Hypertext Webster Gateway: "cassis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
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