Crotaphytus collaris (Say in James, 1823)  

Family: Agamidae

Chihuahuan Collared Lizard, more...Eastern Collared Lizard, Eastern Collared Lizard, Western Collared Lizard, Yellow-headed Collared Lizard

[Crotaphytus baileyi Stejneger, 1890, moreCrotaphytus collaris auriceps Fitch and Tanner, 1951, Crotaphytus collaris baileyi Stejneger, 1890, Crotaphytus collaris collaris (Say in James, 1823), Crotaphytus collaris fuscus Ingram and Tanner, 1971]