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Quatrefages, 1865

Description:
Body broad anteriorly, tapering posteriorly.
Prostomium is small and conical, composed of ca. fifteen rings, with palps and antennae forming a cross at the tip.
Mid-body segments triannulate. Parapodia are short with two finger-like prechaetal lamellae, the notopodial much shorter than the neuropodial. Postchaetal lamella is rounded. Dorsal cirri on body wall, rounded, ventral cirri finger-like.
Notopodial capillary chaetae in a single bundle, neuropodial chaetae are compound, in two bundles; the upper and lower chaetae in each bundle are thicker and have a shorter blade than the median chaetae.
Gills absent.
Pharynx with papillae of two kinds: tall with scalloped edges and oval ones.
Aileron with an inner branch which is totally to slightly united to the outer branch by the interramal plate.

Size:
Up to 150 mm long for 170 segments.

Colour:
Living animal whitish, anterior part pinkish.

Habitat:
Sand mixed with gravel, from the eulittoral to about 600 m.

Distribution:
Northeastern Atlantic, Mediterranean, North Sea, Skagerrak and Kattegat.

Glycera lapidum