Abbott's Day Gecko 
Acanthosaura cardamomensis 
Acanthosaura crucigera 
Aesculapian snake 
African rock python 
African striped skink 
Agama aculeata 
Agkistrodon contortrix 
Alburzi viper 
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