ID Please

[codytx]

I was wondering if anyone could ID this hitchhiker. I am pretty sure it's an anemone, but I wanted to know if i should get rid of it. It mostly stays closed up, and I have a better picture of that that I will post.
Thx.
Cody

 

[codytx]

Picture when it is all closed.

 

[viper_930]

Looks like majano to me.

 

[codytx]

This is white, almost translucent tentacles. From what I read mejano's are green?

 

[thomas712]

No not Majano,
It looks like a member of the Jewel anemone family. I have several of them, mine are clear/white with those knobs on the end, but many of them can have some really neat colors to them in the wild. Consider it a harmless filterfeeder. Mine have yet to cause any problem or become a pest in anyway.
They seem to shy away from light, and are normally fully exposed in the night time. Maybe tonight if you want I'll see if I can get some pics of them.
Thomas

 

[cathbad]

Is it on rock from the Gulf? These are Phyllangia americana. They are ahermatypic and aposymbiotic corals.

 

[codytx]

That's it exactly..my pictures just aren't as good as this. Thx a bunch.

 

[bang guy]

Commonly called Hidden Cup Coral.

 

[007]

I think that they are actually called Astrangia (or hidden cup )

 

[cathbad]

From what I can gather Astrangia tend to be less gregarious, although they do appear in groups they are spaced farther apart, being more "solitary", for lack of a better word. They are also slightly smaller. Phyllangia however are found in very close groups, often being so close together that the corallite does not grow into a circle but rather deformed, more oval shape.
I have been researching this for some time now and have found very little information about these corals.