YES, exactly charlie but there are also ones that vary in looks like this one below i found a few months back...notice the middle of it looks to contain some sort of "worm"
but the one you posted is what im seeing more often. Looks like shedding of something...either roundworm or intestine...maybe even stomach lining. I do take tylenol Pm every night to sleep so maybe its that thats maybe eating up either the worm or my stomach ???