fiona is right, the "hulled" pumpkin seeds are pepitas. its just like the sunflower kernal of a sunflower seed.

By the way, pepitas are DELICIOUS. They can be found not only in mexican grocery marts but many regular grocery stores as well. In fact the popular low carb snack Pumpkorn is just pepitas with lots of seasoning. The best is just plain roasted pepitas. VERY good and a nice salty snack that is rather different. Also very low in carbs! yumyum yum!

-Angie