Oh Sorry. The one on the right is the Specter.
Like some of the other subtle morphs the only way for sure way you can know if a normal you have in your collection is a gene carrier is to breed it and see.
The big question I asked myself when I got a specter male was if I was going to be able to tell the specters from the normals. And atleast to me in person comparing two animals like the two above it seems doable
Thanks for looking!