ansorgii, Mastacembelus Boulenger [G. A.] 1905:459 [Annals and Magazine of Natural History (Series 7) v. 15 (no. 89) (art. 59); ref. 15344] Quanza River, Angola. Holotype (unique): BMNH 1905.5.29.59. •Valid as Caecomastacembelus ansorgii (Boulenger 1905) -- (Travers 1984:145 [ref. 5147], Gosse 1986:421 [ref. 6194]). •Valid as Mastacembelus ansorgii Boulenger 1905 -- (Skelton 2019:237 [ref. 36564]). Current status: Valid as Mastacembelus ansorgii Boulenger 1905. Mastacembelidae. Distribution: Southwestern Africa: Angola. Habitat: freshwater.