#cophosaurus

Greater Earless Lizard (Cophosaurus texanus), male in breeding colors, family Phrynosomatidae, West TX, USA

Greater Earless Lizard (Cophosaurus texanus), male in breeding colors, family Phrynosomatidae, NM, USA

Greater Earless Lizards (Cophosaurus texanus), males in breeding colors, family Phrynosomatidae, found in the SW United States

Greater Earless Lizard (Cophosaurus texanus), male in breeding colors, family Phrynosomatidae, Superior, AZ, USA

Greater Earless Lizard - Cophosaurus texanus | ©Jason Penney

Cophosaurus texanus (Phrynosomatidae) is a species of earless lizard endemic to the Southwest of the US, from Texas to Arizona, and Mexico. 

The diagnostic features of this lizard are: the presence of two throat folds (one weak), the absence of external ear openings, and a flattened body and tail. It also has black crossbars on ventral surface of tail. Males have two distinct black lines in a field of blue and yellow anterior to the hind legs that wrap onto the venter and stop abruptly [source].