Abbott's Day Gecko 
Acanthosaura cardamomensis 
Acanthosaura crucigera 
Aesculapian snake 
African striped skink 
Agama aculeata 
Agkistrodon contortrix 
Allen's Coral Snake 
Alligator Lizard 
Amazon Basin Emerald Tree Boa 
Amazon Blunt-headed Tree Snake 
Amazon Forest Dragon 
Amazon lava lizard 
Amazon tree boa 
Amazon Whipsnake 
Amber Mountain chameleon 
Ameiva atrigularis 
Ampijoroa Tree Snake 
Anatololacerta oertzeni pelasgiana 
Andaman Bronze-back 
Angel's chameleon 
Anguilla Bank anole 
Anolis antonii 
Anolis apletophallus