The canine teeth should be as widely separated as possible. The incisors (6) should all be in one row, with no projection of the middle teeth. In the upper jaw they should be slightly concave. In the lower they should be in a straight line. Both jaws should be very wide in front; bite powerful and sound, the teeth set in the most normal possible arrangement. The lips complete the formation of the muzzle. The upper lip should be thick and padded and fill out the hollow space in front formed by the projection of the lower jaw and be supported by the fangs of the jaw. These fangs must stand as far apart as possible and be of good length so that the front surface of the muzzle becomes broad and almost square; to form an obtuse (rounded) angle with the top line of the muzzle. The lower edge of the upper lip should rest on the edge of the lower lip. The repandous (bent upward) part of the under-jaw with the lower lip (sometimes called the chin) must not rise above the front of the upper lip. On the other hand, it should not disappear under it. It must, however, be plainly perceptible when viewed from the front as well as the side, without protruding and bending upward as in the English Bulldog. The teeth of the under-jaw should not be seen when the mouth is closed, neither should the tongue show when the mouth is closed.
