Coral ID

[Borsalino]

This coral grows on a fragstone next to the Caulastrea.

Feels like a leather.
It's left from the Caulastrea, can not take a better picture.

It looks like a Alveopora, if I touch it nothing happens .

It's grow very slow.

 

[James M]

You’re right it’s a alveopora

 

[Borsalino]

But it does not shrink if I touch.

And it has 7 or 8 tentacles, alveopora has 12.

 

[DSC reef]

Can you get a few more pics? Does it have a hard base?

 

[Peter K]

If you can, count the “petals” on each polyp. Alveopora have 12 petals per polyp.

 

[Borsalino]

Can't see or feel a hard base.

The coral is between the rock and Caulastrea.
Difficult to view properly.

The best shot..................

 

[Borsalino]

Seem likes on a Japanese toadstool?

 

[DSC reef]

If there's no hard base then it's not a type of alevopora. Could be a long polyp toadstool, not sure though.

 

[Borsalino]

I try to make a picture with a endoscoop, picture are bad.

But, by the light of the endoscope responded the polyps on it and shrink.

With the endoscope i see a creamy round-flat base.