On gills or egg masses of crabs. With two eyes and no cephalic furrows. Rhynchocoel wall lacks muscles and is remarkably short, extending only a little way behind the cerebral ganglia. Proboscis reduced, weak, without reserve stylets.
Source: Gibson and Knight-Jones, 1990.
The following taxa of this family occur in the region:
Genus Carcinonemertes
Carcinonemertes carcinophila