Brown Circle ID plz

[justinfreeburg]

I found this brown circle on my glass and I am wondering what it is.

 

[Reefing_addiction]

Interesting but I have no idea
Bump for you

 

[DJF]

Is it part of a dead snail?

 

[Shon]

It does look like a snail's foot plate.

 

[justinfreeburg]

It could be. I saw it and it just looked so strange. I have looked everywhere for something about it. Well thanks for your guy’s input.

 

[homer1475]

Opperculum.

Meaning "little lid", or better known as the shell that closes a snails shell.

 

[Dan_P]

Is it part of a dead snail?

Yes