HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsTasselsnout flathead Tasselsnout flathead (Thysanophrys cirronasa) Scientific name: Thysanophrys cirronasa Richardson, 1848 The Tasselsnout flathead (Thysanophrys cirronasa) is a brackish-water fish of the family Platycephalidae. Native range: Indo-West Pacific, endemic to Australia. Species factsScientific nameThysanophrys cirronasaFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length38.0EnvironmentMarine; brackish; demersalClimateSubtropicalDistributionIndo-West Pacific: endemic to Australia.Conservation 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