I.D. Please

In a peice of LR there is a thick tube like spiral shell and what looks like to be a large snail head poking in and out. Ive only noticed this creature recently due to what looks like webs. Looks like it shoots out some kinda slime and makes a web?? i dunno looking for some input maybe some one eles has these??



best pics i could get.

 

lovely vermetid snail

 

Vermetid snail. Annoying because they can put webs on corals, but otherwise they are harmless.

 

I have a couple of these on a rock with some zoas. I've had them about 1 mth. I have no idea what they are but they have caused no harm yet. They do create a lot of that web and it sort of covers up some of the zoas, but no big deal really.

 

Huh 3 responses at once.

 

Vermetid snail

 

thx all