HomeFish encyclopediaRay-finned fishesSmeltsTubeshouldersPalebelly searsid Palebelly searsid (Barbantus curvifrons) Scientific name: Barbantus curvifrons Roule & Angel, 1931 The Palebelly searsid (Barbantus curvifrons) is a marine fish of the family Platytroctidae. Species factsScientific nameBarbantus curvifronsFamilyPlatytroctidae (Tubeshoulders)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length13.1Depth range0–4500 m (0–14764 ft)EnvironmentMarine; bathypelagic; depth range 0 - 4500 m, usually 1000 - ? mClimateDeep-waterDistributionEastern Atlantic: Bay of Biscay southward to Angola, including the Gulf of Guinea. Indian Ocean: tropical waters. Western Pacific: including the South China Sea. Eastern Pacific: Gulf of California and Chile.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