Barbets 
Barbicans 
Barbicornis 
Barbus 
Baridius 
Bariphonus 
Barita — 
Barula 
Barynotus 
Basiliscus 
Bathyergus 
Batolithes 
Batrachia 
Batrachus 
Bats 
Bdella 
Bdella 
Bearded Titmouse 
Bears 
Beaver 
Bee-eaters 
Beef-eaters 
Bees 
Belemnites 
Bellerophon 
Belone 
Belostoma 
Belyta 
Bembecides 
Bembex 
Bembidium 
Berenix 
Beris 
Bernacles 
Beroe 
Berosus 
Berthella 
Beryx 
Bethylus 
Bethylus 
Bethylus proper 
Bibio 
Biblis 
Bidens 
Bigenerina 
Biloculina 
Bimana 
Bipartiti 
Bipeltata 
Bipes 
Biphora 
Biphora proper 
Birds 
Birgus 
Birostrites 
Bithynus 
Bitoma 
Bittacus 
Bitterns 
Blaps 
Blaps proper 
Blaptinus. 
GENERAL INDEX, 
Vol. I 
I 
47 
50 | 
Blatta 
Blemus 
Blennius 
Blennius proper 
Blepharis 
Blepsias 
Blethisa 
Boa 
Boat-bills 
Bocydium 
Bolbocerus 
Boletina 
Bolitophila 
Bombinator 
Bombus 
Bombycilla 
Bombycites 
Bombylius 
Bombylius proper 
Bombyx 
Bonellia 
Boobies 
Boops 
Bopyrus 
Boreus 
Boros 
Bos 
Bostrichus 
Bostrichus proper 
Bothrops 
Bothryocephalus 
Botryllus 
Botys 
Brachelytra 
Brachiella 
Brachinus 
Brachionus 
Brachiopoda 
Brachonyx 
Brachycerus 
Brachyderes 
Brachylophus 
Brachyopa 
Brachy ptera 
Brachypus 
Brachypus 
Brachystoma 
Brachyura 
Bracon 
Bradybatus 
Bradypus 
Brama 
Branchellion 
Branchiobdella 
Branchiobdellion 
Branchiopoda 
Branchipus 
Branchycephalus 
Brassolis 
Brentus 
Breviceps 
Brevipennes 
