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Eigenmannia
''Eigenmannia'' is a genus of fish in the family (biology), family Sternopygidae (glass knifefishes) native to tropical and subtropical South America (south to the Río de la Plata Basin), and Panama.Peixoto, L.A.W., Dutra, G.M. & Wosiacki, W.B. (2015). The Electric Glass Knifefishes of the ''Eigenmannia trilineata'' species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. ''Zoological Journal of the Linnean Society, 175 (2): 384–414.'' They are typically found in slow-flowing streams, along the edge of large rivers, in deep river channels and in floodplains, and the genus also includes ''E. vicentespelaea'', the only Cavefish, cave-adapted knifefish. ''Eigenmannia'' are often found near submerged roots, aquatic plants and floating meadows. Depending on the exact species, they have a maximum total length of . They are nocturnal, and feed on small invertebrates such as aquatic insect larvae and zooplanktonic crustaceans. Species These are the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eigenmannia Virescens
''Eigenmannia virescens'', the glass knifefish, is a weakly electric freshwater fish found across South America. It is marketed as an aquarium fish. Description The appendix on the body has black lines running through the bottom of the sides, with the most intense line running on the anal fin. Like all members of its order, it is distinguished by its ability to produce electric fields. This is achieved by discharging an electric organ in the tail. Distribution This species is widely distributed in the rivers of South America. Their range extends from the Magdalena River basin in Colombia to the Rio de La Plata in Argentina, including Peru, Bolivia, Paraguay, Uruguay, Brazil, Venezuela, Guyana, and Suriname. See also * Feature detection (nervous system), Feature detection References External links * Aquatic Community: Glass Knife Fish - ''Eigenmannia virescens'' {{Authority control Eigenmannia, virescens Freshwater fish of Argentina Fish of Bolivia Knifefis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |