Im 90% sure they are signals, but have never seen a white so I'm not sure how similar they look.
Have a look on the underside of there claw and is its red then they are 100% signals
Edited to add, it is only the underside of the claw that is red. To be honest its very doubtful to be whites as they are so rare, if they are then you should contact the EA and let them know.