HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesPrickly pipefish Prickly pipefish (Hypselognathus horridus) Scientific name: Hypselognathus horridus Dawson & Glover, 1982 The Prickly pipefish (Hypselognathus horridus) is a marine fish of the family Syngnathidae. Native range: Eastern Indian Ocean, known only from the Great Australian Bight. BiologyFound on the continental shelf. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Probably brooding at 15.4 cm SL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHypselognathus horridusFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length27.3Depth range40–55 m (131–180 ft)EnvironmentMarine; demersal; depth range 40 - 55 mClimateSubtropicalDistributionEastern Indian Ocean: known only from the Great Australian Bight.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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