The way you described the probing "event" I would say the it was not an accurate way of ensuring this animals sex.



Certain snakes easily can flex and prevent the probe from passing to the depth of a male.



Also hemipenal castings/sperm plugs can block a probe as well.



But boas usually leave these in their water bowls, I have seen them in blood pythons where they where hard like a snot and if you pulled it out, you get the idea....YUK lol



As long as the snakes are healthy you could make introductions and watch for courtship activity.



I was given a "female" coastal carpet python on a breeding loan to breed to my male. (zoo sexed no less) I knew it was not a female within minutes of introduction because of the wrestling match type of behavior. Although I have not heard of male boa competing I am sure there are prominent behaviors you could note to discern sex of the animal.



Dave from rainbows r us has a pretty reliable palpation method he uses as well. But this may work on babies only, not really certain.




-----
Thanks,



Frank Roberts

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