Snakes in Denton County

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

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

• 
  Broad-banded Copperhead

  Agkistrodon laticinctus

  ▲ Venomous

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

• 
  Eastern Copperhead

  Agkistrodon contortrix

  ▲ Venomous

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

• 
  Timber Rattlesnake

  Crotalus horridus

  ▲ Venomous

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

• 
  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.

• 
  Pygmy Rattlesnake

  Sistrurus miliarius

  ▲ Venomous

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

Every snake recorded in Denton County

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

Rough Earthsnake

Virginia striatula

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Broad-banded Copperhead

Agkistrodon laticinctus

▲ Venomous

Banded Watersnake

Nerodia fasciata

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

North American Racer

Coluber constrictor

Harmless

Common Coachwhip

Masticophis flagellum

Harmless

No photo

Mexican Whip Snake

Masticophis lineatus

Harmless

Tantilla selmae

Harmless

Ground Snake

Sonora semiannulata

Harmless

Texas Blind Snake

Rena dulcis

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Gopher Snake

Pituophis catenifer

Harmless

Speckled Kingsnake

Lampropeltis holbrooki

Harmless

Lined Snake

Tropidoclonion lineatum

Harmless

Flat-headed Snake

Tantilla gracilis

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Prairie Kingsnake

Lampropeltis calligaster

Harmless

Graham's Crawfish Snake

Regina grahamii

Harmless

Plains Black-headed Snake

Tantilla nigriceps

Harmless

Sinaloan Nightsnake

Hypsiglena torquata

Harmless

Common Garter Snake

Thamnophis sirtalis

Harmless

Timber Rattlesnake

Crotalus horridus

▲ Venomous

Great Plains Ground Snake

Sonora episcopa

Harmless

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Mexican Black-headed Snake

Tantilla atriceps

Harmless

Common Watersnake

Nerodia sipedon

Harmless

Eastern Milksnake

Lampropeltis triangulum

Harmless

Pygmy Rattlesnake

Sistrurus miliarius

▲ Venomous

Mudsnake

Farancia abacura

Harmless

Chihuahuan Nightsnake

Hypsiglena jani

Harmless

Pine Snake

Pituophis melanoleucus

Harmless

Brazos River Watersnake

Nerodia harteri

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Nearby counties