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Texas Spiny Lizard vs. Crevice Spiny Lizard

They meet on the Edwards Plateau and the Rio Grande plains: the Texas Spiny on trees, the Crevice Spiny on rocks. A: No collar in the Texas Spiny Lizard; a black collar across the neck, edged white in the Crevice Spiny Lizard. B: Grey with faint dark marks in the Texas Spiny Lizard; boldly ringed with black and pale bands in the Crevice Spiny Lizard. Young Crevice Spiny Lizards have bold dark crossbands and the same collar.

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Texas Spiny Lizard

Sceloporus olivaceus

Crevice Spiny Lizard

Sceloporus poinsettii
Texas Spiny Lizard vs. Crevice Spiny 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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