Hi,
Photo resolution isn't good enough to see if the scales in that area are mishapen.
But I can't think of any morphs that look like that either - if it was calico the white would be in the alien heads not between them and if it was a ringer wouldn't it have more colour variation to it?
I do have black pastels that have white coming up the sides like that but it is along the length of the animal and that definately doesn't look like a black pastel.
dr del