rarus, Varicorhinus Lin [S.-Y.] 1933:204, Fig. 1 [Lingnan Science Journal, Canton v. 12 (no. 2); ref. 16496] Yunkiang, Kweichow, China. Holotype: SYSU. K108. Paratypes: USNM 94855 (1). •Valid as Varicorhinus rarus Lin 1933 -- (Wu et al. 1977:317 [ref. 4807], Zheng et al. 1989:194 [ref. 21202], Zhu 1995:61 [ref. 25213]). •Valid as Onychostoma rara (Lin 1933) -- (Bănărescu 1971:246 [ref. 7666], Ding 1994:340 [ref. 21531], Shan et al. in Yue 2000:144 [ref. 25272], Tang et al. 2001:13 [ref. 25373], Zhang et al. 2016:93 [ref. 34477]). •Valid as Onchostoma rarum (Lin 1933) -- (Xin et al. 2009:261 [ref. 30708], Hoang et al. 2015:123 [ref. 33811]). Current status: Valid as Onychostoma rarum (Lin 1933). Cyprinidae: Acrossocheilinae. Distribution: China. Habitat: freshwater.