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Scientific name: Crotaphytus bicinctores
Common name: Great Basin Collard Lizard
Size: 2.75-4.57 in (6.9-11.6 cm)
Distinguishing characters: A large-bodied species with a broad head, short snout, granular scales, and two distinct black collar markings; collar markings separated at dorsal midline by no more than 12 pale scales; tan to olive colored; light lines and spots and yellowish to orangish crossbands on body.
Juveniles: Similar to adults, more distinct banding.
Dimorphism: Male has enlarged postanal scales, blue-grey throat and large dark blotches on flanks.
Similar species: Crotaphytus vestigium: Black collars separated by more than 12 light scales. Gambelia copei, Gambelia wislizenii: Lack black collars.
Additional notes: Very uncommon. Powerful runner; bipedal. Adults can inflict painful bite. Prefers rocky areas, particularly washes.
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