elegans, Opsariichthys Pellegrin [J.] & Chevey [P.] 1934:342, 468, Fig. 1 (addendum) [Bulletin de la Société Zoologique de France v. 59 (no. 4); ref. 16448] Ngoi-Thia River at Nghia Lô, Tonkin, Vietnam. Holotype: MNHN 1934-0264. Paratypes: (1) IOI 461 (1); MGHNL 42000053 [3607B] (1). Type catalog: Bertin & Estève 1948:68 [ref. 19574], Kottelat 1987:22 [ref. 11434]. •Synonym of Zacco spilurus (Günther 1868) -- (Mai 1978:128 [ref. 13511]). •Synonym of Parazacco spilurus (Günther 1868) -- (Chen & Chu in Chen et al. 1998:38 [ref. 23878]). •Synonym of Parazacco fasciatus (Koller 1927) -- (Kottelat 2001:34 [ref. 25482]). Current status: Synonym of Parazacco spilurus (Günther 1868). Xenocyprididae. Habitat: freshwater.