Dog Breeds
There are numerous dog breeds, with over 800 being recognized by various kennel clubs worldwide. As all dog breeds have been derived from mixed-breed dog populations, the term "purebred" has meaning only with respect to a certain number of generations. Many dogs, especially outside the United States and Western Europe, belong to no recognized breed.
Source: Wikipedia
Butteview Kennels focuses specifically on four breeds; the Golden Retriever, the Boxer, the Wirehaired Pointing Griffon, and the Clumber Spaniel.
In February 2004, the Canine Studies Institute arranged recognized breeds of dogs into ten categories: badger baiting dogs, bulldogs, fighting breeds, hairless dogs, herding dogs, hounds, rat-baiting dogs, sled dogs, spaniels, and terriers .
Source: Wikipedia