HomeFish encyclopediaRay-finned fishesPerch-like fishBillfishesTropical sawshark Tropical sawshark (Pristiophorus delicatus) Scientific name: Pristiophorus delicatus Yearsley, Last & White, 2008 The Tropical sawshark (Pristiophorus delicatus) is a marine fish of the family Istiophoridae. Native range: Western Pacific, Australia. BiologyThis small species possess the following characters: nostril to barbel origin is 3.2-3.7 times mouth to nostril; prenasal length 1.7-1.8 times the prebarbel length; preoral length 2.1-2.4 times the interdorsal space; pectoral anterior margin 1.2-1.5 times the dorsal-caudal space; dorsal caudal margin 4.4-5.0 times caudal fin depth; width of mouth 2.7-3.7 times the length spiracle; color dorsally pale to medium yellowish brown, ventrally pale whitish to yellowish; 49-55 monospondylous centra; 50-54 precaudal diplospondylous centra; 149-156 total vertebral centra.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePristiophorus delicatusFamilyIstiophoridae (Billfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length62.5Depth range246–405 m (807–1329 ft)EnvironmentMarine; pelagic-oceanic; depth range 246 - 405 mClimateTropicalDistributionWestern Pacific: Australia.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026