West Texas into north central Mexico, with an isolated population just south of that in central Mexico.
Dry, rocky habitats with little vegetation, such as cliff sides and boulder piles.
Rough, spiny scales down back and tail. To camouflage with their rocky habitat, they are mainly greyish tan in color, with some darker grey, white, or yellow speckling on back. Long legs and toes with a relatively small narrow head and pointed snout. Can grow to just over 6 inches in length, including tail. They have a vertical black line in front of their shoulder. Ventrum has a pale stripe down the center, surrounded by vibrant blue coloration blending into pale orange on their sides.
Learn more with Schechter Natural History's Guide to Reptiles and Amphibians