Bright-rumped yellow finch 
Brilliant ground agama 
Brilliant-thighed poison frog 
Brimstone Canary 
Brimstone canary 
Bristle-crowned starling 
Bristle-nosed barbet 
Bristle-tail filefish 
Bristly Tunicate 
Brittle sea squirt 
Broad-billed hummingbird 
Broad-billed motmot 
Broad-headed frog 
Broad-headed skink 
Broad-headed Snake 
Broad-ringed white-eye 
Broad-snouted Caiman 
Broad-tailed Girdled Lizard 
Broad-tailed hummingbird 
Broad-winged hawk 
Broadhead flathead 
Broadnose sevengill shark 
Broadstripe shiner 
Brolga