Small turtle with a high domed and keeled carapace. The edge of the carapace flares outward. Plastron is hinged and folds shut to protect the head and limbs. Front and rear legs are stout with toes webbed only at the base. Color varies widely with each individual. Carapace is generally dark brown, olive or black with yellow or orange spots or pattern. Males typically have a red iris and concave plastron. Females have brown iris and flat plastron.