HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesQueensland seahorse Queensland seahorse (Hippocampus queenslandicus) Scientific name: Hippocampus queenslandicus Horne, 2001 The Queensland seahorse (Hippocampus queenslandicus) is a marine fish of the family Syngnathidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 17-18; Anal spines: 0Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHippocampus queenslandicusFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length11.6Depth range20–63 m (66–207 ft)EnvironmentMarine; reef-associated; depth range 20 - 63 mClimateTropicalDistributionWestern Central Pacific: Queensland, Australia. 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)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