Snakes in Galveston County

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

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

• 
  Western Diamond-backed Rattlesnake

  Crotalus atrox

  ▲ Venomous

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

• 
  Texas Coralsnake

  Micrurus tener

  ▲ Venomous

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

• 
  Eastern Copperhead

  Agkistrodon contortrix

  ▲ Venomous

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

Every snake recorded in Galveston County

Western Ribbon Snake

Thamnophis proximus

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Saltmarsh Snake

Nerodia clarkii

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Mississippi Green Watersnake

Nerodia cyclopion

Harmless

Common Coachwhip

Masticophis flagellum

Harmless

No photo

Mexican Whip Snake

Masticophis lineatus

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Rough Earthsnake

Virginia striatula

Harmless

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Diamondback Watersnake

Nerodia rhombifer

Harmless

Speckled Kingsnake

Lampropeltis holbrooki

Harmless

Banded Watersnake

Nerodia fasciata

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Texas Coralsnake

Micrurus tener

▲ Venomous

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

North American Racer

Coluber constrictor

Harmless

Graham's Crawfish Snake

Regina grahamii

Harmless

Brahminy Blindsnake

Indotyphlops braminus

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Prairie Kingsnake

Lampropeltis calligaster

Harmless

Common Watersnake

Nerodia sipedon

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Plains Hognose Snake

Heterodon nasicus

Harmless

Northern Cat-eyed Snake

Leptodeira septentrionalis

Harmless

Glossy Swampsnake

Liodytes rigida

Harmless

Paraiba Cat-eyed Snake

Leptodeira tarairiu

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Nearby counties