What is "pristilomatidae"

Pristilomatidae is a taxonomic family of air-breathing land snails, terrestrial gastropod mollusks in the superfamily Gastrodontoidea.

According to the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi these snails belong to the " limacoid clade", and Vitreinae is a synonym for Pristilomatidae, although Vitreinae used to be a subfamily of Zonitidae. Family Pristilomatidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).