Böhms spinetail 
Bohor reedbuck 
Boiga forsteni 
Boiga trigonata 
Bold-striped tit-babbler 
Bolitoglossa pandi 
Bolivian big-eared mouse 
Bolivian Spiny-backed Frog 
Bolivian squirrel 
Bolivian tapaculo 
Bolivian Tyrannulet 
Bolivian White-lipped Frog 
Bolles pigeon 
Bombay Leaf-toed Gecko 
Bombay night frog 
Bonaire whiptail lizard 
Bonapartes gull 
Bonelli's eagle 
Bonnet Macaque 
Bonnethead shark 
Bontebok 
Boomerang Triggerfish 
Boomslang 
Boophis bottae