Head large and square. Eyes dark in color, wide apart, set low down in the skull, as far from the ears as possible, round in form, of moderate size, neither sunken nor bulging. In lighter colored dogs, lighter colored eyes are acceptable. No haw and no white of the eye showing when looking forward. Ears Known as the bat ear, broad at the base, elongated, with round top, set high on the head but not too close together, and carried erect with the orifice to the front. The leather of the ear fine and soft. Other than bat ears is a disqualification. The top of the skull flat between the ears; the forehead is not flat but slightly rounded. The muzzle broad, deep and well laid back; the muscles of the cheeks well developed. The stop well defined, causing a hollow groove between the eyes with heavy wrinkles forming a soft roll over the extremely short nose; nostrils broad with a well defined line between them. Nose black. Nose other than black is a disqualification, except in the case of the lighter colored dogs, where a lighter colored nose is acceptable but not desirable. Flews black, thick and broad, hanging over the lower jaw at the sides, meeting the underlip in front and covering the teeth, which are not seen when the mouth is closed. The underjaw is deep, square, broad, undershot and well turned up.