meridionale, Onychostoma Kottelat [M.] 1998:42, Fig. 58 [Ichthyological Exploration of Freshwaters v. 9 (no. 1); ref. 23436] Upper Xe Bangfai, about 1 kilometer upriver of confluence with stream descending from Phou Taloun (17°09'42"N, 100°12'33"E), Laos. Holotype: ZRC 41783. Paratypes: CMK 12263 (104), DFV uncat. (4), NRM 36702 (5), ZRC 41784 (5). •Valid as Onychostoma meridionale Kottelat 1998 -- (Kottelat 2001:63 [ref. 25780], Xin et al. 2009:261 [ref. 30708], Kottelat 2013:129 [ref. 32989], Hoang et al. 2015:123, 137 [ref. 33811], Kottelat 2015:42 [ref. 33971], Taki et al. 2021:150 [ref. 39830]). Current status: Valid as Onychostoma meridionale Kottelat 1998. Cyprinidae: Acrossocheilinae. Distribution: Southeast Asia: Mekong River basin, central and southern Laos and northern Cambodia. Habitat: freshwater.