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Lizard, Greater Earless (Cophosaurus texanus)
greater earless lizard

DESCRIPTION: L=6" (15cm) including tail. Overall tan to brown with whitish to yellowish spots. Head is wedge-shaped. Scales are fine and smooth. External ear openings absent, two dark bars on side of body are behind midbody, and tail has black and white bars only on lower surface (compare to Zebratail Lizard). Note: Lesser Earless Lizard (Holbrookia maculata) is also found in Tucson area, and its external ear opening are absent (like Greater Earless), its two dark bars are midbody (like Zebratail), and it does not have black-and-white bars on tail (unlike both Greater Earless and Zebratail).
NATURAL HISTORY: Carnivorous, eating mostly arthropods. Diurnal. Lays eggs. May curl tail up, revealing black and white bands before and during running, but less likely than Zebratail Lizards to do this.