#family_Hirudinidae__Hirudinidae  a family of Hirudinea
  supertype:  #worm_family  a family of worms
  member of:  #class_Hirudinea
  member:  #genus_Hirudo__Hirudo  type genus of the family Hirudinidae
     member:  #medicinal_leech__medicinalleech__Hirudo_medicinalis  large European freshwater leech formerly used for bloodletting
  member:  #genus_Haemopis__Haemopis  leeches
     member:  #horseleech  any of several large freshwater leeches

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