In the US, this species is only found in deep south Texas, but its range extends along the east and west coasts of Mexico, through Central America, and into the coastal region of northwestern South America.
Lives in riparian areas of mesquite woodlands or thorn scrub. They will climb into the lower branches of trees to hunt over the edges of ponds or streams. Can be found from sea level up to elevations of 6,200 feet.
A large non-venomous mostly bluish-black snake with smooth, glossy scales. The ventral surface and sides of face and neck are light tan to orange with lateral black bands. Adults can be 6-8 feet long, 2-3 inches wide, and weigh 5-6 pounds. They have 2 vertical and 1 diagonal black line under each eye. Undivided anal plate.
Learn more with Schechter Natural History's Guide to Reptiles and Amphibians