What is dog from labrynth?

In the movie "Labyrinth," the dog's name is Merlin and he is portrayed as an enthusiastic and loyal companion to the main character, Sarah. He is a Border Terrier and is known for his intelligence, energy, and affectionate nature. Border Terriers were originally bred for hunting and are characterized by their tenacity, agility, and ability to work independently. In the movie, Merlin is shown using his keen sense of smell to help guide Sarah through the labyrinth and ultimately aid in defeating the Goblin King.