HomeFish encyclopediaRay-finned fishesPerch-like fishGrunters or tigerperchesLong-nose sooty grunter Long-nose sooty grunter (Hephaestus epirrhinos) Scientific name: Hephaestus epirrhinos Vari & Hutchins, 1978 The Long-nose sooty grunter (Hephaestus epirrhinos) is a freshwater fish of the family Terapontidae. BiologyInhabit larger streams, occurring in rocky pools. Occur in small to large pools of slow-flowing streams and major river channels, usually over rocky substrates. Larger specimens occur in deeper water. Feed on crustaceans, insects and small fishes. Eggs are guarded and fanned by the male parent.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHephaestus epirrhinosFamilyTerapontidae (Grunters or tigerperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length42.0EnvironmentFreshwater; benthopelagic; non-migratoryClimateTropicalDistributionOceania: Drysdale River and Palmoondoera Creek (Morgan River), western Australia; also in the Carson River system north of the Kimberly region, northern coastal basin, Australia.Conservation status (IUCN)Lower Risk: near threatened (LR/nt)Threat to humansHarmlessUsesAquarium: 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