Species that contain: Gnathonemus and livingstonii [ 2 ] records

livingstonii, Gnathonemus Boulenger [G. A.] 1899:803 [Proceedings of the Zoological Society of London 1898 (pt 4) (art. 4); ref. 17092] Ruvuma River, Mozambique. Holotype (unique): BMNH 1864.7.9.30. •Valid as Marcusenius livingstonii (Boulenger 1899) -- (Gosse 1984:84 [ref. 6169], Snoeks 2004:20 [ref. 28111], Kramer & Wink 2013:8 [2334] [ref. 32824], Maake et al. 2014:465 [ref. 33223]). Current status: Valid as Marcusenius livingstonii (Boulenger 1899). Mormyridae. Distribution: Mozambique: Ruvuma River. Habitat: freshwater.

nyasensis, Gnathonemus Worthington [E. B.] 1933:295, Fig. 2 [Proceedings of the Zoological Society of London Part 2; ref. 16532] Bar House and Southwest Arm, Lake Malawi [Lake Nyasa], southeastern Africa. Syntypes: (27) BMNH 1932.11.15.25-34 (27), NMW 6994 (1). •Valid as Marcusenius nyasensis (Worthington 1933) -- (Gosse 1984:87 [ref. 6169]). •Synonym of Marcusenius livingstonii (Boulenger 1899) -- (Snoeks 2004:20 [ref. 28111]). Current status: Synonym of Marcusenius livingstonii (Boulenger 1899). Mormyridae. Distribution: Eastern Africa: Lake Malawi. Habitat: freshwater.