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Black-tailed Brush Lizard vs. Long-tailed Brush Lizard

Both are slim grey brush lizards on desert shrubs; their records overlap in the Colorado Desert. A: Sooty black toward the tip, about 1.5 times the body in the Black-tailed Brush Lizard; grey, very long: more than twice the head and body in the Long-tailed Brush Lizard. B: Dark blotches or wavy crossbars in the Black-tailed Brush Lizard; plain grey or faintly barred in the Long-tailed Brush Lizard.

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Black-tailed Brush Lizard

Urosaurus nigricauda

Long-tailed Brush Lizard

Urosaurus graciosus
Black-tailed Brush Lizard vs. Long-tailed Brush 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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