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Twin-spotted Spiny Lizard vs. Southwestern Fence Lizard

They meet in the grassland and desert valleys of southeastern Arizona; young Twin-spotted are fence-lizard size. A: Big: to 5.6 in (14 cm) head and body in the Twin-spotted Spiny Lizard; small: to 3 in (7.6 cm) head and body in the Southwestern Fence Lizard. B: Two rows of dark blotches, no pale stripes in the Twin-spotted Spiny Lizard; wavy dark crossbars between two pale stripes in the Southwestern Fence Lizard.

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Twin-spotted Spiny Lizard

Sceloporus bimaculosus

Southwestern Fence Lizard

Sceloporus cowlesi
Twin-spotted Spiny Lizard vs. Southwestern Fence 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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