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Eliason, 1920

Body long, thin and cylindrical with about 100 segments.
Prostomium roundly triangular or heart-shaped with 2 small eyes and a club-shaped antenna reaching chaetiger 2 or 3 and two weakly bent nuchal slits.
Notopodial postchaetal lobes in the first chaetiger small and conical, becoming bigger until the fourth chaetiger; behind the gills thin and filamentous.
Neuropodial postchaetal lobes very small.
All parapodia with capillary chaetae.
Neuropodia of postbranchial segments bear also up to ten modified chaetae with a thin terminal prolongation (A. suecica-detail).
Up to 30 pairs of large gills, starting at chaetiger 4.
Pygidium with two long and one short cirrus.

Up to 20 mm for 120 segments.

Living animal with yellowish or brownish back and dark pigmentation on prostomium and anterior segments or colourless. In alcohol brown or rust-red.

Sublittoral to 2500 m. Muddy bottoms.

Arctic, North Pacific, North Sea, Öresund and Baltic Sea.

Aricidea suecica