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Scientific name: Petrosaurus mearnsi
Common name: Banded Rock Lizard
Size: 2.5-3.5 in (6.2-8.7 cm)
Distinguishing characters: An extremely flat bodied lizard with an olive, brown or grey dorsum and white or bluish spots on dorsum; single black collar, banded tail; granular scales on body with keeled tail and limb scales.
Juveniles: Similar to adults.
Dimorphism: Male has more pronounced throat pattern and brighter blue coloring; enlarged postanal scales.
Similar species: Crotaphytus bicinctores, Crotaphytus vestigium: Granular scales on tail, two dark collars; body shape not flattened.
Additional notes: Uncommon west of desert slope. Associated with boulder hillsides.
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