That bug has been opened on https://launchpad.net/distros/ubuntu/+source/gnome-panel/+bug/44744

"...
On the GNOME main menu, when going to Places>Removable Media, where the list of removable volumes is shown, there is no icon next to "Removable Media".

Since all other entries in the GNOME menu have icons next to the text, I think it would make sense for the Places>Removable Media entry to be consistent with the other menus.
...
> Can you make a screenshot fo that?
...
http://librarian.launchpad.net/2693243/Screenshot-2.png
This is what I was refering to.

I think the menu would be more consistent with the other entries if it had an icon."

from panel-menu-items.c:

"		/* FIXME: find nice icons. We don't use NULL since it will
		 * make the menu items smaller... */
		if (connected_volumes) {
			title = _("Network Places");
			icon = "gnome-fs-bookmark";
		} else {
			title = _("Removable Media");
			icon = "";
		}"