HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesRock pipefish Rock pipefish (Phoxocampus belcheri) Scientific name: Phoxocampus belcheri Kaup, 1856 The Rock pipefish (Phoxocampus belcheri) is a marine fish of the family Syngnathidae. Native range: Indo-West Pacific, Red Sea and East Africa, eastward to Japan and Fiji Islands. Recently recorded from Tonga. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 20-24; Anal spines: 0; Anal soft rays: 3 - 4Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePhoxocampus belcheriFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length7.2Depth range0–25 m (0–82 ft)EnvironmentMarine; reef-associated; depth range 0 - 25 mClimateTropicalDistributionIndo-West Pacific: Red Sea and East Africa, eastward to Japan and Fiji Islands. Recently recorded from Tonga.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