Oxynoemacheilus isauricus

Common name. Beyşehir sportive loach.

Diagnosis. Distinguished from other species of Oxynoemacheilus in Central Anatolia and rivers flowing to Bay of Antalya by: ● caudal–peduncle depth 2.2–2.6 times in its length / ○ caudal deeply emarginate, shortest middle caudal ray 71–85 % of longest ray of upper caudal lobe / ○ preanal length 68–74 % SL / ○ head length 21–24 % SL / ○ body depth strongly decreasing between dorsal and caudal bases / ○ flank with scales / ○ flank with a series of irregularly shaped and set, vertically elongated midlateral blotches, usually disconnected from saddles on back, rarely a mottled or marbled pattern / ○ upper part of cheek without or with vermiculated dark-brown spots / ○ tip of anal not reaching ventral adipose crest / ○ prepelvic length 51–51 % SL / ○ suborbital groove present in male. Size up to 63 mm SL.

Distribution . Türkiye: Lake Beyşehir and Suğla basin. Detailed distribution is poorly known.

Habitat. Fast-flowing streams on gravel substrate.

Biology. No data.

Conservation status. EN; appears to be declining within its small range.

Further reading. Yoğurtçuoğlu et al. 2021b (description).