Can anyone ID

[40breederzach]

These were on a zoa frag they wouldn’t open fully for months the first one fell off in a revive bath the second was in like a spiroid shell but it was half the size of the plug I thought it was a piece of rock on the plug. Then I crushed it and that fell out.

 

[Lovemyreef2015]

The one in the spoon could be a dorvilleidae. Second one is to damaged for me to ID

 

[40breederzach]

The second one would also put out a slime of some sort that looked like if a coral was upset the slime they would put out.

 

[Act1n1c_L1fe]

Seems like a vermetid snail in second picture. First picture looks like the vermetid snail out of its shell. They do throw out a web when the water is disturbed