Males are said to guard the eggs . Migrate to spawn in littoral waters of Bering Sea in December-June .
Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 7 - 9. Brownish gray with dark spots dorsally, muddy gray ventrally. Caudal fin rounded; pectoral fins large and broadly based; pelvic fins modified to form a clinging disc with a thickened margin on the ventral surface of the body . Skin naked without scales and tubercles. First dorsal fin completely embedded under the skin. Disk rudimentary in young, well developed in adults .: short and / or deep.
Behavioural data for Smooth lumpsucker is currently being reviewed.
Diet information for Smooth lumpsucker is currently being compiled.
Reproduction data for Smooth lumpsucker is currently being compiled.
Marine; benthopelagic; depth range 0 - 1700 m . Temperate; 66°N - North Pacific: Pusan, Korea north (outside the Sea of Okhotsk) to Providence Bay in the Anadyr Gulf of the Bering Sea, throughout the Aleutian Basin and islands, and southeast to Mathieson Channel, British Columbia, Canada.
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Aptocyclus glaber | Steindachner | 1881 | Synonym |
| Cyclopterichthys glaber | Steindachner | 1881 | Synonym |
| Cyclopterichthys ventricosus | Pallas | 1769 | Synonym |
| Cyclopterus stelleri | Pallas | 1814 | Synonym |
| Cyclopterus ventricosus | Pallas | 1769 | Synonym |
| Elephantichthys copeianus | Hubbs & Schultz | 1934 | Synonym |
| Pelagocyclus vitiazi | Lindberg & Legeza | 1955 | Synonym |
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .
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