NORTH AMERICAN CONCHOLOGY. 



205 



[Proc. Zool. Soc. London.] 



Dk. J. E. Gray. 



45 Strephona Cumingii Rve. 



Oliva Cumiiiyii Rve. 



46 Schumacheriana Beck. 



.Oliva Sclnumtcheriana Beck. 



47 Ramola volutella Lam. 



Oliva volutella Lam. 

 casrulea Gray. 

 Razamola Duel. 

 Olivella volutella Gray. 

 51 Agaronia testacea Lam. (Oliva). 

 A. hidfula Gray. 

 Oliva hiatula Duel. 

 Steerix Rve. 

 55 Olivina lineolata Gray ( Oliva), 

 Oliva ditma Goodall. 



puTjmrata Swains. 

 gracilis Duel. 

 Olivella lineolata Adams. 



California. 

 California. 

 W, Coast of America. 



Mexico. 

 California. 



