The copperhead, cottonmouth, glossy snake, Trans-Pecos rat snake and western worm snake are common snakes in Texas. The copperhead and cottonmouth snakes are extremely venomous, while the glossy snake, Trans-Pecos rat snake and western worm snake are non-venomous.
The scarlet snake is another common snake in Texas. This snake has a grey or white background color with 17 to 24 deep red blotches bordered in black along its spine. These non-venomous snakes reach up to 26 inches in length at maturity. They prefer to feed on reptile eggs, but occasionally eat small lizards or other snakes. The Texas Parks and Wildlife Department lists scarlet snakes as threatened, and it protects the species throughout the state.