HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSnailfishesTadpole snailfish Tadpole snailfish (Nectoliparis pelagicus) Scientific name: Nectoliparis pelagicus Gilbert & Burke, 1912 The Tadpole snailfish (Nectoliparis pelagicus) is a marine fish of the family Liparidae. Native range: North Pacific, Sea of Okhotsk Pacific southeast of Hokkaido to southeastern Kamchatka and Bering Sea, Alaska to California. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 53; Anal spines: 0; Anal soft rays: 48. Caudal appears truncate but may be pointed.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNectoliparis pelagicusFamilyLiparidae (Snailfishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length6.5Depth range0–3383 m (0–11099 ft)EnvironmentMarine; bathypelagic; depth range 0 - 3383 m, usually 0 - 238 mClimateTemperateDistributionNorth Pacific: Sea of Okhotsk Pacific southeast of Hokkaido to southeastern Kamchatka and Bering Sea, Alaska to California.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