A lump on Catalaphyllia jardinei

[oston]

I found this weird lump on my Catalaphyllia jardinei. What could it be?

http://i1252.photobucket.com/albums/hh570/azerbai/Catalaphyllia1.jpg

http://i1252.photobucket.com/albums/hh570/azerbai/Catalaphyllia2.jpg

[LeLutinBanni]

It's mesenterial filaments.

[elegance coral]

^^^^ Yep.

It's mouth is enlarged as well. She's not happy about something. Are there any soft corals near by, or critters that may pick at it?

[oston]

The picture was taken on feeding time, maybe that's why the mouth is open. I don't think it usually is. I don't think anyone is picking on it, at least I haven't seen that happening (there should be no fishes or invertebrates that would..).
I don't know if they have a war going on, there is a sarco on the next rock up (the elegance coral is on the sand) but it's not very close.