#doliolum  free-swimming oceanic tunicate with a barrel-shaped transparent body
  supertype:  #tunicate__urochordate__urochord  primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva
  member of:  #genus_Doliolum  type genus of the Doliolidae
     member of:  #family_Doliolidae__Doliolidae  oceanic tunicates
        member of:  #class_Thaliacea__Thaliacea  small class of free-swimming tunicates; sometimes classified as an order
           member of:  #subphylum_Urochordata__Urochordata__Urochorda__subphylum_Urochorda__Tunicata__subphylum_Tunicata  tunicates
              member of:  #phylum_Chordata__Chordata  comprises true vertebrates and animals having a notochord
                 member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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