HomeFish encyclopediaRay-finned fishesPuffers and FilefishesTriggerfishesLargescale triggerfish Largescale triggerfish (Canthidermis macrolepis) Scientific name: Canthidermis macrolepis Boulenger, 1888 The Largescale triggerfish (Canthidermis macrolepis) is a marine fish of the family Balistidae. Native range: Western Indian Ocean, Red Sea to the Gulf of Oman. BiologyDorsal spines (total): 3; Dorsal soft rays (total): 23-26; Anal spines: 0; Anal soft rays: 21 - 23. Caudal fin of adults double emarginate with produced lobes; juveniles with rounded caudal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCanthidermis macrolepisFamilyBalistidae (Triggerfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length60.0EnvironmentMarine; benthopelagicClimateTropicalDistributionWestern Indian Ocean: Red Sea to the Gulf of Oman.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, 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