13 
172 Columbella (Astyris) tuberosa Cpr. 
753 Columna ramentosa J. G. Cooper. 
754 Var. abbreviata 
1863 Conulus chersinellus Dall. 
1200 Conulus fulvus Drap. 
1965 Conulus fulvus alaskensis 
2270 Conus arcuatus Sby. 
67 Conus californicus 
2272 Conus gladiatus Brod. 
2348 Conus gradatus Mawe. 
2271 Conus nux Brod, 
2269 Conus princeps Brod. 
923 Cooperella scintilleformis Cpr. 
2651 Cooperella subdiaphana Cpr. 
281 Corbula luteola Cpr 
282 Corbula sp. indet. 
2511 Corbula luteola rosea 
2286 Craspedotriton scalariformis Brod. 
2652 Crassatella fluctuata Cpr. 
755 Crassatella marginata Carpenter. 
2653 Crenella affinis Dall. 
2438 Crenella Columbiana Dall. 
756 Crenella decussata Montagu. 
1449 Crenella megas Dall. 
433 Crepidula aculeata Gmelin. 
2076 Crepidula grandis Midd. 
74 Crepidula dorsata 
2522 Crepidula rugosa naticarum 
2523 Variety Norrisiarum Williamson. 
2524 Crepiduia nivea glottidiarum 
2298 Crepidula onyx Sby. 
187 Crepidula dorsata var lingulata Gld 
491 Crepidula excavata Brod. 
493 C. navicelloides explanata Gould. 
492 OC. navicelloides nummaria Gould. 
186 Crepidula navicelloides Nutt 
75 Crepidula rugosa 
1990 Crepidula convexa Say. 
Variety glauca Say. 
73 Crepidula unguiformis 
72 Crucibulum imbricatum 
2301 Crucibulum imbricatum Brod. 
71 Crucibulum spinosum 
757 Crucibulum tubiferum Lesson. 
760 Crytobranchia alba Dall. 
758 Cryptobranchia concentrica Esch. 
759 Var. instabilis Dall. 
761 Crytochiton stelleri Middendorf. 
551 Crytodon barbarensis Dall. 
530 Cryptodon bisectus Dall. 
762 Crytodon flexuosus Linne. 
763 Crytodon sericatus Carpenter. 
102 Cryptomya Californica 
294 Cumingia 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 
3050 
