HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSnailfishesPygmy snailfish Pygmy snailfish (Lipariscus nanus) Scientific name: Lipariscus nanus Gilbert, 1915 The Pygmy snailfish (Lipariscus nanus) is a marine fish of the family Liparidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 51-55; Anal spines: 0; Anal soft rays: 48 - 52; Vertebrae: 60 - 61. Pectoral fin moderately notched; caudal fin narrow. Branchiostegal rays 5. Opening of gills wholly above the pectoral fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLipariscus nanusFamilyLiparidae (Snailfishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length6.3Depth range0–910 m (0–2986 ft)EnvironmentMarine; benthopelagic; depth range 0 - 910 mClimateDeep-waterDistributionNorth Pacific: southern Sea of Okhotsk off Hokkaido, western Bering Sea off Commander Islands, eastern Bering Sea over continental slope, eastern Gulf of Alaska, and Pacific off British Columbia to Monterey Bay, California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026