The Irish Water Spaniel, also known as the Bog Dog, the Rat Tail Spaniel, the Shannon Spaniel, and the Whiptail, is a breed of dog in the Sporting Group. The intelligent and companionable Irish Water Spaniel is known for their unique hairless tail and their tight water resistant curly coat. This breed was recognized by the AKC in 1884 and AKC approved in 1990.
The Irish Water Spaniel is the largest and one of the oldest spaniels, as well as the most rare. They are stout and cobby dogs native to Ireland. The dog breed is strongly built, taller and more squarish than other spaniels. There is a curly topknot on the head, the face is smooth. The most distinguishing characteristic of these dogs is their medium length "rat-like" tails, which are a striking contrast to their otherwise curly coats.