Genus Vilertia gen. nov.

Type species: Vilertia galeata sp. nov.

Description: The most evident characteristic that differentiates this new species from other known valvatiform species on the Iberian Peninsula is the reflexed outer lip, a characteristic which let us introduce a new genus for this new species. The umbilicus is deep and wide.

Etymology: The name is a derivatio nominis referring to the village of Vilert, in the municipality of Esponellà (Pla de l’Estany, Girona province), where the first shells were found. Gender of genus is feminine.

Remarks: Only known for the type species. See comparison with other genera and main characteristics thereafter.