Scientists have discovered a new exotic snail with a transparent shell like the deepest cave glass in Croatia.

Strange snail species transparent shell like glass images 1
Snail Zospeum tholussum transparent shell has just been discovered

These tiny creatures are certified as new species and live in one of the world's 20 deepest cave systems: Lukina Jama – Trojama in Croatia.

The newly discovered animal has a scientific name, Zospeum tholussum , which belongs to the family of snails recorded in Subterranean Biology (Biological underground).

Scientists from the University of Goethe, Frankfurt - Germany and the Croatian Biological Society could not find their bulls, guessing they were only standing in the dark in underground caves.

Strange snail species transparent shell like glass images 2

Strange snail species transparent shell like glass images 3

Tiny animals are found at a depth of 980m, in an underground cave full of soil and sand with a small stream of water flowing through. This snail species often prefers a muddy environment, close to the cave's drainage, so scientists speculate that they disperse to other places thanks to water or larger animals.

Lukina Jama – Trojama is Croatia's deepest cave system and is known for its distinctive curves, long cavities with a depth of - 1,392m.