cryptacanthus, Mastacembelus Günther [A.] 1867:102 [Proceedings of the Zoological Society of London 1867 (pt 1) (art. 2) (for 24 Jan. 1867); ref. 1986] Cameroon, western Africa. Holotype (unique): BMNH 1866.6.26.11. •Valid as Caecomastacembelus cryptacanthus (Günther 1867) -- (Travers 1984:145 [ref. 5147], Gosse 1986:423 [ref. 6194], Lévèque et al. 1991:146 [ref. 31367], Travers in Lévêque et al. 1992:856 [ref. 21590], Travers 1992:335 [ref. 14258], Vreven 2004:102 [ref. 27762]). •Valid as Mastacembelus cryptacanthus Günther 1867 -- (Vreven 2007:565 [ref. 30080], Fermon et al. 2022:226 [ref. 39448], Kanu et al. 2022:67 [ref. 39409]). Current status: Valid as Mastacembelus cryptacanthus Günther 1867. Mastacembelidae. Distribution: Western-central Africa: Benin, Nigeria, Cameroon, Equatorial Guinea, Gabon. Habitat: freshwater.