Irish Setter

The Irish Setter was a breed of domesticated dog, originating from Ireland, on Earth.

In 2369, Q turned Doctor Beverly Crusher into an Irish Setter when he grew impatient with her. Amanda Rogers turned her back into a Human, however. 

In 2371, Captain Kathryn Janeway owned an Irish Setter named Mollie which had puppies shortly after she left Earth to command the USS Voyager. 

Q later tried to persuade Captain Janeway to mate with him by conjuring up a puppy. The female Q later referred to Janeway as "the dog."