ID help?

[Collinrb]

I was at the LFS and bought a 10 dollar polyp and what I was told was a small mushroom on top. after a week, I'm not sure if it really is a mushroom. Can anyone confirm this?

The top left. This is a photo of right after putting it into the tank. Since, it has inflated quite a bit. Never seen such a bubbly mushroom if that's what it is

 

[kingfisher62]

Could be a mojano anemone or a possibly a ricordea or rhodactis shroom i have had them both inflat like that. Can you get another angle shot hopefully showing the mouth?