Cottonmouth viper (Agkistrodon piscivorus) – 7 mph (11 kph) Commonly known as the water moccasin, the cottonmouth viper is native to the Southeastern United States, typically in or near water.

The subspecies present in the state is the Eastern cottonmouth (Agkistrodon piscivorus piscivorus). As a member of the viper family, the cottonmouth’s venom toxicity is ranked fourth among North ...

Mangrove Viper: A skilled climber and swimmer, this snake lives in mangrove forests and can traverse both land and water with ease. Thanks For Reading!