#genus_Tridacna__Tridacna  type genus of the family Tridacnidae: giant clams
  supertype:  #mollusk_genus__molluskgenu  a genus of mollusks
  member of:  #family_Tridacnidae
  member:  #giant_clam__giantclam__Tridacna_gigas  giant clam inhabiting reefs in the South Pacific weighing up to 500' pounds

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