Clouded snake 
Coachwhip 
Coastal carpet python 
Coastal taipan 
Cocha Whiptail 
Coelognathus helena monticollaris 
Coelognathus philippinus 
Coffee Palm Viper 
Collared Cat Snake 
Collared Forest Gecko 
Collared iguanid lizard 
Collared Treerunner 
Colombian rainbow boa 
Colorado Desert Sidewinder 
Coluber constrictor 
Common Barking Gecko 
Common Basilisk 
Common Big-eyed Snake 
Common Blunt-headed Tree Snake 
Common Burrowing Skink 
Common Chameleon 
Common chuckwalla 
Common death adder 
Common egg eater