AKC STANDARD:

Clarification:The muzzle, being approximately one-half of the face, is extremely important. It should be as flat as possible when viewed in profile. The cushioning of the muzzle should appear to be equal to the width of the skull. The underjaw is wide and deep and creates a definite chin. The upper lips should be full but not so long as to hide the chin or hang below the jaw. The muzzle should neither fall away under the eyes nor distort head balance into an elongated rectangle.

INCORRECT Too lippy	INCORRECT Falls away under the eyes	CORRECT Good fill under the eyes with wide balanced muzzle

CORRECT	INCORRECT Lips too long, face not flat in profile (too much nose)