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(Nerodia sipedon)

Picture of a watersnake

Area where watersnake is found in South Dakota


  • Body color is dark brown to gray
  • Dark upper bands on front part of body
  • Alternating dark blotches or crossbands on the rear part of upper body
  • Half-moon or speckled markings on the belly
  • Juveniles have a lighter body color than adults
  • Strongly keeled scales
  • Nonvenomous
  • Diet: fish, frogs, toads, small mammals, and insects
  • Habitat: wetland areas
  • Distribution: Bon Homme County - Springfield