#class_Thaliacea__Thaliacea  small class of free-swimming tunicates; sometimes classified as an order
  supertype:  #class__clas  (biology) a taxonomic group containing one or more orders
  member of:  #subphylum_Urochordata
  member:  #family_Salpidae__Salpidae  a small family of tunicates in the class Thaliacea
     member:  #genus_Salpa  type (perhaps sole) genus of the Salpidae
        member:  #salp__salpa  minute floating marine tunicate having a transparent body with an opening at each end
  member:  #family_Doliolidae__Doliolidae  oceanic tunicates
     member:  #genus_Doliolum  type genus of the Doliolidae
        member:  #doliolum  free-swimming oceanic tunicate with a barrel-shaped transparent body

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