Louisiana
Snakes in Terrebonne County
17 species have been documented here, 2 of them venomous.
Venomous snakes in Terrebonne County
Full guide & what to do if bitten →
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Terrebonne County
Banded Watersnake
Nerodia fasciata
Harmless
North American Racer
Coluber constrictor
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Western Ribbon Snake
Thamnophis proximus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Mississippi Green Watersnake
Nerodia cyclopion
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Mudsnake
Farancia abacura
Harmless
Glossy Swampsnake
Liodytes rigida
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.