HomeFish encyclopediaRay-finned fishesKnifefishesGhost knifefishesMareike?s tube-snouted ghost knifefish Mareike?s tube-snouted ghost knifefish (Sternarchorhynchus mareikeae) Scientific name: Sternarchorhynchus mareikeae de Santana & Vari, 2010 The Mareike?s tube-snouted ghost knifefish (Sternarchorhynchus mareikeae) is a freshwater fish of the family Apteronotidae. Native range: South America, Brazil (known only from its type locality). Species factsScientific nameSternarchorhynchus mareikeaeFamilyApteronotidae (Ghost knifefishes)OrderGymnotiformes (Knifefishes)ClassActinopterygii (Ray-finned fishes)Maximum length19.2EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Brazil (known only from its type locality).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