The Streamline Chub is found in several disjunct populations in the Ohio River Drainage from Alabama to New York, including the Tennessee and Cumberland river drainages. They are found in riffles and runs of large streams and rivers over rock and gravel bottoms. As the common name suggests, Streamline Chubs have a “streamline” body shape that is long and slender to help maintain their position in swift water. They are disappearing throughout their range due to reservoir construction and siltation.