vespertinus, Akysis Ng [H. H.] 2008:256, Fig. 1, 4a, 5a [Ichthyological Exploration of Freshwaters v. 19 (no. 3); ref. 29979] Headwaters of Ann Chaung drainage, ca. 19 kilometers east by south of Ann, 19°43'N, 94°11'E, Rakhine state, Myanmar. Holotype: UMMZ 248755. Paratypes: CMK 20752 (2); UMMZ 248756 (4), 248757 (2); ZRC 51345 (2). •Valid as Akysis vespertinus Ng 2008 -- (Ng 2009:6 [ref. 30104], Ng 2011:66 [ref. 31572], Kottelat 2013:219 [ref. 32989], Ng et al. 2022:8 [ref. 39344]). Current status: Valid as Akysis vespertinus Ng 2008. Akysidae: Akysinae. Distribution: Ann Chaung drainage, Rakhine, western Myanmar. Habitat: freshwater.