ラッセル・テリア
From the southern part of England have come the white fox-working dogs whose origins are the same as those of the Jack Russell Terrier. Kennel Club breeds derived from these mainly-white coated dogs include the Smooth Fox Terrier, the Wire Fox Terrier, the Sealyham Terrier and (most recently), the Parson Russell Terrier and Russell Terrier. None of these Kennel Club breeds are commonly found working in the field today.