You could get away with pronouncing them as: "Zahlan" (Xalan) "Zerksees" (Xerces) and I'm sure most people "in the know" will understand what you're saying.
Originally posted by James Swan: You could get away with pronouncing them as: "Zahlan" (Xalan) "Zerksees" (Xerces) and I'm sure most people "in the know" will understand what you're saying.