HomeFish encyclopediaRay-finned fishesSilversidesSilversidesMcCulloch's hardyhead McCulloch's hardyhead (Atherion maccullochi) Scientific name: Atherion maccullochi Jordan & Hubbs, 1919 The McCulloch's hardyhead (Atherion maccullochi) is a marine fish of the family Atherinidae. Native range: Southwest Pacific, Australia. Species factsScientific nameAtherion maccullochiFamilyAtherinidae (Silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; reef-associatedClimateSubtropicalDistributionSouthwest Pacific: Australia.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