HomeMarine aquarium fishTriggers, puffers & boxfishLongspined porcupinefish Longspined porcupinefish (Diodon holocanthus) Scientific name: Diodon holocanthus Linnaeus, 1758 The Longspined porcupinefish (Diodon holocanthus) is a marine fish of the family Diodontidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 13-15; Anal spines: 0; Anal soft rays: 13 - 15. Pelagic juveniles with spots, particularly prominent on belly; adults with dark blotches across back and spots between the blotches; fins without spots. 14 to 16 spines in an approximate row between snout and origin of dorsal fin; with a large brown bar above and below each eye; a broad transverse brown bar on occipital region of head.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiodon holocanthusFamilyDiodontidae (Porcupinefishes (burrfishes))OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Common length15.0Depth range2–200 m (7–656 ft)EnvironmentMarine; reef-associated; depth range 2 - 200 m, usually 2 - 35 mClimateSubtropicalDistributionCircumtropical in distribution. Western Atlantic: Canada, Florida, USA and the Bahamas to Brazil. Eastern Atlantic: 30?N to 23?S; also South Africa. Western Indian Ocean: southern Red Sea to Madagascar, Reunion and Mauritius. Pacific Ocean: southern Japan south to Lord Howe Island and east to the Hawaiian and Easter islands. Also from southern California, USA to Colombia and the Galapagos Islands.Conservation status (IUCN)Not EvaluatedThreat to humansReports of ciguatera poisoningUsesFisheries: minor commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusPrickly toadfishContusus richeiYellow-spotted triggerfishPseudobalistes fuscusSilver-cheeked toadfishLagocephalus sceleratusFantail filefishPervagor spilosomaRedtail filefishPervagor melanocephalusSee all triggers, puffers & boxfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026