What does the area around the crayfish eye look like?

I'm doing a lab write up for biology, and i lost all my diagrams. =(. so can someone please tell me what the area around the crayfish eye looks/is like? it would be SUCH a huge help!!What does the area around the crayfish eye look like?
Looks like:


http://dnr.wi.gov/invasives/fact/images/鈥?/a>What does the area around the crayfish eye look like?
poop.