Alburnoides coskuncelebii

Common name. Büyük Melen spirlin.

Diagnosis. Distinguished from other species of Alburnoides in Mediterranean, Marmara, and Black Sea basins by: ○ tip of upper lip projecting lower lip / ○ 13–16½ branched anal rays / ○ 47−54+2−3 lateral line scales / ○ 6−9 gill rakers / ○ ventral keel covered by (2)3–5scales on its anterior part/○ proximal50–70 % of last unbranched dorsal ray ossified / ○ proximal 40–60 % of last unbranched anal ray ossified / ○ interorbital width 7–8 % SL / ○ caudal peduncle depth 10–11 % SL. Size up to 94 mm SL.

Distribution . Türkiye: Büyük Melen, Çayağzı, and Alaplı drainages.

Habitat. Streams and rivers with fast-flowing water, usually with cobble and gravel substrate.

Biology. No data.

Conservation status. VU; known from a small area where it is believed to be declining due to multiple threats (habitat modification, dams, drought, pollution).

Further reading. Turan et al. 2019b (description); Kaya 2020 (distribution); Canoğlu et al. 2023 (barcoding).