WMITEAVE6.] LARAMIE AND CRETACEOUS INVERTEBRATA. 31 



Chlajits Xebrascensis, Meek & Hayden. 



Pecten Nehnmnmgis, Meek & Hayden. 1856. Proc. Ac. Xat. So. Phil., p. S7. 

 Chlamys Nebrascends, Meek. 1876. Rep. U. S. Geol. Surv. Terr., vol IX., p. 2.5, 

 pi. 16, figs. 6, a, b, c. 



East branch of the Poplar Eivei- on the -iQth Parallel (the locality 

 where the Woody Mountain Astronomical Station wa.s established, 

 vide page 107 of Dr. Dawson's Eeport on the Geology and Resources 

 of the country in the vicinity of the 49th Parallel), G. M. Dawson, 

 1874, H. M. North American Boundary Commission : a perfect single 

 valve whose outer surface is buried in the matrix. 



Old Wives Creek, Townshij) 10, Eange 11, west of 3rd Principal 

 Meridian, E. G. McConnell, 1884 : two single valves with the test 

 almost entirely exfoliated, 



Pteria LiXGuiFORiiis, Evans and Shumard. (Sp.) 



AviciUa linguiformis, Evans and Shumard. 1854. Proc. Ac. Xat. Sc. Phil., vol. 



II., p. 163. 

 " " Meek. 1859. Hinds' Rep. Assinib. and Saskatch. EspL 



Exp., Toronto, p. 18o, pi. 1, fig. 6. 

 Pteria linguiformip, Meek. 1876. Rep. U.S. Geol. Surv. Terr., vol. IX., p. 32, pi. 16, 



figs. 1, a, b, c, d. 



Elbow of South Saskatchewan, Prof H. Toule Hind, 1858, Dr. 

 E. Bell, 1873, and Prof Macoun, 1879. South Saskatchewan, fifteen 

 miles west of Swift Current Creek, E. G. McConnell, 1882, and Bull's 

 Head, about twenty-two miles west of the west end of the Cypress 

 Hills, E. G. McConnell, 1883. Three miles north of Eoss Coulee, near 

 Irvine Station, on the Canadian Pacific Eailway, T. C. Weston, 1884; 

 abundant. 



Pteria (Oxttoma) Nebrascana, Evans and Shumard. 



Avicula Nehrascana, Evans and Shumard. 1857. Trans. Ac. Sc. St. Louis, vol- I., 



p. 38. 

 " " Meek. 185f». Hind's Rep. Assinib. and Saskatch. Espl. 



Exp., Toronto, p. 183, pi. 1, fig. 7. 

 Pteria (Oxytoma) Nebrascana, Meek. 1876. Rep. U.S. Geol. Surv. Terr., vol. IX, p. 



34, pi. 16, figs. 3 a, b, and pi. 28, fig. 12. 



"South Branch of the Saskatchewan," Prof. H. Y. Hind, 1858. 

 South Saskatchewan opposite Swift Current Creek, R. G. McConnell, 

 1882. 



