The flat-tailed horned lizard (Phrynosoma mcalli) is a desert lizard found in parts of southwestern Arizona ... Marks are lost when the lizard sheds, but this happens infrequently and probably caused ...

HABITAT: The flat-tailed horned lizard is most often found in desert scrub on sandy flats and valleys with little or no windblown sand, as well as on salt flats and gravelly soils. RANGE: The ...