MeSH definition : A class in the phylum MOLLUSCA comprised of SQUID; CUTTLEFISH; OCTOPUS; and NAUTILUS.
These marine animals are the most highly organized of all the mollusks.;
A class in the phylum MOLLUSCA comprised of SQUID; CUTTLEFISH; OCTOPUS; and NAUTILUS.
These marine animals are the most highly organized of all the mollusks.