Hypomelanism is the same thing as OG (orange ghost). The Ball Python community aquired a bad habit long ago of referring to Hypos as Ghosts. I only say it is a bad habit, because what will happen if and when a Ghost (Hypo x Axanthic) Ball Python is actually created. Then there might be some confusion when talking a bout a Spider Het Ghost. Is it really Het Ghost, or is it Het for just Hypomelanism.