Bedriaga's Wonder Gecko 
Bedriagas rock lizard 
Beech marten 
Beisa Oryx 
Belchers gull 
Belding's ground squirrel 
Belford's Melidectes 
Bell Miner 
Bell's Angle-headed Dragon 
Bell's Dabb Lizard 
Bell's sparrow 
Bells vireo 
Belted cardinalfish 
Belted kingfisher 
Bendires thrasher 
Bengal fox 
Bengal monitor (Indian monitor) 
Bengal Snapper 
Bengal tiger 
Benguela long-billed lark 
Bennett's pufferfish 
Bennett's woodpecker 
Benson's rock thrush 
Bentstick pipefish