It is probably what is called "flea dirt" which is actually flea feces composed of blood they digested (I know... ICK!). If you pick off the specks and put them on a wet paper towel, they will spread into small blood drops (ICK again!).

Is Cloey on any kind of flea prevention? I bathe my fosters who are too young for flea prevention in tearless baby shampoo. I rub the shampoo in then hold them in a washcloth for a few minutes to drown the fleas out. When I am rinsing the kitten off, I will pick off any moving fleas I see. I know, I know... ICK!!!!