filamentosum, Oxymetopon Fourmanoir [P.] 1967:271, Fig. 4 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 39 (no. 2); ref. 7961] Vietnam. Syntypes: IOI (2) [whereabouts unknown]. •Valid as Oxymetopon filamentosum Fourmanoir 1967 -- (Ikeda et al. 2000:2 [ref. 25036], Larson in Randall & Lim 2000:641 [ref. 25122], Larson 2001:3608 [ref. 26296], Prokofiev 2016:133 [ref. 34651], Parenti 2021:400 [ref. 38603]). Current status: Valid as Oxymetopon filamentosum Fourmanoir 1967. Gobiidae: Ptereleotrinae. Distribution: Western Pacific: Vietnam. Habitat: marine.