HomeMarine aquarium fishOther marine fishHarlequin ghost pipefish Harlequin ghost pipefish (Solenostomus paradoxus) Scientific name: Solenostomus paradoxus Pallas, 1770 The Harlequin ghost pipefish (Solenostomus paradoxus) is a marine fish of the family Solenostomidae. Native range: Indo-West Pacific, Red Sea and East Africa to Fiji, north to southern Japan, south to southeast Australia and New Caledonia. Recently recorded from Tonga. BiologyDorsal spines: 5; Dorsal soft rays: 17-21; Anal spines: 0; Anal soft rays: 17 - 21; Vertebrae: 32 - 33. Post-pelagic are almost fully transparent and more slender compared to those established in the benthic phase. Variable in color from black to red and yellow, usually in a mix of bands and spots. Total body number of plates 31-35. Caudal fin truncate, rounded or lanceolate. Caudal fins of females modified into brood pouch.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSolenostomus paradoxusFamilySolenostomidae (Ghost pipefishes)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length12.0EnvironmentMarine; reef-associatedClimateTropicalDistributionIndo-West Pacific: Red Sea and East Africa to Fiji, north to southern Japan, south to southeast Australia and New Caledonia. Recently recorded from Tonga.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: public aquariums More other marine fishShoulderbar soldierfishMyripristis kunteeEyelight fishPhotoblepharon palpebratumSplitfin flashlightfishAnomalops katoptronHawaiian morwongCheilodactylus vittatusMarbled stargazerUranoscopus bicinctusFlowery flounderBothus mancusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026