Snake FinderField Guide · Worldwide

Know the dangerous ones

Venomous snakes in Cotton County, Oklahoma

3 venomous snake species have verified records in Cotton County. Learn to recognize each one, and know what to do if you are bitten.

Field entries

  1. Northern Cottonmouth
    Agkistrodon piscivorus
    Northern Cottonmouth

    Agkistrodon piscivorus

    Venomous

    How to identify

    Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.

    Occasionally seenFull profile →
  2. Western Diamond-backed Rattlesnake
    Crotalus atrox
    Venomous

    How to identify

    Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

    Rarely seenFull profile →
  3. Western Massasauga
    Sistrurus tergeminus
    Western Massasauga

    Sistrurus tergeminus

    Venomous

    How to identify

    Stout, dark-blotched body, nine large scales on the crown, and a small rattle.

    Rarely seenFull profile →

Looking for all snakes here, not just the venomous ones? See all snakes in Cotton County.