There is a marked difference in appearance between the sexes. Wide between the ears, and a somewhat domed skull. The stop is clearly defined, but should not be too pronounced. Cheeks are flat. The bridge of the nose and the skull should be, seen in profile, as parallel as possible.
Muzzle is rather short, tapering evenly toward the nose seen both from the side and from above.
The nostrils are well developed. The color of the lips and the muzzle shall be black except on chocolate brown and light fawn dogs, where brown is permitted. The eyes shall be of medium size and almond shaped. The color shall be dark, but may be lighter according to the color of the dog. Yellow is not acceptable.