Oxynoemacheilus frenatus (Heckel, 1843)

Distribution in the area. Endemic. Described from Mosul but recently only found in the headwaters of the upper Tigris as well as in its tributaries down to the Batman River. Not recorded from rivers downstream of the Batman (Kaya et al. 2016; Freyhof et al. 2017a). Sayyadzadeh & Esmaeili (2020) identified a population of loaches from the Iranian Lesser Zab drainage as O. frenatus . Without new materials from Mosul the identity of O. frenatus cannot be clarified.