Stenodus leucichthys (Güldenstaedt, 1772)

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 : 223

Stenodus leucichthys (Güldenstaedt, 1772) – Native

Salmo leucichthys Güldenstädt [J. A. von] 1772: 533; Type locality: Volga and Ural Rivers from Caspian Sea, Kamtchatka, Russia. No types known.

Salmo nelma Pallas [P. S.] 1773: 216, 716; Type locality: Larger Siberian rivers, Russia. No types known.

Salmo mackenzii Richardson [J.] 1823: 707 [3]; Type locality: Mackenzie River system including Salt River, Canada. No types known.

Coregonus lucius Nilsson [S.] 1855: 466; Type locality: Arkhangelsk, Russia. No types known.

Common name: Pr: Sefid mahi, Azad mahi, En: Beloribitsa, Sheefish.

Diagnosis: Mouth large, the protruding lower jaw, and the presence of only 13 to 17 gill rakers on the lower limb of the first gill arch, Dorsal fin high and pointed, pelvic axillary present and well-developed, Generally silvery, with the back usually rather green, blue or pale brown, silvery white below, dorsal and caudal fins have dusky margins, other fins pale.

Meristic characters: D: II–VI 8–13, A: II–V 9–16, P: 14–17, V: 11–12, LL: 88–121, GR: 14–22, TV: 63– 69.

Distribution: Caspian Sea basin ( Fig. 414). This species is rare in Iranian waters. Recently (June 2018) we saw a single specimen of this species (about 55 cm and 3,500 gr) in the fish market at Freydonkenar city. In addition, Poursaeid and Falahatkar (2012) recorded from Gilan coast.

Taxonomy: Berg (1949) placed in Stenodus .

Conservation: IUCN: Extinct in the Wild (Freyhof and Kottelat 2008an).