- An extensive division of pectinibranchiate
gastropods, including those that have a long retractile proboscis, with
the mouth at the end, as the cones, whelks, tritons, and cowries. See
Illust. of Gastropoda, and of Winkle. - A subdivision of the taenioglossate gastropods,
including the fig-shells (Pyrula), the helmet shells (Cassis), the
tritons, and allied genera.
Definition
[ n. pl.]