13 



172 Columbella (Astyris) tuberosa Cpr. 



753 Colunina ramentosa J. G. Cooper. 



754 Var. abbreviata 



1863 Conulus ehersinellus Dall. 



1200 Conulus fulvus Drap. 



1965 Conulus fulvus alaskensis 



2270 Conus arcuatus Sby. 



67 Conus californicus 3050 



2272 Conus gladiatus Brod. 

 2348 Conus gradatus Mawe. 



2271 Conus nux Brod. 

 2269 Conus princeps Brod. 



923 Cooperella scintilla?forniis Cpr. 



2651 Cooperella subdiaphana Cpr. 



281 Corbula luteola Cpr 



282 Corbula sp. indet. 

 2511 Corbula luteola rosea 



2286 Craspedotriton scalarifonnis Brod. 



2652 Crassatella fluctuata Cpr. 



755 Crassatella marginata Carpenter. 



2653 Crenella affinis Dall. 

 2438 Crenella Columbiana Dall. 



756 Crenella decussata Montagu. 

 1449 Crenella niegas Dall. 



433 Crepidula aculeata Gmelin. 

 2076 Crepidula grandis Midd. 



74 Crepidula dorsata 



2522 Crepidula rugosa naticarum 



2523 Variety Norrisiarum Williamson. 



2524 Crepidula* nivea glottidiarum 

 2298 Crepidula onyx Sby. 



187 Crepidula dorsata var lingulata Gld 



491 Crepidula excavata Brod. 



493 C. navicelloides explanata Gould. 



492 C. navicelloides nummaria Gould. 

 186 Crepidula navicelloides Nutt 



75 Crepidula rugosa 



1990 Crepidula convexa Say. 



Variety glauca Say. 

 73 Crepidula unguiformis 

 72 Crucibuluni imbricatum 

 2301 Crucibuluni imbricatuni Brod. 

 71 Crucibuluni spinosum 



757 Crucibuluni tubiferum Lesson. 



760 Crytobranchia alba Dall. 



758 Cryptobrancbia concentrica Escli. 



759 Var. instabilis Dall. 



761 Crytochitor. stelleri Middendorf. 

 551 Crytodon barbarensis Dall. 



530 Cryptodon bisectus Dall. 



762 Crytodon flexuosus Linne. 



763 Crytodon sericatus Carpenter. 

 102 Cryptomya Calif ornica 



294 Cuniingia californica Conr 



2440 Cuspidaria obesa Lov. 



3074 Cuspidaria subglacialis 



2654 Cuspidaria striata Jeff. 



1273 Cyanoplax hartwegii Carpenter. 



1274 Cyanoplax nuttallii Carpenter. 

 358 Cyathodonta undulata Conrad 



