) 



Phacops callicephalub. Hall 1847. Pal. X. York, vol. I., p. 247, pi. Bo, 



figs. 3, n-i, 

 Pterj/gwiietopus caUicephcUus, Cla-rke 1894. Lower Silur. Trilob. Minn., p. 731, 



figs. 51 and 52. 



East Selkirk, A. McCharles, 1884: two pygidia, which were kindly 

 presented by him to the Museum of the Survey. 



** In the Canadian Record of Science for A pril, 1891, vol. I V. , p. 295, pi. 3, figs, and 4 



