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Graphic Spiny Lizard vs. Texas Spiny Lizard

Both are grey tree lizards in the mesquite and ebony of the Lower Rio Grande Valley. A: Much smaller on the sides than on the back in the Graphic Spiny Lizard; big, pointed, keeled scales, the same size on the sides as on the back in the Texas Spiny Lizard. B: Small: 4 to 6 in in the Graphic Spiny Lizard; big: 7 to 11 in in the Texas Spiny Lizard. Male Graphic Spiny Lizards have pale blue belly patches; male Texas Spiny Lizards blue patches edged black.

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Graphic Spiny Lizard

Sceloporus grammicus

Texas Spiny Lizard

Sceloporus olivaceus
Graphic Spiny Lizard vs. Texas 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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