meklongensis, Macrognathus Roberts [T. R.] 1986:99, Fig. 1a [Japanese Journal of Ichthyology v. 33 (no. 2); ref. 5802] Kwae Noi River, Kao Lam Dam area, Mekong River basin, Thailand. Holotype: NMR 24780. Paratypes: NIFI (uncat.), NRM 24781 (2 or 4). •Valid as Macrognathus meklongensis Roberts 1986 -- (Arunkumar & Tombi Singh 2000:121 [ref. 25674], Britz 2010:307 [ref. 30685], Britz 2010:55 [ref. 30857], Kottelat 2013:312 [ref. 32989], Britz & Kottelat 2020:[5] [ref. 37336]). Current status: Valid as Macrognathus meklongensis Roberts 1986. Mastacembelidae. Distribution: Mekong River basin, Thailand. Habitat: freshwater.