VENEROIDAVENEROIDA
| Papua NewGuinea 1968 | Japan 2013 | Malta 2003 | Papua NewGuinea 1968 |
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|---|---|---|---|
| Chocolate Flamed Venus Lioconcha castrensis (Veneridae) |
Hard Clam Meretrix lusoria (Veneridae) |
Tuberculate Cockle Acanthocardia tuberculata (Cardiidae) |
Fluted Giant Clam Tridacna squamosa (Tridacnidae) |
Right and left of the body get two pieces of shells of Veroida. It come into contact with a hinge, and husks are tied in ligament each other. With the thing going into the sand, two pieces of husks become the bisymmetry, but with the thing which it do one husk like a scallop below and do normal position, it become non-symmetric and seemingly there seems to be a husk in a front and the back. When two pieces of husks are closed, it is completely common to seal up, but there is the-shaped thing which it do not completely close in a part.
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