Species (9)

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca tetragona

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca tetragona ssp. tetragona

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca tetragona ssp. britannica

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca cardissa

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca umbonata

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca imbricata

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca cuneata

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca imbricata ssp. imbricata

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  Metazoa Mollusca Bivalvia Arcoida Arcidae Tetrarca

  Tetrarca imbricata ssp. ibizenca

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