nianguae, Etheostoma (Hadropterus) Gilbert [C. H.] & Meek [S. E.] in Gilbert 1887:52 [Proceedings of the United States National Museum v. 10 (no. 607); ref. 17814] Niangua River near Marshfield, Missouri, U.S.A. Lectotype: USNM 36214. Paralectotypes: CAS-SU 5299 [? ex Univ. Cincinnati] (1), USNM 38319 (1). Type catalog: Böhlke 1953:73 [ref. 12291], Collette & Knapp 1967:33 [ref. 20211]. Lectotype established by Jordan & Evermann 1896:1043 [ref. 2443]. •Valid as Etheostoma nianguae Gilbert & Meek 1887 -- (Lee et al. 1980:671 [ref. 22416], Kuehne & Barbour 1983:70 [ref. 38055], Page 1983:59 [ref. 22189], Page & Burr 1991:308 [ref. 18983], Mattingly & Galat 2002:573 [ref. 26227], Nelson et al. 2004:134 [ref. 27807], Scharpf 2008:28 [ref. 30399], Page & Burr 2011:569 [ref. 31215], Page et al. 2013:138 [ref. 32708], Page et al. 2023:200 [ref. 40505]). Current status: Valid as Etheostoma nianguae Gilbert & Meek 1887. Percidae: Etheostomatinae. Distribution: North America: Missouri (U.S.A.). Habitat: freshwater.