HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesDeepbody pipefish Deepbody pipefish (Kaupus costatus) Scientific name: Kaupus costatus Waite & Hale, 1921 The Deepbody pipefish (Kaupus costatus) is a marine fish of the family Syngnathidae. Native range: Eastern Indian Ocean, southern Australia. BiologyFound over seagrass and algal beds. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Males may be brooding at 8.65 cm SL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameKaupus costatusFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length12.9Depth range0–50 m (0–164 ft)EnvironmentMarine; demersal; depth range 0 - 50 mClimateSubtropicalDistributionEastern Indian Ocean: southern Australia.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