Pygmy snailfish (Lipariscus nanus), first described by Gilbert, 1915 is a small fish. Adults typically reach 6.30 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 910 metres. It occurs in Deep-water waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
Dorsal 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 .: elongated.
Behavioural data for Pygmy snailfish is currently being reviewed.
Marine; benthopelagic; depth range 0 - 910 m . Deep-water North 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.
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