ヒモムシ学入門Nemertea is one of the spiralian phyla, consisting of about 1350 species from all over the world. Nemerteans are commonly known as ribbon worms, occurring in a wide variety of marine, freshwater, and terrestrial ecosystems. Although about 100 species of nemerteans have been reported from Japan, recent studies in limited areas involving molecular phylogenetic techniques have uncovered high species
