HomeFreshwater aquarium fishOther freshwater fishEstuarine stonefish Estuarine stonefish (Synanceia horrida) Scientific name: Synanceia horrida Linnaeus, 1766 The Estuarine stonefish (Synanceia horrida) is a brackish-water fish of the family Synanceiidae. Native range: Indo-West Pacific, India to China, Philippines, Papua New Guinea and Australia. Reported from Vanuatu. BiologyA drab species, usually brownish grey to reddish brown with a pattern of fine lines across the caudal fin. Eyes well elevated compared to the reef stonefish S. verrucosa.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSynanceia horridaFamilySynanceiidae (Stonefishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length60.0EnvironmentMarine; brackish; reef-associatedClimateTropicalDistributionIndo-West Pacific: India to China, Philippines, Papua New Guinea and Australia. Reported from Vanuatu.Conservation status (IUCN)Not EvaluatedThreat to humansVenomousUsesAquarium: public aquariums More other freshwater fishSouth American lungfishLepidosiren paradoxaLined soleAchirus lineatusPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSee all other freshwater fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026