gracilis, Acheilognathus Nichols [J. T.] 1926:5, Fig. 5 [American Museum Novitates No. 214; ref. 15600] Huping, Tungting Lake, Hunan Province, China. Holotype: AMNH 8448. Paratypes: AMNH 10923 (3), ?FMNH 14668 (1). •In genus Acheilognathus -- (Arai & Akai 1988:208 [ref. 6999]). •Valid as Acheilognathus gracilis Nichols 1926 -- (Wu 1964:207 [ref. 13503], Ding 1994:185 [ref. 21531], Zhu 1995:46 [ref. 25213], Cheng & Zhou 1997:148 [ref. 26385], Lin in Chen et al. 1998:417 [ref. 23878], Doi et al. 1999:307 [ref. 24230], Kim & Lee 2001:46 [ref. 25334], Yang et al. 2011:163 [ref. 31154], Zhang et al. 2016:67 [ref. 34477], Guo 2021:331 [ref. 38617]). Current status: Valid as Acheilognathus gracilis Nichols 1926. Acheilognathidae. Distribution: Yangtze River basin, China. Habitat: freshwater.