obscura, Eleotris Temminck [C. J.] & Schlegel [H.] 1845:149, Pl. 77 (figs. 1-3) [Fauna Japonica Parts 7-9; ref. 4373] Rivers emptying into Nagasaki Bay, Japan. Lectotype: RMNH 2040. Paralectotypes: RMNH 2039 (4), 28765 [ex RMNH 2040] (4). Lectotype selected by Boeseman 1947:129 [ref. 12876]. •Valid as Mogurnda obscura (Temminck & Schlegel 1845) -- (Kuroda 1953:277 [ref. 39545], Okada 1961:649 [ref. 6363]). •Valid as Odontobutis obscura (Temminck & Schlegel 1845), subspecies obscura -- (Kawanabe & Mizuno 1989:557 [ref. 25598], Matsuura et al. 2000:218 [ref. 26000]). •Valid as Odontobutis obscurus (Temminck & Schlegel 1845) [often as obscura] -- (Akihito in Masuda et al. 1984:241 [ref. 6441], Iwata et al. 1985:374 [ref. 6724], Zheng 1989:333 [ref. 21202], Sakai et al. 1993:61 [ref. 22463], Zhu 1995:175 [ref. 25213], Cheng & Zhou 1997:363 [ref. 26385], Takahashi et al. 1997:47 [ref. 24971], Watanabe 1998:264 [ref. 23491], Sakai et al. 1998:363 [ref. 23625], Sato et al. 1998:41 [ref. 24972], Sakai et al. 1999:109 [ref. 24209], Mizuno et al. 1999:11 [ref. 25311], Chae 1999:12 [ref. 25430], Nakabo 2000:1148 [ref. 25182], Tang et al. 2001:15 [ref. 25373], Iwata & Sakai 2002:110 [ref. 25892], Kim & Park 2002:353 [ref. 25913], Wu et al. 2002:9 [ref. 26026], Nakabo 2002:1148 [ref. 26193], Choi et al. 2003:397, 655 [ref. 26218], Sakai et al. 2002:39 [ref. 26446], Iwata 2011:71 [ref. 31725], Zhong et al. 2018:214 [ref. 36028] as obscura, Parenti 2021:434 [ref. 38603], Hu et al. 2023:3 [ref. 40381], Saiki et al. 2023:69 [ref. 40766]). Current status: Valid as Odontobutis obscurus (Temminck & Schlegel 1845). Odontobutidae. Distribution: East Asia: Japan and Korea. Habitat: freshwater.