flumineus, Tukugobius Mizuno [N.] 1960:117, Fig. 1 [Memoirs of the College of Science, Kyoto University (Ser. B, Biology) v. 27 (no. 2) (art. 4); ref. 11937] Sojya-gawa River at Oshita, Ochi District, Ehime Prefecture, Shikoku, Japan. Holotype: TKPM P.3000. Paratypes: (5) TKPM P.3001-5 (1, 1, 1, 1, 1), Type catalog: Ito et al. 2024:567 [ref. 41062]. •Valid as Rhinogobius flumineus (Mizuno 1960) -- (Hayashi in Masuda et al. 1984:271 [ref. 6441], Kawanabe & Mizuno 1989:600 [ref. 25598], Shimizu et al. 1993:329 [ref. 22464], Sato 1995:52 [ref. 25531], Uehara 1996:89 [ref. 24778], Takahashi et al. 1997:48 [ref. 24971], Chen & Miller 1998:219 [ref. 23576], Sato et al. 1998:43 [ref. 24972], Chen et al. 1999:176 [ref. 23885], Hirashima & Tachihara 2000:29 [ref. 24515], Sakai et al. 2000:52 [ref. 24911], Nakabo 2000:1255 [ref. 25182], Matsuura et al. 2000:236 [ref. 26000], Nakabo 2002:1255 [ref. 26193], Chen & Fang 2006:252 [ref. 28955], Chen et al. 2008:341 [ref. 29895], Suzuki et al. 2012:697 [ref. 31734], Huang et al. 2016:[8] [ref. 34339], Takahashi & Okazaki 2017:[2] [ref. 35171], Suzuki et al. 2017:82 [ref. 35202], Parenti 2021:356 [ref. 38603], Suzuki et al. 2022:29 [ref. 39148], Ito et al. 2024:567 [ref. 41062]). Current status: Valid as Rhinogobius flumineus (Mizuno 1960). Oxudercidae: Gobionellinae. Distribution: East Asia: Japan. Habitat: freshwater.