Jamis Commuter 4 conversion to derailleur geared I'm trying to convert my Jamis Commuter bike with an IGH to a 10 speed derailleur setup.

I've got a bit stuck on the project with the rear derailleur.  Here's what I want to verify.  Looking at the attached picture, there's definitely a hole for a derailleur hanger right?  

From my research thus far I just need to find a compatible derailleur hanger.  I assume my best bet (since this model never had a hanger) is to look for other Jamis compatible hangers and see if I can find a match.
I don't see any holes designed for a derailleur hanger. You should be able to use this type though. It clamps into the horizontal dropout. I've heard them called claw hangers. Don't know if there's a better name for them.