I have studied and looked at pics of sabas and suspected sabas, really facinating.
Some would say that yours is not a saba because he has a green spot, however, in HIlly's article, he mentions his saba having a green spot.
I think what you have, and perhaps what I have (I have two of these) are either juvenile sabs and as they grow they will look more like the specimens in the library. OR we have a mixture of saba and green spot. I have looked at maps and the areas were both of these puffers are found do over lap...so that could mean two things. 1. A hybrid is possible due to location and genome and 2. exporters could easily confuse the two as juveniles and are grabbing up both.
If you look here, mine and yours look like juvenile sabs
http://www.puffer.gr.jp/monograph/Libra ... /index.htm
Look at this youtube video as well, it allows you to see what your puffer will look like grown up
You kind of see how the spots can change position
http://www.youtube.com/watch?v=khvC2Zt60O4
Here is another video that puts the spots into perspective
http://www.youtube.com/watch?v=yHQHXuPv ... re=related
Whatever they are, we will know for sure once they surpass 6 inches. But for me a huge clue is how dang fast they are growing!!!!!!!!!!!!!!!!!!!!!!!!!!