2 
INDEX TO NEW GENERA AND SUBGENERA. 
Amcebotsenia, Cohn, Verm. 36 
Amorphocystis, JaeJcel, Ech. 93 
Amphilepida, Dali, Moll. 83 
Amphilimna, Verrill, Ech. 74 
Amphiocnida, Verrill, Ech. 74 
Amphiodia, Verrill, Ech. 74 
Amphioplus, Verrill, Ech. 74 
Amphipsila, Verrill, Ech. 74 
Amphoroides, Labbe, Prot. 24 
Anadasmus, Looss, Verm. 39 
Anagramma, Ogilby, Pisces 18 
Anagymnites, Hyatt, Moll. 56 
Anahamulina, Hyatt, Moll. 56 
Anahedenstroemia, Hyatt, Moll. 
56 
Anahoplites, Hyatt, Moll. 56 
Analytoceras, Hyatt, Moll. 56 
Ananconia, Seidlitz, Ins. 138 
Anascaphites, Hyatt, Moll. 56 
Anataelia, Bolivar, Ins. 268 
Anaulacodesmus, Attems, Myr. 11 
Anchitrema, Looss, Verm. 39 
Ancolioceras, Buchnan, Moll. 56 
Ancora, Labbe, Prot. 24 
Andasenodes, Moore, Ins. 192 
Andrallochroma, Karsch, Ins. 200 
Aneulobus, Faust, Ins. 140 
Aneurystoma, Cossmann, Moll. 71 
Anisocolpia, Warren, Ins. 214 
Anoiktostoma, Stossich, Verm. 39 
Anomotheca, Schilsky, Ins. 131 
Anoncodina, Seidlitz, Ins. 138 
Anoploceras, Hyatt, Moll. 59 
Anopsobius, Silvestri, Myr. 7 
Anotoceras, Hyatt, Moll. 56 
Ansorgea, Warren, Ins. 214 
Antharmostes, Warren, Ins. 214 
Antheniaster, Verrill, Ech. 68 
Anthinochroma, Berg, Ins. 273 
Anthobaphus, Faust, Ins. 140 
Anthorhynclius, Labbe', Prot. 24 
Anthracoceras, Freeh, Moll. 56 
Anthracodesmus, Peach, Myr. 11 
Antichromus, Richmond, Aves 63 
Apaturopsis, Aurivillius, Ins. 192 
Apedogyria, Buchnan, Moll. 56 
Aphanotsenia, Cossmann, Moll. 75 
Aphelocephala, Oberholser, Aves 62 
Aphilopota, Warren, Ins. 214 
Aphonogryllus, Perlcins, Ins. 270 
Aphonomyrmex, Emery, Ins. 175 
Aphorme, Schulze, Spong. 10 
Aphractia, Kirby, Ins. 271 
Aphrastnra, Oberholser, Aves 71 
Apistocerus, Fairmaire, Ins. 132 
Aplanetes, Sharp, Ins. Ill 
Apleuroceras, Hyatt, Moll. 56 
Aplococeras, Hyatt, Moll. 56 
Aplosporidium, Caullery and Mesnil, 
Prot. 24 
Aponomma, Neumann, Arachn. 27 
Apororhynchus, Shipley, Verm. 47 
Aprosthema, Konow, Ins. 186 
Apsithra, Moore, Ins. 192 
Apsorroceras, Hyatt, Moll. 56 
Apteropompilus, Brauns, Ins. 172 
Aradomorpha, Champion, Ins. 246 
Arseosciurus, Nelson, Mamm. 29 
Archactis, Verrill, Ccel. 18 
Archegocystis, Jaekel, Ech. 93 
Archipolydesmus, Attems, Myr. 11 
Arctiites, Rebel, Ins. 95 
Arctoceras, Bohm, Moll. 56 
Arctoceras, Hyatt, Moll. 56 
Argasidus, Peringuey, Ins. 132 
Argogorytes, Aslimead, Ins. 172 
Arniscus, Distant, Ins. 242 
Arthriticosoma, Lea, Ins. 140 
Arthroseps, Boulenger, Kept. 18 
Ascaphus, Stejneger, Rept. 29 
Ascleronia, Seidlitz, Ins. 138 
Ascleropsis, Seidlitz, Ins. 138 
Ascocotyle, Looss, Verm. 39 
Asconiscus, Sars, Crust. 24 
Ashmunella, Pilsbry & Cockerell, 
Moll. 64 
Asphalesia, Weise, Ins. 155 
Aspidoptera, Coquillett, Ins. 241 
Aspidula, Philippi, Rept. 22 
Aspilaria, Standinger, Ins. 214 
Astalbus, Fairmaire, Ins. 133 
Asthenoceras, Buckman, Moll. 56 
Astlienopliolis, Brenske, Ins. 117 
Asthenotricha, Warren, Ins. 214 
Astia, Looss, Verm. 39 
Astyphlinus, Reitter, Ins. 140 
Astyphlus, Reitter, Ins. 140 
Asymphylodora, Looss, Verm. 39 
Ateleaspis, Traquair, Pisces 40 
Ateloglossa, Coquillett, Ins. 237 
Atharia, Moore, Ins. 192 
Atliesmia, Looss, Verm. 39 
Atoconeura, Karsch, Ins. 264 
Atyposoma, Boidenger, Pisces 19 
Auchenistius, Evermann and Marsh, 
Pisces 24 
Aulacocnemus, Faust, Ins. 140 
Auletris, Breddin, Ins. 242 
Aulicina, Rovereto, Moll. 72 
Auliscus, Saemundsson, Coel. 10 
Aulodrilus, Bretscher, Verm. 29 
Austrosarepta, Hedley, Moll. 86 
Azygia, Looss, Verm. 39 
Bacalora, Moore, Ins. 192 
