Range Extent CommentsThis species is known from the Ozark Plateau in southern Missouri and northern Arkansas (USA). Specifically, those streams draining the Salem Plateau region of the Ozark Plateau from the south: White River and its tributaries North Fork, James, Black, and Buffalo rivers, Current River and it's tributaries Jacks Fork, Little Black River, and Logan Creek, and the St. Francis River. This species is only found in the upper reaches within the Salem Plateau and does not occur further downstream (Watters 2018).
A single dead specimen from the Meramee River, Missouri, may be this species, possibly introduced through recent stream capture or may be a mislabeled specimen (Watters 2018).