angustistomatus, Varicorhinus Fang [P.-W.] 1941:139 [Bulletin de la Société Zoologique de France v. 65 (no. 3) [for 1940]; ref. 13122] Sui-Fou, Szechuan, China. Syntypes: MNHN 1940-0138 (1), NRIBAS M.1690 (1), M. 1776-1778 (? now 2). Type catalog: Bertin & Estève 1948:48 [ref. 19574]. The species epithet angustistomatus is an adjective; it is spelled angustistomatum when in Onychostoma. •Valid as Varicorhinus angustistomatus Fang 1941 -- (Wu et al. 1977:313 [ref. 4807]). •Valid as Onychostoma angustistomatum (Fang 1941) (often seen as angustistomata) -- (Bănărescu 1971:245 [ref. 7666], Ding 1994:334 [ref. 21531], Shan et al. in Yue 2000:139 [ref. 25272], Tang et al. 2001:13 [ref. 25373], Xin et al. 2009:261 [ref. 30708], Hoang et al. 2015:123 [ref. 33811], Zhang et al. 2016:92 [ref. 34477], Song et al. 2018:160 [ref. 35890], Guo 2021:368 [ref. 38617]). Current status: Valid as Onychostoma angustistomatum (Fang 1941). Cyprinidae: Acrossocheilinae. Distribution: East Asia: Yangtze River basin (China). IUCN (2023): Critically Endangered. Habitat: freshwater.