Bubble coral? But what is its real name?

[fours2many]

This a lime green bubble coral. It grows in a mat, instead of a wall or branching. The mat has about 30 individual mouths with clusters of bubbles surrounding each mouth.
Any idea of the species name?

Thanks!

http://i137.photobucket.com/albums/q224/fours2many/50%20gallon%20tank/IMG_0708.jpg

http://i137.photobucket.com/albums/q224/fours2many/50%20gallon%20tank/IMG_0709.jpg

[fours2many]

found it all on my own...:D

Physogyra lichtensteini