ID Please?

[ronaldpa2]

What is this please?

 

[AMDPhenomX4]

A sea cucumber? Does it move or open up? That looks pretty close to a sea cucumber mouth.

 

[ronaldpa2]

It does open and close but does not come off that rock it came with it ? Dont they move around in the sand and stuff?

 

[Kurt_Nelson]

A closed up ricordea mushroom? What does it look like when it's open?

 

[ronaldpa2]

Does not open much morethan that?

 

[Kurt_Nelson]

Oh. Not sure what it is if that's "open".

 

[roka64]

Does it send out tentacles?

 

[ronaldpa2]

No it does not.