machaerius, Parapelecus Abbott [J. F.] 1901:488, Fig. [Proceedings of the United States National Museum v. 23 (no. 1221); ref. 2] Pei-ho River, Tien-Tsin, China. Holotype: CAS-SU 6307. Paratypes: USNM 49549 (1). •Synonym of Parapelecus argenteus Günther 1889 -- (Yih & Wu 1964:82 [ref. 13499]). •Synonym of Pseudolaubuca sinensis Bleeker 1864, but a valid subspecies -- (Bănărescu 1971:14 [ref. 20612]). •Synonym of Pseudolaubuca sinensis Bleeker 1864 -- (Luo & Chen in Chen et al. 1998:156 [ref. 23878], Kottelat 2013:146 [ref. 32989], Zhang et al. 2016:63 [ref. 34477], Zhang et al. 2019:169 [ref. 36699]). Current status: Synonym of Pseudolaubuca sinensis Bleeker 1864. Xenocyprididae. Habitat: freshwater.