Mississippi
Snakes in Harrison County
39 species have been documented here, 3 of them venomous.
Venomous snakes in Harrison 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.
Pygmy RattlesnakeSistrurus miliariusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Eastern Diamondback RattlesnakeCrotalus adamanteusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Harrison County
Banded Watersnake
Nerodia fasciata
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
North American Racer
Coluber constrictor
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Common Ribbon Snake
Thamnophis saurita
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Mississippi Green Watersnake
Nerodia cyclopion
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Pygmy Rattlesnake
Sistrurus miliarius
Venomous
Red-bellied Snake
Storeria occipitomaculata
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Glossy Swampsnake
Liodytes rigida
Harmless
Scarletsnake
Cemophora coccinea
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Pine Woods Littersnake
Rhadinaea flavilata
Harmless
Southeastern Crowned Snake
Tantilla coronata
Harmless
Tantilla selmae
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Mudsnake
Farancia abacura
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Graham's Crawfish Snake
Regina grahamii
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Southern Hognose Snake
Heterodon simus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Eastern Ratsnake
Pantherophis alleghaniensis
Harmless
Eastern Diamondback Rattlesnake
Crotalus adamanteus
Venomous
Black Kingsnake
Lampropeltis nigra
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.