#Old_World_crayfish__ecrevisse  small crayfish of Europe and Asia and western North America
  supertype:  crawdaddy__crayfish__crawfish__crawdad  small freshwater decapod crustacean that resembles a lobster
  part:  crawdad
  member of:  genus_Astacus__Astacus  type genus of the family Astacidae; Old World crayfish
     member of:  family_Astacidae__Astacidae__Astacura  crayfish
        member of:  Decapoda__order_Decapoda  lobsters; crayfish; crabs; shrimps; prawns
           member of:  subclass_Malacostraca__Malacostraca  largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies
              member of:  class_Crustacea__Crustacea  class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas
                 member of:  phylum_Arthropoda__Arthropoda  jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes
                    member of:  kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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