olives

from The Collaborative International Dictionary of English v.0.48

Rhachiglossa \Rhach`i*glos"sa\, n. pl. [NL. See {Rhachis}, and
   {Glossa}.] (Zool.)
   A division of marine gastropods having a retractile proboscis
   and three longitudinal rows of teeth on the radula. It
   includes many of the large ornamental shells, as the
   {miters}, {murices}, {olives}, {purpuras}, {volutes}, and
   {whelks}. See Illust. in the Appendix.
   [1913 Webster]