Description: Ribbon snakes are slim, striped snakes with long tails relative to their body length. They have three white, yellow, or greenish stripes that run along the length of their body on a background color of black or dark brown. This striped pattern makes them difficult to see in the grassy habitats they prefer. The head is wider than the neck and their relatively large eyes are bordered by a light bar in front. Their belly is white, yellow, or green without blotches. The scales above their mouth are bright white or yellow, without dark borders (as in garter snakes). Their scales are keeled (with a raised ridge along their length). Females are slightly larger than males and total body length ranges from 46 to 86.2 cm. Young eastern ribbon snakes are born alive and are from 16 to 24 cm long.
Habitat: Ribbon snakes are semi-aquatic and are seldom found far from water. This species can be seen basking or resting along ponds, streams, swamps, and wet woodlands or grasslands. Shallow water is exploited both as hunting grounds and an escape route from predators. Overwintering sites are typically underground at higher elevations, such as under rock piles.
Range: Ribbon snakes are found throughout much of eastern North America east of the Mississippi River. They occur from southern Maine, across southern Ontario, throughout Michigan, south to eastern Louisiana, throughout the Gulf states, including Florida, and throughout the eastern seaboard. They appear to be largely absent from southern Ohio, southeastern Illinois, central Pennsylvania, West Virginia, Kentucky, Tennessee, and northern Alabama and Georgia. There are isolated populations in parts of Kentucky and Wisconsin.
Diet: In order to hunt, ribbon snakes use a few of their senses including auditory and visual perception. Ribbon snakes do not eat warm-blooded prey, just as garter snakes, also of the genus Thamnophis, do not. Using their auditory and visual traits, they are able to prey upon newts, salamanders, frogs, toads, tadpoles, small fish, spiders, and earthworms.
Reproduction: Beginning in the spring, after hibernation, ribbon snakes begin to look for another snake with which to mate. Ribbon snakes are ovoviviparous snakes, meaning they give birth to live young. The live young tend to be born in the summer, in litters of 4 to 27 snakes. Ribbon snakes tend to mature after two to three years, which is when they will be able to start breeding. Ribbon snakes tend to breed once or twice each year after they mature.
Status: Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
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Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. However, it is not a legal authority for statutory or regulatory purposes. While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in provisions of treaties to which the United States is a party, wildlife statutes, regulations, and any applicable notices that have been published in the Federal Register. For further information on U.S. legal requirements with respect to protected taxa, please contact the U.S. Fish and Wildlife Service.