Helicodiscus

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

Species
Species within the genus Helicodiscus include:
 * Helicodiscus diadema
 * Helicodiscus eigenmanni (Chamberlin and Berry, 1929) - Mexican coil
 * Helicodiscus hexodon
 * Helicodiscus parallelus - the type species