84 CONTRIBITTIONS TO CANADIAN PALEONTOLOGY. 



Pinna Lakesii, White. 



Pinna lakesii. White. 1879. Eep. U. S. Geol. Surv. Terr, for 1877, p. 181. 



" " " 1880. U. S. Geol. Surv., Contr. to Pal., Nos. 2-8, p. 17, pi. 



11, figs, la and b. 

 South branch of the South Fork of the Old Man Eiver, G. M. Daw- 

 son, 1883 : one very well preserved but not quite perfect cast of the 

 interior of the closed valves. 



VoLViCERAMUS EXOGYROIDES, Meek and Hayden. (Sp.) 



Inoceramus exogyroides, Meek and Ha\'den. 1862. Proc. Ac- Nat. Sc. Phil., vol. 

 XIV., p. 26. 

 Meek. 1876. Rep. U. S. Geol. Surv. Terr., vol. IX., p. 46, 

 pi. 5, figs. 3, a, b, c. 



South branch of I)rywood Fork, Waterton Eiver, G. M. Dawson, 

 18sl : a cast of the interior of a rather small specimen of the left or 

 convex valve (the only valve known), with large portions of the some- 

 what thick test preserved. Entrance to Xorth Kootanie Pass (from 

 shales), G. M. Dawson, 1883 : a larger cast of the interior of the left 

 valve, but with not a fragment of the test remaining. 



INOCERRAM0S UNDABUNDUS, Meek and Hayden. 



Inoccramim undabundus, Meek and Hayden. 1862. Proc. Ac. Nat. Sc. Phil., vol. 

 XIV., p. 26. 



Meek. 1876. Eep. U. S. Surv. Terr., vol. IX., p. 60, pi. 

 3, figs. 2, a, b. 



Highwood Eiver, ten mile^ west of the first fork, E. G. McConnoU, 

 1882 : two very large but not quite perfect single valve.5, in a dark or 

 blackish shale. North-West bi-anch of North Fork of the Old Man 

 Eiver, about four miles below the mouth of Oyster Creek, in a thick 

 band of dark shale; G. M. Dawson, 1883 : one small but nearly perfect 

 left valve. 



