The bony shell was completely hollow.
Without it, he was just a sick old man with a scrawny neck and ears that protruded from the bony shell of his skull.
Was the antique firearm powerful enough to penetrate the turtle's bony shell?
The organ most at risk is the brain, being enclosed within a rigid bony shell.
Virtually all turtles have a covering of scutes, or modified scales, over the bony shell.
In many turtle species, the bony shell is in turn plated over with tough fingernail-like structures called scutes.
The man's body was a bony shell inside rumpled clothing that hung on him like a disorderly collection of sacks.
It is distinguished from other sea turtles by its lack of a bony shell.
It can easily be differentiated from other sea turtles by its lack of a bony shell.
Mandibular molars of manatees develop separately from the jaw and are encased in a bony shell separated by soft tissue.