HomeFish encyclopediaRay-finned fishesPuffers and FilefishesPorcupinefishes (burrfishes)Pelagic porcupinefish Pelagic porcupinefish (Diodon eydouxii) Scientific name: Diodon eydouxii Brisout de Barneville, 1846 The Pelagic porcupinefish (Diodon eydouxii) is a marine fish of the family Diodontidae. Native range: Circumtropical. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 16-18; Anal spines: 0; Anal soft rays: 16 - 18. Back and sides blue, with small elongate black spots; fins with spots; dark gular band; belly silvery white.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiodon eydouxiiFamilyDiodontidae (Porcupinefishes (burrfishes))OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length27.0Depth range1 m (3 ft)EnvironmentMarine; pelagic-neritic; depth range 1 - ? mClimateTropicalDistributionCircumtropical.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, 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