Aricidea quadrilobata Webster & Benedict, 1887

Synonyms:
Aricidea quadrilobata Strelzov, 1973

Distinguishing characteristics
Prostomium with median, long and filamentous antenna reaching chaetiger 9.
Branchiae starting at chaetiger 4.
Modified chaetae with a thin terminal prolongation.

Species description
Prostomium roundly triangular, broad with two small eyes and a median, long and filamentous antenna reaching chaetiger 9. Up to 27 pairs of branchiae, starting at chaetiger 4. Notopodial postchaetal lobes in the first 3 chaetigers small and cirriform. All parapodia with capillary chaetae. Neuropodia of postbranchial segments bear also up to 8 modified chaetae with a thin terminal prolongation. Pygidium with 2 long and 1 short cirrus.

Size

Color

Habitat
Prefers muddy with some quantity of sand or clay. Found also on clear sand.

Mobility
Mobile.

Feeding
Surface deposit feeder. Herbivore.

Life cycle

Distribution
Arctic, Barents Sea, Shamrock Canyon (Biscay), Mediterranean, Antarctic.