HomeFish encyclopediaRay-finned fishesVelifers, Tube-eyes and RibbonfishesOpahSouthern opah Southern opah (Lampris immaculatus) Scientific name: Lampris immaculatus Gilchrist, 1904 The Southern opah (Lampris immaculatus) is a marine fish of the family Lampridae. Native range: Circumglobal in the southern hemisphere between 34?S and the Antarctic Polar Front. BiologyDorsal spines: 0; Dorsal soft rays: 55-56; Anal spines: 0; Anal soft rays: 36 - 40Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLampris immaculatusFamilyLampridae (Opah)OrderLampriformes (Velifers, Tube-eyes and Ribbonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length110Depth range50–485 m (164–1591 ft)EnvironmentMarine; pelagic-oceanic; depth range 50 - 485 mClimateTemperateDistributionCircumglobal in the southern hemisphere between 34?S and the Antarctic Polar Front.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026