Eigenmannia

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Eigenmannia
Eigenmannia virescens 000.jpg
Eigenmannia virescens
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Actinopterygii
Order:
Gymnotiformes
Family:
Sternopygidae
Genus:
Eigenmannia

Type species
Sternopygus humboldtii
Steindachner, 1878

Eigenmannia is a genus of fish in the family Sternopygidae (glass knifefishes) native to tropical and subtropical South America (south to the Río de la Plata Basin), and Panama.[1][2] 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 cave-adapted knifefish.[2][3] Eigenmannia are often found near submerged roots, aquatic plants and floating meadows.[3][4]

Depending on the exact species, they have a maximum total length of 14.3–49.6 cm (6–20 in).[1] They are nocturnal, and feed on small invertebrates such as aquatic insect larvae and zooplanktonic crustaceans.[3]

Species[]

There are currently 23 recognized species in this genus:[1][5]

References[]

  1. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2019). Species of Eigenmannia in FishBase. August 2019 version.
  2. ^ a b c d e f g h i 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.
  3. ^ a b c van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. pp. 343–344. ISBN 978-0691170749.
  4. ^ Carvalho, L.N.; L. Fidelis; R. Arruda; A. Galuch; K. Zuanon (2013). "Second floor, please: the fish fauna of floating litter banks in Amazonian streams and rivers". Neotrop. Ichthyol. 11 (1): 78–91. doi:10.1590/S1679-62252013000100010.
  5. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Eigenmannia". Catalog of Fishes. California Academy of Sciences. Retrieved 31 August 2019.
  6. ^ Peixoto, L.A.W. & Wosiacki, W.B. (2016): Eigenmannia besouro, a new species of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae) from the rio São Francisco basin, northeastern Brazil. Zootaxa, 4126 (2): 262–270.
  7. ^ Campos-Da-Paz, R. & Queiroz, I.R. (2017): A new species of Eigenmannia Jordan and Evermann (Gymnotiformes: Sternopygidae) from the upper rio Paraguai basin. Zootaxa, 4216 (1): 73-84.
  8. ^ Dutra, G.M., Santana, C.D.d., Vari, R.P. & Wosiacki, W.B. (2014): The South American Electric Glass Knifefish Genus Distocyclus (Gymnotiformes: Sternopygidae): Redefinition and Revision. Copeia, 2014 (2): 345-354.
  9. ^ Waltz, B.T. & Albert, J.T. (2018): New Species of Glass Knifefish Eigenmannia loretana (Gymnotiformes: Sternopygidae) from the Western Amazon Zootaxa 4399(3): 399–411. doi:10.11646/zootaxa.4399.3.9
  10. ^ Dutra, G.M.; C.D. de Santana; W.B. Wosiacki (2017). "A new species of the glass electric knifefish genus Eigenmannia Jordan and Evermann (Teleostei: Gymnotiformes: Sternopygidae) from Río Tuíra basin, Panama". Copeia. 105 (1): 85–91. doi:10.1643/CI-16-439. S2CID 90571735.
  11. ^ Dutra, G.M.; L.A.W. Peixoto; C.D. de Santana; W.B. Wosiacki (2018). "A new species of Eigenmannia Jordan & Evermann (Teleostei: Gymnotiformes: Sternopygidae) from Río Ventuari, Venezuela". Zootaxa. 4422 (1): 132–140. doi:10.11646/zootaxa.4422.1.8. PMID 30313516.
  12. ^ Peixoto, L. & Waltz, B.T. (2017): A new species of the Eigenmannia trilineata species group from the río Orinoco basin, Venezuela (Gymnotiformes: Sternopygidae). Neotropical Ichthyology 15(1): 150-199. doi:10.1590/1982-0224-20150199
  13. ^ Peixoto, L.A.W.; W.M. Ohara (2019). "A New Species of Eigenmannia Jordan & Evermann (Gymnotiformes: Sternopygidae) from rio Tapajós, Brazil, with Discussion on Its Species Group and the Myology within Eigenmanniinae". PLOS ONE. 14 (8): e0220287. Bibcode:2019PLoSO..1420287P. doi:10.1371/journal.pone.0220287. PMC 6693845. PMID 31412067.
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