None that I'm aware of.Some places sell the same black/white clown as Ocellaris or Percula.If I'm not mistaken many scientist consider both fish the same fish that has been separated at birth,sort of speak.
Ocellaris and percula are 2 different species. They look very similar, but the false perc (ocellaris) has 10 spines on it's doral fin and the perc has 11.