Help ID this snail thing

[Luke Schnabel]

Just as the title says. I found this little snail looking thing on my glass and it’s the first time I’ve ever seen one in over 5 years.

 

[IForgotpants]

Looks kinda like stomatella snail...I probably spelled that wrong. I've had a few in my tanks over the years.

 

[ahiggins]

It doesn’t look like stomatella. They have little half shells.
These look like nudis of some sort. I’ve had the pink good ones in the past but not sure about the brown guys.

 

[Dancingmad]

I'm got good at these sluggy critters, but my guess is maybe some sort of sea hare.

 

[taricha]

Sea slug of some kind. Macroalgae / seaweed eater.
Better pic and sometime can get more specific.