HomeFish encyclopediaChimaerasChimaerasShortnose chimaeras or ratfishesPhilippine chimaera Philippine chimaera (Hydrolagus deani) Scientific name: Hydrolagus deani Smith & Radcliffe, 1912 The Philippine chimaera (Hydrolagus deani) is a marine fish of the family Chimaeridae. Native range: Western Central Pacific, known only from the Philippines. BiologyRare and limited to the upper slope. Oviparous. Eggs are encased in horny shells. Biology and utilization unknown in the area.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHydrolagus deaniFamilyChimaeridae (Shortnose chimaeras or ratfishes)OrderChimaeriformes (Chimaeras)ClassHolocephali (Chimaeras)Maximum length67.0Depth range469–770 m (1539–2526 ft)EnvironmentMarine; bathydemersal; depth range 469 - 770 mClimateDeep-waterDistributionWestern Central Pacific: known only from the Philippines.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceLow, 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