HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesRobust pipehorse Robust pipehorse (Solegnathus robustus) Scientific name: Solegnathus robustus McCulloch, 1911 The Robust pipehorse (Solegnathus robustus) is a marine fish of the family Syngnathidae. Native range: Eastern Indian Ocean, endemic to southern Australia. BiologyOccurs in coastal waters. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Males known to brood at 31.4 cm TL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSolegnathus robustusFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length35.0Depth range42–68 m (138–223 ft)EnvironmentMarine; demersal; depth range 42 - 68 mClimateTemperateDistributionEastern Indian Ocean: endemic to southern 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