Eigenmannia
Genus of fishes
From Wikipedia, the free encyclopedia
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.[2][3] 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.[3][4] Eigenmannia are often found near submerged roots, aquatic plants and floating meadows.[4][5]
| Eigenmannia | |
|---|---|
| |
| Eigenmannia virescens | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gymnotiformes |
| Family: | Sternopygidae |
| Subfamily: | Eigenmanniinae |
| Genus: | Eigenmannia D. S. Jordan & Evermann, 1896[1] |
| Type species | |
| Sternopygus humboldtii Steindachner, 1878[1] | |
| Synonyms[1] | |
| |
Depending on the exact species, they have a maximum total length of 14.3–49.6 cm (6–20 in).[2] They are nocturnal, and feed on small invertebrates such as aquatic insect larvae and zooplanktonic crustaceans.[4]
Species
As of May 2025[update], these are the recognized species in this genus:[2][6]
- Eigenmannia antonioi Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia besouro Peixoto & Wosiacki, 2016
- Eigenmannia bumba Dutra, Ramos & Menezes, 2022
- Eigenmannia cacuria Dutra, Ramos & Menezes, 2022
- Eigenmannia camposi Herrera-Collazos, Galindo-Cuervo, Maldonado-Ocampo & Rincón-Sandoval, 2020
- Eigenmannia catira Cardoso & Dutra, 2023
- Eigenmannia correntes Campos-da Paz & Queiroz 2017
- Eigenmannia desantanai Peixoto, Dutra & Wosiacki 2015
- Eigenmannia dutrai Peixoto, Pastana & Ballen, 2021
- Eigenmannia guairaca Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia guchereauae (Meunier, Jégu & Keith, 2014)
- Eigenmannia humboldtii (Steindachner, 1878)
- Eigenmannia limbata (Schreiner & Miranda Ribeiro, 1903)
- Eigenmannia loretana Waltz & Albert, 2018
- Eigenmannia macrops (Boulenger, 1897)
- Eigenmannia macuxi Dutra, Peixoto, Donin, de Santana & Menezes, 2024.
- Eigenmannia magoi Herrera-Collazos, Galindo-Cuervo, Maldonado-Ocampo & Rincón-Sandoval, 2020
- Eigenmannia matintapereira Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia meeki Dutra, de Santana & Wosiacki, 2017
- Eigenmannia microstoma (Reinhardt, 1852)
- Eigenmannia muirapinima Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia nigra Mago-Leccia, 1994
- Eigenmannia oradens Dutra, Peixoto, de Santana & Wosiacki, 2018
- Eigenmannia pavulagem Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia robsoni Dutra, Ramos & Menezes, 2022
- Eigenmannia sayona Peixoto & Waltz, 2017
- Eigenmannia sirius Peixoto & Ohara, 2019
- Eigenmannia trilineata López & Castello, 1966
- Eigenmannia vicentespelaea Triques, 1996
- Eigenmannia virescens (Valenciennes, 1836)
- Eigenmannia waiwai Peixoto, Dutra & Wosiacki, 2015
- Eigenmannia zenuensis Herrera-Collazos, Galindo-Cuervo, Maldonado-Ocampo & Rincón-Sandoval, 2020