Creature ID

[TonyHNY]

I just found this guy hanging around my corals..Any idea what this is? Thanks!

 

[KathyC]

There is too much 'meat' on there for it to be a Stomatella. I'd lean more toward some sort of Nudi...or a broken off piece of sponge.
Can you get a pic of the other side of this critter?
Is that on the glass on just hanging on that tube worm? Does it move at all?

 

[TonyHNY]

Hi! definitely not a Stomatella (They have a halve shell?)....Not a sponge because it was moving....is it a Nudi? I've attached another photo for you. It just so happen that he was out today All my corals are still alive so hopefully that's no part of his diet...

Thanks!

There is too much 'meat' on there for it to be a Stomatella. I'd lean more toward some sort of Nudi...or a broken off piece of sponge.
Can you get a pic of the other side of this critter?
Is that on the glass on just hanging on that tube worm? Does it move at all?

 

[KathyC]

ahhh..looks like a bouncing baby sea slug..now to try and identify which type! lol
http://www.seaslugforum.net/

Have at it! Easier for you to tell as you can see him more clearly. Do let us know if you can ID him in that link!!

..and yes, stomatellas have that little half shell.