Faxonius stygocaneyi

Faxonius stygocaneyi, the Caney Mountain cave crayfish, is a small, freshwater crayfish endemic to Missouri in the United States. It is a cave-dwelling species known from only one cave, Mud Cave in Ozark County, Missouri. This cave is Protected as part of the Caney Mountain Conservation Area, which covers 7899 acres of public land administered by the Missouri Department of Conservation.