Southeastern Mud Turtle

Scientific Name: Kinosternon subrubrum
Size: 3-5 inches (7-10 cm) in length
Status: Endangered Species

Slow moving or standing waters with soft mud bottoms and an abundant amount of aquatic vegetation.

Small aquatic species. The upper shell is brown, olive, or black. The underside of the turtle is yellow or yellow-brown. The skin is brown with a slight olive green appearance. It's head is brown and can have varying degrees of yellow markings along the sides. It's shell is smooth and round.

Adult Coloration:
  • The carapace color is yellow-brown, olive-brown to black and unpatterned.
  • The plastron is yellow to yellowish brown.
  • The skin of the neck, legs, and tail is olive to olive brown.
  • The head is olive-brown on top and becomes yellow or mottled with yellow along the sides, jaw and chin.
Adult Characteristics:
  • Small aquatic species.
  • Profile View – The carapace is low and lacks keels.
  • Above View – The carapace is oblong with smooth margins.
  • The posterior margin of the carapace is strongly serrated.
  • The plastron is large and covers the underside, and had two well-developed transverse hinges; one on each side of the abdominal scutes.
  • The legs are short and well-developed.
  • The feet are webbed between the toes.
Juvenile Characteristics:
  • Similar to adults

May be Confused With:
  • Hulse, C. and McCoy C. J. and Ellen Censky ,1998. Amphibians and Reptiles of Pennsylvania and the Northeast. 194-196pp.
  • Ernst, Carl H. and Lovich, Jeffrey E., and Barbour, Roger W. ,1994. Turtles of the United States and Canada. 167-176pp.
  • Bob Hamilton
  • Billy Brown
  • Brandon Ruhe
  • Stephen Staedtler

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