Great pics -- thanks. Also, thank you for adding the quarter -- it helps give with a perspective on the size.
I can only give you my account of ascaris eggs that I observed that were in sacs. I've described these before on the P Forum & Humaworm. In my observance, ascaris eggs looked like little pearls in an oval thick whitish sac that was somewhat flat, approximately 2-2.5 inchs. There were about 8 eggs inside. The sacs were strung together by a membrane. The size of the pearl-like eggs would be fitting considering that ascaris worms are larger than other nematodes. When I did research on what I found, I had learned that when eggs are in sacs, they are fertilized by a male worm. Supposedly, male worms don't exist in the body but the question does arise, how is it possible to have fertilized eggs if males don't exist? I haven't observed unfertilized eggs, but I'm assuming that the pearl-like eggs when mature might exist freely and are in embedded in feces.