I hope you dont think im trying to be rude..?
Here is a pic of what I am looking at, the black lines point to the 'seperations' that I see, and the pink lines just point to the whole outer edge of the body, I've had chitons 'roll up' in that fasion in my hand... it just looks like many I have seen:
Hopes this clarrifies? Maybe im way off the ball here..
Chris