Agkistrodon piscivorus is a species of pit viper in the subfamily Crotalinae of the family Viperidae. It is the world's only semiaquatic viper, and is native to the southeastern United States. It is the only venomous species of North America's water snakes, and one of twenty one venomous snakes in the United States.
Eastern Cotton Mouth Snakes
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Eastern cottonmouth (Agkistrodon piscivorus piscivorus) Beidler Forest Audubon Center & Sanctuary Harleyville, SC
Sasha Azevedo / Flickr
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Eastern cottonmouth (Agkistrodon piscivorus piscivorus) Beidler Forest Audubon Center & Sanctuary Harleyville, SC
Sasha Azevedo / Flickr
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An eastern cottonmouth snake, agkistrodon piscivorus
Geoff Gallice, Gainesville, FL; via Wikimedia Commons
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An eastern cottonmouth snake, agkistrodon piscivorus
Geoff Gallice, Gainesville, FL; via Wikimedia Commons
