Phrynocephalus mystaceus

Phrynocephalus mystaceus, also known as the secret toadhead agama and toad-headed agama, is a species of agamid lizard. It is found in southern Russia, Kazakhstan, and northwestern China (Xinjiang) and southward to northern Iran, Afghanistan, Turkmenistan, Tajikistan, Kyrgyzstan, and Uzbekistan.

Subspecies
Two subspecies are recognized:

Habitat
Phrynocephalus mystaceus is generally associated with unvegetated tops of large, high sand dunes and occurs at elevations of -45 – above sea level.