sakhalinus, Hypomesus Hamada [K.] 1957:137, Figs. 1-3 [Japanese Journal of Ichthyology v. 5 (nos 3-6); ref. 12141] Lake Taraika, Sakhalin, Russia. Holotype: not researched. Paratypes: (18). •Synonym of Hypomesus olidus (Pallas 1814) -- (McAllister 1963:31 [ref. 8075], Lee et al. 1980:121 [ref. 22416], Saruwatari 1997:74 [ref. 23753], Parin et al. 2014:114 [ref. 33547], Dyldin & Orlov 2016:673 [ref. 34853] with question). Current status: Synonym of Hypomesus olidus (Pallas 1814). Osmeridae. Habitat: freshwater, brackish, marine.