Marcusenius Gill, 1862
EOL Text
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Red List Criteria
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Population
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| Source | http://www.iucnredlist.org/apps/redlist/details/60768 |
Population
Population Trend
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| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/60775 |
Major Threats
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| Source | http://www.iucnredlist.org/apps/redlist/details/60768 |
Major Threats
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Conservation Actions
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| Source | http://www.iucnredlist.org/apps/redlist/details/60768 |
Conservation Actions
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| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/60775 |
Practical key for Marcusenius species with eight circumpeduncular scales from Boden et al. (1997)
Note: This key applies ONLY to those species with large scales and eight scales around the peduncle.
Fewer than 29 dorsal-fin rays, dorsal-fin origin posterior to or in line with the anal fin origin and dorsal-fin length shorter than anal-fin length. → 2
- More than 26 dorsal-fin rays, dorsal-fin origin anterior to the anal-fin origin and dorsal-fin length equal to or greater than anal-fin length → 7
2: 21 or more transverse scale rows between dorsal- and anal-fin origins and more than 42 lateral-line scales → 3
- 20 or fewer transverse scale rows between dorsal- and anal-fin origins and fewer than 45 lateral-line scales → 6
3: Dorsal fin slightly concave with rounded anterior margin, dorsal-fin rays 22-26, anal fin rays 31-34, 54-61 lateral-line scales and total vertebrae 48-49. → Marcusenius fuscus
- Dorsal fin deeply concave with pointed anterior margin; not with all these characters → 4
4: Two rows of scales on transverse dark band between dorsal- and anal-fin origins, submental swelling small, 42-54 lateral-line scales and 32-35 anal-fin rays. → Marcusenius schilthuisiae
- Three or more rows of scales on a transverse dark band between dorsal- and anal-fin origin, sub-mental swelling well developed, 49-61 lateral-line scales and 26-33 anal-fin rays → 5
5: 20-23 dorsal-fin rays; 26-30 anal-fin rays and dorsal-fin height about same as its length which is approximately 25% of the predorsal distance → Marcusenius dundoensis
- 24-28 dorsal-fin rays; 29-33 anal-fin rays and dorsal-fin height less than its length which is approximately 35% of the predorsal distance. → Marcusenius sanagaensis
6: Mouth subinferior; three scale rows on transverse dark band between dorsal- and anal-fin origin → Marcusenius intermedius
- Mouth terminal; two, sometimes three, scale rows on transverse dark band between dorsal- and anal-fin origin. → Marcusenius moorii
7: 27-31 dorsal-fin rays; ratio dorsal-fin length/anal-fin length < 1.25. → Marcusenius kutuensis
- 32-34 dorsal-fin rays; ratio dorsal-fin length/anal-fin length > 1.25. → Marcusenius ghesquierei
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Hopkins, C.D., Boden, G., Teugels, G., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2098 |
Marcusenius is a genus of elephantfishes native to Africa.[1] Its members are highly diverse in size, with the smallest species reaching less than 15 cm (5.9 in) and the largest more than 1 m (3.3 ft).[1]
Species[edit]
There are currently 43 recognized species in this genus:[1][2][3][4]
- Marcusenius abadii (Boulenger, 1901)
- Marcusenius altisambesi B. J. Kramer, P. H. Skelton, van der Bank & Wink, 2007
- Marcusenius angolensis (Boulenger, 1905)
- Marcusenius annamariae (Parenzan, 1939)
- Marcusenius bentleyi (Boulenger, 1897)
- Marcusenius brucii (Boulenger, 1910)
- Marcusenius caudisquamatus Maake, Gon & Swartz, 2014[4]
- Marcusenius cuangoanus (Poll, 1967)
- Marcusenius cyprinoides (Linnaeus, 1758)
- Marcusenius deboensis (Daget, 1954)
- Marcusenius devosi B. J. Kramer, P. H. Skelton, van der Bank & Wink, 2007
- Marcusenius dundoensis (Poll, 1967)
- Marcusenius friteli (Pellegrin, 1904)
- Marcusenius furcidens (Pellegrin, 1920)
- Marcusenius fuscus (Pellegrin, 1901)
- Marcusenius ghesquierei (Poll, 1945)
- Marcusenius gracilis B. J. Kramer, 2013[2]
- Marcusenius greshoffii (Schilthuis, 1891)
- Marcusenius intermedius Pellegrin, 1924
- Marcusenius kainjii D. S. C. Lewis, 1974
- Marcusenius krameri Maake, Gon & Swartz, 2014[4]
- Marcusenius kutuensis (Boulenger, 1899)
- Marcusenius leopoldianus (Boulenger, 1899)
- Marcusenius livingstonii (Boulenger, 1899)
- Marcusenius lucombesi Maake, Gon & Swartz, 2014[4]
- Marcusenius macrolepidotus (W. K. H. Peters, 1852) (Bulldog)
- Marcusenius macrophthalmus (Pellegrin, 1924)
- Marcusenius mento (Boulenger, 1890)
- Marcusenius meronai Bigorne & Paugy, 1990
- Marcusenius monteiri (Günther, 1873) (Monteiri's bulldog)
- Marcusenius moorii (Günther, 1867)
- Marcusenius multisquamatus B. J. Kramer & Wink, 2013[3]
- Marcusenius ntemensis (Pellegrin, 1927)
- Marcusenius nyasensis (Worthington, 1933)
- Marcusenius pongolensis (Fowler, 1934)
- Marcusenius rheni (Fowler, 1936)
- Marcusenius sanagaensis Boden, Teugels & Hopkins, 1997
- Marcusenius schilthuisiae (Boulenger, 1899)
- Marcusenius senegalensis (Steindachner, 1870)
- Marcusenius stanleyanus (Boulenger, 1897)
- Marcusenius thomasi (Boulenger, 1916)
- Marcusenius ussheri (Günther, 1867)
- Marcusenius victoriae (Worthington, 1929) (Victoria stonebasher)
References[edit]
- ^ a b c Froese, Rainer, and Daniel Pauly, eds. (2013). Species of Marcusenius in FishBase. April 2013 version.
- ^ a b Kramer, B. (2013): Differentiation in morphology and electrical signalling in four species of para- and sympatric Marcusenius (Teleostei: Mormyridae) from Côte d’Ivoire, West Africa. Marine and Freshwater Behaviour and Physiology, 46 (2): 105–133.
- ^ a b Kramer, 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, Online first, http://dx.doi.org/10.1080/00222933.2013.798699
- ^ a b c d Maake, 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.
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| Source | http://en.wikipedia.org/w/index.php?title=Marcusenius&oldid=634163148 |