seaclam,clamshell

huge clam - picture of down under cruise & dive
the sea is calm to-night, the tide is full, the moon lies fair
the beautiful calm sea
lofoten norway calm sea houses on wooden pillars
贻贝,蚌oyster 牡蛎,蚝sea snails 海生蜗牛geoduck clam 象拔蚌