from the GNU version of the Collaborative International Dictionary of English
- n.pl. 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.
- n.pl. A subdivision of the tænioglossate gastropods, including the fig-shells (Pyrula), the helmet shells (Cassis), the tritons, and allied genera.
from The Century Dictionary and Cyclopedia
- A division of pectinibranchiate gastropods with a small head, a proboscis retractile under the base of the tentacles, and variable teeth on a long cartilaginous lingual ribbon.
Sorry, no etymologies found.