#family_Physeteridae__Physeteridae  sperm whales
  supertype:  #mammal_family  a family of mammals
  member of:  #suborder_Odontoceti
  member:  #genus_Physeter__Physeter  type genus of the Physeteridae
     member:  #sperm_whale__spermwhale__cachalot__black_whale__blackwhale__Physeter_catodon  large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris
  member:  #genus_Kogia__Kogia  pygmy sperm whales
     member:  #pygmy_sperm_whale__pygmyspermwhale__Kogia_breviceps  small sperm whale of warm waters of both coasts of North America
     member:  #dwarf_sperm_whale__dwarfspermwhale__kogiasimu  very small (to 8 feet) sperm whale of central coasts of Atlantic and Pacific

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