papilio, Hemimyzon Kottelat [M.] 1998:61, Figs. 96-97a [Ichthyological Exploration of Freshwaters v. 9 (no. 1); ref. 23436] Nam Theun, waterfall at 18°01'40"N, 104°58'54"E, Laos. Holotype: ZRC 41788. Paratypes: CMK 12253 (56), 12715 (8); DFV uncat. (11); NRM 36704 (10); ZRC 41789 (10). •Valid as Hemimyzon papilio Kottelat 1998 -- (Freyhof et al. 2000:95 [ref. 25184], Kottelat 2001:97 [ref. 25780], Freyhof & Herder 2002:54 [ref. 26065], Kunlapapuk et al. 2012:119 [ref. 32192], Kottelat 2012:48 [ref. 32367], Kottelat 2013:187 [ref. 32989], Kottelat 2015:44 [ref. 33971], Lalramliana et al. 2018:111 [ref. 35735], Taki et al. 2021:238 [ref. 39830]). Current status: Valid as Hemimyzon papilio Kottelat 1998. Balitoridae. Distribution: Southeast Asia: Mekong River basin, southern Laos, Cambodia and Vietnam. Habitat: freshwater.