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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Gymnotiformes

Familia: Apteronotidae
Genus: Sternarchogiton
Species: S. porcinum – S. sattereri – S. zuanoni
Name

Sternarchogiton Eigenmann, 1905: 164.

Type species: Sternarchus nattereri Steindachner, 1868. Type by original designation.
Synonyms

Oedemognathus Myers, 1936

References

Eigenmann, C. H. & Ward, D. P. (1905): The Gymnotidae. Proceedings of the Washington Academy of Science. 7: 159–188, Pls. 7-11.
Myers, G. S. (1936): A new genus of gymnotid eels from the Peruvian Amazon. Proceedings of the Biological Society of Washington, 49: 115–116.
Santana de, C.D. & R.P. Vari, 2010: New Rheophilic Species of Electric Knifefish from the Rapids and Waterfalls of the Lower Rio Xingu, Brazil (Gymnotiformes: Apteronotidae). Copeia 2010 (1): 160–164. DOI: 10.1643/CI-09-068. Abstract: [1].

Sternarchogiton is a genus of weakly electric knifefish in the family Apteronotidae, with four known species,[1] all living in the main channel of large rivers in the Amazon and Orinoco basins in South America.[2]

They have a blunt snout and depending on the exact species reach up to 20–40 cm (8–16 in) in total length.[2] The adult males of S. nattereri have teeth on the outside of the jaw, believed to be used in fights with other males, and it was formerly placed in its own genus because of this unique feature.[2][3] Sternarchogiton are distinguished from other apteronotid genera by details of the skull and the broad descending blades of the pterygiophores in the anal fin. They are related to the genera Adontosternarchus and Porotergus.[4]
Species

There are four recognized species:[1]

Sternarchogiton labiatus de Santana & Crampton, 2007
Sternarchogiton nattereri (Steindachner, 1868)
Sternarchogiton porcinum C. H. Eigenmann & W. R. Allen, 1942
Sternarchogiton zuanoni de Santana & Vari, 2010

References

Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Sternarchogiton in FishBase. October 2017 version.
van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. p. 329. ISBN 978-0691170749.
Froese, Rainer, and Daniel Pauly, eds. (2017). "Apteronotidae" in FishBase. October 2017 version.
de Santana, C.D.; Crampton, William G. R. (2007). "Revision of The Deep-channel Electric Fish Genus Sternarchogiton (Gymnotiformes: Apteronotidae)". Copeia. 2007 (2): 387–402. doi:10.1643/0045-8511(2007)7[387:ROTDEF]2.0.CO;2.

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