HomeFish encyclopediaChimaerasChimaerasLongnose chimaerasSicklefin chimaera Sicklefin chimaera (Neoharriotta pinnata) Scientific name: Neoharriotta pinnata Schnakenbeck, 1931 Photo: http://mojebiologie.wordpress.com/trida-chordichthyes-paryby-rad-chimerotvari/ The Sicklefin chimaera (Neoharriotta pinnata) is a marine fish of the family Rhinochimaeridae. Native range: Eastern Atlantic, Cape Blanc, Mauritania to Walvis Bay, Namibia. Western Indian Ocean: Arabian Sea. BiologyA longnose chimaera with a narrow, slightly flattened snout, and blunt-edged, ridged tooth plates; pectoral fins short and broad, anal fin large and curved, and caudal fin with no tubercles on upper edge but with a short terminal filament. Dark brown in color.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeoharriotta pinnataFamilyRhinochimaeridae (Longnose chimaeras)OrderChimaeriformes (Chimaeras)ClassHolocephali (Chimaeras)Maximum length130Depth range150–500 m (492–1640 ft)EnvironmentMarine; bathydemersal; depth range 150 - 500 m, usually 200 - 470 mClimateDeep-waterDistributionEastern Atlantic: Cape Blanc, Mauritania to Walvis Bay, Namibia. Western Indian Ocean: Arabian Sea.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026