HomeFish encyclopediaRay-finned fishesBony tonguesElephantfishesTana-churchill Tana-churchill (Petrocephalus catostoma tanensis) Scientific name: Petrocephalus catostoma tanensis Whitehead & Greenwood, 1959 The Tana-churchill (Petrocephalus catostoma tanensis) is a freshwater fish of the family Mormyridae. Native range: Africa, Tana River, Kenya. Species factsScientific namePetrocephalus catostoma tanensisFamilyMormyridae (Elephantfishes)OrderOsteoglossiformes (Bony tongues)ClassActinopterygii (Ray-finned fishes)Maximum length15.2EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Tana River, Kenya.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026