The sailfin shiner (Pteronotropis hypselopterus) is a species of cyprinid fish endemic to the southeastern United States.

[3] The fish can be found in Gulf Coast drainages from Alabama to Florida, including in the Mobile Basin.

[4] The fish inhabit sand-bottomed and clay-bottomed pools or run waters of creeks and small rivers.

As a non feeding larva, glue is secreted from the cement glands and the posterior swim bladder forms.

After initial feeding, median and pelvic fins develop, and the anterior swim bladder inflates.