HomeFish encyclopediaRay-finned fishesNeedle fishesNeedlefishesUrville's longtom Urville's longtom (Strongylura urvillii) Scientific name: Strongylura urvillii Valenciennes, 1846 The Urville's longtom (Strongylura urvillii) is a brackish-water fish of the family Belonidae. Native range: Western Pacific, waters of the East Indies, Philippines, and New Guinea east to the Solomon and Santa Cruz Islands. Reported from New Caledonia. BiologyCoastal species, sometimes entering brackish water. Feeds mainly on benthic invertebrates >2 mm. Oviparous. Eggs may be found attached to objects in the water by tendrils on the egg's surface.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStrongylura urvilliiFamilyBelonidae (Needlefishes)OrderBeloniformes (Needle fishes)ClassActinopterygii (Ray-finned fishes)Maximum length26.3Common length35.0EnvironmentMarine; brackish; pelagic-neriticClimateTropicalDistributionWestern Pacific: waters of the East Indies, Philippines, and New Guinea east to the Solomon and Santa Cruz Islands. Reported from New Caledonia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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