longianalis, Marcusenius Boulenger [G. A.] 1901:5, Pl. 3 (fig. 1) [Proceedings of the Zoological Society of London 1901, v. 1 (pt 1) (art. 1); ref. 559] Junction of Ethiop River and Jamieson River, Niger Delta. Syntypes: BMNH 1901.1.28.5-6 (2). •Valid as Brienomyrus longianalis (Boulenger 1901) -- (Gosse 1984:64 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Paugy et al. 1990:336 [ref. 26477], Bigorne in Lévêque et al. 1990:164 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Hopkins et al. 2007:303 [ref. 30019]). Current status: Valid as Brienomyrus longianalis (Boulenger 1901). Mormyridae. Distribution: West-central Africa: Cameroon. Habitat: freshwater.