what kind of coral is this??

[Mr.MDX]

Can anyone tell me what type of coral this is on the attached picture?

Its the one on the very far right the large yellow one.

[Lampshade]

Looks like a yellow toadstool leather.

like this, just much bigger.
http://www.thereeftank.com/gallery/files/2/1/9/3/1/yellow_leather_coral.jpg

[Mr.MDX]

Thanks!