HomeFish encyclopediaRay-finned fishesPuffers and FilefishesPorcupinefishes (burrfishes)Slender-spined porcupine fish Slender-spined porcupine fish (Diodon nicthemerus) Scientific name: Diodon nicthemerus Cuvier, 1818 The Slender-spined porcupine fish (Diodon nicthemerus) is a marine fish of the family Diodontidae. Native range: Indo-Pacific, Southern Australia from central New South Wales to a similar latitude in Western Australia. BiologyFound commonly in shallow bays. Nocturnal. Occurs in small aggregations.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiodon nicthemerusFamilyDiodontidae (Porcupinefishes (burrfishes))OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range1–70 m (3–230 ft)EnvironmentMarine; reef-associated; depth range 1 - 70 mClimateTemperateDistributionIndo-Pacific: Southern Australia from central New South Wales to a similar latitude in Western Australia.Conservation status (IUCN)Not EvaluatedThreat to humansPoisonous to eatUsesFisheries: of no interestResilienceMedium, 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