HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesR?union seahorse R?union seahorse (Hippocampus borboniensis) Scientific name: Hippocampus borboniensis Dum?ril, 1870 The R?union seahorse (Hippocampus borboniensis) is a marine fish of the family Syngnathidae. BiologyLength type is height (=TL - head length). Found in seagrass beds. 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 nameHippocampus borboniensisFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length14.0Depth range60 m (197 ft)EnvironmentMarine; demersal; non-migratory; depth range ? - 60 mClimateTropicalDistributionWestern Indian Ocean: Mauritius, Reunion, and east coast of southern Africa. Conservation status: vulnerable. International trade is monitored through a licensing system (CITES II, since 5.15.04) and a minimum size of 10 cm applies.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of potential interestResilienceHigh, 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