The Florida cottonmouth is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae. The species is endemic to the United States, where it occurs in southern Georgi
Mocassin d'eau
Top row: northern cottonmouth; bottom row: Florida cottonmouth; although the facial patterns are variable in both species, the overall lighter, cleaner face markings are characteristic of the Florida cottonmouth and the two dark vertical lines on the snout are diagnostic of the species)
Geographic distribution of the two species of cottonmouth, A. piscivorus and A. conanti; black dots represent the type localities
A. conanti, Big Cypress National Preserve, Florida
Nerodia is a genus of nonvenomous colubrid snakes commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species, all native to North America. Five of the species
Florida cottonmouth
…extensive necrosis compared to many snake venoms, and can sometimes be lethal with a 17% mortality rate. It is often confused with harmless watersnakes (Nerodia) and other semi-aquatic species with which it shares its habitat. It is a moderately large, thick bodied snake, adults averaging 30 to 48 inches (76-122…
Gulf saltmarsh watersnake (Nerodia clarkii clarkii), Chambers County, Texas, 20 April 2019
Concho Watersnake (Nerodia paucimaculata) from central Texas
Nerodia rhombifer, diamondback water snake, giving birth