Though closely similar, it is a distinct and different breed from the Parson Russell Terrier.
It derives from dogs bred and used for fox-hunting in North Devon in the early nineteenth century by a country parson, Jack Russell – for whom the breed is named – and has similar origins to the modern Fox Terrier. It is principally white-bodied and smooth-, rough- or broken-coated, and can be any colour. The Jack Russell Terrier is a British breed of small terrier. Predominantly white, with patches of tan or black