See text Xenophoridae, commonly called carrier shells, is a family of medium-sized to large sea snails, marine gastropod mollusks in the clade Littorinimorpha.

The shells are small to rather large (diameter of base without attachments 19–160 mm; height of shell 21–100 mm), depressed to conical, with narrow to wide, simple to spinose peripheral edge or flange separating spire from base.

Teleoconch usually with foreign objects attached in spiral series to peripheral flange and, sometimes, remainder of dorsum, at least on early whorls.

[2] It had previously been placed in a monotypic superfamily, Xenophoroidea,[3] but placement in Stromboidea is supported by behavioral,[4] anatomical,[5] and genetic data.

Genera within the family Xenophoridae include:[1][7] Like other stromboids, xenophorids move in a "leaping" manner.