HomeFish encyclopediaRay-finned fishesLanternfishesLanternfishesSoft lanternfish Soft lanternfish (Diaphus mollis) Scientific name: Diaphus mollis T?ning, 1928 The Soft lanternfish (Diaphus mollis) is a marine fish of the family Myctophidae. BiologyMesopelagic. Oceanic, found between 300-600 m during the day and between 50-300 m at night, exhibiting size stratification with depth. Reach sexual maturity at a length of 3 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiaphus mollisFamilyMyctophidae (Lanternfishes)OrderMyctophiformes (Lanternfishes)ClassActinopterygii (Ray-finned fishes)Maximum length6.6Depth range50–600 m (164–1969 ft)EnvironmentMarine; bathypelagic; oceanodromous; depth range 50 - 600 mClimateDeep-waterDistributionEastern Atlantic: Morocco to Namibia. Western Atlantic: Canada to Argentina. Indian Ocean: 0?-34?S west of 70?E and 80?E, at 38?S, 100?E. Western Pacific: south of 20?S, west of 170?W and in Tasman Sea; centrally between 30?N and 7?S. Eastern Pacific: between 25?N and 15?S. South China Sea.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