HomeFish encyclopediaRay-finned fishesPerch-like fishThreefin blenniesClarke's triplefin Clarke's triplefin (Trinorfolkia clarkei) Scientific name: Trinorfolkia clarkei Morton, 1888 The Clarke's triplefin (Trinorfolkia clarkei) is a marine fish of the family Tripterygiidae. Native range: Eastern Indian Ocean, southern Australia, from Western Australia to Victoria and Tasmania. BiologyDorsal spines (total): 15 - 19; Dorsal soft rays (total): 10-12; Anal spines: 2; Anal soft rays: 19 - 21Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTrinorfolkia clarkeiFamilyTripterygiidae (Threefin blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.0Depth range0–30 m (0–98 ft)EnvironmentMarine; demersal; depth range 0 - 30 mClimateSubtropicalDistributionEastern Indian Ocean: southern Australia, from Western Australia to Victoria and Tasmania.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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