Do both Landseer and Wetterhoun breeds go by different names?
Wetterhoun The Wetterhoun (FCI No.221, translated into English as the Frisian Water Dog) is a breed of dog traditionally used as a hunting dog for hunting small mammals and waterfowl in the province of Fryslan in the Netherlands. The name of the dog comes from the West Frisian "Wetterhûn" meaning "water dog." Plural of Wetterhoun is Wetterhounen in Dutch. The breed may also be called the "Otterhoun" (not to be confused with the Otterhound) or "Dutch Spaniel", although it is not a Spaniel-type dog.
Tweed Water Spaniel The Tweed Water Spaniel, or Tweed Spaniel, is a breed of dog extinct since the 19th century. It is best known for being involved in the early development of the modern Curly Coated Retriever and Golden Retriever breeds of dogs. They were described as a generally brown athletic dogs from the area around Berwick-upon-Tweed near the River Tweed and close to the Scottish Borders. A type of water dog, the breed was not well known outside the local area. This breed may have been created by crossing local water dogs with imported St. John's water dog, another breed which is also now extinct.