INDEX TO GENERA. 



451 



INDEX TO GENERA, 



1880. 



Abies 333, 341, 350 



Acanthocycles o7 



Acanthodoris 88 



Actteon 366 



Acmoecopleura 188, 204 



Adalaria 75 



Akiodorus 52 



Alee m9 



Ambrosia 343 



Ampelopsis 5 



Amphicarpiea o59 



Amphidesiiia 21, 20 



Anarcbaris 334 



Analcite 252 



Anciliaria 364, 365 



Andromeda 356 



Anomia 21, 24 



Antrozovxs 227 



Aratus 189, 218 



Arctomys 348 



Area 21, 23. 24, 29 



Artemi;^ 21, 23, 24, 25, 29 



Artibeus 393 



Arvicola 348 



Asbolite 243 



Assulina 336, 339 



Astarte 364 



Astrophycus 293 



Astarte 21, 23, 24, 29, 32 



Atalapha 133, 393 



Atta 359 



Betula 343 



Biotite 246 



Bonellia 29 



Brachygrapsus 188, 203 



Branchipus 156 



Buceinum 28 



Bunias 132 



Buthotrephis 293 



Calymene 176 



Cancellaria 29, 365, 369 



Caneer 179 



Canis 348 



Cardita... 21, 24, 364, 365 369 



Carditamera 32 



Cardium 21, 23, 24, 29, 365. 369 



Carex 353 



Cariacus... 895 



Caricella 368, 373 



Carya 348 



Cassidaria 365 



Castanea 35 J 



Castor 848 



Castoroides 317 



Catostomus 237 



Caulolatilus 13, 14 



Centaurea 132 



Centropyxis 338 



Cervus 348 



Chasmagnathus 189, 221 



Chelydra 348 



Chirocephalus 156 



Chromite 273 



Cistudo 348 



Clistocoeloma - 189, 219 



Coilogenys 391, 396 



Tonus 348 



Cookeite 249 



Corbula..21, 23, 24, 25,27, 29, 32, 364 



Cornus 348 



Crassatella 21, 23, 24, 29, 32 



Crepis 132 



Culsageeite 253 



Cyelograpsua 189, 220 



Cyeloloma 132 



Cylicosmilia 864 



Oyonyeteris 393 



Cyperus 132 



Cyrtograpsus 188, 197 



Cytberea,.21, 23, 24, 29, 364, 366, 370 



