tschaiyssuensis, Noemacheilus Bănărescu [P. M.] & Nalbant [T. T.] 1964:177, Pl. 8 (fig. 13) [Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut v. 61; ref. 217] Çayı Su [Tchaiy-su], between Keyson (37°30'N, 37°50'E) and Gaziantep (37°00'N, 37°30'E), Euphrates basin, Turkey. Holotype: BMNH 1935.9.12.57. Paratypes: BMNH 1935.9.12.58-60 (3) Tchaiy-su. Genus is correctly Nemacheilus. •Valid as Orthrias tschaiyssuensis (Bănărescu & Nalbant 1964) -- (Bănărescu et al. 1978:264 [ref. 9016], Fricke et al. 2007:52 [ref. 29533]). •Valid as Oxynoemacheilus tschaiyssuensis (Bănărescu & Nalbant 1964) -- (Prokofiev 2009:881 [ref. 30604]). •Synonym of Oxynoemacheilus argyrogramma (Heckel 1847) -- (Freyhof et al. 2012:308 [ref. 31752], Kottelat 2012:95 [ref. 32367], Freyhof 2016:99 [ref. 34815], Çiçek et al. 2024:64 [ref. 40789]). Current status: Synonym of Oxynoemacheilus argyrogramma (Heckel 1847). Nemacheilidae. Habitat: freshwater.