HomeFish encyclopediaRay-finned fishesKnifefishesGhost knifefishesFreeman?s tube-snouted ghost knifefish Freeman?s tube-snouted ghost knifefish (Sternarchorhynchus freemani) Scientific name: Sternarchorhynchus freemani de Santana & Vari, 2010 The Freeman?s tube-snouted ghost knifefish (Sternarchorhynchus freemani) is a freshwater fish of the family Apteronotidae. Native range: South America, Guyana. BiologyFeeds on various types of aquatic larvae and annelids.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSternarchorhynchus freemaniFamilyApteronotidae (Ghost knifefishes)OrderGymnotiformes (Knifefishes)ClassActinopterygii (Ray-finned fishes)Maximum length20.1EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Guyana.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