User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-2214433-20131206120919/@comment-7418318-20131206132221

So that's why all "true" Dragon Slayers get Exceeds!

They split themselves into two beings, one Human the other Exceed and when they re-fuse they'll turn back into their Dragon form.

Does that make Ichiya a Perfume Dragon Slayer and his original form is Zirconis?