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Sternopygus
| Sternopygus | |
|---|---|
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| |
| Sternopygus aequilabiatus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gymnotiformes |
| Family: | Sternopygidae |
| Genus: | Sternopygus J. P. Müller & Troschel, 1849 |
Sternopygus is a genus of glass knifefishes found in tropical and subtropical South America (south to the Río de la Plata Basin), and Panama. They inhabit a wide range of freshwater habitats, from fast-flowing rivers to essentially static waters in floodplains, and shallow habitats to the bottom of deep rivers. S. macrurus will even visit brackish mangrove to feed.[1]
They are medium to large knifefish, with a maximum total length of 23–140 cm (0.8–4.6 ft) depending on the exact species.[1][2] They feed on invertebrates, small fish and fruits.[1] Most members of Gymnotiformes are nocturnal, but Sternopygus are both nocturnal[1] and diurnal.[3]
- ^ a b c d van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. pp. 344–345. ISBN 978-0691170749.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Sternopygus". FishBase. December 2017 version.
- ^ Galvis; Mojica; Duque; Castellanos; Sánchez-Duarte; Arce; Gutiérrez; Jiménez; Santos; Vejarano; Arbeláez; Prieto; Leiva (2006). Peces del medio Amazonas, Región de Leticia (in Spanish). Conservación Internacional. p. 358. doi:10.1590/S1679-62252006000400011. ISBN 978-958-97690-6-5.
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