5. Acipenser nudiventris Lovetsky, 1828

Common name. Fringebarbel sturgeon

Taxonomy. Original description: Acipenser nudiventris Lovetsky, 1828: 78, pl. 6, fig. 2 [Aral Sea; no types known; original description reproduced in Berg (1905: 2, footnote)].

Revisions. Berg (1948: 66).

Illustrations. Berg (1948: 68, figs. 55-56).

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].—Tas mahi shekam brahne.—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: CR.