Muricoidea
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| Muricoidea | ||||||||||||||||
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Family Muricidae |
The Muricoidea is a superfamily of marine gastropods. The shell is spindle-shaped with a low to medium spire, strong ornament of ribs, nodules, or frills, an oval aperture, and a fairly long siphonal canal. The mantle has a gland that produces a purplish pigment. The Muricoids first appear during the Cretaceous period. Two families are recognised in the current classification.Template:Invertebrate-stub