where are ribbon worms
The ribbon worm, also called proboscis worm, bootlace worm, nemertean, or nemertine, is any member of the phylum Nemertea. Nemertea is also called Nemertinea or Rhynchocoela. There are more than 900 Nemertea species, including free-living forms as well as parasites of sea squirts, crustaceans, and mollusks. Most Nemertea are found in marine habitats, but some may live on land (terrestrial) or in freshwater. There are 13 known terrestrial ribbon worm species recorded worldwide.