1356 
2163 
2164 
2165 
600 
599 
603 
2655 
1191 
14 
Cycladella papyracea Cpr. Mazatlan. 
Cyclinella subquadrata Hanl. 1845. 
Cyclinella Kroyeri Phil. 1847. 
Cyclinella Singleyi Dall. 1902. 
Cyclostrema diegensis 
Cyclostrema xantusi. Cape San Lucas. 
Cyclostremella californica 
Cyclichna alba Brown. 
Cylichna cylindracea 
98 Cylichna inculta 
3138 
3139 
2081 
2349 
2557 
553 
2684 
2288 
1601 
1602 
Cylindrella irregulare Gabb, 1867. 
Cylindrella Taylori Pfeiffer, 1861. 
Cymatium adairense 
Cymatium corrugatum Lam. (See 2557). 
Cymatium corrugatum tremperi 
Cymatoica occidentalis Dall. 
Cyprza Annettz 
Cypreea arabicula Lam., var. 
Cyprza Bayerquei 
Cyprza Matthewsonii 
68 Cypraea spadicea 
1603 
2656 
2657 
2158 
2159 
2160 
2161 
764 
119 
765 
3084 
3085 
3086 
3087 
3088 
3089 
3090 
3091 
3092 
3093 
3094 
3095 
3096 
3097 
3098 
3099 
304 
766 
767 
768 
769 
770 
Cyprza Squayerii Campbell, Nautilus 7:52, t 2 f 1-2. 
Cythara densistriosa Cpr. 
Cythara fusconotata Cpr. 
Cytherea (Ventricola) Fordi 
Cytherea (Ventricola) Magdalene Dall. 1902. 
Cytherea (Ventricola) rigida Dillwyn. 1817. 
Cytherea multicostata Sby. 1835. 
Cytherea (Amiantis) callosa Conr. 
Cytherea chionaea 
Cytherea crassatelloides Conrad. 
Variety Pauciradiata 
Variety Multiradiata 
Variety Alternata 
Variety Eccentrica 
Variety Serialis 
Variety interrupta 
Variety Luteobrunnea 
Variety Uniradiata 
Variety Biradiata 
Variety Triradiata 
Variety ochracea 
Variety Purpureo-chocolata 
Variety Biseralialis 
Variety Triserialis 
Variety Aurora 
Variety Duplicata 
Cytherea undato-striata Cpr 
Cythna albida Carpenter. 
Daphnella clathrata Gabb. 
Daphnella? fuscoligata Dall. 
Daphnella variegata Carpenter. 
Darina declivis Carpenter. 
Denronotus arborescens Muller. 
Dendronotus iris J. G. Cooper. 
Dendronotus purpureaus? Bergh. 
Dentalium Carpenterianum 
Dentalium hexagonum Sowerby 
Dentalium indianorum Carpenter 
Dentalium megathyris 
