HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsStonefishesBlackfin stonefish Blackfin stonefish (Pseudosynanceia melanostigma) Scientific name: Pseudosynanceia melanostigma Day, 1875 The Blackfin stonefish (Pseudosynanceia melanostigma) is a brackish-water fish of the family Synanceiidae. Native range: Western Indian Ocean. Species factsScientific namePseudosynanceia melanostigmaFamilySynanceiidae (Stonefishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length13.0EnvironmentMarine; brackish; demersalClimateSubtropicalDistributionWestern Indian Ocean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026