Helenodiscus
Helenodiscus was a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. Both species were declared extinct by the IUCN in 1996.
Helenodiscus was a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. Both species were declared extinct by the IUCN in 1996.