These bivalves have thin, elongate shells and are rapid burrowers in subtidal sandy beaches. Easily distinguished by the violet-blue rays and the white internal rib running from the hinge to shell margin.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith