HomeFish encyclopediaChimaerasChimaerasShortnose chimaeras or ratfishesSpookfish Spookfish (Hydrolagus mitsukurii) Scientific name: Hydrolagus mitsukurii Jordan & Snyder, 1904 Photo: http://opencage.info/pics.e/large_12059.asp The Spookfish (Hydrolagus mitsukurii) is a marine fish of the family Chimaeridae. Native range: Northwest Pacific, Japan, Philippines and South Korea. BiologyOviparous. Eggs are encased in horny shells.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHydrolagus mitsukuriiFamilyChimaeridae (Shortnose chimaeras or ratfishes)OrderChimaeriformes (Chimaeras)ClassHolocephali (Chimaeras)EnvironmentMarine; demersalClimateTemperateDistributionNorthwest Pacific: Japan, Philippines and South Korea.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