HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsRock ling Rock ling (Genypterus tigerinus) Scientific name: Genypterus tigerinus Klunzinger, 1872 The Rock ling (Genypterus tigerinus) is a brackish-water fish of the family Ophidiidae. Native range: Southwest Pacific, southern Australia and New Zealand. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 144-157; Anal spines: 0; Anal soft rays: 107 - 117. Head and body grey or whitish with large irregular dark blotches; large adults darker, almost black.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGenypterus tigerinusFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length120Depth range0–60 m (0–197 ft)EnvironmentMarine; brackish; demersal; depth range 0 - 60 mClimateSubtropicalDistributionSouthwest Pacific: southern Australia and New Zealand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceVery Low, minimum population doubling time more than 14 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