New Cave Snail Named for Greek Mythology Discovered in Greece

Researchers at the National and Kapodistrian University of Athens identified a new genus and species of freshwater snail, Cyllena hermes, living in a karst spring system in southern Greece’s Peloponnese region. The snail dwells entirely underground near Mount Kyllini, exhibiting adaptations to perpetual darkness such as loss of pigmentation and eyes.

The species is currently known from only one location, a single spring at 610 meters elevation, making it particularly vulnerable to changes in water availability. The researchers named the genus Cyllena after a nymph associated with Mount Kyllini who nurtured Hermes, and the species hermes after the messenger god said to have been born in a cave on the same mountain.

This naming reflects both the snail’s habitat and ancient Greek mythology. The study highlights the hidden biodiversity within Greece’s karst landscapes and the fragility of these underground ecosystems. Because of its limited range and reliance on a single water source, Cyllena hermes is classified as Vulnerable under IUCN Red List criteria.