HomeFish encyclopediaRay-finned fishesSilversidesSilversidesKubuna hardyhead Kubuna hardyhead (Craterocephalus randi) Scientific name: Craterocephalus randi Nichols & Raven, 1934 The Kubuna hardyhead (Craterocephalus randi) is a freshwater fish of the family Atherinidae. BiologyInhabits clear rivers and small tributary streams over mud, sand and rocky bottomsSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCraterocephalus randiFamilyAtherinidae (Silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length8.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia and Oceania: central-southern New Guinea between the Kubuna River in Papua New Guinea and Lake Jamur in Irian Jaya, Indonesia; also Balimo Lagoon, and upper Fly-Strickland, Morehead and Bensbach in Papua New Guinea.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