HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesLightfishesIntermediate lightfish Intermediate lightfish (Ichthyococcus intermedius) Scientific name: Ichthyococcus intermedius Mukhacheva, 1980 The Intermediate lightfish (Ichthyococcus intermedius) is a marine fish of the family Phosichthyidae. Native range: Pacific Ocean, Australia and New Guinea and the Caroline Islands and Hawaii. BiologyMesopelagic species. Minimum depth from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameIchthyococcus intermediusFamilyPhosichthyidae (Lightfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length5.3Depth range0–590 m (0–1936 ft)EnvironmentMarine; pelagic-oceanic; depth range 0 - 590 mClimateTropicalDistributionPacific Ocean: Australia and New Guinea and the Caroline Islands and Hawaii.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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