Texas Lyre Snake

The Texas Lyre Snake (Trimorphodon biscutatus vilkinsonii) is a subspecies of midly venomous rear-fanged colubrid snake found in the United States in the Big Bend region of Texas and southern New Mexico, to northeastern Chihuahua, Mexico. The epithet vilkinsonii is in honor of amateur American naturalist Edward Wilkinson, who collected the first specimen near the city of Chihuahua. Some sources consider it to be its own species, as Trimorphodon vilkinsonii.