Bivalve Mollusk
A mollusk with a pair of shells (valves) which open by a means of a hinge.
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This bivalve mollusk is called the "black-lipped" oyster, or Pinctada Margaritifera cumingi. The outside edges of the oyster shell and edges of the mantle are black in color.
The Mergui Archipelago has a long stretch of coastal area with over 800 islands. This area also produces some of the finest silver-pink and golden pearls. At pearl island hatcheries, pearls are cultured from bivalve mollusks, ...
 See also: Water, Pearls, Color, Pearl, Length
  
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