mekongensis, Stenogobius (Stenogobius) Watson [R. E.] 1991:592, Figs. 11a-b [Records of the Western Australian Museum v. 15 (pt 3); ref. 19908] Bassac River at Chau-Doc, upper Mekong River Delta, Vietnam. Holotype: NSMT P.23911. Paratypes: LIAIP 1971268 (2), 1972382 (2); NSMT-P 23912 (1); USNM 272584 (1). •Valid as Stenogobius mekongensis Watson 1991 -- (Kottelat 2013:429 [ref. 32989], Parenti 2021:372 [ref. 38603], Taki et al. 2021:470 [ref. 39830], Endruweit 2024:88 [ref. 41040]). Current status: Valid as Stenogobius mekongensis Watson 1991. Oxudercidae: Gobionellinae. Distribution: Southeast Asia: lower Mekong River basin, southern Cambodia and Vietnam. Habitat: freshwater, brackish, marine.