Porcelliidae

Porcelliidae is an extinct family of gastropods in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Taxonomy
This family consists of two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):
 * Porcellinae Koken, 1895
 * Agnesiinae Knight, 1956