Venomous snakes in Concho County, Texas

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

   ▲ 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 Massasauga

   Sistrurus catenatus

   ▲ Venomous

   How to identify

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

   Rarely seenFull profile →

4. 

   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 →

5. 

   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 →

6. 

   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.

   Rarely seenFull profile →

7. 

   Pygmy Rattlesnake

   Sistrurus miliarius

   ▲ Venomous

   How to identify

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

   Rarely seenFull profile →

8. 

   Broad-banded Copperhead

   Agkistrodon laticinctus

   ▲ Venomous

   How to identify

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

   Rarely seenFull profile →

9. 

   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 →