Snakes in Marengo County

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ 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.

• 
  Timber Rattlesnake

  Crotalus horridus

  ▲ Venomous

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

Every snake recorded in Marengo County

Gray Ratsnake

Pantherophis spiloides

Harmless

Common Watersnake

Nerodia sipedon

Harmless

North American Racer

Coluber constrictor

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Common Wormsnake

Carphophis amoenus

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Timber Rattlesnake

Crotalus horridus

▲ Venomous

Black Kingsnake

Lampropeltis nigra

Harmless

Mudsnake

Farancia abacura

Harmless

Common Garter Snake

Thamnophis sirtalis

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Banded Watersnake

Nerodia fasciata

Harmless

Red-bellied Snake

Storeria occipitomaculata

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Common Ribbon Snake

Thamnophis saurita

Harmless

Queensnake

Regina septemvittata

Harmless

Scarletsnake

Cemophora coccinea

Harmless

Glossy Swampsnake

Liodytes rigida

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Nearby counties