#tunicate__urochordate__urochord  primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva
  supertype:  chordate  any animal of the phylum Chordata having a notochord or spinal column
  member of:  subphylum_Urochordata
  subtype:  ascidian  minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves
     subtype:  sea_squirt__seasquirt  ascidian that can contract its body and eject streams of water
  subtype:  salp__salpa  minute floating marine tunicate having a transparent body with an opening at each end
  subtype:  doliolum  free-swimming oceanic tunicate with a barrel-shaped transparent body
  subtype:  larvacean  any member of the class Larvacea
  subtype:  appendicularia  free-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates

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