Anemone Like Creature I.D. Please

[VengefulNemesis]

Does anyone know what this anemone looking creature is? It will catch particulate with it's tentacles, and then put the tentacle all the way in it's mouth and "lick it's finger". If I touch it it will instantly retract completely. It hasn't harmed anything, just curious what it is.

 

[Ron Popeil]

i have two filter feeding cucumbers that have mouth parts very similar to that. id be willing to bet that the branches are pulled inward every few moments as it feeds.

very cool!

 

[VengefulNemesis]

Yes, it does pull the branches in every few seconds and "licks" them clean. It is pretty cool to watch, thank s alot for the help Ron Popeil, I'm off to Google filter feeding cucumbers.