nianguae C. H. Gilbert & Meek, 1887 (Niangua darter) Etheostoma nigripinne Braasch & Mayden, 1985 (blackfin darter) Etheostoma nigrum Rafinesque, 1820 (johnny darter) Etheostoma nuchale W. M. Howell & R. D. Caldwell, 1965 (watercress darter) Etheostoma obama Mayden & Layman, 2012 (spangled darter) Etheostoma obeyense Kirsch, 1892 (barcheek darter) Etheostoma occidentale Powers & Mayden, 2007 (West Rim darter) Etheostoma okaloosae (Fowler, 1941) (Okaloosa darter) Etheostoma olivaceum Braasch & Page, 1979 (sooty darter) Etheostoma olmstedi D. H. Storer, 1842 (tessellated darter) Etheostoma oophylax Ceas & Page, 1992 (guardian darter) Etheostoma orientale Powers & Mayden, 2007 (East Rim darter) Etheostoma osburni (C. L. Hubbs & Trautman, 1932) (candy darter) Etheostoma pallididorsum Distler & Metcalf, 1962 (paleback darter) Etheostoma parvipinne C. H. Gilbert & Swain, 1887 (goldstripe darter) Etheostoma percnurum R. E. Jenkins, 1994 (duskytail darter) Etheostoma perlongum C. L. Hubbs & Raney, 1946) (Waccamaw darter) Etheostoma phytophilum Bart & M. S. Taylor, 1999 (rush darter) Etheostoma planasaxatile Powers & Mayden, 2007 (duck darter) Etheostoma podostemone D. S. Jordan & O. P. Jenkins, 1889 (riverweed darter) Etheostoma pottsii (Girard, 1859) (Chihuahua darter) Etheostoma proeliare (O. P. Hay, 1881) (cypress darter) Etheostoma pseudovulatum Page & Ceas, 1992 (egg-mimic darter) Etheostoma punctulatum (Agassiz, 1854) (stippled darter) Etheostoma pyrrhogaster R. M. Bailey & Etnier, 1988 (firebelly darter) Etheostoma radiosum (C. L. Hubbs & J. D. Black, 1941) (orangebelly darter) Etheostoma rafinesquei Burr & Page, 1982 (Kentucky darter) Etheostoma ramseyi Suttkus & R. M. Bailey, 1994 (Alabama darter) Etheostoma raneyi Suttkus & Bart, 1994 (Yazoo darter) Etheostoma rubrum Raney & Suttkus, 1966 (bayou darter) Etheostoma rufilineatum (Cope, 1870) (redline darter) Etheostoma rupestre C. H. Gilbert & Swain, 1887 (rock darter) Etheostoma sagitta (D. S. Jordan & Swain, 1883) (arrow darter) Etheostoma saludae (C. L. Hubbs & Cannon, 1935) (saluda darter) Etheostoma scotti Bauer, Etnier & Burkhead, 1995 (Cherokee darter) Etheostoma segrex S. M. Norris & W. L. Minckley, 1997 (Río Salado darter) Etheostoma sellare (Radcliffe & W. W. Welsh, 1913) (Maryland darter) Etheostoma sequatchiense Burr, 1979 (Sequatchie darter) Etheostoma serrifer (C. L. Hubbs & Cannon, 1935) (sawcheek darter) Etheostoma simoterum (Cope, 1868) (snubnose darter) Etheostoma sitikuense Blanton, 2008 (Citico darter) Etheostoma smithi Page & Braasch, 1976 (slabrock darter) Etheostoma spectabile (Agassiz, 1854) (orangethroat darter) Etheostoma spilotum C. H. Gilbert, 1887 (Kentucky arrow darter, Cumberland Plateau darter) Etheostoma squamiceps D. S. Jordan, 1877 (spottail darter) Etheostoma stigmaeum (D. S. Jordan, 1877) (speckled darter) Etheostoma striatulum Page & Braasch,