HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsWestern-Australian flathead Western-Australian flathead (Platycephalus orbitalis) Scientific name: Platycephalus orbitalis Imamura & Knapp, 2009 The Western-Australian flathead (Platycephalus orbitalis) is a marine fish of the family Platycephalidae. Native range: Easrtern Indian Ocean, Western Australia. BiologyDorsal spines (total): 8 - 9; Dorsal soft rays (total): 13; Anal soft rays: 13. This species is distinguished by the scalloped margin of the interopercle; infraorbitals and preopercle with well developed skinny sensory tubes, mostly covering cheek region, except for anteroventral region; body and head with no distinct large spots and bands dorsally.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePlatycephalus orbitalisFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length33.3Depth range50–144 m (164–472 ft)EnvironmentMarine; benthopelagic; depth range 50 - 144 mClimateTropicalDistributionEasrtern Indian Ocean: Western AustraliaConservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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