The muzzle is parallel to the top of the skull, both of which are flat. The lips are clean and lie close to the jaws. The jaws are well filled and denote power. A full complement of strongly developed teeth meet in a true scissors bite. The nose is black in black dogs, dark brown in red dogs, dark gray in blue dogs and dark tan in fawns.
Eye colors range from medium to dark brown in black dogs.
In blue, red, or fawn dogs, the color of the iris should blend with that of the markings. Darker shades are preferred. Light eyes in black dogs. May be erect or natural. The natural, uncropped ears should never be penalized.