gymnopomus, Eleotris Bleeker [P.] 1853:274 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 4 (no. 2); ref. 12580] Western Sumatra, Indonesia. Holotype (unique): whereabouts unknown. •Valid as Butis gymnopomus (Bleeker 1853) -- (Kottelat et al. 1993:134 [ref. 23448], Mohsin & Ambak 1996:562 [ref. 27969], Larson in Randall & Lim 2000:636 [ref. 25122], Larson & Murdy 2001:3577 [ref. 26293] dated 1854, Tan & Lim 2004:110 [ref. 27716], Larson et al. 2008:137 [ref. 29532], Kottelat 2013:390 [ref. 32989], Batuwita et al. 2016:252 [ref. 34819], Parenti 2021:21 [ref. 38603], Jamandre 2023:167 [ref. 40455], Keith & Mennesson 2023:447 [ref. 40541]). Current status: Valid as Butis gymnopomus (Bleeker 1853). Eleotridae: Butinae. Distribution: Indo-West Pacific: India, Sri Lanka, Myanmar, Indonesia, Thailand and Vietnam. Habitat: freshwater, brackish, marine.