persicus, Acipenser Borodin [N. A.] 1897:18, Figs. [Vestnik Rybopromyshlennosti St. Petersburg v. 12; ref. 19955] Ural River to Ural'sk, Kazakhstan; Kura River, Azerbijan; southern shore of Caspian Sea, Iran. Syntypes: (2 measured) none at ZIN. •Synonym of Acipenser gueldenstaedti Brandt & Ratzeberg 1833, but a valid subspecies -- (Berg 1948:81 [ref. 12882], Lelek 1987:50 [ref. 22962], see also Sokolov 1998:19 [ref. 23571], Ninua & Japoshvili 2008:164 [ref. 31251]). •Valid as Acipenser persicus Borodin 1897 -- (Coad 1995:7 [ref. 23608], Artyukhin 1995:7 [ref. 23782], Bemis et al. 1997:37 [ref. 22871], Reshetnikov et al. 1997:726 [ref. 24702], Birstein & Bemis 1997:158 [ref. 29760], Coad 1998:102 [ref. 23869], Pourkazemi et al. 2000:1 [ref. 25536], Bogutskaya et al. 2001:42 [ref. 26178], Bogutskaya & Naseka 2004:24 [ref. 28183], Fricke et al. 2007:21 [ref. 29533], Kottelat & Freyhof 2007:55 [ref. 29996], Kottelat & Freyhof 2007:55 [ref. 29996], Vasil'eva 2007:38 [ref. 30517], Ruban et al. 2011:470 [ref. 31229], Esmaeili et al. 2010:365 [ref. 33391], Hilton et al. 2011:136 [ref. 31407], Parin et al. 2014:43 [ref. 33547], Jouladeh-Roudbar et al. 2015:858 [ref. 34062], Çiçek et al. 2015:143 [ref. 35151], Esmaeili et al. 2017:25 [ref. 35254], Esmaeili et al. 2018:7 [ref. 36089], Çiçek et al. 2020:243 [ref. 37644], Dyldin et al. 2020:79 [ref. 37569], Jouladeh-Roudbar et al. 2020:16 [ref. 37983], Kaya et al. 2020:328 [ref. 37582], Kuljanishvili et al. 2020:[4] [ref. 37535], Dyldin et al. 2022:[10] [ref. 39193], Çiçek et al. 2024:29 [ref. 40789]). Current status: Valid as Acipenser persicus Borodin 1897. Acipenseridae. Distribution: Eastern Atlantic, Europe and Middle east: Caspian Sea and adjacent watersheds; introduced elsewhere. Habitat: freshwater, brackish.