leopoldianus, Gnathonemus Boulenger [G. A.] 1899:72, Pl. 33 (fig. 3) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Ibali Island, Lake Leopold II, Congo. Syntypes: BMNH 1899.9.26.41 (1); MRAC 661 (1), 662 (1). •Valid as Marcusenius leopoldianus (Boulenger 1899) -- (Gosse 1984:84 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Marcusenius leopoldianus (Boulenger 1899). Mormyridae. Distribution: Western-central Africa: Congo River system. Habitat: freshwater.