HomeFish encyclopediaRay-finned fishesLanternfishesLanternfishesSpothead lantern fish Spothead lantern fish (Diaphus metopoclampus) Scientific name: Diaphus metopoclampus Cocco, 1829 The Spothead lantern fish (Diaphus metopoclampus) is a marine fish of the family Myctophidae. BiologyOceanic and mesopelagic, found between 375-850 m during the day and between 90-850 m at night. Benthopelagic. Depth range from 518-1085 m in the eastern Ionian Sea. Reach sexual maturity at a length of 4,8 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiaphus metopoclampusFamilyMyctophidae (Lanternfishes)OrderMyctophiformes (Lanternfishes)ClassActinopterygii (Ray-finned fishes)Maximum length7.5Depth range90–1085 m (295–3560 ft)EnvironmentMarine; bathypelagic; non-migratory; depth range 90 - 1085 mClimateDeep-waterDistributionEastern Atlantic: British Isles to Mauritania including western Mediterranean, but isolated specimens to Liberia and South Africa. Western Atlantic: USA to 22?N, and from Brazil to Argentina. Western Indian Ocean: between 0? and 30?S. Western Pacific: between 6?N and 39?N, New South Wales, Australia and New Zealand.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