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]