HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsBlue-spotted flathead Blue-spotted flathead (Platycephalus caeruleopunctatus) Scientific name: Platycephalus caeruleopunctatus McCulloch, 1922 The Blue-spotted flathead (Platycephalus caeruleopunctatus) is a brackish-water fish of the family Platycephalidae. Native range: Southwest Pacific, Australia and Lord Howe Island. BiologyFound on the continental shelf, inshore and in estuaries.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePlatycephalus caeruleopunctatusFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Depth range40–100 m (131–328 ft)EnvironmentMarine; brackish; demersal; depth range 40 - 100 mClimateTemperateDistributionSouthwest Pacific: Australia and Lord Howe Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.18) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026