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
Burmese keelback water snake Burmese keelback water snake The Burmese keelback water snake ("Xenochrophis bellulus") is a species of water snake described by Stoliczka in 1871. It is known only from three examples collected in Myanmar, including a recent specimen from 2010. The Burmese keelback water snake is relatively small in size, and grow to a maximal length of between 4 and 6 centimetres. The body is elongated with a moderately long tail, and is covered by keeled scales on the dorsal section. The species is endemic to Myanmar, and is believed to have an extensive habitat extending across the interior of the country.