Berber Toad 
Berdmore's ground squirrel 
Bermuda chub 
Bernier's Striped Snake 
Berniers teal 
Berthelots pipit 
Beryl-spangled Tanager 
Besra 
Betroka Leaf-toed Gecko 
Betsileo Reed Frog 
Bewicks wren 
Bezoar ibex 
Bharal (blue sheep) 
Bhutan laughingthrush 
Biak coucal 
Biak Paradise-Kingfisher 
Biak scops owl 
Bicolor angelfish 
Bicolor blenny 
Bicolor chromis 
Bicolor Cleaner Wrasse 
Bicolor damselfish 
Bicolor goatfish 
Bicolored antbird