Side-blotched lizard

Description:

The common side-blotched lizard is a species of small iguanid lizard. Males can grow up to 60 mm (2.4 inches) from snout to vent, while females are typically a little smaller. The degree of pigmentation varies with sex and population. Some males can have blue flecks spread over their backs and tails, and their sides may be yellow or orange, while others may be unpatterned. Females may have stripes along their backs/sides, or again may be relatively drab. Both sexes have a prominent blotch on their sides, just behind their front limbs.[10] Coloration is especially important in common side-blotched lizards, as it is closely related to the mating behavior of both males and females.

Notes:

Near Colorado River, 2400' near Kaibab Suspension Bridge, Grand Canyon, AZ