Rutilus atropatenus

Common name. Azerbaijani spring roach.

Diagnosis. Distinguished from other species of Rutilus in West Asia by: ○ tip of snout above horizontal level of lower eye margin / ○ 34–38+2–3 lateral-line scales / ○ 6–7 scales between dorsal origin and lateral line. Size up to 80 mm SL.

Distribution . Azerbaijan: Springs in Alazani-Agrichay valley in lower Kura drainage.

Habitat. Karstic springs, where it is the only fish species.

Biology. No data.

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

Further reading. Derjavin 1937 (description); Artaev et al. 2018 (distribution); Kuljanishvili et al. 2020 (generic placement).