INDEX. 



Page. 



ACASTA 26 



Acera 160 



Achatina 183 



Ammonites 307 



Ammonoceratifes . • . 308 



Amphidesma 49 



Amphitrite 16 



Ampullaria 197 



Anatifera 28 



Anatina 43 



Ancillaria 29 1 



Ancylus 159 



Anodon 93 



Anomia 130 



Anostoma 176 



Area 83 



Arenicola 13 



Argonauta 308 



Aspergillum 31 



Auricula 186 



Avicula no 



Page. 



Baculites 308 



Balanus 25 



Belemnites 302 



Birostrites 132 



Buccinum 262 



Bulimus 181 



Bulla 161 



Bullaea 160 



Calceola 132 



Calyptreea 157 



Cancellaria 23 1 



Capsa 63 



Cardita 78 



Cardium 75 



Carinaria 310 



Carocolla 175 



Cassidaria 251 



Cassis 252 



Castalia 89 



Cerithium 226 



Chama 96 



