INDEX OF GENERA. 



Abra 288, 574 



Abronia 7, 167 



Acanthocybium 125 



Acantholatris 114 



Acantholis 176 



Acer 12 



Acteon 570 



Actinobolus 578 



Actinella 164 



Acus 565 



-Echmophorus 229, 404 



^Edilis 39 



JBgialitis 321 



JEstrelata 327 



Agama 340 



Agelaius 313 



Agonoidae 332 



Agrion 386 



Agrostis 90, 334 



Alausa 281 



Alcedo 318 



Alepidosauroida 127, 332 



Alsophis 74-77 



Aluatta 507-515 



Alepidosaurus 128 



Atnblycirrhitus 105 



Arablyopodinse 240 



Amblystoma 66 



Ameiva 61, 351 



Amia 251 



Amiina? 237 



Ammonites 23 



Amnicola 452 



Amorpha 162 



Ampelopsis 162 



Amphidesma 574 



Amphisbaena 350 



Amphistichus 275 



Amycla 287, 564 



Amusium 582 



Anas 322 



Anaspini 43 



Anaspis 43 



Anatinidse 572 



Anchomasa 208 



Ancylodon 16, 18 



Anguinella 568 



Angulus 573 



Anodonta 169 



Anolis 176 181, 356 



Anomia 582 



Anomolocardia. , 289, 580 



Anous 326, 557 



Antaceus 331 



Antennaroidse 241 



Anthus 318 



Antrozous 246, 248 



Aphanopus 126 



Aphanostephus 164 



Aplopappus 164 



Apodichthys 279 



Apodontis 125 



Apolectus 126 



Apseudobrancbus 18 



Arbutus.. 165 



Architect onica 566 



Archoscion 18 



Arcidae 2S9, 579 



Arcinella 576 



Ardea 321 



Arenaria 166 



Argentina 14 



Argentininaa 14 



Argina 580 



Argynnis 54, 221 



Argyrosomus 15 



Aristida 92, 334 



Arrhyton 82 



Artedius 279 



Aseraum 42 



Aspidocottus 279 



Aspidonectes 191 



