the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > belonging to (5)
Zoology. Of or relating to the phylum (or Linnaean order) Mollusca; of the nature of a mollusc. Now historical.
Zoology. Of or characteristic of the phylum Mollusca or the former division Molluscoidea; resembling a mollusc. Latterly chiefly in extended use.