A small, thick-shelled bivalve with the right valve usually much larger than the left. They are suspension feeders and live shallowly burrowed in fine sands and muds.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith