just normal defects. apparantly, according to kathy and bill loves book its something to do with a defect in the mothers diet before they are laid. maybe not enough calcium or something, but its nothing to worry about.
youll notice more of them as time goes on, and other weird markings etc. but dont worry, they look like very healthy eggs :) congrats! mine are nearing day 70 now! so you can guess how impatient i am!!