HomeFish encyclopediaRay-finned fishesGrinnersPearleyesBigfin pearleye Bigfin pearleye (Scopelarchus michaelsarsi) Scientific name: Scopelarchus michaelsarsi Koefoed, 1955 The Bigfin pearleye (Scopelarchus michaelsarsi) is a marine fish of the family Scopelarchidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 7-9; Anal spines: 0; Anal soft rays: 18 - 21. Medial face of pectorals with dense black pigment.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScopelarchus michaelsarsiFamilyScopelarchidae (Pearleyes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length10.2Depth range256–500 m (840–1640 ft)EnvironmentMarine; bathypelagic; oceanodromous; depth range 256 - 500 mClimateDeep-waterDistributionAtlantic, Indian and Pacific: in tropical and subtropical waters; widespread between 30?N to 0? in the eastern Atlantic, unknown from the Gulf of Guinea/Benguela Current area. Does not occur in the Mediterranean Sea and in the eastern Pacific east of 150?W.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026