Christmas Favia or....

[sfsuphysics]

What I've called the "Underoos" favia...

Just got a piece of the xmas one, smaller of two pieces obviously, but I'm still leaning towards my underoos!

 

[GMAX]

Good chance that is a monastrea. Very nice looking and close to a favia.

 

[jjmcat]

Looks like the favia I have.