Crustshells

Crustshells (picecochlea) are a genus of land snail descended from the Horntail snail. They can be found in mid-low himalayas as well as the hindu-kush mountains. They usually come in at .8 inches in length in their shell.

Their diet consists of lichens, fungi, moss, and the occasional succulent. While they forage, the harsh cold winds become an issue. In order to counteract this, they generate copius amounts of black slime that quickly solidify around their body, save for the bottom of the foot. The casing can be discarded whenever the snail wishes. 

In addition to making wind protection for themselves, crustshells contain glycerol (an antifreeze protein) in their systems. When not foraging, multiple snails will crowd into one den to keep each other warm. At night, they go into temporary torpor until the sun comes up.