pterolineata, Sewellia Roberts [T. R.] 1998:277, Fig. 4 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23902] Trac Khuc [Khu] River, Nghia Bin Province [Quang Nghia Province], Vietnam. Holotype (unique): RMNH 31832. •Valid as Sewellia pterolineata Roberts 1998 -- (Freyhof & Serov 2000:229 [ref. 25068], Freyhof 2003:225 [ref. 27390], Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:300 [ref. 34912]). Current status: Valid as Sewellia pterolineata Roberts 1998. Gastromyzontidae. Distribution: Southeast Asia: Vietnam. Habitat: freshwater.