Long, thin and very active worm with approximately 200 identical segments (up to several cms long). The head bears four little antennae. The dorsal half of the parapodia bears a large leaf-like lamella. Its colour ranges from white to light grey with brown patches or brownish-green broad transverse bands. This species is carnivorous and secretes slime upon contact.
- Degraer S., J. Wittoeck, W. Appeltans, K. Cooreman, T. Deprez, H. Hillewaert, K. Hostens, J. Mees, E. Vanden Berghe & M. Vincx (2006). The macrobenthos atlas of the Belgian part of the North Sea. Belgian Science Policy. D/2005/1191/3. ISBN 90-810081-6-1. 164 pp. http://www.marinespecies.org/aphia.php?p=sourcedetails&id=9234