HomeFish encyclopediaRay-finned fishesPerch-like fishThreadfinsLong-limb threadfin Long-limb threadfin (Polydactylus longipes) Scientific name: Polydactylus longipes Motomura, Okamoto & Iwatsuki, 2001 The Long-limb threadfin (Polydactylus longipes) is a marine fish of the family Polynemidae. Native range: Western Central Pacific, known only from Mindanao, Philippines. BiologyDorsal spines (total): 9; Dorsal soft rays (total): 12; Anal spines: 3; Anal soft rays: 11; Vertebrae: 24. Grayish-black and oblong body. Pectoral fin with 13 unbranched rays, 6 pectoral filaments with upper 2 filaments extending beyond midpoint of caudal peduncle. Maxilla covered with scales.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePolydactylus longipesFamilyPolynemidae (Threadfins)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.9EnvironmentMarine; demersalClimateTropicalDistributionWestern Central Pacific: known only from Mindanao, Philippines.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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