#order_Testacea__Testacea  testacean rhizopods
  supertype:  animal_order  the order of animals
  member of:  subclass_Rhizopoda
  member:  testacean  any of various rhizopods of the order Testacea characterized by having a shell
  member:  family_Arcellidae__Arcellidae  soil an freshwater protozoa; cosmopolitan
     member:  genus_Arcella  type genus of the Arcellidae
        member:  arcella  an amoeba-like protozoan with a chitinous shell resembling an umbrella
  member:  genus_Difflugia  genus of protozoans related to Amoeba
     member:  difflugia  a protozoan with an ovoid shell of cemented sand grains

No statement uses or specializes order_Testacea; click here to add one.