Battus barbicornis 
Batu Coris 
Batuna's Damselfish 
Batwing Cicada 
Batwing slug 
Baudin's Black Cockatoo 
Baudó guan 
Baudó oropendola 
Bauhinia aculeata 
Bauhinia grandidieri 
Bauhinia morondavensis 
Bauhinia petersiana 
Baumann’s Mountain Fritillary 
Bavia capistrata 
Baxters Banksia 
Bay antpitta 
Bay barnacle 
Bay Bolete 
Bay Islands Forest Lizard 
Bay laurel 
Bay Nettle 
Bay woodpecker 
Bay wren 
Bay-backed shrike