Styrian Pumpkin Seeds are the best organic pumpkin seeds. They are from the southwestern Styria, in Austria. The climate temperature, which is higher than the surroundings, supports its growth. That's why, it retains majority of its nutritional value, compared to plain pumpkin seeds.
These seeds are indeed different from the usual pumpkin seeds. They have no outer hard shell, as it has been lost due to a mutation about 100 years ago. There is only a tiny silver-colored membrane that protects it.
Therefore, they are edible and have been used for ages as a snack food.
Try making some Pumpkin seed smoothies or ice cream with some Styrian Pumpkin seeds and oil.