Wiktionary
xenophora
n. (context biology English) Any mollusk of the genus ''Xenophora''.
Wikipedia
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.
Xenophora is also the name of the quarterly magazine of the French Conchologist Association.