Audouin & Milne-Edwards, 1829
Description:
Body delicate and transparent.
Prostomium with three antennae and two similar palps. A single pair of very big, lensed eyes.
First segment dorsally incomplete, with 3 pairs of short tentacular cirri ventrally. The first parapodial segment following with reduced parapodia but the fifth and succeeding segments with well-developed uniramous parapodial lobes, terminating in two cirriform appendages. Chaetae all slender compounds. Dorsal and ventral cirri leaf-like.
Pygidium with two cirri.
Pharynx eversible, with two lateral horns. No jaws.
Size:
Up to 60 mm for 60 segments.
Colour:
Transparent, eyes red.
Habitat:
Pelagic.
Distribution:
Northern North Sea, Atlantic, possibly world-wide.