HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsYank flathead Yank flathead (Platycephalus speculator) Scientific name: Platycephalus speculator Klunzinger, 1872 The Yank flathead (Platycephalus speculator) is a brackish-water fish of the family Platycephalidae. BiologyA shallow water species, recorded from surf beaches, estuaries and in bays.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePlatycephalus speculatorFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length90.0Depth range30 m (98 ft)EnvironmentMarine; brackish; demersal; depth range ? - 30 mClimateSubtropicalDistributionEastern Indian Ocean: known only from southern Australia, from Western Australia to Victoria and Tasmania. Large adults have been misidentified as Platycephalus fuscus, the common estuarine flathead of New South Wales and southern Queensland.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=1-2; tmax=12) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026