HomeFish encyclopediaRay-finned fishesLanternfishesLanternfishesLantern fish Lantern fish (Nannobrachium achirus) Scientific name: Nannobrachium achirus Andriashev, 1962 The Lantern fish (Nannobrachium achirus) is a marine fish of the family Myctophidae. BiologyOceanic and mesopelagic. Usually found below 500 m at night but shallower in upwelling regions.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNannobrachium achirusFamilyMyctophidae (Lanternfishes)OrderMyctophiformes (Lanternfishes)ClassActinopterygii (Ray-finned fishes)Maximum length16.2EnvironmentMarine; bathypelagic; oceanodromousClimateDeep-waterDistributionCircumglobal from the Subtropical Convergence to south of the Antarctic Polar Front at Weddell-Scotia confluence and northern reaches of Ross Sea, and extending northwards to 21?S in meridional currents.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