326 
INDEX, 
controversus, 185. 
Conulus, 99. 
cordata, 184. 
Cordula, 268. 
cornea, 221, 233, 251, 252, 253, 255, 
257. 
Corneola, 119. 
corneum, 252. 
corneus, 65, 66, 197, 203, 233, 
cornu-arietis, 233. 
Cornucopia, 104, 105. 
Cornulus, 99. 
corrugata, 132, 133. 
Corvus, 208. 
costata, 119, 120. 
costatus, 220. 
crassa, 245, 272. 
Crassissima, 277. 
Crassiuscula, 272. 
crassula, 187. 
crenellus, 119. 
crenulata, 123. 
Crepidula, 218, 219, 221. 
crepuscularis, 129. 
cretacea, 153. 
cristallina, 98. 
cristata, 35, 36, 37, 236. 
cristatus, 35, 36, 237. 
cruciata, 186. 
crystallina, 30, 31, 93, 94, 98, 119. 
crystallinus, 98. 
Ctenobranchiata, 9. 
curta, 171. 
curvirostris, 279. 
Cyclad^e, 247, 250. 
Cyclas, 251, 252, 253, 254, 255, 256, 
257, 266, 268, 269. 
Cyclostoma, 6, 17, 26, 27, 31, 32, 35, 
39, 40. 
cyciostoma, 219. 
Cyclostomidae, 16, 17, 18. 
Cygnaei, 275. 
cygnea, 272, 274, 275. 
cygneus, 270, 271, 272, 273. 
cylindracea, 161, 162. 
cylindraceus, 162. 
Cylindrella, 181. 
cylindrica, 169. 
Cyprasae, 161, 
Cyrena, 269. 
dalmatica, 47. 
Damaris, 276, 277. 
decipiens, 27. 
decollatup, 163. 
deformis, 240. 
delectabilis, 139. 
Delomphalus, 141, 143, 144. 
dentatus, 272. 
denticulata, 189, 192, 193, 194. 
denticulatus, 191, 192, 193, 194, 
depertidus, 220. 
depilata, 134, 137. 
depressa, 35, 36, 87. 
derugata, 182, 183. 
Deshayesii, 279. 
Deshayesianum, 257. 
diaphana, 87. 
Dillvvynii, 87. 
disciformis, 238, 239. 
Discus, 98, 142, 143. 
disjuncta, 125, 126, 208. 
domestica, 78. 
Doublieri, 210. 
Draparnaldi, 87, 240. 
Draparnaudii, 87, 92, 162, 240. 
Dreissena, 259, 260, 261. 
Dreissenadae, 247, 250, 258. 
Drilus, 110. 
dubia, 127, 195. 
Dupuyanum, 267, 
Dupuyi, 273. 
eburna, 98. 
eburnea, 159. 
edentula, 161, 167, 168. 
edentulus, 168. 
Edrioptbalmia, 16. 
edule, 28. 
edulis, 47, 81, 111. 
electrina, 93. 
elegans, 6, 17, 18, 19, 67, 125, 126, 
143, 206, 
Elismia, 153, 
elliptica, 87. 
Elona, 25. 
elongata, 87, 148, 211, 272, 277. 
elongatula, 279. 
elongatus, 211, 277, 278. 
empiricorum, 69. 
Ena, 150, 151. 
erica, 127. 
ericetorum, 64, 73, 125, 127, 241. 
