What is this?

[navvet8992]

Anyone know what this thing is? I just noticed it a few days ago growing on a rock. Looks like an anemone of some sort.

 

[shakacuz]

can't tell as its closed. does seem like an anemone going off of the one "tentacle"

 

[jeanjo85]

Looks like a closed up anemone to me. Check on it later on to see if anything has changed