INDEX TO CERION. 



[NOTE. Names of generic and subgeneric groups are in SMALL CAPITALS; of 

 species and varieties in Roman, and of all synomys in italic type.] 



Crassiusculum Torre. . .202 



Cumingianurn Ptr. . .198 



Curtissii Mayn. . . .256 



Cyclostoma Kiist. . .196 



Cyclostoma Sowb. . .201 



Dalli Mayn. . . .276 



Decumana Gray . 209, 281 



Decumana Poey . . 225 



Decumanus Fer. . 236, 281 



Desculptum P. & V. . . 181 



DIACERION Dall. . 179, 271 



Dimidiatum Pf'r. . . 205 



Duplodon P. & V. . . 276 



Eburneum Mayn. . . 252 



Edentula Beck . . .227 



Eleutherae P. & V. . . 240 



Elegans Beck . . .281 



Elongatum Mayn. . . 253 



EOSTROPHIA Dall. . 179, 280 



Eucosmium P. & V. . . 233 



Eurystoma Mayn. . 227, 228 



Evolva Mayn. . . .263 



Eximea Mayn. . ... 265 



Eximium Mayn. . . 265 



Fasciata Mayn. . . . 215 



Fasciatum W. G. B. . . 215 



Fastigata Mayn. . 227, 228 



Felis P. & V. . . . 221 



Ferrugineum Mayn. . .195 



Festiva Mayn. . . .190 



FloridanumDall . . 280 



Fordii P. & V. . . . 270 



Fraternum Pils. . . 265 



Fusca Mayn. . . 185, 186 

 Fusus (Bulimus) Brug. . 281 



(284) 



