I know this is an old thread, but the list of Axanthic lines is most complete here that I can find. In this thread its stated that there are 5 lines of axanthic. Here are the four I found - what is the fifth? And is there a sixth or seventh?

MJ Axanthic (Markus Jayne)
VPI Axanthic
TSK Axanthic (SK Axanthic)
Joliff Axanthic