INDEX TO GENERA. 



Ablades, 138 



Achaenodon, 12, 18, 80, 84, 88 



Aciona, 190 



Acirsa, 190 



Aclis, 358 



Actseonella, 281 



Acrilla, 190 



Acrodobatis, 250 



Adeorbis, 365 



^tobatis, 244 



Agalychnis, 95, lOT 



Agaria, 288 



Ahaetulla, 132 



Alodes, 95 



Amiva, 116, 15Y, 165 



Ammonites, 264 



Amoea, 190 



Amphisbaena, 116 



Ampullina, 264 



Anaplotherium, "73, 19 



Anchippodus, 76, 81 



Ancistrodon, 149 



Anchitherium, 74, "76 



Anodonta, 67 



Anolis, 95, 119, 157, 165 



Anomia, 295, 380 



Anthracotherium, 79 



Area, 264,291,345, 378 



Architectonica, 359 



Artemisia, 94 



Arthromitus, 427, 442, 444 



Arvicola, 71, 72 



Assiminea, 408 



Astarte, 376 



Atelopus, 94, 95, 96, 102 



Atlanta, 349 



Atropis, 405 



Avicula, 290 



Axinsea, 346, 378 



Barbatia, 290 

 Basiliscus, 125, 156 

 Bathmodon, 71, 73, 75, 77, 83, 



88 

 Bath3''gnathus, 449 

 Belemnoziphius, 226 

 Beluga, 72 

 Boa, 130, 177 



Bothriechis, 94, 95, 149, 150 

 Bothriopsis, 149, 150 

 Bothrops, 131, 151, 181 

 Botriopygus, 300 

 Bradypus, 72 

 Brontotherium, 87 

 Bufo, 94, 96, 99, 155 

 Bulla, 370 

 Bunotherium, 89 

 Bursa, 353 



Caecum, 363 

 Calliostoma, 366 

 Callista, 344, 372 

 Carcharodon, 236, 253 

 Cardiocardites, 288 

 Cardita, 287, 288, 377 

 Cardium, 264, 286, 344, 374 

 Caryatis, 373 

 Cassidaria, 356 

 Cassidea, 356 

 Cassis, 356 

 Castor, 71 

 Catostoma, 94, 146 

 Cemophora, 142 

 Centropyx, 162 

 Ceratoptera, 248 

 Cerithium, 264, 360 

 Cervus, 85 

 Ceterhinops, 230 

 Chalcidolepis, 95, 116 



Chalicotherium, 85 

 Chama, 375 

 Chamaeleolis, 166 

 Chelopus, 153 

 Chilomeniscus, 141 

 Chinchilla, 72 

 Chionactis, 142 

 Chiromys, 71 

 Choeromorus, 84 

 Chondrella, 407 

 Choneziphius, 218 

 Cinosternum, 153 

 Cinulia, 280 

 Cirsotrema, 190 

 Clathrus, 190 

 dementia, 344 

 Cnemidophorus, 164 

 Coecilia, 155 

 Coenotherium, 87 

 Coleonyx, 118 

 Colobognathus, 95, 148 

 Colosteus, 95 

 Columbella, 355 

 Coniophanes, 137 

 Conophis, 95, 137 

 Conopsis, 141 

 Contia, 94, 145 

 Conus, 359 



Corbula, 283, 343, 370 

 Corythophanes, 124, 156 

 Craniopeltis, 159, 173 

 Cranopsis, 94, 96 

 Crassatella, 287, 345 

 Crenella, 377 

 Crepidius, 94, 97 

 Crocodilurus, 162 

 Crotalus, 95, 152 

 CucuUsea, 291 

 Cyclina, 344 



(453) 



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