Crotaphytus - Species Dictionary - Global : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

Catalogue of Life
Amphibians and Reptiles
Animalia, Chordata, Reptilia, Squamata, Crotaphytidae, Crotaphytus
Crotaphytus antiquus, Crotaphytus collaris, Crotaphytus grismeri, Crotaphytus insularis, Crotaphytus nebrius, Crotaphytus reticulatus, Crotaphytus vestigium