ID please. This is an old pic but it is a cold case.

[Jay_M]

This pic is from a few years back but I never got a definite answer on what this was. It was a hitchhiker that came with 2 other corals on a rock. When it came, it was completely flat against the rock and literally snuck in.

Any suggestions are def welcome!

 

[Tori]

Kind of looks like a mushroom. Hard to tell though.

 

[Jay_M]

I think I posted this in the wrong place, moving this to the ID forum instead of database forum.