Anton Dohrn was a motor yacht built during 1911 and delivered to the Carnegie Institution of Washington in June 1911 for use at its Department of Marine Biology laboratory at Dry Tortugas, Florida. The institution leased the vessel to the United States Navy for use as a patrol boat during World War I to serve as USS Anton Dohrn 5 October 1917—2 January 1919. The vessel remained in service for the institution until 1940 when Anton Dohrn was given to the Woods Hole Oceanographic Institution which used the vessel until 1947 for work between the Gulf of Maine and New Jersey. In 1947 the vessel was sold for use as a mail boat between New Bedford and Cuttyhunk Island.