have you looked at Perna viridis (L.,1758) aka the green mussel?  It has a
bright green periostracum and a slight greenish undertone in the pearly nacre.
It's listed in compendium. It is supposed to be quite common in the sw pacific
region. The only specimens I have seen were from my evolutionary bio prof's
dinner plate. He called them New Zealand mussels
 
Sarah
 
 
 
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Sarah Watson
Silver Spring MD
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<A HREF="http://www.geocities.com/southbeach/tidepool/8845">
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" One cannot collect all the beautiful shells on the beach. One can only
collect a few, and they are more beautiful if they are few. "
-Anne Morrow Lindbergh