^12 Mollusca. 



Cryptosoma, Theobald m As. Soc. Joum. 252. 1857. . GASTEROPODA. 

 Oryptospira, Hiuds. Zool. voy. Sulphur. 1845. (Marginella.) 



GASTEROPODA. 

 Crystallus, Lowe. Proc. Zool. Soc 178. 1854. (Helix.) GASTEROPODA. 

 Ctenocardia, H. et A. Adams. Gen. H. 459. 1858. (Cardium.) BIVALVIA. 



Ctenopoma, Shuttleworth. PfeiflFer. 4856 GASTEROPODA. 



CucuUella, M' Coy. ? Foss. 



Cucumaria, Conrad m Philad. Ac N. Sc Proc VI. 1853. . BIVALVIA. 



Cuneus, Dacosta iu brit. Conch. 202. 1778 BIVALVIA. 



Cutliona, Alder et Haucock in Gray Guide Moll. Brit. Mus. 225. 1857. 



GASTEROPODA. 

 Cyanocyclas, (Ferussac.) Bourguignat in Bordeaux. Soc. Linu. I. 1854. 



BIVALVIA. 

 Cyathodonta, Conrad in Philad. Proc IV. et Ann. N. h. IV. 1849. 



BIVALVIA. 

 Cyathopoma, Blanford in Ann. N. h. XIII. 449. 1864. GASTEROPODA. 

 Cycladella, Carpeuter in Philad. Ac n. Sc. Proc 270. 1865. BIVALVIA. 

 Cycladicama, (Valenciennes.) Rousseau iu Voy. au Pole Sud. V. 116. 1854. 



BIVALVIA. 

 Cyclas, Klein in Tent. meth. ostr. 1753. (Lucina, Brg.) . . BIVALVIA. 



Cyclina, Deshayes in Traite elem. de Couch. 1850 BIVALVIA. 



Cyclocardia, Conrad in Am. Journ. Conch. IIL 191. 1867. . BIVALVIA. 

 Cyclohelix, Morch in Cat. Yoldi. I. 41. 1852. (Cyclophorus.) 



GASTEROPODA. 

 Cyclonema, J. Hall in Geol. of New-York. II. 1853. GASTEROPODA. Foss. 

 Cyclophorus, Pfeiffer in Zeitschr. f. Malac. 45. 1847. GASTEROPODA. 

 Cyclora, Hall iu Sllliman Am. Journ. XLVIIL 1847. . GASTEROPODA. 

 Cyclolopsis, Blanford in Ann. Mag. N. h. XIII. 447. 1864. GASTEROPODA. 

 Cyclotus, Guilding in Swains. Treat. Mal. 186. 1840. . GASTEROPODA. 

 Cylichna, Loyen in Ind. MolL litt. Scaud. occ 1846. . GASTEROPODA. 

 Oyhchnidia, Lowe in Proc. Zool. Soc. 206. 1854. (Achatina.) 



GASTEROPODA. 

 Oylindrina, Schmter in syst. Verz. 7. 1838. (Bulimus.) GASTEROPODA. 

 Cylindrites, Morris et Lycett in Moll. Gr. Ool. I. 1850. 



GASTEROPODA. Foss. 

 CylindrobuUa, Eischer in Journ. de Conch. 2. L 1857. GASTEROPODA. 

 Cylindrus, Meuschen. (1787) MOrch in Cat. Yoldi. L 139. 1852. (Oliva.) 



GASTEROPODA. 

 Oymalium, Bolten in Mus. Bolten. 1798. (Tritonium.) GASTEROPODA. 

 Cymba, Brod in Sow. gen. Shells. 1826. = Cymbium, Montf. 



GASTEROPODA. 



Cjrmbium, Kleiu in Teut. meth. ostr. 1753 GASTEROPODA. 



Oymbula, H. et A. Adams. Gen. I. 466. 1858. (Patella.) GASTEROPODA. 

 Oymotropis, t. Martens et Albers in Heliceen. 2. Ausg. 169. 1860. (Helix.) 



GASTEROPODA. 

 Cjmisca, H. et A. Adams. Gen. I. 406. 1858. (Cylostrema.) GASTEROPODA. 

 Cjrphoma, Bolteu in Mus. Bolt. 1798. (Orula.) .... GASTEROPODA. 

 Oypraeova, Swainson in Treat. mol. 1840. = Cupraeovula, Gray. 



GASTEROPODA. 

 Cypricardella, J. Hall in Albany Inst. Trans. IV. 1856. BIVALVIA. Foss. 

 Cyprinella, Gabb in Geol. Surv. of Calif. Pal. L 1864. BIVALVIA. Foss. 

 Cyprogenia, Agassiz in Wiegm. Arch. XVIII. 1. 47- 1852. . BIVALVIA. 

 Cyrenastrum, Bourguignat in Bordeaux Soc Linn. Mem. I. 1854. 



BIVALVIA. 



