252. Hyrcanogobius bergi Iljin, 1928

Common name. Volga dwarf goby

Taxonomy. Original description: Hyrcanogobius bergi Iljin, 1928:44, Figs. 7-11 [Northern Caspian Sea, near mouths of rivers Volga, Ural, and Emba, Russia and Kazakhstan; syntypes: (many) ZIN 25417 (5) Volga] .

Revisions. None.

Illustrations. Zarei et al. (2022a: 171, fig. 15).

Distribution in Iran. —Distribution in River Basin: Caspian Sea.―Distribution in Ecoregions: 450-Turan Plain, 452-Caspian Marine.

Status in Iran. [Native].—Gavmahi-e kotole-e Volga.—Listed in previous checklists from Iran by Esmaeili et al. (2017 a, 2018); Jouladeh-Roudbar et al. (2020).—Iran material: ZM-CBSU.

Conservation. —IUCN: LC.