Oxynoemacheilus chomanicus, Kamangar, Prokofiev, Ghaderi & Nalbant, 2014

Freyhof, JÖrg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, De Gruyter : 496-497

publication ID	https://doi.org/10.1515/9783111677811
DOI	https://doi.org/10.5281/zenodo.17820784
persistent identifier	https://treatment.plazi.org/id/C85F87D2-FE57-FE1F-2885-FB08FDB4FC5A
treatment provided by	Felipe
scientific name	Oxynoemacheilus chomanicus
status

Treatment

Oxynoemacheilus chomanicus View in CoL

Common name. Choman loach.

Diagnosis. Distinguished from other species of Oxynoemacheilus in Tigris drainage by: ○ dorsal profile straight / ○ caudalpedunclewithveryindistinct, fuzzybarsorvertically elongated blotches / ○ flank completely covered by scales /

at posteriormost caudal base, usually overlaid by a dark-brown or black chevron-shaped bar / ○ suborbital groove present in male / ○ no or a very short median incision in upper lip / ○ lateral line complete, terminating behind vertical of anal base or at caudal base / ○ flank completely covered by scales / ○ caudal–peduncle depth 1.4–1.7 times in its length / ○ caudal deeply emarginate or forked. Size up to 60 mm SL.

Distribution. Türkiye and most likely adjacent Syria: Beyazsu north of Nusaybin in Khabur drainage, a tributary of Euphrates.

Habitat. Fast-flowing waters in streams with gravel substrate.

Biology. No data.

Conservation status. EN; restricted range and ongoing threats such as droughts.

Further reading. Kaya et al. 2024c (description).

○ caudal slightly emarginate / ○ lateral line complete, terminating behind vertical of anal base or at caudal base / ○ suborbital groove absent in adult male / ○ maxillary barbel reaching to anterior eye margin or middle of eye / ○ colour pattern on anterior part of flank not interrupted by unpigmented zone along lateral line / ○ one central pore in supratemporal canal / ○ no median incision in upper lip / ○ interorbital distance 1.4–1.5 times in snout length / ○ caudal–peduncle depth 1.3–1.4 times in caudal–peduncle length / ○ 9+8 branched caudal rays / ○ posterior process of bony air-bladder capsule directed laterally. Size up to 77 mm SL.

Distribution. Iran and Iraq: Headwaters of Choman and Lesser Zab.

Habitat. Moderately fast-flowing waters in streams with gravel and rock substrate.

Biology. No data.

Oxynoemacheilus ciceki ; Soysallı, Türkiye; 60 mm SL.