HomeFish encyclopediaRay-finned fishesSmeltsTubeshouldersMultipore searsid Multipore searsid (Normichthys operosus) Scientific name: Normichthys operosus Parr, 1951 The Multipore searsid (Normichthys operosus) is a marine fish of the family Platytroctidae. Species factsScientific nameNormichthys operosusFamilyPlatytroctidae (Tubeshoulders)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length16.4Depth range1000 m (3281 ft)EnvironmentMarine; bathypelagic; depth range ? - 1000 mClimateDeep-waterDistributionEastern Atlantic: Iceland and western part of British Isles to Portugal including Azores Island (northern and western boundaries apparently following the 1,000 m isotherm for 4?C and the southern boundary for 5?C); and from the Canary Islands to Senegal, Gulf of Guinea and Angola.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026