The Sawfin Shiner is an undescribed species found in the Tennessee River Drainage in Alabama, Tennessee, and Virginia, and middle Cumberland River Drainage in Tennessee and Kentucky. They live in sandy or rock pools and backwaters of creeks to medium rivers. As the common name suggests, breeding male Sawfin Shiners have large breeding tubercles, horny projections used in spawning that resemble the teeth of a saw, on the first ray of their pectoral fins.