I saw it too... pushing it seems to do nothing.
There is also an added "Pod Key" in the elaborate box in that room... also doesn't seem to have any place where it can be used. None that I have found, anyway.
I'm pretty sure that Pod Key title is some kind of placeholder as it has the same icon and description as one of the weird gooey things you pick up elsewhere in the nautiloid. I can't remember exactly but it's one of the shells I think.
Edit - Sodalite shell
