Graphic Spiny Lizard vs. Ornate Tree Lizard

Both are small grey lizards of tree trunks; they meet in northern Mexico. A: No fold of skin across the throat in the Graphic Spiny Lizard; a fold of skin across the throat in the Ornate Tree Lizard. B: Keeled, spiny scales all over the back in the Graphic Spiny Lizard; tiny granular scales with a band of bigger scales down the middle in the Ornate Tree Lizard. The Graphic Spiny Lizard has a dark bar on the side of the neck; the Ornate Tree Lizard often a blue or yellow throat.

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