Xenophora

Xenophora, commonly called carrier shells, is a genus of medium-sized to large sea snails, marine gastropod mollusks in the family Xenophoridae, the carrier snails or carrier shells. The genus Xenophora is the type genus of the family Xenophoridae.

==Etymology== The name Xenophora comes from two ancient Greek words, and means "bearing foreigners", so-called because in most species the snail cements pieces of rock or shells to its own shell at regular intervals as the shell grows.