HomeFish encyclopediaSharks and RaysGround sharksHoundsharksSailback houndshark Sailback houndshark (Gogolia filewoodi) Scientific name: Gogolia filewoodi Compagno, 1973 The Sailback houndshark (Gogolia filewoodi) is a marine fish of the family Triakidae. Native range: Western Central Pacific, northern New Guinea. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGogolia filewoodiFamilyTriakidae (Houndsharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length74Depth range73 m (240 ft)EnvironmentMarine; demersal; depth range 73 - 73 mClimateDeep-waterDistributionWestern Central Pacific: northern New Guinea.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: minor commercialResilienceVery Low, minimum population doubling time more than 14 years (Fec=2) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026