elongatus, Gnathonemus Pfaff [J. R.] 1933:276, Fig. 1 [Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, Kjøbenhavn v. 94; ref. 16517] Kabara, Mali, West Africa. Holotype (unique): ZMUC P21177. Type catalog: Nielsen 1974:29 [ref. 9588]. Subjectively invalid; secondarily preoccupied by Mormyrus elongatus Rüppell 1832 in Gnathonemus. Replaced by Gnathonemus pfaffi Fowler 1958. •Synonym of Marcusenius senegalensis (Steindachner 1870) -- (Daget 1984:89 [ref. 6170], Lévèque et al. 1991:138 [ref. 31367]). 2°Homonym. Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Habitat: freshwater.