It is a P Antennata, and while pointing out the different ocular projections is one way of ID'ing these fish, its not always accurate. Just remember that many P volitans and Russells w/ loose these ocular projections w/ age, and P Mombassae have the exact same as P antennata. In this case it worked only becuase you omitted P Mombassae from your search
Also those confused about P Radiatas, the easiest way to tell is look at the caudal peduncle. Only radiatas have 2 white lateral stripes.
Next, In my opinion calling these fish by their common name is nothing short of confusing: spotfins, clearfin, etc. If you look thru Scott michaels book, he called P Russells "clearfin" lions, P Volitans are called turkeyfish, what huh. Many lionfish have eye spots on their fins. P mombassase got a ton of them- they call them "devil lion"-why-not call them "alotta spotfin lion"?
If anyone cares to look up husbandry info on lionfish as well as pictures for ID feel free to google search for the "lionfish info sheet" --the first hit will pull it up, plenty of pictures, and you can see what I mentioned above
frank