#carapace__shell__cuticle  hard outer covering or case of certain organisms such as arthropods and turtles
  supertype:  exoskeleton  the exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs
  substance:  shell
  part of:  turtle  arthropod  mollusk
  subtype:  cuticula  the outer body wall of an insect

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