#family_Proteidae__Proteidae  mud puppies
  supertype:  #amphibian_genus__amphibiangenu  any genus of amphibians
  member of:  #order_Urodella
  member:  #genus_Proteus__Proteus  type genus of the Proteidae
     member:  #olm__Proteus_anguinus  European cave-dwelling aquatic salamander with permanent external gills
  member:  #genus_Necturus__Necturus  a genus of Proteidae
     member:  #mud_puppy__Necturus_maculosus  aquatic North American salamander with red feathery external gills

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