92 
Lima tizglensis n. sp. 
(! Tide, ancient home of Carrier Indians) 
Plate XX, figure 1 
A moderately convex, semiovate, not very oblique species. Abruptly 
inflected on the long, antero-dorsal submargin. Posterior ear of moderate 
size and triangular, anterior ear not preserved. Surface covered with 
forty to fifty irregular, flexuous, radiating costse of low relief. Approxi- 
mate measurements are as follows: 
Height 75 mm.; length 60 mm.; thickness single valve 11 mm. 
Lima occidentals Hall and Whitfield 1 from the Jurassic of Flaming 
Gorge, Utah, has straighter and relatively wider radiating costse, a smaller 
posterior ear, and a more narrowly inflected antero-dorsal submargin. 
Horizon and Locality. From talus of the middle sedimentary division 
of the Hazelton group, exposed in a cliff about 1 mile southeast of Silver 
lake, Hudson Bay mountain, B.C. 
Type: Victoria Memorial Museum; holotype, Cat. No. 7701. 
Ostrea weegeti n. sp. 
(Weeget, an Indian chief) 
Plate XIX, figure 5 
A small, ovate, somewhat depressed species. The beak of the right 
valve is very small, the beak of the left valve is not well defined in type 
specimen. Plications are well formed on the anterior half of both valves; 
they are broad and rounded, nine in number, and give rise to crenulate 
interlocking anterior and ventral margins. On the posterior half of the 
shell there are incipiently formed plications on the postero-ventral and 
lower posterior margins only; most of the posterior half is without plica- 
tions and merely covered with growth-lines, which are strongly curved, 
convex ventrally. The paucity of plications on the posterior half may 
be due to attachment to a non-plicate shell or some flat object. 2 
Height 30 mm.; length 24 mm.; thickness 7*5 mm. 
Horizon and Locality. From talus of the middle sedimentary division 
of the Hazelton group exposed in a cliff about 1 mile southeast of Silver 
lake, Hudson Bay mountain, B.C. 
Type: Victoria Memorial Museum; holotype, Cat. No. 7702. 
Oxytoma submcconnelli n. sp. 
Plate XXIII, figure 1 
Only the left valve of this large species is preserved. The semiovate 
body of the shell is oblique, a little longer than high, rather compressed, 
and narrowly inflected along the very gently curved (concave) postero- 
1 U.S. Geol. Exp lor. 40th Par., vol. IV, pt. 2, p. 292, Pi. 7, fig. 23. 
1 Woods has so interpreted some Cretaceous species. Mon. Cret. Lam. England, Pal. Soc., vol. 2, pt. 9, p. 385 
<1913). 
