fuscus, Gnathonemus Pellegrin [J.] 1901:328 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 7 (no. 7); ref. 14887] Congo. Lectotype: MNHN 1890-0009. Paralectotypes: MNHN 1890-0008 (1). Type catalog: Bertin 1940:265 [ref. 293]. Lectotype selected by Boden et al. 1997:1670 [ref. 23218]. •Valid as Marcusenius fuscus (Pellegrin 1901) -- (Gosse 1984:83 [ref. 6169], Boden et al. 1997:1670 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Decru et al. 2019:233 [ref. 36749]). Current status: Valid as Marcusenius fuscus (Pellegrin 1901). Mormyridae. Distribution: Middle Congo basin, Central Africa. Habitat: freshwater.