brevicaudatus, Acheilognathus elongatus Chen [Y.-R.] & Li [Z.-Y.] 1987:62 [English p. 66], Fig. 2B [Zoological Research v. 8 (no. 1); ref. 8970] Yangzonhai Lake, flowing into the Nanpan River, Yunnan Province, China, 24°51' - 24°58'N, 102°59' - 103°02'E. Holotype: KIZ 1984001222[ex 843056]. Paratypes: (27) KIZ 1984001223-26 [ex 843040-43] (4), 1984001227-28 [ex 843045-46] (2), 1984001229 [ex 843055] (1), 1984001230 [ex 843057] (1), 1984001231 [ex 8430599] (1), 1984001232-35 [ex 843049-52] (4), 1984001236 [ex 843060] (1), 1984001237 [ex 841114] (1), 1984001238 [ex 843065] (1), 1984001239-43 [ex 843068-72] (5), 1984001675 [ex 843064] (1), 1984001676-80 (5). Type catalog: Du et al. 2013:347 [ref. 32939] as breviacauatus, Min et al. 2026:154 [ref. 42825]. •In genus Acheilognathus -- (Arai & Akai 1988:208 [ref. 6999]). •Synonym of Acheilognathus elongatus (Regan 1908), but a valid subspecies as described -- (Yang et al. 1990:69 [ref. 16186], Yang & Chen 1995:58 [ref. 23555], Zhu 1995:45 [ref. 25213], Lin in Chen et al. 1998:437 [ref. 23878], Zhang et al. 2016:67 [ref. 34477], Zhang et al. 2019:214 [ref. 36699]). •Valid as Acheilognathus brevicaudatus Chen & Li 1987 -- (Kottelat 1998:55 [ref. 23436], Yang et al. 2010:336 [ref. 30786], Yang et al. 2011:163 [ref. 31154], Yang et al. 2011:163 [ref. 31154], Nguyen et al. 2013:20 [ref. 32689]). Current status: Valid as Acheilognathus brevicaudatus Chen & Li 1987. Acheilognathidae. Distribution: East Asia: upper Yangtze River basin, Yunnan (China). IUCN (2023): Critically Endangered. Habitat: freshwater.