HomeFish encyclopediaRay-finned fishesLanternfishesLanternfishesFragile lantern fish Fragile lantern fish (Diaphus fragilis) Scientific name: Diaphus fragilis T?ning, 1928 The Fragile lantern fish (Diaphus fragilis) is a marine fish of the family Myctophidae. BiologyMesopelagic. Oceanic species found at 520-600 m by day and at 15-125 m by night.Specimens reach sexual maturity at a length of 7,3 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiaphus fragilisFamilyMyctophidae (Lanternfishes)OrderMyctophiformes (Lanternfishes)ClassActinopterygii (Ray-finned fishes)Maximum length9.9Depth range15–1313 m (49–4308 ft)EnvironmentMarine; bathypelagic; oceanodromous; depth range 15 - 1313 mClimateDeep-waterDistributionTropical areas in all three oceans, with western boundary current extensions: Atlantic: to Slope Water edge and to 26?S. Indian Ocean: Agulhas Current to about 36?S. Western Pacific: in Kuroshio to 35?N and East Australian Current to about 34?S. South China Sea.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