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Map Turtle basic information

A moderately sized turtle, female Map Turtles are significantly larger than males. The thin lines on their skin and sides are reminiscent of a road map, which is where the turtle derives its name. The majority of Map Turtles have a raised ridge, or keel, which runs across the middle of their upper shell. This keel has, on many species of Map Turtle, protruding spines or knobs that have led to the turtle being called the "Sawback Turtle" in some regions. The carapace (upper shell) of many Map Turtles has a serrated edge at the rear caused by the backward projection of the marginal scutes. Many, but not all, species of Map Turtle have a large and powerful head and jaws that, as mentioned above, enable them to crush the shells of animals like snails or mollusks. All Map Turtles have a network of thin lines on their bodies, usually on the scutes and the head. The pattern varies greatly from species to species, and sometimes even within species. The protrusions on the keel can also help the observer distinguish between species.

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Map_Turtle".
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