The back should be strong, straight and , in comparison to the height of the terrier, give a balanced image. The loin should be slightly arched. Looking from behind, the hocks must be straight. Smooth, without being so sparse as not to provide a certain amount of protection from the elements and under-growth. Rough or broken coated, without being wooly.
Brindle markings are unacceptable.
Movement should be free, lively, well coordinated with straight action in front and behind. Personality Courageous, devoted, obedient, lively, and highly intelligent. Uses Like all small terriers, it has been used for hunting small game in its lair. It was especially appreciated for the ability and rapidity with which it could burrow into even small holes. A rather rare terrier, it has passed into the ranks of the companion dog.