brachybarbatus, Akysis Chen [Y.-R.] in He & Chen 1981:210 (English p. 213), Fig. 2 [Zoological Research v. 2 (no. 3); ref. 21313] Nanrui River, Mekong River system, Menlian County, China. Holotype: KIZ 1978001026 [ex 787162]. Paratypes: (26) KIZ 1973001172-73 [ex 736026-27] (2), 1973001174 [ex 736047] (1), 1973001175 [ex 59078] (1), 1978001027 [ex 787132] (1), 1978001028 [ex 787134] (1),1978001029-31 [ex 787137-39] (3), 1978001032 [ex 787146] (1), 1978001033-34 [ex 787148-49] (2), 1978001035-36 [ex 787152-53] (2), 1978001037-38 [ex 787157-58] (2), 1978001039-40 [ex 787160-61] (2), 1978001041 [ex 787164] (1), 1978001042-43 [ex 787168-69] (2), 1978001044 [ex 787171] (1), 1978001046 [ex 787181] (1), 1978001945 [ex 787178] (1). Type catalog: Ferraris 2007:13 [ref. 29155], Du et al. 2013:354 [ref. 32939] with author as He. •Valid as Akysis brachybarbatus Chen 1981 -- (Zhu 1995:158 [ref. 25213], Ng & Kottelat 1996:19 [ref. 22212], Ng 1996:3 [ref. 22484], Ng & Kottelat 1998:1059 [ref. 23903], Yue & Chen 1998:224 [ref. 26415], Ng & Tan 1999:362 [ref. 24159], Chen in Chu et al. 1999:112 [ref. 24534], Ng & Kottelat 2000:9 [ref. 25042], Ng & Freyhof 2003:315 [ref. 27399], Ng & Rainboth 2005:33 [ref. 28353], Ng 2006:20 [ref. 28586], Page et al. 2007:292 [ref. 29140], Ferraris 2007:13 [ref. 29155], Ng 2007:53 [ref. 29306], Ng 2008:260 [ref. 29979], Ng 2009:7 [ref. 30104], Ng 2011:66 [ref. 31572], Kottelat 2013:218 [ref. 32989], Zhang et al. 2016:170 [ref. 34477], Fu et al. 2021:9572 [ref. 39347], Ng et al. 2022:7 [ref. 39344]). Current status: Valid as Akysis brachybarbatus Chen 1981. Akysidae: Akysinae. Distribution: Southeast Asia: Lancangjiang [Mekong] River, Yunnan (China). IUCN (2023): Vulnerable. Habitat: freshwater.