Collisella Dall 
Collonia Gray 
Columba Lea 
Columna Perry 
Complanaria Sw. 
Conulema Stol. 
Conulus Fitz. 
Cookia Lesson 
Coptocheilus Gould. 
Coralliophaga Desh. 
Corasia Alb. 
Corbicula Mühlf. 
Corbis Cuv. 
Corbula Curv. 
Coreulum Bolt. 
Corilla Ad. 
Corneola Cless. 
Corona Alb. 
Coronaria Lowe 
Coryda Alb. 
Coryphella Gray 
Costatella Dall 
Crania Müll. 
Cranopsis Ad. 
Craspedaria Lowe 
Craspedopoma Pfr. 
Craspedotus Mhlf. 
Crassatella Lam. 
Crassatina Kob. 
Crassina Lam. 
Craticula Lowe 
Cremides Ad. 
Crenatula Lam. 
Crenella Brown 
Crepidodoris Pag. 
Crista Römer 
Cristaria Schum. 
Cryptella Webb. 
Cryptobranchia Midd. 
Cryptodon Conr. 
Cryptodon Turt. 
Cryptogramma Mörch. 
Cryptomphalus Mogq. 
Cryptomphalus Ehrbg. 
Crystallus Lowe 
Ctenoides Klein 
Ctenopoma Shuttl. 
Cucullaea Lam. 
Cueurbitula Gld. 
Cultellus Schum. 
Cumingia Sow. 
Cyamium Phil. 
Cyane Ad. 
Cyathopoma BIf. 
Cyeladella Carp. 
Cyclas Brug. 
Cyelas Klein. 
Cyelina Desh. 
Cyeclobranchia 
Cyelocardia Conr. 
Cyelomorpha Pease 
Cyelophorus Montf. 
Cyelostomus Montf. 
Cyelostrema Marr, 
Cyelotopsis Blfd. 
Cyelotas Guildg. 
Cyerce Bergh. 
Cylichna Lov. 
«Cylichnidia Lowe 
Cylindrella Pfr. 
Cylindrobulla Fisch. 
Cylindrophaedusa Bttg. 
Cylindrus Fitz. 
Cymbula Ad. 
Cymotropis Mart. 
Cynisia Ad. 
Cypricardia Lam. 
Cyprina Laın. 
Cyrachaea Mörch. 
Cyrena Lam. 
Cyrenastrum Bgt. 
Cyrenocapsa Fisch. 
Cyrenoidea Joann. 
Cyrilla Ad. 
(yrtodaria Daud. 
Cysticopsis Mörch. 
Cytherea Lam. 
Macrydium Torell. 
Dacrystoma Crosse 
Dactylina Gray 
Daedalochila Beck. 
Danielia Brus. 
Darina Gray 
Daronia Ad. 
Daudebardia Hartm. 
Vavila Gray 
Delima Hartm. 
Delphinula ltoiss. 
Delphinulopis Wright 
Dendrolimax Heyn. 
Dendronotus Ald. 
Dentalium L. 
Dentellaria Schum. 
Dentipeeten Rüpp. 
Dermatocera Ad. 
Detracia Gray 
Dexiogyra Stab 
Diadema Pease 
Dialeuca Alb. 
Diancta Mart. 
, Diaphana Brown 
Diaphora Alb. 
Dierama Pf. 
Dilataria Möll. 
Diloma Phil. 
Dimerella Zittel 
Dinia Ad. 
Dione Gray 
Dioryx Bens 
Diphyllidia Cuv. 
Diplodonta Bronn. 
Diplommatina Bens. 
Diplomphalus Crosse 
Diplopelyeia Mörch. 
Diplopoma Pfr. 
Diplothyra Tryon 
Dipsas Leach 
Discartemon Pf. 
Diseina Lam. 
Discodoris Bergh 
Discula Lowe 
Discus Alb. 
Discus Fitz 
Ditropis Blanf. 
Dolabella Lam. 
Dolabrifera Gray 
Donaeicardium Vest. 
Donacilla Gray 
Donacilla Lam. 
Donax L. 
| Dorcasia Gray 
Doriduneulus Sars 
Doriopsis Bergh 
Doris L. 
Dosinia Scop. 
, Doto Oken 
Dreissena van Ben. 
Drepania Laf. 
, Drepanostoma Porr. 
| Drusia Gray 
Drymaeus Alb. 
Dryptus Alb. 
Durgella Bens. 
 Dysnomia Agass. 
Eastonia Gray 
‘ Eburnella Pfr. 
Echinodoris Bergh 
Edentulina Cless. 
ı Edentulina Pfr. 
‚ Edriophthalma 
lara Ad 
Elasmognatha 
Elathia Jssel 
Electrina Gray 
Elenchus Humphr. 
Elizia Gray 
Ellobium Bolten 
Elma Ad. 
Elona Ad. 
Elysia Risso 
, Emarginula Lam. 
Embla Lov. 
Embletonia Ald. 
Emoda \d. ; 
Endodonta Alb. 
Endopleura Ad. 
"Enida Ad. 
Ennea Ad. 
Enneastrum Pf. 
Ensieulus H. Ad. 
‘ Ensis Schum 
Entodesma Phil. 
Eolidina Quatref. 
Epiphragmophora Doer. 
Epirobia Streb. 
Ercolania Trinch. 
Eremina Pfr. 
| Eremophila Kob. 
Erepta Ad. 
Erinna Ad. 
Ervilia Turt. 
Erycina Lam. 
Eucalodium Crcsse, 
Eıcampylara Pfr. 
Eucharis Recl. 
Euchelus Phil. 
\ Eudesia King. 
Eudioptus Alb. 
Eudoxus Alb. 
\ Euferussacia Bgt. 
Euglandina Crosse, 
Euhyalina Alb. 
Enlota. Hartm. 
Eumeecostylus Alb. 
Eumenis Ald. 
