dubius, Hippoglossoides Schmidt [P. Yu.] 1904:227, Pl. 6 (fig. 1) [Fishes of the eastern seas of the Russian Empire; ref. 3946] Mauka, western Sakhalin Island, Sea of Japan, depth 46-47 Russian fathoms; Aniva Bay, southern Sakhalin Island, Okhotsk Sea, depth 29 Russian fathoms. Syntypes: ZIN 12366-67 (1, 1). Type catalog: Voronina & Volkova 2019:267 [ref. 37075]. Appeared first without distinguishing featuers as Cynopsetta dubia in Schmidt 1903:521 (19 of separate) [ref. 3945]. •Valid as Hippoglossoides dubius Schmidt 1904 -- (Sakamoto in Amaoka et al. 1983:161, 217, 307, 348 [ref. 8379], Sakamoto 1984:208 [ref. 5273], Sakamoto in Masuda et al. 1984:351 [ref. 6441], Lindberg & Fedorov 1993:101 [ref. 21500], Kim & Youn 1994:111 [ref. 22286], Li & Wang 1995:232 [ref. 16193], Evseenko 1998:60 [ref. 23643], Sokolovskaya et al. 1998:14 [ref. 24670], Cooper & Chapleau 1998:707 [ref. 26711], Nakabo 2000:1375 [ref. 25182], Sheiko & Fedorov 2000:40 [ref. 25650], Nakabo 2002:1375 [ref. 26193], Choi et al. 2003:432, 683 [ref. 26218], Evseenko 2003:S61 [ref. 28535], Evseenko 2004:5 [ref. 27606], Shinohara et al. 2011:56 [ref. 31715], Shinohara et al. 2014:276 [ref. 33330], Parin et al. 2014:531 [ref. 33547], Tohkairin et al. 2015:14 [ref. 35331], Mecklenburg et al. 2016:226 [ref. 34440] see remarks, Vinnikov et al. 2018:159 [ref. 35844], Kim et al. 2020:191 [ref. 39118], Sonoyama et al. 2020:121 [ref. 37637], Dyldin et al. 2021:40 [ref. 38804], Tashiro 2022:84 [ref. 39012]). Current status: Valid as Hippoglossoides dubius Schmidt 1904. Pleuronectidae: Pleuronectinae. Distribution: Northwestern Pacific. Habitat: marine.