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Arizona Night Lizard vs. Desert Night Lizard

They meet in west-central Arizona; the Desert Night Lizards of the northwest rock crevices can look like the Arizona Night Lizard. A: Bold dark spots, often in rows, on yellow or light olive in the Arizona Night Lizard; small dark spots or fine flecks (or none) on tan or grey in the Desert Night Lizard. B: Bigger and flatter, built for narrow granite cracks in the Arizona Night Lizard; smaller and rounder; mostly under dead yucca, Joshua tree and agave in the Desert Night Lizard.

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Arizona Night Lizard

Xantusia arizonae

Desert Night Lizard

Xantusia vigilis
Arizona Night Lizard vs. Desert Night 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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