Benson's rock thrush 
Benstonea parva 
Bent Goodenia 
Bent Milkvetch 
Bent-line Carpet Moth 
Bent-line gray 
Bent-spined Acorn Ant 
Bent-winged Owlet 
Bentham's cornel 
Bentstick pipefish 
Beosus maritimus 
Berber Toad 
Berberis libanotica 
Berberis vulgaris 
Berdmore's ground squirrel 
Bergaris malayica 
Bergenia purpurascens 
Bergers Clouded Yellow 
Berkeley's Polypore 
Bermuda buttercup 
Bermuda cedar 
Bermuda chub 
Bermuda Grass 
Bernathonomus piperita