Cantil - These are heavy bodied snakes, and share the same general body structure with cottonmouths.
Copperhead - Agkistrodon contortrix is a species of venomous snake found in North America, a member of the Crotalinae subfamily.
Water Moccasin - The diet consists mainly of fish and frogs, but is otherwise highly varied and, uniquely, has even been reported to include carrion.
Agkistrodon taylori - Adults usually attain a length of 64-90 cm, with some growing to 96 cm.