Snake FinderField Guide · Worldwide

Know the dangerous ones

Venomous snakes in Uvalde County, Texas

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

Field entries

  1. 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.

    Occasionally seenFull profile →
  2. 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.

    Rarely seenFull profile →
  3. Eastern Copperhead
    Agkistrodon contortrix
    Eastern Copperhead

    Agkistrodon contortrix

    Venomous

    How to identify

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

    Rarely seenFull profile →
  4. Rock Rattlesnake
    Crotalus lepidus
    Rock Rattlesnake

    Crotalus lepidus

    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 →
  5. Eastern Coralsnake
    Micrurus fulvius
    Eastern Coralsnake

    Micrurus fulvius

    Venomous

    How to identify

    Rings of red, yellow, and black where red touches yellow; small rounded head and round pupils.

    Rarely seenFull profile →

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