HomeFish encyclopediaRay-finned fishesPuffers and FilefishesPuffersMasked puffer Masked puffer (Arothron diadematus) Scientific name: Arothron diadematus R?ppell, 1829 The Masked puffer (Arothron diadematus) is a marine fish of the family Tetraodontidae. Species factsScientific nameArothron diadematusFamilyTetraodontidae (Puffers)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Indian Ocean: Red Sea. Very closely related to and considered by some authors conspecific with the Indo-Pacific Arothron nigropunctatus (Bloch & Schneider).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