HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesPitgum lanternfish Pitgum lanternfish (Opostomias mitsuii) Scientific name: Opostomias mitsuii Imai, 1941 The Pitgum lanternfish (Opostomias mitsuii) is a marine fish of the family Stomiidae. Native range: Northeast Pacific, southern California, 32-34?N, to British Columbia, 48?30'-55?N. Northwest Pacific: Japan. Species factsScientific nameOpostomias mitsuiiFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length36.0Depth range60–500 m (197–1640 ft)EnvironmentMarine; bathypelagic; depth range 60 - 500 mClimateDeep-waterDistributionNortheast Pacific: southern California, 32-34?N, to British Columbia, 48?30'-55?N. Northwest Pacific: Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026