HomeFish encyclopediaRay-finned fishesPerch-like fishGrunters or tigerperchesMountain grunter Mountain grunter (Hephaestus habbemai) Scientific name: Hephaestus habbemai Weber, 1910 The Mountain grunter (Hephaestus habbemai) is a freshwater fish of the family Terapontidae. Native range: Asia and Oceania, New Guinea. BiologyDorsal spines (total): 12 - 13; Dorsal soft rays (total): 11-13; Anal spines: 3; Anal soft rays: 10 - 11Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHephaestus habbemaiFamilyTerapontidae (Grunters or tigerperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentFreshwater; demersalClimateTropicalDistributionAsia and Oceania: New Guinea.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