japonicus, Osmerus Brevoort [J. C.] 1856:no page number, Pl. 10 (fig. 2) [Notes on some figures of Japanese fish taken from recent specimens by the artists of the U. S. Japan Expedition. Pp. 253-288, Pls. 3-12 (color) In: M. C. Perry, Narrative of the Expedition of an American Squadron to the China Seas and Japan.; ref. 17284] Hakodate, Oshima Subprefecture, Hokkaido, Japan. No types known. Named on plate; described as Osmerus olidus? on p. 278 [p. 26 of separate]. Based on a drawing. •Synonym of Hypomesus pretiosus (Girard 1854), but a valid subspecies -- (McAllister 1963:30 [ref. 8075], Lee et al. 1980:122 [ref. 22416], Uyeno in Masuda et al. 1984:33 [ref. 6441], Kawanabe & Mizuno 1989:64 [ref. 25598]). •Valid as Hypomesus japonicus (Brevoort 1856) -- (Okada 1961:350 [ref. 6363], Chereshnev 1996:602 [ref. 24659], Saruwatari et al. 1997:76 [ref. 23753], Dorofeeva 1998:50 [ref. 23573], Sokolovskaya et al. 1998:8 [ref. 24670], Youn et al. 1999:152 [ref. 25173], Nakabo 2000:295 [ref. 25086], Sheiko & Fedorov 2000:18 [ref. 25650], Chereshnev et al. 2001:52 [ref. 26736] dated 1855, Shedko 2001:263 [ref. 25405], Pietsch et al. 2001:141 [ref. 25688], Mecklenburg et al. 2002:173 [ref. 25968], Nakabo 2002:295 [ref. 26001], Choi et al. 2003:190, 526 [ref. 26218], Fedorov et al. 2003:30 [ref. 27579], Bogutskaya & Naseka 2004:126 [ref. 28183], Parin et al. 2014:113 [ref. 33547], Dyldin & Orlov 2016:673 [ref. 34853], Dyldin et al. 2021:30 [ref. 38804]). Current status: Valid as Hypomesus japonicus (Brevoort 1856). Osmeridae. Distribution: Northwestern Pacific. Habitat: brackish, marine.