Abbott's Day Gecko 
Acanthosaura capra 
Acanthosaura crucigera 
Aesculapian snake 
African keeled mud turtle 
African spurred tortoise 
African striped skink 
Agama aculeata 
Agkistrodon contortrix 
Aldabra giant tortoise 
Allen's Coral Snake 
Alligator Lizard 
Alligator snapping turtle 
Amazon Basin Emerald Tree Boa 
Amazon Blunt-headed Tree Snake 
Amazon Forest Dragon 
Amazon lava lizard 
Amazon tree boa 
Amazon Whipsnake 
Amber Mountain chameleon 
Amboina box turtle 
Ameiva atrigularis 
American Alligator 
American Crocodile