fortis, Macrones Popta [C. M. L.] 1904:185 [Notes from the Leyden Museum v. 24 (no. 4) (art. 6) (for Oct. 1902); ref. 3547] Bo River, Central Borneo. Syntypes: RMNH 7551 (4). Type catalog: Ferraris 2007:88 [ref. 29155]. •Status uncertain, in Hemibagrus -- (Ng & Ng 1995:135 [ref. 21730]). •Synonym of Mystus nemurus (Valenciennes 1840) -- (Jayaram & Sanyal 2003:86 [ref. 26894]). •Valid as Hemibagrus fortis (Popta 1904) -- (Parenti & Lim 2005:189 [ref. 28285], Ferraris 2007:88 [ref. 29155], Ng & Kottelat 2013:239 [ref. 32495], Kottelat 2013:258 [ref. 32989], Wilkinson & Tan 2018:602 [ref. 36226]). Current status: Valid as Hemibagrus fortis (Popta 1904). Bagridae. Distribution: Borneo. Habitat: freshwater.