HomeFish encyclopediaRay-finned fishesSmeltsPencil smeltsBluethroat argentine Bluethroat argentine (Nansenia candida) Scientific name: Nansenia candida Cohen, 1958 The Bluethroat argentine (Nansenia candida) is a marine fish of the family Microstomatidae. Native range: Northeast Pacific, Gulf of Alaska to southern California, USA; including Japan. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 9-12; Anal spines: 0; Anal soft rays: 8 - 10; Vertebrae: 44 - 47. Adipose fin small and sickle-shaped; pectorals small. Preserved specimens dark brown on body and head, lighter below, bluish on nape, preopercle, and throat, fins clear, eye silvery. Branchiostegal rays 3. Pyloric caeca 7-9.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNansenia candidaFamilyMicrostomatidae (Pencil smelts)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length22.2Depth range0–1000 m (0–3281 ft)EnvironmentMarine; bathypelagic; depth range 0 - 1000 mClimateDeep-waterDistributionNortheast Pacific: Gulf of Alaska to southern California, USA; including Japan.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