clausilium
Noun
Meaning
English Wikipedia has an article on:clausiliumWikipedia
clausilium (plural clausilia)
A calcareous "door" in the shells of door snails (of the family Clausiliidae
Noun
English Wikipedia has an article on:clausiliumWikipedia
clausilium (plural clausilia)
A calcareous "door" in the shells of door snails (of the family Clausiliidae