1. Nocturnal burrowing toad of mesquite woodland and prairies of the United States southwest
   - Bufo speciosus

Type of: true toad

• genus Brassia
• genus Brassica
• genus Brevoortia
• genus Brickelia
• genus Brodiaea
• genus Bromus
• genus Brontosaurus
• genus Broussonetia
• genus Browallia
• genus Browmius
• genus Bruchus
• genus Bruckenthalia
• genus Brugmansia
• genus Brunfelsia
• genus Brya
• genus Bryanthus
• genus Bryonia
• genus Bryum
• genus Bubalus
• genus Bubo
• genus Bubulcus
• genus Bucephala
• genus Buceros
• genus Buchloe
• genus Buckleya