Acipenser stellatus Pallas, 1771 – Native (Fig. 24) Acipenser stellatus Pallas [P. S.] 1771; Type locality: Volga River at Simbirsk, Caspian Sea, Ural River to Gwje. No types known. Acipenser seuruga Güldenstädt [J. A. von] 1772: 533; Type locality: Caspian Sea. No types known. Acipenser helops Pallas [P. S.] 1814: 97; Type locality: Major rivers and seas of Russia. No types known. Acipenser ratzeburgii Brandt [J. F.] in Brandt & Ratzeburg 1833: 351, 352; Type locality: Caspian Sea at mouth of Emba River. Holotype: ZIN 11760. Acipenser stellatus donensis Lovetsky [A.] 1834: 263; Type locality: Don River, Russia. Acipenser stellatus danubialis Brusina [S.] 1902: 59; Type locality: Danube River. Syntypes: whereabouts unknown Acipenser stellatus illyricus Brusina [S.] 1902: 60; Type locality: Zadar, Dalmatia, Croatia, Adriatic Sea (Mediterranean Sea). Syntypes: whereabouts unknown. Acipenser stellatus ponticus Movchan [Yu. V.] 1970: 41; Type locality: Northwestern Black Sea, including Danube and Dneiper rivers. Syntypes: (many) whereabouts unknown. Common name: Pr: Ozoonboroon, Derakul, Tirij, Sevruga, Puze deraz, Mahi-ye khaviar, En: Starry sturgeon, Stellate Sturgeon. Diagnosis: Snout long (60–70% of HL) with pointed tip. Lower lip not continuous, interrupted at center. Barbels long reaching mouth but nearer to it than to tip of snout. Side with small bony stellate plates and smaller grains between main scutes rows. Back dark grey to almost black, flanks lighter, belly white. Meristic characters: D: 38–54, A: 20–40, GR: 24–29, DS: 9–16, LSC: 26–43, VS: 9–14. Distribution: Caspian Sea basin (Fig. 25). See Acipenser gueldenstaedtii. Taxonomy. Conservation: IUCN: Critically Endangered A2cde (Qiwei 2010).

Published as part of Jouladeh-Roudbar, Arash, Ghanavi, Hamid Reza & Doadrio, Ignacio, 2020, Ichthyofauna From Iranian Freshwater: Annotated Checklist, Diagnosis, Taxonomy, Distribution and Conservation Assessment, pp. 1-14 in Zoological Studies 59 (21) on page 18, DOI: 10.6620/ZS.2020.59-21, http://zenodo.org/record/12822787