ProboscidiferaPro*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.