What is a subdivision of the tænioglossate gastropods, including the fig-shells (Pyrula), the helmet shells (Cassis), the tritons, and allied genera called?

proboscidifera — (Zoöl.) A subdivision of the tænioglossate gastropods, including the fig-shells (Pyrula), the helmet shells (Cassis), the tritons, and allied genera. (Webster's 1913.)

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