3. Acipenser baerii Brandt, 1869

Common name. Siberian sturgeon

Taxonomy. Original description: Acipenser baerii Brandt, 1869: 115 [Ob and Lena River systems, Siberia, Russia; syntypes: whereabouts unknown] .

Revisions. Berg (1948: 86).

Illustrations. Berg (1948: 86, fig. 66).

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

Status in Iran. [Exotic].—Tas mahi baeri.—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. Not relevant (introduced species).