Anyone know what this is?

[Justin1997]

Sorry for bad pic it looks about 4" long can't tell how far it goes back into my rock though

 

[ca2or]

Have you touched it? Looks like a piece of hose or something.

 

[BTA Love]

Does it move? Retract?

 

[Justin1997]

I tried ticking it out and it ripped really easily was fleshy and the piece of it got away into my rocks

 

[Justin1997]

Pull it out* don't know what wonder what my auto correct did there lol

 

[BTA Love]

Do you think that maybe there is a clam in your rock and that was the tongue? I have never had clams but I have heard of people getting rock and a clam being inside.