Anybody know what this is?

[BenHyder]

Found this on a rock of zooanthids I recently bought, it's the thing with the mouth that kind of blends in with the rock. Anyone know what this is?

 

[cloak]

It looks like a Sea Squirt/Tunicate to me.

 

[cameronh]

Found this on a rock of zooanthids I recently bought, it's the thing with the mouth that kind of blends in with the rock. Anyone know what this is?

What zoanthids are those?

 

[BenHyder]

I don't really know. I got the whole rock from a friend for only $40. If anyone can figure out what they are it would be much appreciated.