dybowskii, Hypoptychus Steindachner [F.] 1880:158 [Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 17 (no. 19) (for 18 July 1880); ref. 20481] Peter the Great Bay. Syntypes: (several) NMW 58203 (3). Species illustrated and described in more detail in Steindachner 1880:257 [p. 20 of separate], pl. 2 (fig. 3), [ref. 4230]. •Valid as Hypoptychus dybowskii Steindachner 1880 -- (Gosline 1963:90 [ref. 21388], Lindberg & Krasyukova 1975:201 [ref. 7348], Ida in Masuda et al. 1984:83 [ref. 6441], Choi et al. 2003:231, 552 [ref. 26218], Parin 2003:S21 [ref. 28536], Parin et al. 2014:203 [ref. 33547], Dyldin & Orlov 2017:56 [ref. 35138], Kwun & Yim 2018:1 [ref. 36314], Kim et al. 2020:85 [ref. 39118], Dyldin et al. 2021:57 [ref. 38804], Dyldin & Orlov 2022:35 [ref. 38972]). Current status: Valid as Hypoptychus dybowskii Steindachner 1880. Hypoptychidae. Distribution: Northwestern Pacific. Habitat: brackish, marine.