Crotaphytus nebrius

The Sonoran collared lizard (Crotaphytus nebrius) is a species of lizard in the family Crotaphytidae. The species is endemic to the U.S. state of Arizona and the Mexican state of Sonora.

Description
C. nebrius is a grayish-yellow with grayish-white spots, which are large down the middle of the body, and small on the sides.

Behavior
Adults of C. nebrius are primarily active during spring and summer; the juveniles can be active until November.

Reproduction
C. nebrius is oviparous.