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
Florida banded water snake the lower sides is sometimes darker than the crossbands, producing an appearance of alternating blotches on the back and sides. The Florida water snake differs from the southern water snake ("N. f. fasciata") chiefly in the shape of the markings on the ventrals. In "N. f.pictiventris", these markings consist of transverse blotches, many of them enclosing an oval white spot, whereas in "N. f. fasciata", they are solid, squarish spots. Adults average in total length. They are ovoviviparous. Mating occurs from March to May, and the young are born from May to August, in broods of 25-57. The newborns are