The false map turtle is Graptemys pseudogeographica . Another map turtle is Graptemys geographica which grows 4 to 6 inches long. Map turtles are named for their intricate shells. Sawbacks have knobby projections on their carapace. Map turtles and sawbacks are shy and live in large rivers and lakes.
Females grow up to a foot long with males half as big.
Their jaws are strong to crack open snails and mussels but they eat soft bodied insects and other animals too. There are five species of mud turtles in North America. One is Kinosternon subrubrum . They can pull their head and limbs into their shell. Mud turtles eat insects and small animals.