HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesHardwicke's pipefish Hardwicke's pipefish (Solegnathus hardwickii) Scientific name: Solegnathus hardwickii Gray, 1830 The Hardwicke's pipefish (Solegnathus hardwickii) is a marine fish of the family Syngnathidae. Native range: Western Indian Ocean, Mauritius. Western Pacific: South China Sea north to southern Japan, south to northern Australia. BiologyFound in the continental shelf. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSolegnathus hardwickiiFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length40.0EnvironmentMarine; demersalClimateSubtropicalDistributionWestern Indian Ocean: Mauritius. Western Pacific: South China Sea north to southern Japan, south to northern Australia.Conservation status (IUCN)Data deficient (DD)Threat 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