formosanus, Rhinogobius Oshima [M.] 1919:300, Pl. 53 (fig. 2) [Annals of the Carnegie Museum v. 12 (nos 2-4); ref. 3312] Shinchiku, Taiwan. Holotype (unique): FMNH 59135 [ex CM 8273]. Type catalog: Henn 1928:97 [ref. 12305], Ibarra & Stewart 1987:75 [ref. 12367], Ho & Shao 2011:57 [ref. 31432]. •Synonym of Rhinogobius similis Gill 1859 -- (Okada 1961:659 [ref. 6363]). •Synonym of Rhinogobius brunneus (Temminck & Schlegel 1845) -- (Vasil'eva 1998:146 [ref. 23591]). •Valid as Rhinogobius formosanus Oshima 1919 -- (Ho & Shao 2011:57 [ref. 31432], Suzuki et al. 2012:698 [ref. 31734], Zhang et al. 2016:202 [ref. 34477], Takahashi & Okazaki 2017:[3] [ref. 35171], Suzuki et al. 2017:80 [ref. 35202], Li et al. 2018:5 [ref. 35989], Parenti 2021:357 [ref. 38603], Chen et al. 2022:40 [ref. 39617]). Current status: Valid as Rhinogobius formosanus Oshima 1919. Oxudercidae: Gobionellinae. Distribution: Western Pacific: Fujian (China) and Taiwan. Habitat: freshwater, brackish, marine.