Eigenmannia Explained

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] 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.^{[1] [2]} Eigenmannia are often found near submerged roots, aquatic plants and floating meadows.^{[2] [3]}

Depending on the exact species, they have a maximum total length of NaNabbr=onNaNabbr=on. They are nocturnal, and feed on small invertebrates such as aquatic insect larvae and zooplanktonic crustaceans.^[2]

Species

, these are the recognized species in this genus:

Notes and References

1. 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.
2. Book: van der Sleen, P. . J.S. Albert . 2017 . Field Guide to the Fishes of the Amazon, Orinoco, and Guianas . Princeton University Press . 343–344 . 978-0691170749 .
3. 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 . 10.1590/S1679-62252013000100010 . free .