merga, Cobitis Krynicki [J.] in Nordmann 1840:470 [Voyage dans la Russie méridionale et la Crimée; ref. 3209] Rivière Podcoumok, près de Paitigorsk [Podkumok ve Pyatigorska, north Caucases]. nurga is a misspelling in Cuvier & Valenciennes 1846:24 [ref. 1011]. •Valid as Nemacheilus merga Krynicki 1840 -- (Berg 1949:873 [ref. 20661] as Nemachilus). •Valid as Orthrias merga (Krynicki 1840) -- (Bănărescu & Nalbant 1995:449 [ref. 23187]). •Valid as Barbatula merga (Krynicki 1840) -- (Reshetnikov et al. 1997:743 [ref. 24702], Vasil'eva 1998:95 [ref. 23591], Bogutskaya et al. 2001:45 [ref. 26178], Bogutskaya & Naseka 2004:114 [ref. 28183]). •Valid as Oxynoemacheilus merga (Krynicki 1840) -- (Kottelat & Freyhof 2007:333 [ref. 29996], Prokofiev 2009:881 [ref. 30604], Golzarianpour et al. 2011:205 [ref. 31693], Freyhof et al. 2012:307 [ref. 31752], Kottelat 2012:98 [ref. 32367], Kuljanishvili et al. 2020:[6] [ref. 37535], Dyldin et al. 2023:[9] [ref. 40328]). Current status: Valid as Oxynoemacheilus merga (Krynicki 1840). Nemacheilidae. Distribution: Western Caspian Sea basin. Habitat: freshwater.