hadropterus, Ctenogobius Jordan [D. S.] & Snyder [J. O.] 1901:60, Fig. 7 [Proceedings of the United States National Museum v. 24 (no. 1244); ref. 2509] Nagasaki, Japan. Holotype: CAS-SU 6449. Paratypes: CAS-SU 6551 (6), 6663 (19). Type catalog: Koumans 1940:141 [ref. 2676] with SU 6663 as cotypes, Böhlke 1953:110 [ref. 12291]. •Synonym of Gobius giurinus Rutter 1897 -- (Lindberg & Krasyukova 1975:359 [ref. 7348]). •Synonym of Rhinogobius giurinus (Rutter 1897) -- (Okada 1961:665 [ref. 6363] as handropterus, Chen & Shao 1996:201 [ref. 22202], Kim 1997:583 [ref. 24032], Kottelat 2001:61 [ref. 25482], Kottelat 2013:425 [ref. 32989]). •Synonym of Rhinogobius similis Gill 1859 -- (Mitrofanov et al. 1992:269 [ref. 37756], Suzuki et al. 2015:[4] [ref. 33993], Suzuki et al. 2017:80 [ref. 35202]). Current status: Synonym of Rhinogobius similis Gill 1859. Gobiidae: Gobionellinae. Habitat: freshwater, brackish, marine.