Onychostoma Günther [A.] 1896:211 Neut. Onychostoma laticeps Günther 1896. Type by monotypy. •Synonym of Varicorhinus Rüppell 1835 -- (Lévêque & Daget 1984:336 [ref. 6186]). •Synonym of Varicorhinus Rüppell 1836, but a valid subgenus Onychostoma -- (Bănărescu 1971 [ref. 7666], Wu et al. 1977:306 [ref. 4807], Chu & Cui in Chu & Chen 1989:213 [ref. 13584], Chen et al. in Pan et al. 1991:160 [ref. 23876], Chen in Chen 1998:159 [ref. 23556]). •Valid as Onychostoma Günther 1896 -- (Kottelat 1989:9 [ref. 13605], Chen 1989 [ref. 14144], Doi 1997:23 [ref. 22832], Bănărescu 1997:24 [ref. 23274], Shan 1997:11[ref. 25091], Shan et al. in Yue et al. 2000:126 [ref. 25272], Lothongkham & Musikasinthorn 2006:237 [ref. 29827], Romero et al. 2009 [ref. 30522], Zhao et al. 2011:1549 [ref. 31493], Ma & Zhao 2012:109 [ref. 34891], Jian-Lian & Chen 2013:62 [ref. 32417], Kottelat 2013:128 [ref. 32989], Yang et al. 2015:99 [ref. 33694] in Cyprininae, tribe Acrossocheilini, Hoàng et al. 2015:123 [ref. 33811], Zhang et al. 2016:91 [ref. 34477], Song et al. 2018:147 [ref. 35890]). Current status: Valid as Onychostoma Günther 1896. Cyprinidae: Acrossocheilinae.