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Greater Earless Lizard vs. Western Earless Lizard

Both are earless lizards of open ground; they meet in eastern Arizona, New Mexico and west Texas. A: Broad, continuous black crossbands on white in the Greater Earless Lizard; plain white in the Western Earless Lizard. B: Curled high over the back, flashing the black-and-white bands in the Greater Earless Lizard; held low, trailing straight behind in the Western Earless Lizard. C: Just in front of the hind legs in the Greater Earless Lizard; just behind the front legs in the Western Earless Lizard. Owner table note: the Spot-tailed Earless Lizard (H. lacerata, Texas) has round black spots under the tail; Arizona's Western (Common Lesser) Earless has a plain white tail underside.

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Greater Earless Lizard

Cophosaurus texanus

Western Earless Lizard

Holbrookia maculata
Greater Earless Lizard vs. Western Earless Lizard: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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