HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesShortpouch pygmy pipehorse Shortpouch pygmy pipehorse (Acentronura tentaculata) Scientific name: Acentronura tentaculata G?nther, 1870 The Shortpouch pygmy pipehorse (Acentronura tentaculata) is a marine fish of the family Syngnathidae. Native range: Indo-West Pacific, northern Red Sea and Mozambique to Torres Straits and Queensland, Australia. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 16-17; Anal spines: 0; Anal soft rays: 4. Brown in color, dermal flaps blackish. Caudal absent in sub adults and adults. Females are slender and pipefish-like, but larger males are more seahorse-like.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcentronura tentaculataFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length6.3Depth range1–20 m (3–66 ft)EnvironmentMarine; reef-associated; depth range 1 - 20 mClimateTropicalDistributionIndo-West Pacific: northern Red Sea and Mozambique to Torres Straits and Queensland, Australia.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