cylindricus, Rhinogobio Günther [A.] 1888:432 [Annals and Magazine of Natural History (Series 6) v. 1 (no. 6); ref. 14483] Chang Jiang [Yangtze River] at Ichang, China. Holotype (unique): BMNH 1888.5.15.33. Also appeared as new in Günther 1891:246 [ref. 14508]. •Valid as Megagobio cylindricus (Günther 1888) -- (Naseka 1996:157 [ref. 22943]). •Valid as Rhinogobio cylindricus Günther 1888 -- (Lu et al. 1977:509 [ref. 2850], Zhu 1995:81 [ref. 25213], Chen in Chen 1998:139 [ref. 23556], Yue in Chen et al. 1998:334 [ref. 23878], Tang et al. 2001:13 [ref. 25373], Zhang et al. 2016:77 [ref. 34477], Zhang et al. 2019:243 [ref. 36699], Guo 2021:252 [ref. 38617]). Current status: Valid as Rhinogobio cylindricus Günther 1888. Gobionidae. Distribution: Yangtze River basin, China. Habitat: freshwater.