Ruthenica
Ruthenica is a genus of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the subfamily Clausiliinae of the family Clausiliidae, the door snails, all of which have a clausilium.
Ruthenica is a genus of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the subfamily Clausiliinae of the family Clausiliidae, the door snails, all of which have a clausilium.