Source : Webster's Revised Unabridged Dictionary (1913)

Proboscidifera \Pro*bos`ci*dif"e*ra\, n. pl. [NL. See
   {Proboscis}, and {-ferous}.]
   1. (Zo["o]l.) 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}.

   2. (Zo["o]l.) A subdivision of the t[ae]nioglossate
      gastropods, including the fig-shells ({Pyrula}), the
      helmet shells ({Cassis}), the tritons, and allied genera.