oreas, Orthrias Jordan [D. S.] & Fowler [H. W.] 1903:769, Fig. 2 [Proceedings of the United States National Museum v. 26 (no. 1332); ref. 2461] Chitose in Iburi, Hokkaido, Japan. Holotype (unique): Sapporo Mus. Non-types: BMNH 1905.2.4.134 [from Jordan] (1). •Synonym of Nemacheilus barbatulus (Linnaeus 1758) -- (Berg 1949:869 [ref. 20661] as Nemachilus). •Synonym of Barbatula barbatula (Linnaeus 1758), subspecies nuda (Bleeker 1868) -- (Zhu 1989:29 [ref. 17744]). •Synonym of Barbatula toni (Dybowski 1869) -- (Okada 1961:541 [ref. 6363], Vasil'eva 1998:95 [ref. 23591], Sideleva 2001:54 [ref. 26181], Sideleva 2003:11 [ref. 27815], Kottelat 2006:53 [ref. 28831]). •Synonym of Orthrias barbatulus (Linnaeus 1758), but a valid subspecies oreas (Jordan & Fowler 1903) -- (Prokofiev 2007:15 [ref. 30347]). •Valid as Barbatula oreas (Jordan & Fowler 1903) -- (Kottelat 2012:79 [ref. 32367], Prokofiev 2015:461 [ref. 34065], Dyldin et al. 2023:[8] [ref. 40328]). Current status: Valid as Barbatula oreas (Jordan & Fowler 1903). Nemacheilidae. Distribution: East Asia: Hokkaido (Japan) and South Korea. Habitat: freshwater.