nautilus-dbg 1:3.1.3-0ubuntu2 (i386 binary) in ubuntu oneiric

 Nautilus is the official file manager for the GNOME desktop. It allows
 to browse directories, preview files and launch applications associated
 with them. It is also responsible for handling the icons on the GNOME
 desktop. It works on local and remote filesystems.
 .
 Several icon themes and components for viewing different kinds of files
 are available in separate packages.
 .
 This development package contains unstripped binaries compiled with
 debugging symbols needed by gdb.