#class_Tentaculata__Tentaculata  ctenophores have retractile tentacles
  supertype:  #class__clas  (biology) a taxonomic group containing one or more orders
  member of:  #phylum_Ctenophora
  member:  #order_Cydippida__Cydippida__Cydippidea__order_Cydippidea__Cydippea__order_Cydippea  ctenophores having two long pinnate tentacles
  member:  #order_Platyctenea__Platyctenea  an order of Tentaculata
     member:  #platyctenean  ctenophore have long tentacles and flattened body
  member:  #order_Cestida__Cestida  ctenophore having short tentacles; one family
     member:  #family_Cestidae__Cestidae  coextensive with the order Cestida; ctenophores having a greatly flattened and elongated body
        member:  #genus_Cestum__Cestum  Venus's girdle
           member:  #Venus's_girdle__Cestum_veneris  ctenophore having a ribbon-shaped iridescent gelatinous body
  member:  #order_Lobata__Lobata  ctenophore having tentacles only in the immature stage; body compressed vertically having two large oral lobes and four pointed processes

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