20. Alosa sphaerocephala (Berg, 1913)

Common name. Agrakhon shad

Taxonomy. Original description: Clupeonella sphaerocephala Berg, 1913: 20, pl. 12 (figs. 1, 1a) [Off Tyuleniy Island, north of Agrakhan Bay, Russia, Caspian Sea; lectotype: ZIN 15928 (190 mm), lectotype established by Svetovidov, 1952: 227] .

Revisions. Berg (1948: 122 as Caspialosa sphaerocephala); Whitehead (1985: 209).

Illustrations. Whitehead (1985: 209, fig.).

Distribution in Iran. —Distribution in River Basin: Caspian Sea.—Distribution in Ecoregions: 434-Kura-South Caspian Drainages, 450-Turan Plain, 452-Caspian Marine.

Status in Iran. [Native].—Shagmahi-e Agrakhan.—Listed in previous checklists from Iran by Esmaeili et al. (2017 a, 2018); Jouladeh-Roudbar et al. (2020) and Eagderi et al. (2022).—Iran material: None.

Conservation. —IUCN: LC.