Topic summary
File shell
Extracted from the Wikipedia article Limidae.
The Limidae or file shells are members of the only family of bivalvemolluscs in the orderLimida. The family includes 130 living species, assigned to 10 genera. Widely distributed in all seas from shallow to deep waters, the species are usually epifaunal or nestling, with many species building byssal nests for protection. The majority of species are capable of irregular swimming by waving their long mantle tentacles.