Redline Darter(Male)-Duck River Drainage, Tennessee

''Etheostoma rufilineatum'', the redline darter, is a species of darter endemic to the southeastern United States.

This fish, like most other darter species, tends to inhabit clear, rocky riffles of streams, creeks, and small rivers. Both currently and historically, this fish is known from only the Tennessee and Cumberland River drainages in Tennessee, Virginia, Kentucky, Alabama, North Carolina, Georgia, and Mississippi. The average length for this fish is 6.9 cm, with a maximum recorded.. more