stegophthalmus, Agonus Tilesius [W. G. von] 1813:427, Pl. 12 (figs. 1-3) [Mémoires de l'Académie Impériale des Sciences de Saint Pétersbourg v. 4 (for 1811); ref. 13413] Terpeniya Bay, Sakhalin Island. Holotype (unique): not saved. •Synonym of Percis japonica (Pallas 1769) [some as japonicus] -- (Lindberg & Krasyukova 1987:280 [ref. 15964], Kanayama 1991:27 [ref. 19261], Sheiko 1993:79 [ref. 21227], Parin et al. 2002:S100 [ref. 28300], Sheiko & Mecklenburg 2004:3 [ref. 27591], Parin et al. 2014:293 [ref. 33547]). Current status: Synonym of Percis japonica (Pallas 1769). Agonidae: Hypsagoninae. Habitat: marine.