Oxynoemacheilus evreni (Erk'Akan, Nalbant & Ozeren, 2007)

Freyhof, JÖrg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, De Gruyter : 503

Oxynoemacheilus evreni

Common name. Ceyhan sportive loach.

Diagnosis. Distinguished from other species of Oxynoemacheilus in Cilicia and northern Levant by: ○ caudal emarginate, middle caudal ray 80–91 % of length of longest ray in upper caudal lobe / ○ caudal with dark-brown bands of elongated blotches / ○ a yellowish triangle at upper and lower posteriormost portions of caudal peduncle / ○ one central, bold-brown blotch or no blotch on caudal base, often an irregularly shaped black bar at caudal base / ○ lateral line complete / ○ flank and back behind dorsal base covered by scales / ○ suborbital groove present in male / ○ no prominent dorsal crest on caudal peduncle / ○ flank

Oxynoemacheilus fatmae ; Güzelhisar drainage, Türkiye; 70 mm SL.

Meymeh. It is superficially very similar to O. kurdistanicus and O. marunensis , and these species appear to have formed hybrid populations in some parts of the Tigris drainage. Oxynoemacheilus freyhofi from the Karun drainage is a synonym. Further reading. Bănărescu & Nalbant 1964 (description); Jouladeh-Roudbar et al. 2016e (description as O. freyhofi ); Freyhof & Özuluğ 2017 (synonyms).

posterior to dorsal base and caudal peduncle with a series of bold, usually irregularly shaped bars reaching from dorsal midline almost to ventral midline / ○ caudal–peduncle depth 1.8–2.4 times in its length. Size up to 68 mm SL.

Distribution. Türkiye: Ceyhan drainage.

Habitat. Small streams to larger rivers. In fast-flowing stretches usually in riffles with gravel substrate.

Biology. No data.

Conservation status. LC.

Remarks. Seyhan drainage records are subject to confirmation.

Further reading. Erk’akan et al. 2007 (description); Erk’akan et al. 2014 (size); Freyhof et al. 2021a (distribution).