Cheeks are well developed. There is a minimum of falling away under the eye, giving a moderately chiseled look. Lips are tight and darkly pigmented. The Russell Terrier has a complete set of comparatively large, evenly spaced, white teeth meeting in a scissors bite. The nose is black and fully pigmented.
Eyelids are tight.
Eyerims are black. The Russell Terrier has small, V-shaped button or drop ears of great mobility. Ear leather is soft and fine. Dogs with button or drop ears may occasionally hold an ear erect. This shall be severely penalized in the show ring but does not disqualify the dog for registration purposes.