R. M. Bailey, 1959
The sharphead darter (Etheostoma acuticeps) is a species of darter endemic to the eastern United States, where it is only known to occur in the Holston and Nolichucky River systems. It inhabits small to medium-sized rivers, being found in rocky riffles in deep, fast-flowing waters. This species can reach a length of 8.4 cm (3.3 in), though most only reach about 5.5 cm (2.2 in).
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