#family_Arcellidae__Arcellidae  soil an freshwater protozoa; cosmopolitan
  supertype:  #protoctist_family  any of the families of Protoctista
  member of:  #order_Testacea
  member:  #genus_Arcella  type genus of the Arcellidae
     member:  #arcella  an amoeba-like protozoan with a chitinous shell resembling an umbrella

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