Hardenburg's burrfish (Cyclichthys hardenbergi)

Scientific name: Cyclichthys hardenbergi de Beaufort, 1939

The Hardenburg's burrfish (Cyclichthys hardenbergi) is a marine fish of the family Diodontidae. Native range: Western Pacific, southern New Guinea and tropical Australia east of Cape York.

Biology

few black spots on body, those present at base of spines dorsally and dorsolaterally. Dorsal, anal, and caudal fins with dusky distal margin. Only 2 spines over eye. 2 spines between nostrils, 1 immediately adjacent to each nostril (Ref 9680).

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Cyclichthys hardenbergi
Family: Diodontidae (Porcupinefishes (burrfishes))
Order: Tetraodontiformes (Puffers and Filefishes)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 25.0
Depth range: 100 m (328 ft)
Environment: Marine; demersal; depth range ? - 100 m
Climate: Tropical
Distribution: Western Pacific: southern New Guinea and tropical Australia east of Cape York.
Conservation status (IUCN): Not Evaluated
Threat to humans: Venomous
Uses: Fisheries: of no interest
Resilience: Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026