HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersLongsnout flounder Longsnout flounder (Ammotretis rostratus) Scientific name: Ammotretis rostratus G?nther, 1862 The Longsnout flounder (Ammotretis rostratus) is a brackish-water fish of the family Pleuronectidae. Native range: Eastern Indian Ocean, southern Australia, from southwestern Australia to New South Wales. BiologyDorsal soft rays (total): 76-86; Anal soft rays: 51 - 56. Body deep (55-60% SL). Snout extended into a hook-like process projecting downwards in front of small, oblique mouth. Scales ctenoid, very small, rather firmly attached on both sides. Pectoral fin rays on right side 11-13, left 9-12. Pelvic fin rays on right side 7, left 4. Caudal fin rays 14.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmmotretis rostratusFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range1–80 m (3–262 ft)EnvironmentMarine; brackish; demersal; depth range 1 - 80 mClimateTemperateDistributionEastern Indian Ocean: southern Australia, from southwestern Australia to New South Wales.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, 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