Between St. John's water dog and the Polish Hunting Dog which was known to be a landrace bred for a specific purpose?
St. John's water dog The St. John's water dog, also known as the St. John’s dog or the lesser Newfoundland, was a landrace (a dog bred for a purpose, not pedigree or appearance) of domestic dog from Newfoundland. Little is known of the types that went into its genetic makeup, although it was probably a random-bred mix of old English, Irish and Portuguese working dogs. The number of St. John's water dogs started declining by the start of the 20th century. By the early 1980s, the variety was extinct.
Landrace pig The term Landrace pig or Landrace swine refers to any of a group of standardized breeds of domestic pig, and in this context the word "Landrace" is typically capitalized. The original breed by this name was the Danish Landrace pig, from which the others were derived through development and crossbreeding. The breed was so-named because the foundation stock of the Danish Landrace were specimens from the local, free-breeding, non-pedigreed stock of swine, i.e. the regional landrace native to Denmark. The modern breeds are not themselves landraces, since they are formal breeds maintained through selective breeding rather than natural selection. The establishment and spread of the Danish breed gave the word "landrace" to the English language (it had already existed in Danish, German, Dutch and some other Germanic languages). Sources from the mid-20th century often mean the Danish Landrace swine in particular when referring to "Landrace" pigs, as most of the others had not been developed yet.