Wikipedia
Proserpinidae
Proserpinidae is a taxonomic family of small land snails with an operculum, marine gastropod mollusks in the superfamily Helicinoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
This family has no subfamilies according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.