Species (6)

• 

  Metazoa Tentaculata Gymnolaemata Arachnidium

  Arachnidium fibrosum Hicks

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• 

  Protista Ciliophora Arachnidium

  Arachnidium bipartita

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• 

  Protista Ciliophora Arachnidium

  Arachnidium bipartitum

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• 

  Protista Ciliophora Arachnidium

  Arachnidium convolutum

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• 

  Protista Ciliophora Arachnidium

  Arachnidium becheri Buddenbrock 1920

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• 

  Protista Ciliophora Arachnidium

  Arachnidium globosum Kent 1881

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