Lanassa nordenskioldi Malmgren, 1866

Synonyms:
No synonyms.

Distinguishing characteristics
No branchiae.
Uncini from the 2nd chaetigerous segment.
Notochaetae on 15 segments.

Species description
Body long, thorax firm and somewhat dorsoventrally flattened, abdomen softer and tapering. Tentacles numerous, moderately long. Upper lip rounded trapezoidal. 15 thoracic segments with capillary chaetae (from segment 4). Uncinigerous tori from segment 5, moderately long on thorax. Uncini in double rows in segments 11 – 18. Pygidium without appendages. Tube – a thin layer of secrection incrusted with mud and fine sand.

Size
Up to 60 mm long.

Color

Habitat
Mixed bottoms, mud or clay with sand.
15-100 m.

Mobility
Sedentary.

Feeding
Surface deposit feeder.
Facultative suspension feeder.

Life cycle

Distribution
Arctic and Pacific shelf, East Greenland, Spitzbergen, Iceland, Troms, Trondheimsfjorden Nova Scotia, St. Lawrence Bay, Franz Josef’s Land, Novaya Zemlya, Bering Sea, Sea of Okhotsk.