Stromboidea
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The Stromboidea, originally named the Strombacea by Rafinesque in 1815, is a superfamily of medium-sized to very large sea snails in the order Littorinimorpha.
Strombidae
Five views of a shell of Aporrhais pespelecani, a species in the family Aporrhaidae
Five views of a shell of Lobatus gigas, a species in the family Strombidae
Struthiolaria papulosa, a species in the family Struthiolariidae
Xenophoridae
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Xenophoridae, commonly called carrier shells, is a family of medium-sized to large sea snails, marine gastropod mollusks in the clade Littorinimorpha.
Stromboidea
…The author proposed a cladogram (a tree of descent) based on an extensive morpho-anatomical analysis of representatives of Aporrhaidae, Strombidae, Xenophoridae and Struthiolariidae. In his analysis, Simone recognized Strombidae as a monophyletic taxon supported by 13 synapomorphies (traits that are shared by…
Xenophorid Side View
Aperture view of a xenophorid gastropod (Xenophora pallidula).