HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesBrock's pipefish Brock's pipefish (Halicampus brocki) Scientific name: Halicampus brocki Herald, 1953 The Brock's pipefish (Halicampus brocki) is a marine fish of the family Syngnathidae. Native range: Western Pacific, Philippines and northwestern Australia to Queensland, north to the Yaeyama Islands; Marshall and Mariana Islands in Micronesia. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 21-23; Anal spines: 0; Anal soft rays: 4. Body rings 14 + 33-37. Slender species with branching tentacles on the head.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHalicampus brockiFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Depth range2–23 m (7–75 ft)EnvironmentMarine; reef-associated; depth range 2 - 23 mClimateTropicalDistributionWestern Pacific: Philippines and northwestern Australia to Queensland, north to the Yaeyama Islands; Marshall and Mariana Islands in Micronesia.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