HomeFish encyclopediaSharks and RaysGround sharksHoundsharksDeepwater sicklefin hound shark Deepwater sicklefin hound shark (Hemitriakis abdita) Scientific name: Hemitriakis abdita Compagno & Stevens, 1993 The Deepwater sicklefin hound shark (Hemitriakis abdita) is a marine fish of the family Triakidae. Native range: Western Central Pacific, Coral Sea off Queensland, Australia and from New Caledonia. BiologyHolotype collected from a depth of 225 m. Ovoviviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHemitriakis abditaFamilyTriakidae (Houndsharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Depth range225 m (738 ft)EnvironmentMarine; bathydemersal; depth range 225 - 225 mClimateDeep-waterDistributionWestern Central Pacific: Coral Sea off Queensland, Australia and from New Caledonia.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Fec assumed to be SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026