Chondrostoma holmwoodii (Boulenger, 1896)

Freyhof, JÖrg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, De Gruyter : 336

Chondrostoma holmwoodii

Common name. Eastern Aegean nase.

Diagnosis. Distinguished from other species of Chondrostoma in Aegean, Marmara, and Black Sea basins by: ○ 60−69 total lateral-line scales / ○ 6−6, rarely 7–6, pharyngeal teeth / ○ 8½ branched dorsal rays / ○ 8−10½, usually 9½, branched anal rays / ○ usually 8 branched pelvic rays / ○ 21−24 gill rakers / ○ thick cornified sheath covering lower lip. Size up to 230 mm SL.

Distribution . Türkiye: Gediz north to Bakırçay drainages.

Habitat. Mid-sized streams to large rivers with rocky or gravelly bottoms and moderately fast currents, also in reservoirs.

Biology. Lives up to 5 years. Matures at 2–3 years. Spawns March to early May.

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

Further reading. Elvira 1987 (review); İlhan et al. 2011 (growth, biology); Güçlü et al. 2018 (morphology); Çiftçi et al. 2020 (phylogeny); İlhan et al. 2020 (distribution).

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Chondrostoma holmwoodii

Distribution