Brazilian lancehead 
Bridled Forest Gecko 
Bridled mabuya 
Brilliant ground agama 
Broad-headed skink 
Broad-headed Snake 
Broad-snouted Caiman 
Broad-tailed Girdled Lizard 
Bronze Anole 
Bronze Mabuya 
Brookesia ramanantsoai 
Brookesia vadoni 
Brown anole 
Brown Basilisk 
Brown kukri snake 
Brown Prionodactylus 
Brown Sipo 
Brown tree snake 
Brown Vine Snake 
Brown water snake 
Brown Whip Snake 
Brown Wolf Snake 
Brown wood turtle 
Brown-banded water snake