Snakes in Callahan County

• 
  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.

• 
  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.

• 
  Western Massasauga

  Sistrurus tergeminus

  ▲ Venomous

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

• 
  Prairie Rattlesnake

  Crotalus viridis

  ▲ Venomous

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

Every snake recorded in Callahan County

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Western Ratsnake

Pantherophis obsoletus

Harmless

Broad-banded Copperhead

Agkistrodon laticinctus

▲ Venomous

Common Coachwhip

Masticophis flagellum

Harmless

No photo

Mexican Whip Snake

Masticophis lineatus

Harmless

North American Racer

Coluber constrictor

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Gopher Snake

Pituophis catenifer

Harmless

Ground Snake

Sonora semiannulata

Harmless

Checkered Garter Snake

Thamnophis marcianus

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Prairie Kingsnake

Lampropeltis calligaster

Harmless

Texas Blind Snake

Rena dulcis

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

Glossy Snake

Arizona elegans

Harmless

Western Massasauga

Sistrurus tergeminus

▲ Venomous

Plains Hognose Snake

Heterodon nasicus

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Rough Earthsnake

Virginia striatula

Harmless

Common Ribbon Snake

Thamnophis saurita

Harmless

Red Cornsnake

Pantherophis guttatus

Harmless

Prairie Rattlesnake

Crotalus viridis

▲ Venomous

Flat-headed Snake

Tantilla gracilis

Harmless

Texas Patch-nosed Snake

Salvadora lineata

Harmless

Western Milksnake

Lampropeltis gentilis

Harmless

Speckled Racer

Drymobius margaritiferus

Harmless

Great Plains Ground Snake

Sonora episcopa

Harmless

Pine Snake

Pituophis melanoleucus

Harmless

Tantilla selmae

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Nearby counties