Tyrrheniberus

Marmorana is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Helicidae.

Distribution
Italy

Species
Species within the genus Tyrrheniberus include:
 * Tyrrheniberus ridens (Martens, 1884)
 * Tyrrheniberus sardonius (Martens, 1884) – type species
 * Tyrrheniberus villicus (Paulucci, 1882)