Texas
Snakes in Hartley County
15 species have been documented here, 3 of them venomous.
Venomous snakes in Hartley County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Hartley County
Western Ribbon Snake
Thamnophis proximus
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Glossy Snake
Arizona elegans
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Lined Snake
Tropidoclonion lineatum
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Plains Hognose Snake
Heterodon nasicus
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Long-nosed Snake
Rhinocheilus lecontei
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.