HomeFish encyclopediaSharks and RaysGround sharksHoundsharksSharpfin houndshark Sharpfin houndshark (Triakis acutipinna) Scientific name: Triakis acutipinna Kato, 1968 The Sharpfin houndshark (Triakis acutipinna) is a marine fish of the family Triakidae. Native range: Eastern Pacific, known only from Ecuador. BiologyKnown only from two specimens. Ovoviviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTriakis acutipinnaFamilyTriakidae (Houndsharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length90.0EnvironmentMarine; demersalClimateTropicalDistributionEastern Pacific: known only from Ecuador.Conservation status (IUCN)Endangered (EN) (B1ab(v);C2a(ii))Threat to humansHarmlessUsesFisheries: of no interestResilienceLow, 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