Vermetidae
From Wiki @ Karl Jones dot com
Vermetidae, common name the worm snails or worm shells, is a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha.
Description
The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails".
These snails usually grow cemented onto a hard surface, or cemented together in colonies.
See also
External links
- Vermetidae @ Wikipedia