Sars, 1872
Description:
Tentacles not numerous, short, thick. Upper lip rounded. No eyespots. Segment 2 with 3-5 gills on each side, segment 3 with 2-3, and segment 5 with 0-3. Anterior segments with distinct ventral shields. Notopodial chaetae smooth, on long notopodia starting at segment 2 and in 20-30 segments, hence no exact number of thoracic segments. Uncinigerous tori from segment 5, low and short.
Size:
Worm up to 40 mm long.
Tube:
A thin layer of secretion encrusted with sand, cylindrical, usually irregularly bent, sometimes approaching helical form.
Colour:
In alcohol whitish.
Habitat:
Mainly on mixed bottoms of mud with sand; 50 to about 500 m.
Distribution:
Southeast Greenland. The Faeroes, Norwegian coast from Oslofjord to Vesteralen, Swedish west coast, Skagerrak.