Hmmm... I take it you have never seen anything like this before? Has this female ever laid for you before?

Myself, I have never had any P. Regius eggs, or any snake eggs at that, but I have seen something similar in other egg laying reptile species(breeding chameleons in my specific experience), and it normally means that there was a lack of calcium or UV provided to the mother during the egg development stage. I am not a BP expert by any means... But knowing that they do not require UV, I would be curious to know how their body processes calcium? I know that with the animals I work with, without proper UV exposure, their body does not process calcium into the stage where it is useful, IE. Bone strength, or egg production. And if a Gravid female is allowed to go her term with a lack of either the UV, or Calcium, the result is poorly calcified eggs, which bare a striking resemblance to your eggs.

If it is indeed poorly calcified eggs you have on your hands... they could be fertile(and those veins scream fertile IMO)... I would be curious to know what factors would contribute to this in a species that does not require UV or calcium supplementation as part of the husbandry regiment.

Any thoughts?

EDIT:
Looks like the female didn't have enough calcium??

Good luck with hatching them out!
Heather you beat me to it!

~Joe