HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesSilvermouth siphonfish Silvermouth siphonfish (Apogon argyrogaster) Scientific name: Apogon argyrogaster Weber, 1909 The Silvermouth siphonfish (Apogon argyrogaster) is a marine fish of the family Apogonidae. Native range: Western Central Pacific, northern Australia, from the Exmouth Gulf, Western Australia to the Gulf of Carpentaria, Queensland. Recently reported from Indonesia. Species factsScientific nameApogon argyrogasterFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.0Depth range18–86 m (59–282 ft)EnvironmentMarine; demersal; depth range 18 - 86 mClimateTropicalDistributionWestern Central Pacific: northern Australia, from the Exmouth Gulf, Western Australia to the Gulf of Carpentaria, Queensland. Recently reported from Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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