HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesDwarf seahorse Dwarf seahorse (Hippocampus zosterae) Scientific name: Hippocampus zosterae Jordan & Gilbert, 1882 The Dwarf seahorse (Hippocampus zosterae) is a marine fish of the family Syngnathidae. BiologyShallow grass flats, especially in association with Zostera and other seagrass; periodically found in floating vegetation. Diurnal, males more site faithful than females. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Specimens lose their skin filaments in aquaria. Has been reared in captivity.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHippocampus zosteraeFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length5.0Depth range2 m (7 ft)EnvironmentMarine; demersal; non-migratory; depth range ? - 2 mClimateSubtropicalDistributionWestern Atlantic: Bermuda, southern Florida (USA), Bahamas and the entire Gulf of Mexico. International trade is monitored through a licensing system (CITES II, since 5.15.04).Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=0.4; tmax=1; assuming Fec=100 (approx. 3 generations/year)) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026