The famed six-toed cats at Ernest Hemingway's Key West home aren't going anywhere.

The Ernest Hemingway Home and Museum has an agreement with the federal government that will allow it to keep the 50 cats and let them roam the grounds. The U.S. Department of Agriculture issued the museum an animal exhibition license after a five-year fight.

The agency had threatened to fine the museum $200 per day per cat, saying the museum didn't have the proper permit and didn't meet federal animal exhibition standards.

The cats are descended from "Snowball," a feline given the novelist in 1935. He wrote "For Whom the Bell Tolls" and "To Have and Have Not" while living at the home. The museum announced the agreement Thursday.