nieuwenhuisii, Bagarius Popta [C. M. L.] 1904:190 [Notes from the Leyden Museum v. 24 (no. 4) (art. 6) (for Oct. 1902); ref. 3547] Bo River, Mahakam basin, Central Borneo. Holotype: RMNH 7561. Type catalog: Ferraris 2007:383 [ref. 29155]. Described in more detail and figured in Popta 1906:66, Pl. 4 (fig. 14). •Synonym of Bagarius yarrelli (Sykes 1839) -- (Roberts 1989:133 [ref. 6439], Thomson & Page 2006:28 [ref. 28859], Ferraris 2007:383 [ref. 29155], Kottelat 2013:221 [ref. 32989]). •Possibly a synonym of Bagarius lica Volz 1903 -- (Ng & Kottelat 2021:141 [ref. 38128]). Current status: Uncertain as Bagarius lica Volz 1903. Sisoridae: Sisorinae. Habitat: freshwater.