The neck is very long, but is often retracted into the shell. Most of their diet is comprised of insects, snails, crustaceans and small fish. Most Alligator Snapping Turtles are found in the eastern third of Oklahoma in streams, rivers and reservoirs, especially where there is tree cover over the water. Common Map Turtle Graptemys geographica Credit: The Ornate Box Turtle has the ability to pull its head, neck and legs completely into its shell when threatened or disturbed. Its diet is comprised primarily of snails, aquatic insects, crustaceans and small mussels, but it also feeds upon aquatic plants. Because of its limited geographic range and rarity in Oklahoma, a closed season has been established for this species that prohibits the trapping, possession or killing of this turtle. This species is found primarily in streams, marshes, sloughs and ponds with abundant aquatic vegetation. Like all mud and musk turtles, it can emit a foul odor when threatened. They feed on aquatic plants and small aquatic insects and crustaceans. The family Chelydridae is comprised of two species of large, carnivorous turtles — the Common Snapping Turtle Chelydra serpentina and the Alligator Snapping Turtle Macrochelys temminckii. Collins, CNAH This is a relatively large turtle with the adults reaching lengths of 8 to 18 inches and weights of 10 to 35 pounds though a few males have been recorded at over 50lbs. They frequently travel across land and readily colonize ponds and other isolated bodies of water. Box turtles have high, dome-shaped shells that are usually a medium brown color. Its skin color is gray to dark gray and there are two prominent, yellowish-colored lines that run across the face, and along each side of the head and neck.