"He thought: Very well. I am now a man with no food, with two less fingers and one less toe than I was born with; I am a gunslinger with shells which may not fire; I am sickening from a monster's bite and have no medicine; I have a day's water if I'm lucky; I may be able to walk perhaps a dozen miles if I press myself to the last extremity. I am, in short, a man on the edge of everything."
- Roland Deschain, Last in the line of Arthur Eld
From The Dark Tower: The Gunslinger by Stephen King
Sorry to keep texturing these things; the reasons will become all-too apparent in Tonmo time.
Attached is a radula (textured); nope, the earlier image is no radula; neither is it hook, shell nor of gladius origin. People have been warm .... but you'll need to do a lot of digging to find out what these structures are, because as far as I know they really haven't been reported in detail to date.
I don't want to tell you what it is, simply because it's an interesting way to learn about anatomy if you figure it out for yourself (boring if I blurt something out, don't you think?).
Well...gah. Structures for pulping food and moving them down the gullet, I guess. If you didn't have grinding teeth or a radular tongue, you might want some kind of internal structure to grind up the food before it was digested.
Hi this is definitely a guess, well first picture would have said radula but has it is not, i have no idea is the picture up side down lol. The second picture guess again is it some kind of cilia in the digestive tract.