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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] James Abram Garfield Rehn (1881–1965) was an American entomologist who served as zoologist on the George Vanderbilt African Expedition (1934). Fowler mis-spelt his surname in the binomial – quite an achievement for a 4–letter name! (Ref. 128868), visit book page.
More on author: Fowler.
Issue
Considered to most likely be a junior synonym of Marcusenius victoriae according to Ref. 52331 (see also Ref. 4903), but this needs to be confirmed.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Africa: known from Lake Victoria in Tanzania (Ref. 4967) and Uganda (Ref. 42005).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.8 cm TL male/unsexed; (Ref. 42005)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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