Correct Rectangular Silhouette
From FCI JRT Standard:
The taller, more squarely built dog is now known as the Parson Russell Terrier and the shorter, slightly longer proportioned dog, is known as the Jack Russell Terrier.
GENERAL APPEARANCE : A strong, active, lithe working Terrier of great character with flexible body of medium length.
BODY :
General : Rectangular.
Back : Level. The length from the withers to the root of tail slightly greater than the height from the withers to the ground.
FAULTS : Any departure from the foregoing points should be considered a fault and the seriousness with which the fault should be regarded should be in exact proportion to its degree. and its effect upon the health and welfare of the dog. However, the following weaknesses should be particularly penalised:
- Lack of true Terrier characteristics.
- Lack of balance, i.e. over exaggeration of any points.
- Sluggish or unsound movement.