#family_Alopiidae__Alopiidae  thresher sharks
  supertype:  fish_family  any of various families of fish
  member of:  subclass_Elasmobranchii
  member:  genus_Alopius__Alopius  type genus of the family Alopiidae; in some classifications considered a genus of the family Lamnidae
     member:  thresher_shark__thresher__thrasher__fox_shark__foxshark__Alopius_vulpinus  large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed

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