Sea slug?

[FunWithFishes]

So I came home today and noticed a little critter crawling around my live rock. He had little antenna and eyes like a snail, but no shell and looked like a blob. I'm not entirely sure what a sea slug looks like since all that comes up in Google is nudibranches. Can anyone confirm what he is for me? I apologize for the quality but he's in the middle and quite small. If better pictures are needed I can look for my camera.

 

[Highgrade]

Stomollia snail= good

 

[Mike N]

Stomollia snail= good

+1 "Stomatella"