ocellatum, Ophidium Tilesius [W. G. von] 1811:237, Pl. 8 (fig. 2) [Mémoires de l'Académie Impériale des Sciences de Sankt Pétersbourg (5e Série) v. 3; ref. 4408] Petropavlovsk harbor, Kamchatka, Russia. Syntypes: (2-4) whereabouts unknown. •Valid as Opisthocentrus ocellatus (Tilesius 1811) -- (Lindberg & Krasyukova 1975:105 [ref. 7348], Amaoka & Miki in Masuda et al. 1984:302 [ref. 6441], Matarese et al. 1989:508 [ref. 26885], Lavrova 1990:51 [ref. 20302], Sokolovskaya et al. 1998:12 [ref. 24670], Posner & Lavenberg 1999:1038 [ref. 24188], Nakabo 2000:1052 [ref. 25182], Zemnukhov et al. 2001:420 [ref. 25412], Sheiko & Fedorov 2000:38 [ref. 25650], Mecklenburg et al. 2002:762 [ref. 25968], Nakabo 2002:1052 [ref. 26193], Choi et al. 2003:377, 643 [ref. 26218], Fedorov et al. 2003:124 [ref. 27579], Mecklenburg & Sheiko 2004:8 [ref. 27604], Parin et al. 2014:446 [ref. 33547], Dyldin & Orlov 2017:75 [ref. 35138], Kim et al. 2020:157 [ref. 39118], Dyldin & Orlov 2021:852 [ref. 38925], Dyldin et al. 2021:53 [ref. 38804]). Current status: Valid as Opisthocentrus ocellatus (Tilesius 1811). Opisthocentridae. Distribution: Northwestern Pacific: western Bering Sea, Okhotsk Sea, coasts of Japan to central Honshu, Japan Sea to Korean Peninsula. Habitat: brackish, marine.