BREED STANDARD
JACK RUSSELL TERRIER
AUSTRALIAN NATIONAL KENNEL COUNCIL 1990
Country of Development - Australia.
Amended May 2001
GENERAL APPEARANCE: A strong, active, lithe working Terrier of great character
with flexible body of medium length. His smart movement matches his keen
expression. Tail docking is optional and the coat may be smooth, rough or broken.
CHARACTERISTICS: A lively, alert and active Terrier with a keen, intelligent
expression.
TEMPERAMENT: Bold and fearless, friendly but quietly confident.
HEAD AND SKULL: The skull should be flat and of moderate width gradually
decreasing in width to the eyes and tapering to a wide muzzle with very strong
jaws. There should be a well defined stop but not over pronounced. The length
from the stop to the nose should be slightly shorter than from the stop to the
occiput with the cheek muscles well developed. The nose should be black.
EYES: Small dark and with keen expression. MUST not be prominent and eyelids
should fit closely. The eyelid rims should be pigmented black. Almond shape.
EARS: Button or dropped of good texture and great mobility.
MOUTH: Deep wide and powerful jaws with tight-fitting pigmented lips and strong
teeth closing to a scissor bite.
NECK: Strong and clean allowing head to be carried with poise.
FOREQUARTERS: Shoulders well sloped back and heavily loaded with muscle.
Forelegs straight in bone from the shoulder to the toes whether viewed from the
front or the side and with sufficient length of upper arm to ensure elbows are
set under the body with sternum clearly in front of shoulder blades.
BODY: Chest deep rather than wide, with good clearance and the brisket located
at the height midway between the ground and the withers. The body should be
proportioned marginally longer than tall, measuring slightly longer from the
withers to the root of the tail than from the withers to the ground. Back level.
Ribs should be well sprung from the spine, flattening on the sides so that the
girth behind the elbows can be spanned by two hands-about 40cms to 43cms. The
loins should be short, strong and deeply muscled.
HINDQUARTERS: Strong and muscular, balanced in proportion to the shoulder, hind
legs parallel when viewed from behind while in free standing position. Stifles
well angulated and hocks low set.
FEET: Round, hard, padded, not large, toes moderately arched, turned neither in
nor out.
TAIL: May droop at rest. When moving should be erect and if docked the tip
should be on the same level as ears.
GAIT/MOVEMENT: True, free and springy.
COAT: May be smooth, broken or rough. Must be weatherproof, preferably unaltered.
COLOUR: White must predominate with black and/or tan markings. The tan markings
can be from the lightest tan to the richest tan (chestnut).
SIZE: Ideal Height: 25cms (10ins) to 30cms (12ins). The weight in kg being
equivalent of 1 kg to each 5cms in height, i.e. a 25 cm high dog should weigh
approx. 5 kg and a 30cm high dog should weigh 6 kg.
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. However, the following weaknesses should be in exact
proportion to its degree.
(a) Lack of true Terrier characteristics.
(b) Lack of balance, i.e.over exaggeration of any points.
(c) Sluggish or unsound movement.
(d) Faulty mouth.
NOTE - Male animals should have two apparently normal testicles fully descended
into the scrotum.