Common wall lizard 
Common Water monitor 
Common zebra-tailed lizard 
Concho Water Snake 
Confused Coral Snake 
Cope's Vine Snake 
Copper-tailed ctenotus 
Copper-Tailed Skink 
Copperhead 
Corallus ruschenbergerii 
Corn snake 
Costa Rica Water Snake 
Costa Rican Coralsnake 
Crab Cay Anole 
craspedocephalus malabaricus 
Crested Anole 
Crested Bicycle-dragon 
Crested gecko 
Cretan wall lizard 
Crocodile tegu 
Crossobamon orientalis 
Crotaphytus bicinctores 
Crowned False Boa 
Ctenosaura quinquecarinata