Genus of fishes
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
These are the currently recognized species in this genus:[1][5]
- Eigenmannia antonioi L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia besouro L. A. W. Peixoto & Wosiacki, 2016[6]
- Eigenmannia bumba Dutra, Ramos & Menezes, 2022[7]
- Eigenmannia cacuria Dutra, Ramos & Menezes, 2022[7]
- Eigenmannia correntes Campos-da-Paz & Queiroz, 2017[8]
- Eigenmannia desantanai L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia dutrai L. A. W. Peixoto, M. N. L. PASTANA, & Ballen, 2020[9]
- Eigenmannia goajira L. P. Schultz, 1949[10]
- Eigenmannia guairaca L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia humboldtii (Steindachner, 1878)
- Eigenmannia limbata (Schreiner & A. Miranda-Ribeiro, 1903)
- Eigenmannia loretana Waltz & Albert, 2018[11]
- Eigenmannia macrops (Boulenger, 1897)
- Eigenmannia matintapereira L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia meeki Dutra, de Santana & Wosiacki, 2017[12]
- Eigenmannia microstoma (J. T. Reinhardt, 1852)
- Eigenmannia muirapinima L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia nigra Mago-Leccia, 1994
- Eigenmannia oradens Dutra, L. A. W. Peixoto, de Santana & Wosiacki, 2018[13]
- Eigenmannia pavulagem L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]
- Eigenmannia robsoni Dutra, Ramos & Menezes, 2022[7]
- Eigenmannia sayona L. A. W. Peixoto & Waltz, 2017[14]
- Eigenmannia sirius L. A. W. Peixoto & Waltz, 2019[15]
- Eigenmannia trilineata R. B. López & Castello, 1966
- Eigenmannia vicentespelaea Triques, 1996
- Eigenmannia virescens (Valenciennes, 1836)
- Eigenmannia waiwai L. A. W. Peixoto, Dutra & Wosiacki, 2015[2]