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Crevice Spiny Lizard vs. Eastern Collared Lizard

Both are big rock lizards of southern New Mexico canyons with black collars (records share 56 one-degree squares). A: ONE black collar, edged white in the Crevice Spiny Lizard; tWO black collars in the Eastern Collared Lizard. B: Big, pointed, keeled scales: a spiny look in the Crevice Spiny Lizard; tiny smooth grain-like scales; a big head in the Eastern Collared Lizard.

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Crevice Spiny Lizard

Sceloporus poinsettii

Eastern Collared Lizard

Crotaphytus collaris
Crevice Spiny Lizard vs. Eastern Collared 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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