Snake FinderField Guide · Worldwide

Know the dangerous ones

Venomous snakes in Valencia County, New Mexico

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

Field entries

  1. Prairie Rattlesnake
    Crotalus viridis
    Prairie Rattlesnake

    Crotalus viridis

    Venomous

    How to identify

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

  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.

  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.

  4. Eastern Massasauga
    Sistrurus catenatus
    Eastern Massasauga

    Sistrurus catenatus

    Venomous

    How to identify

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

    Rarely seenFull profile →
  5. Eastern Black-tailed Rattlesnake
    Crotalus ornatus
    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 →
  6. Western Black-tailed Rattlesnake
    Crotalus molossus
    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 →

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