Irish terrier, a breed of hardy working terrier developed in the British Isles and believed to be one of the oldest terriers. It stands about 18 in. (46 cm) high at the shoulder and weighs fro...

Fox terrier, breed of long-legged terrier developed over several centuries in England. There are two varieties, the smooth and the wirehaired. The coat of the former is dense, short, and flat,...

Welsh terrier, breed of medium-sized terrier developed in Wales more than a century ago. It stands about 15 in. (38 cm) high at the shoulder and weighs about 20 lb (9 kg). Its close-lying, har...

Skye terrier, breed of sturdy, short-legged terrier developed in the northwestern islands of Scotland more than four centuries ago. It takes its name from the principal island in the group. Th...

Australian terrier, breed of small, hardy terrier perfected in Australia c.1885. It stands about 10 in. (25.4 cm) high at the shoulder and weighs from 12 to 14 lb (5.5–6.4 kg). Its weather-res...

Bull terrier, breed of large, muscular terrier originating in England around 1835. It stands from 19 to 22 in. (48.3–55.9 cm) high at the shoulder and weighs from 30 to 36 lb (13.6–16.3 kg). I...

Sealyham terrier, breed of short-legged terrier developed in Wales in the second half of the 19th cent. It stands about 10 in. (25 cm) high at the shoulder and weighs about 20 lb (9 kg). Its w...

Lakeland terrier, breed of strong working terrier developed in the 18th and 19th cent. in the Lake District of England. It stands about 14 in. (35.6 cm) high at the shoulder and weighs about 1...

Staffordshire terrier, breed of strong, muscular terrier developed in England in the early 19th cent. It stands from 17 to 19 in. (43.1–48.3 cm) high at the shoulder and weighs from 35 to 50 l...

Manchester terrier, breed of sleek, alert terrier developed in England in the 19th cent. There are two varieties, the standard and the toy (see toy dog). The standard variety stands from 14 to...