Rutilus frisii (Nordmann, 1840)

Jouladeh-Roudbar, Arash, Ghanavi, Hamid Reza & Doadrio, Ignacio, 2020, Fig. 4 in Fig. 4 in Fig. 3 in Fig. 21. Sesarmops mora n in Paralbunea dayriti, Zoological Studies 59 (21), pp. 1-303 : 143

Rutilus frisii (Nordmann, 1840) – Native ( Fig. 258)

Gardonus wyrozub Walecki [A.] 1863: 341, 360; Type locality: Several localities. No types known. Syntypes:?NMW 50456 (2).

Leuciscus frisii caspius Lönnberg [E.] 1900: 16; Type locality: Volga River delta, Russia. Holotype (unique): NRM.

Rutilus frisii velecensis Chichkoff [G.] 1932: 355, 371; Type locality: Veleca River and Rezvaïa River, tributary to Black Sea, Bulgaria. Syntypes: whereabouts unknown.

Common name: Pr: Mahi sefid, En: Kutum.

Diagnosis: Body almost cylindrical, depth 19– 26% SL, abdomen posterior to pelvic rounded, snout rounded, mouth stout and subterminal and see Rutilus lacustris .

Meristic characters: D: III 8–10 (9), A: III 9–12 (10), P: 16–19, V: 8–9 (8), GR: 8–11, LL: 47–59, TV: 40–44.

Distribution: Caspian Sea basin ( Fig. 259). Entering almost all the rivers to spawn including Atrak, Gorgan, Qarasu, Tajan, Babol, Haraz, Sardab, Aras, Shirud, Tonekabon, Valiabad, Khoshkrud, Polrud and Sefidrud rivers also found in Anzali Wetland and Gorgan Bay.

Taxonomy: Berg (1949) placed in Rutilus .

Conservation: IUCN: Least Concern (Freyhof and Kottelat 2008ai).