#genus_Hirudo__Hirudo  type genus of the family Hirudinidae
  supertype:  worm_genus  a genus of worms
  member:  medicinal_leech
  member of:  family_Hirudinidae__Hirudinidae  a family of Hirudinea
     member of:  class_Hirudinea__Hirudinea  hermaphroditic aquatic or terrestrial or parasitic annelids
        member of:  phylum_Annelida__Annelida  segmented worms: earthworms; lugworms; leeches
           member of:  kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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