formosum, Oxymetopon Fourmanoir [P.] 1967:272, Fig. 5 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 39 (no. 2); ref. 7961] Vietnam. Holotype: IOI. Paratypes: IOI (1). •Valid as Oxymetopon formosum Fourmanoir 1967 -- (Ikeda et al. 2000:2 [ref. 25036], Larson in Randall & Lim 2000:641 [ref. 25122]). •Synonym of Oxymetopon compressus Chan 1966 -- (Prokofiev 2016:135 [ref. 34651] as compressum). Current status: Synonym of Oxymetopon compressus Chan 1966. Microdesmidae: Ptereleotrinae. Distribution: Western Pacific [if valid]. Habitat: marine.