nemertean

Any of various unsegmented chiefly carnivorous worms of the phylum Nemertea (or Nemertini) that have a long, often brightly colored body with an extensible proboscis and typically live in the sea or in the mud of the intertidal zone.

Pertaining to the Nemertea, or having their characters.

A worm of the class Nemertea.

Of or pertaining to the Nemertina.

Any of several unsegmented, brightly-coloured worms, of the phylum Nemertea; the ribbon worms

soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract