Aequipecten opercularis R-klep.jpg
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Aequipecten opercularis R klep, Illustrations of Bivalvia fossils, Aequipecten opercularis
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Aequipecten opercularis R klep, Aequipecten opercularis (right valve) - Fossil bivalve from Pliocene deposits near Antwerp (Belgium)
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タチバナ
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アリアリの卵管の剥離
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lamellibranch bivalvia