Yellow Mud Turtle
This is a small, olive to dark-colored, semiaquatic turtle with a restricted range. It is considered an endangered species in Missouri. The upper shell is somewhat flattened and is olive brown, dark brown, or black, sometimes with dark brown edges of the scutes. The limbs and upperparts of the head and neck are olive; there is yellow on the chin and neck and along the edge of the upper shell. The lower shell is yellow and brown. The tail of the male ends in a clawlike, horny tip. Mud turtles give off an offensive, musky odor when captured.
Similar species: The closely related Mississippi mud turtle (K. subrubrum hippocrepis) is found only in the Bootheel.