Help ID this anenome / softie pics

[TiGs]

Hi all,

I got some live rock and found this creature on it. The diameter is about the same as the top of a ballpoint pen cap. It does travel on the rock at an almost unoticable speed. There are these tiny bumps around the top ridge.

 

[TiGs]

another pic

 

[Anonymous]

the second pic looks alot like a 'contracted' aiptasia