WHITEAVES.] CRETACEOUS FOSSILS, NORTH WEST TERRITORY. 181 



below or in front, and distinctly angular at the base or anterior ex- 

 tremity. Spire narrow, depressed and sunk deeply below the highest 

 level or rounded posterior shoulder of the outer whorl. 



Outer lip thin and simple: characters of the aperture and surface 

 markings unknown. 



Maximum height or length of the only specimen collected, ten 

 millimetres and a-half; greatest breadth of the same, nine mm. 



Sounding Creek, Township 30, Eange 8, west of the 4th Principal 

 Meridian, 1886 : one perfect cast of the interior of the shell, with a 

 considerable portion of the inner layer of the test preserved, though 

 the aperture is entirely filled up with the matrix. 



This interesting little shell may belong to Conrad's genus Bullopsis, 

 rather than to Hydatina. It seems to differ from B. cretacea of that 

 author in being more expanded posteriorly and more angular in front. 



LuNATiA coNCiNNA, Hall and Meek. (Sp.) 



Natica concinna, Hall and Meek. 1854. Mem. Am. Ac. Arts, and Sc, vol. V., 



p. 384, pi. 3, figs. 2 a, b, c, d. 

 Natica Moreauensis, Meek and Hayden. 1856. Proc. Ac. Nat. Sc Phil., vol. 



VIII, pp. 64 and 282. 

 Natica (Lunatia) iforeauensis. Meek- and Hayden. 1860. lb., vol. XII., p. 422. 

 Imnatia concinna, Meek. 1876. Rep. U. S. Geol. Surv. Terr., vol. IX., p. 314, 



pi. 32, figs. 11 a, b, 0. 



Battle Eivei', Township 46, Eange 3, west of the 4th Principal 

 Meridian, 1885 : four imperfect and badly preserved specimens. 

 Sounding Creek, Township 30, Eange 8, west of the same meridian, 

 1886 : one specimen. 



CEPHALOPODA. 



Baculites ovatus, Say. 



Baadites ovatus, Say. 1821. Am. Journ. Sc. and Arts, vol. II., p. 41.— Morton. , 

 1829. Journ. Ac. Nat. Sc. Phil., vol. VI., p. 196, pi. 5, 

 figs. 5 and 6 ; and 1830, Am. Journ. Sc. and Arts, vol. 

 XVIII., p. 249, pi. 1, figs. 6, 7 and 8 ; also 1834, Synops. 

 Org. Kern. Cret. Group U. S., p. 42, pi. 5, figs. 5 and 6.— 

 Hall and Meek. 1854. Mem. Am. Ac. Arts and Sc, vol. V., 

 (N.S.) p. 399, pi. 5, figs. 1, a, b, and pi. 6, figs. 1-7.— Meek. 

 1876. Rep. IT. S. Geol. Surv. Terr., vol. IX., p. 394, pi. 20, 

 figs. 2, a, b, d, and 1, a, b. 



Ghost Eiver, Township 25, Eange 6, west the of 5th Principal 

 Meridian, 1885. North Saskatchewan Eiver, near mouth of Moose 

 Hill Creek ; also on the same river, in Township 54, Eange i, and in 



