About Etheostoma nigripinne Braasch & Mayden, 1985
The blackfin darter, with the scientific name Etheostoma nigripinne, is a species of freshwater ray-finned fish. It is classified as a darter in the subfamily Etheostomatinae, which belongs to the family Percidae. This family also includes perches, ruffes, and pikeperches. The blackfin darter is endemic to the eastern United States, where it is found in the Tennessee River drainage, ranging from the Paint Rock River to the Duck River system. It lives in small rivers and creeks, specifically occupying small pools and the riffles adjacent to these pools. This species can grow to a total length of 8.8 centimetres, which equals 3.5 inches.
