#sea_urchin__seaurchin  shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
  supertype:  #echinoderm  marine invertebrates with tube feet and calcite-covered five-part radially symmetrical bodies
  subtype:  #edible_sea_urchin  #sand_dollar  #heart_urchin
  member of:  #class_Echinoidea__Echinoidea  sea urchins and sand dollars
     member of:  #phylum_Echinodermata__Echinodermata  radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers
        member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

No statement uses or specializes #sea_urchin; click here to add one.