ubangensis, Mastacembelus Boulenger [G. A.] 1911:637 [Annals and Magazine of Natural History (Series 8) v. 8 (no. 47); ref. 14784] Ubangi River at Banzyville, Democratic Republic of Congo. Syntypes: BMNH 1901.12.26.65 (1), MRAC 1204 (1). •Valid as Caecomastacembelus ubangensis (Boulenger 1911) -- (Travers 1984:145 [ref. 5147], Gosse 1986:427 [ref. 6194]). •Synonym of Mastacembelus niger Sauvage 1879 -- (Vreven 2007:567 [ref. 30080]). Current status: Synonym of Mastacembelus niger Sauvage 1879. Mastacembelidae. Habitat: freshwater.