I was doing my morning, peer in and see if I can catch anything weird and glanced over it once before I was like, WHOA! Poor thing looked like it was trying to give birth. That nem was scrunched up the size of a quarter and came to Blue Planet on some live rock. She hooked me up by chiseling it off and we got it home and it opened up like that! It's of course several inches bigger now, but was definitely a cool hitchiker.