#invertebrate  any animal lacking a backbone or notochord; the term is not used as a scientific classification
  supertype:  #animal__animate_being__animatebeing__beast__brute__creature__fauna  a living organism characterized by voluntary movement
  subtype:  #arthropod  #zoophyte  #poriferan  #coelenterate  #ctenophore  #worm  #woodborer  #rotifer  #mollusk  #phoronid  #bryozoan  #ectoproct  #entoproct  #Symbion_pandora  #brachiopod  #peanut_worm  #echinoderm
  part:  #invertebrate_foot__foot  any of various organs of locomotion or attachment in invertebrates
  part:  #peristome  region around the mouth in various invertebrates

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