Products of dmgmount.sourceforge.net
Utilities \ Misc. Utils.
DMG Automounter is a nautilus script that enables any distribution of Linux to mount a Mac OS X .dmg file (but not install it, since that would require the Mac OS X APIs which are closed source). README has entire install instructions. PLEASE DONATE!.
Freeware download of DMG Automounter for Linux 0.2, size