What is "naticidae"

Naticidae, common name the moon snails or necklace shells, is a family of minute to large-sized predatory sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of the species in this family are mostly rather globular in shape.

Naticidae is the only family in the superfamily Naticoidea.

It has been estimated that worldwide there are about 260–270 Recent species of naticid snails. This group is assumed to have originated in the late Triassic or in the early Jurassic. Members of this family can be recognized by the shape of their shells, distinct appearance or by their predatory behavior.