#genus_Spadella  marine worms resembling the sagittas but with a broader body and only one pair of lateral fins
  supertype:  #worm_genus  a genus of worms
  member of:  #phylum_Chaetognatha__Chaetognatha  arrowworms: a group of small active transparent marine worms
     member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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