{{Short description|Genus of fishes}} {{Automatic taxobox | taxon = Sternarchogiton | authority = C. H. Eigenmann, 1905<ref name = "Cof family">{{Cof family|family=Apteronotidae|access-date=26 May 2025}}</ref> | type_species = Sternarchus nattereri | type_species_authority = Steindachner, 1868<ref name = "Cof family"/> | synonyms = Oedemognathus Myers, 1936 | synonyms_ref = <ref name = "Cof family"/> }}
'''''Sternarchogiton''''' is a genus of weakly electric knifefish in the family Apteronotidae,<ref name=fishbase>{{FishBase genus | genus = Sternarchogiton | month = January | year = 2024}}</ref> all living in the main channel of large rivers in the Amazon and Orinoco basins in South America.<ref name=Sleen2017>{{cite book | editor1=van der Sleen, P. | editor2=J.S. Albert | year=2017 | title=Field Guide to the Fishes of the Amazon, Orinoco, and Guianas | publisher=Princeton University Press | page=329 | isbn=978-0691170749 }}</ref>
They have a blunt snout and depending on the exact species reach up to {{convert|20-40|cm|in|abbr=on|0}} in total length.<ref name=Sleen2017/> 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.<ref name=Sleen2017/><ref>{{FishBase family | family = Apteronotidae | month = October | year = 2017}}</ref> ''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''.<ref name="santana">{{cite journal |doi=10.1643/0045-8511(2007)7[387:ROTDEF]2.0.CO;2 |title=Revision of The Deep-channel Electric Fish Genus ''Sternarchogiton'' (Gymnotiformes: Apteronotidae) |first2=William G. R. |last2=Crampton |author=de Santana, C.D. |journal=Copeia |year=2007 |volume=2007 |issue=2 |pages=387–402|s2cid=86035117 }}</ref>
==Species== ''Sternarchogiton'' contains the following valid species:<ref name = "Cof genus">{{Cof genus|genus=Sternarchogiton|access-date=26 May 2025}}</ref>
* ''Sternarchogiton labiatus'' <small>de Santana & Crampton, 2007</small> * ''Sternarchogiton nattereri'' <small>(Steindachner, 1868)</small> * ''Sternarchogiton porcinum'' <small>C. H. Eigenmann & W. R. Allen, 1942</small> * ''Sternarchogiton zuanoni'' <small>de Santana & Vari, 2010</small>
==References== {{Reflist}}
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Category:Apteronotidae Category:Sternarchogiton Category:Fish of South America Category:Freshwater fish genera Category:Taxa named by Carl H. Eigenmann