HomeFish encyclopediaRay-finned fishesKnifefishesGhost knifefishesVillasboas? tube-snouted ghost knifefish Villasboas? tube-snouted ghost knifefish (Sternarchorhynchus villasboasi) Scientific name: Sternarchorhynchus villasboasi de Santana & Vari, 2010 The Villasboas? tube-snouted ghost knifefish (Sternarchorhynchus villasboasi) is a freshwater fish of the family Apteronotidae. Native range: South America, Brazil. BiologyLittle information is available about the type locality other than that it was a rapids area in the Rio Xingu, Brazil.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSternarchorhynchus villasboasiFamilyApteronotidae (Ghost knifefishes)OrderGymnotiformes (Knifefishes)ClassActinopterygii (Ray-finned fishes)Maximum length13.6EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026