Species (3)

• 

  Metazoa Mollusca Gastropoda Pulmonata Helicidae Heterostoma

  Heterostoma paupercula Lowe

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• 

  Protista Ciliophora Microregma

  Microregma heterostoma Beardsley 1901

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• 

  Protista Ciliophora Prostomatea Prostomatida Holophryidae Holophrya

  Holophrya heterostoma Beardsley 1901

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