masago, Gobius ornatus form Tomiyama [I.] 1936:73, Fig. 26 [Japanese Journal of Zoology v. 7 (no. 1) (art. 5); ref. 4413] Coast of Tiba-ken [Chiba-ken], Japan. Holotype: ZUMT 30228. Paratypes: ZUMT 34047 (1). •Valid as Pseudogobius masago (Tomiyama 1936) -- (Akihito in Masuda et al. 1984:269 [ref. 6441], Kawanabe & Mizuno 1989:577 [ref. 25598], Chen et al. 1996:3 [ref. 22533], Kim 1997:448 [ref. 24032], Sato et al. 1998:41 [ref. 24972], Mizuno et al. 1999:12 [ref. 25311], Nakabo 2000:1210 [ref. 25182], Larson 2001:203 [ref. 25522], Sakai et al. 2001:115 [ref. 25693], Kim & Park 2002:371 [ref. 25913], Nakabo 2002:1210 [ref. 26193], Choi et al. 2003:399, 663 [ref. 26218], Prokofiev 2007:149 [ref. 34653], Huang et al. 2013:96 [ref. 33734], Huang et al. 2014:112 [ref. 33161], Chen et al. 2014:132 [ref. 33159], Matsui et al. 2014:7 [ref. 33344], Larson & Hammer 2021:43 [ref. 38276], Parenti 2021:349 [ref. 38603], Taki et al. 2021:457 [ref. 39830]). Current status: Valid as Pseudogobius masago (Tomiyama 1936). Oxudercidae: Gobionellinae. Distribution: Western North Pacific: ?Singapore, Vietnam, China, Taiwan and Japan. Habitat: freshwater, brackish.