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

Naticoidea. Retrieved November, 05 2021, from en.wikipedia.org/wiki/Naticidae.

Neverita lewisii (previously known as Polinices lewisii, Lunatia lewisii, Euspira lewisii), common name Lewis's moon snail, is a species of large operculated sea snail. It is a predatory marine gastropod in the family Naticidae, the moon snails. Traditionally, this species was assigned to either the genus Lunatia, the genus Polinices or the genus Euspira. Recently, it was assigned to the genus Neverita based on molecular data. This is the largest species in the family.

Neverita lewisii. Retrieved November, 05 2021, from en.wikipedia.org/wiki/Neverita_lewisii.