asperus, Zacco Nichols [J. T.] & Pope [C. H.] 1927:366, Fig. 32 [Bulletin of the American Museum of Natural History v. 54 (art. 2); ref. 5747] Nodoa, Hainan Island, China. Holotype: AMNH 8376. Paratypes: (17) AMNH 10229 (15). •Valid as Zacco asperus Nichols & Pope 1927 -- (Yang & Hwang 1964:47 [ref. 13497]). •Synonym of Zacco spilurus (Günther 1868) -- (Bănărescu 1968:308 [ref. 20605], Mai 1978:128 [ref. 13511]). •Synonym of Parazacco spilurus (Günther 1868) -- (Ye & Song in Pan et al. 1991:72 [ref. 23876], Chen & Chu in Chen et al. 1998:39 [ref. 23878]). •Synonym of Parazacco fasciatus (Koller 1927) -- (Kottelat 2013:139 [ref. 32989]). Current status: Synonym of Parazacco spilurus (Günther 1868). Xenocyprididae. Habitat: freshwater, brackish.