Texas
Snakes in Brown County
30 species have been documented here, 3 of them venomous.
Venomous snakes in Brown County
Full guide & what to do if bitten →
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Broad-banded CopperheadAgkistrodon laticinctusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Brown County
Ground Snake
Sonora semiannulata
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Broad-banded Copperhead
Agkistrodon laticinctus
Venomous
Ring-necked Snake
Diadophis punctatus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Great Plains Ground Snake
Sonora episcopa
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Taylor’s Ground Snake
Sonora taylori
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
Tantilla selmae
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
North American Racer
Coluber constrictor
Harmless
Texas Coralsnake
Micrurus tener
Venomous
Striped Whipsnake
Masticophis taeniatus
Harmless
Speckled Racer
Drymobius margaritiferus
Harmless
Desert Kingsnake
Lampropeltis splendida
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.