Southern black racer (scientific name: "Coluber constrictor"), the racer is more likely to suffocate or crush its victim into the ground, rather than coiling around it in typical constrictor fashion. Man remains the greatest enemy of black racers. Many are killed on highways and others are intentionally killed out of fear. The white chin causes some people to kill this snake, believing that it is a cottonmouth – a venomous snake more commonly called a water moccasin. The venomous snake has a white lining inside of its mouth. Racers are nonvenomous and do not breed with cottonmouths. Natural enemies include such birds of
Brown water snake Brown water snake The brown water snake ("Nerodia taxispilota") is a large species of nonvenomous natricine snake endemic to the southeastern United States. "Lycodonomorphus rufulus" is sometimes also called the brown water snake, but "L. rufulus" is found in South Africa. Brown water snake, water-pilot, aspic, false moccasin, great water snake, pied water snake, southern water snake, water rattle. "Nerodia taxispilota" is found in lower coastal regions from southeastern Virginia, through North Carolina, South Carolina, and Georgia, to northern and western Florida (Gulf Coast), then west through Missouri, Alabama and Mississippi, to Louisiana, normally from sea level to 500 ft.