arcus, Yaoshanicus Lin [S.-Y.] 1931:51, Fig. 3 [Carps and carp-like fishes; ref. 4019] Yaoshan, Kwangsi, China. Types not researched. •Valid as Yaoshanicus arcus Lin 1931 -- (Yang & Hwang 1964:42 [ref. 13497], Ye & Song in Pan et al. 1991:77 [ref. 23876], Zheng et al. 1989:70 [ref. 21202], Zhu 1995:26 [ref. 25213], Chen & Chu in Chen et al. 1998:54 [ref. 23878]). •Valid as Aphyocypris arcus (Lin 1931) -- (Liao et al. 2011:662 [ref. 31495], Zhang et al. 2016:47 [ref. 34477]). Current status: Valid as Aphyocypris arcus (Lin 1931). Xenocyprididae. Distribution: China. Habitat: freshwater.