About Sceloporus olivaceus Smith, 1934
Adults of this species measure 7.5 to 11 inches (19 to 28 cm) in total length. They are typically grey, with black, white, or red-brown blotching running down their back. Their body patterns vary widely depending on locality, and their color and pattern work as effective camouflage against tree bark in their native habitat. Their underside is usually a uniform light grey, but males typically have blue patches on each side of the belly. Their scales have a clearly spiny texture. They have long toes and sharp claws that are adapted for climbing. This species, the Texas spiny lizard, breeds throughout the summer each year. If enough nutrients are available, females can lay up to four clutches of eggs per year. Each clutch holds roughly 20 eggs, and on average, male hatchlings end up larger than female hatchlings after birth.
