UNIONOIDA

Romania 1966
Freshwater Mussel
Anodonta cygnaea
(Unionidae)


Unionoida is distributed over the world in the taxa of the bivalve of the fresh water life widely. Many shellfishs of Unionoida are fertilized in a mother shellfish and occur, and it is with larva and it is parasitic on the surface of a body of the fish and grow up and enter the free-living afterwards.

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