Marcusenius Gill, 1862

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Marcusenius schilthuisiae, male,120 mm SL. Mouth of Lubilu River into Congo River, near Yangambi, D.R. Congo
Illustration of the type specimen of Gnathonemus monteiri Günther (Marcusenius monteiri) from p.106 of Boulenger (1909).
Gnathonemus pongolensis Fowler (=Marcusenius pongolenesis), holotype (unique) ANSP 54950, Pongola River, South Africa
Gnathonemus livingstonii Boulenger (= Marcusenius livingstonii) holotype (unique) BMNH 1864.7.9.30. Rovuma [Ruvuma] R., Tanzania
Marcusenius schilthuisae juvenile, Congo River at Yangambi, Orientale, D.R. Congo
Marcusenius paucisquamatus Taverne, Thys van den Audenaerde & Heymer (=Marcusenius moorii) holotype: MRAC 73-18-P-11, Nyong R.
EOD waveform of Marcusenius monteiri tag no. JPF-1921, 24.7°C
Gnathonemus victoriae Worthington (= Marcusenius victoriae) syntype BMNH 1928.5.24.3, Lake Victoria.jpeg
Marcusenius cuangoanus (Poll), 116 mm TL, Uamba River, affluent of the Cuango River, Angola.Holotype from Poll 1967.
Gnathonemus schilthuisiae Boulenger (= Marcusenius schilthuisiae) holotype MRAC 663, Kutu, Lake Mai Ndombe, D.R. Congo
Marcusenius moorii, tag no. 5129, Ivindo River at Loa-Loa rapids, Gabon
Marcusenius monteiri tag no. JPS-070
Gnathonemus brucii Boulenger (=Marcusenius brucii) holotype BMNH 1909.3.3.2, Ogun River at Aro, Lagos State, southern Nigeria
Marcusenius ntemensis, Ivindo River at Loa-Loa rapids, Gabon
Marcusenius monteiri, 112 mm SL, tag no. JPF-1893
Gnathonemus thomasi Boulenger (= Marcusenius thomasi) holotype BMNH 1915.4.13.5, Northern Sherbo District, Sierra Leone

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Marcusenius moorii, tag no. 5129, Ivindo River at Loa-Loa rapids, Gabon

Marcusenius stanleyanus, 128 mm SL

Gnathonemus ghesquierei Poll (= Marcusenius ghesquierei) holotype MRAC 46288

Gnathonemus ntemensis Pellegrin (= Marcusenius ntemensis) holotype (unique) MNHN 1927-0162, Ntem River, Cameroon

Gnathonemus nyasensis Worthington (= Marcusenius livingstonii), syntypes BMNH 1932.11.15.25–34, Lake Malawi [Lake Nyasa]

Marcusenius intermedius Pellegrin holotype (unique) MRAC 15164, Kasaï River at Kabambaie, 5°45' S, 20°49' E, D.R. Congo

Mormyrus monteiri Günther (=Marcusenius monteiri) syntype BMNH 1873.7.28.3, Boma, Congo River, Democratic Republic of Congo

Gnathonemus furcidens Pellegrin (= Marcusenius furcidens) syntype MNHN 1920-0032 (1 of 3), Ivory Coast

Gnathonemus rheni Fowler (= Marcusenius rheni) paratype ANSP 65544, Lake VIctoria at Kitala, Uganda

Marcusenius kutuensis female 178 mm SL, JPS98-2450, AMNH 228156, Yobé River, Sangha River basin, C.A.R.