genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after
Johann Marcusen
Johann Marcusen (29 June 1817–10 July 1894) was a Baltic German ichthyologist.
Life and work
Johann Marcusen was born in Jelgava in present-day Latvia. He studied in Saint Petersburg and Tartu. Between 1851 and 1854 he conducted scientific j ...
.
Species
There are currently 45 recognized species in this genus:
* ''
Marcusenius abadii
''Marcusenius abadii'' is a species of electric fish of the family Mormyridae found in the Niger River, Niger, Benue River, Benue and Volta River, Volta rivers. It is native to Burkina Faso, Ghana, Niger and Togo; it can reach a size of approxima ...
'' (
Boulenger Boulenger is a surname. Notable people with the surname include:
* Benjamin Boulenger (born 1990), French footballer
* Edward George Boulenger (1888–1946), British zoologist, director of aquarium at London Zoo
* George Albert Boulenger (1858– ...
, 1901) (Djebba mormyrid)
* ''
Marcusenius altisambesi
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Wink
A wink is a facial expression made by briefly closing one eye. A wink is an informal mode of non-verbal communication usually signaling shared hidden knowledge or intent. However, it is ambiguous by itself and highly dependent upon additional c ...
, 2007 (bulldog)
* ''
Marcusenius angolensis
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Boulenger, 1905) (Quanza mormyrid)
* ''
Marcusenius annamariae
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius bentleyi
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Boulenger, 1897) (Bentley's mormyrid)
* ''
Marcusenius caudisquamatus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' Maake, Gon & E. R. Swartz, 2014Maake, P.A., Gon, O. & Swartz, E.R. (2014): Descriptions of three new species of ''Marcusenius'' Gill, 1862 (Teleostei: Mormyridae) from South Africa and Mozambique. ''Zootaxa, 3780 (3): 455–480.'' (Mhlatuze mormyrid)
* ''
Marcusenius cuangoanus
''Marcusenius cuangoanus'' is a species of electric fish in the family Mormyridae that is native to Angola; its range is limited to a specific area of the Kwango River, belonging to the Congo River; it can reach a size of approximately 114 mm.
R ...
'' (
Poll
Poll, polled, or polling may refer to:
Forms of voting and counting
* Poll, a formal election
** Election verification exit poll, a survey taken to verify election counts
** Polling, voting to make decisions or determine opinions
** Polling pla ...
, 1967) (Zovo mormyrid)
* ''
Marcusenius cyprinoides
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (
Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
,
1758
Events
January–March
* January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoologic ...
) (thicklipped trunkfish)
* ''
Marcusenius deboensis
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (
Daget
Jacques Daget (30 June 1919, Vineuil – 29 June 2009), was a French ichthyologist. He was a professor at the National Museum of Natural History, in Paris. Several marine species have been named after him.
Species named after him
Species named ...
, 1954) (Debo mormyrid)
* ''
Marcusenius desertus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' B. J. Kramer, van der Bank & Wunk, 2016Kramer, L.B., Van der Bank, F.H. & Wink, M. (2016): ''Marcusenius desertus'' sp. nov. (Teleostei: Mormyridae), a mormyrid fish from the Namib desert. ''African Journal of Aquatic Science, 41 (1): 1-18.'' (Cunene elephantfish)
* ''
Marcusenius devosi
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' B. J. Kramer, P. H. Skelton, van der Bank & Wink, 2007 (Wenje mormyrid)
* ''
Marcusenius dundoensis
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Poll 1967) (Dundo mormyrid)
* ''
Marcusenius elegans
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius friteli
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius furcidens
Ivory Coast mormyrid (''Marcusenius furcidens'') is a species of electric fish in the family Mormyridae, found in the Como, Bandama, Sassandra, Bia and Tano rivers. It is native to the Ivory Coast and Ghana; it can reach a size of approximately ...
'' (Pellegrin, 1920) (Ivory Coast mormyrid)
* ''
Marcusenius fuscus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius intermedius
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius kaninginii
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
There ...
'' KisekelwaBoden, Snoeks & Vreven 2016Kisekelwa, T., Boden, G., Snoeks, J. & Vreven, E. (2016): ''Marcusenius kaninginii'', a new species of elephantfish from the Lowa River basin, Democratic Republic of the Congo (Osteoglossiformes: Mormyridae). ''Ichthyological Exploration of Freshwaters, 26 (4): 341-352.''
* '' Marcusenius krameri'' Maake, Gon & E. R. Swartz, 2014 (Kramer's mormyrid)
* ''
Marcusenius kutuensis
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Boulenger, 1899) (Kutu Island mormyrid)
* ''
Marcusenius lambouri
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Pellegrin, 1904)
* ''
Marcusenius leopoldianus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius lucombesi
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius macrophthalmus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
There ...
Marcusenius meronai
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius monteiri
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius moorii
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
There ...
'' (Günther, 1867) (Talagouga mormyrid)
* ''
Marcusenius multisquamatus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' B. J. Kramer & Wink, 2013Kramer, B. & Wink, M. (2013): East–west differentiation in the ''Marcusenius macrolepidotus'' species complex in Southern Africa: the description of a new species for the lower Cunene River, Namibia (Teleostei: Mormyridae). ''Journal of Natural History, 47 (35-36): 2327-2362.'' (Epupa Falls mormyrid)
* '' Marcusenius ntemensis'' (Pellegrin, 1927) (Ntem mormyrid)
* '' Marcusenius pongolensis'' ( Fowler, 1934) (Southern bulldog)
* ''
Marcusenius sanagaensis
''Marcusenius'' is a genus of the Mormyridae, elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Speci ...
Marcusenius senegalensis
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (
Steindachner
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner descri ...
, 1870) (Trunkfish; Senegalese mormyrid)
* ''
Marcusenius stanleyanus
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
Marcusenius ussheri
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...
'' (Günther, 1867) (Bossumprah mormyrid)
* ''
Marcusenius victoriae
The Victoria stonebasher (''Marcusenius victoriae'') is a species of ray-finned fish in the family Mormyridae. It is found in Kenya, Rwanda, Tanzania, and Uganda. Its natural habitats are rivers, swamps, freshwater lakes, freshwater marshes, and ...
Marcusenius wamuinii
''Marcusenius'' is a genus of the elephantfish group native to Africa. Its members are highly diverse in size, with the smallest species reaching less than and the largest more than .
The genus is named after Johann Marcusen.
Species
Ther ...