Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Links to other Web sites

(Keferstein, 1862)

Body long and fragile.
Prostomium rounded quadrangular, bilobed, with four lensed eyes, the anterior pair the largest. Prostomium with 2 antennae and 2 annulated palps, thicker and a little longer than the lateral antennae and with 2 rings.
Lateral antennae threadlike and a little longer than the prostomium. Median antenna absent.
8 pairs of annulated tentacular cirri on 4 segments. Parapodia subbiramous. Dorsal and ventral cirri annulated.
Tentacular cirri placed on long cirrophores. Dorsal cirri even longer than the longest tentacular cirri. Notopodia only with 2 or 3 aciculae on the basis of the dorsal cirri.
Neuropodia blunt conical with broad rounded postchaetal and 2-3 folded prechaetal lobes with usually 3 aciculae (K. cirrata-detail).
Pharynx with 40 or more thread-like terminal papillae, without jaws.

Body up to 75 mm for 70 segments.

Very variable, yellow, yellowish-brown, light or darker pink to dark red. Cirri whitish.


Atlantic between Iceland and South Africa, Mediterranean, English Channel, North Sea up to Bay of Kiel.

Kefersteinia cirrata