Boa constrictor 
Boa constrictor imperator 
Boa dumerili 
Boaedon mentalis 
Boana courtoisae 
Boat-billed flycatcher 
Boat-billed Heron 
Boat-tailed Grackle 
Bobcat 
Bobiri Reed Frog 
Bobolink 
Bobtail Skink 
Bocage's sunbird 
Bocages akalat 
Bocages wall lizard 
Bocourt's Agama 
Bocourt's Dwarf Iguana 
Bocourt's Emerald Lizard 
Boddaert's Tropical Racer 
Boddart's Blue-spotted Mudskipper 
Boelen's python 
Boettger's Clawless Gecko 
Bohemian Waxwing 
Böhme's Bright-eyed Frog