The Cottonmouth - a highly venomous species.
Cotton mouth
cottonmouth
The Cottonmouth - a highly-venomous species.
Cottonmouth. Venomous bite.
The 'Cottonmouth' - a highly venomous snake species !
Assuming you're talking about the snake's mouth - the species that immediately comes to mind is the cotton-mouth or water moccasin.
Members of the 'Cottonmouth' species - which is where they got their name from !
A big one. With a big mouth. My wife says maybe bigbird. LOL
Cottonmouth (white mouth). The answer's in the question.
Turtles, Aligators, Snakes, and different types of fish, White owls
If your in the southeastern united states it is most likely a cotton mouth which is poisonous. they also smell like cucumbers.
Brown tree snakes and Brahminy blind snakes