Mississippi Green Watersnake
This semiaquatic snake was once somewhat common in southeastern Missouri but is now quite rare. A heavy-bodied snake, it is greenish-brown with numerous small, obscure brown markings. The belly is dark gray with numerous, yellow half-moon-shaped markings. Watersnakes, although not venomous, do bite viciously to defend themselves and also secret a strong-smelling musk from glands at the base of the tail.