USCGC Triton (WPC-116), a steel-hulled, diesel-powered Thetis-class patrol boat of the United States Coast Guard, was the fourth commissioned ship of the United States to be named for Triton, a Greek demigod of the sea who was the son of Poseidon and Amphitrite. She served almost simultaneously with the submarine of the same name. Today, she serves as a tour boat in New York City for Circle Line Sightseeing Cruises, and carries the name Circle Line XVII.
The Island-class patrol boat is a class of cutters of the United States Coast Guard. 49 cutters of the class were built, of which 3 remain in commission. Their hull numbers are WPB-1301 through WPB-1349.
The Medium Endurance Cutter or WMEC is a type of United States Coast Guard Cutter mainly consisting of the 270-foot (82 m) Famous- and 210-foot (64 m) Reliance-class cutters. These larger cutters are under control of Area Commands. These cutters have adequate accommodations for crew to live on board and can do 6 to 8 week patrols.
The Sentinel-class cutter, also known as the Fast Response Cutter due to its program name, is part of the United States Coast Guard's Deepwater program. At 154 feet (46.8 m), it is similar to, but larger than, the 123-foot (37 m) lengthened 1980s-era Island-class patrol boats that it replaces. Up to 71 vessels are to be built by the Louisiana-based firm Bollinger Shipyards, using a design from the Netherlands-based Damen Group, with the Sentinel design based on the company's Damen Stan 4708 patrol vessel. The Department of Homeland Security's budget proposal to Congress, for the Coast Guard, for 2021, stated that, in addition to 58 vessels to serve the Continental US, they requested an additional six vessels for its portion of Patrol Forces Southwest Asia.
United States Coast Guard Cutter is the term used by the U.S. Coast Guard for its commissioned vessels. They are 65 feet (19.8 m) or greater in length and have a permanently assigned crew with accommodations aboard. They carry the ship prefix USCGC.
USCGC Thetis (WMEC-910) is a United States Coast Guard Famous-class medium endurance cutter. She is the 10th ship of the Famous Class cutters designed and built for the U.S. Coast Guard and the third Coast Guard cutter to bear the name. Laid down August 24, 1984 by Robert Derecktor Shipyard Incorporated of Middletown, Rhode Island. She was launched April 29, 1986 and named for the cutters USRC Thetis, which served from 1899 to 1916, and USCGC Thetis (WPC-115), which served from 1931 to 1947. The Greek goddess Thetis, incidentally, was the mother of Achilles. The Famous Class cutter Thetis was commissioned on June 30, 1989. She conducts patrols throughout the Caribbean and the Gulf of Mexico.
USCGC Cape Henlopen was a 95-foot (29 m) type "C" Cape-class cutter constructed at the Coast Guard Yard at Curtis Bay, Maryland in 1958 for use as a law enforcement and search and rescue patrol boat.
The third USS Calypso (AG-35) was launched 6 January 1932 for the United States Coast Guard as USCGC Calypso (WPC-104) by the Bath Iron Works in Bath, Maine. She was initially stationed at San Diego, California, and transferred to Baltimore, Maryland in 1938. She was transferred from the Coast Guard to the U.S. Navy on 17 May 1941 and commissioned the same day.
The Active-class patrol boat was one of the most useful and long-lasting classes of United States Coast Guard cutters. Of the 35 built in the 1920s, 16 were still in service during the 1960s. The last to be decommissioned from active service was the Morris in 1970; the last in actual service was the Cuyahoga, which sank after an accidental collision in 1978.
USCGC Argo (WPC-100) was a Thetis-class patrol boat belonging to the United States Coast Guard launched on 12 November 1932 and commissioned on 6 January 1933.
USCGC Benjamin Dailey (WPC-1123) was the United States Coast Guard's 23rd Sentinel-class cutter. She was the first cutter of her class stationed in the Coast Guard's Eight District, with a homeport in Pascagoula, Mississippi.
USCGC Joseph Gerczak (WPC-1126) is the 26th Sentinel-class cutter built for the United States Coast Guard. She is one of three Fast Response Cutters homeported in Honolulu, Hawaii.
USCGC Forrest Rednour (WPC-1129) is the 29th Sentinel-class cutter built for the United States Coast Guard. She was the first of the four vessels of her class to be home-ported at USCG Base Los Angeles/Long Beach in San Pedro, California. Other sister ships have been based in Florida, Mississippi, Puerto Rico, New Jersey, North Carolina, Hawaii, and Alaska prior to Forrest Rednour's assignment to Base LA/LB. Sister ships Robert Ward (WPC-1130), Terrell Horne III (WPC-1131), and Benjamin Bottoms (WPC-1132) soon joined her at Base LA/LB.
USCGC William Sparling (WPC-1154) is the United States Coast Guard's 54th Sentinel-class cutter.
USCGC Glen Harris (WPC-1144) is the United States Coast Guard's 44th Sentinel-class cutter.
USCGC Thetis (WPC-115), a steel-hulled, diesel-powered Thetis-class patrol boat of the United States Coast Guard.
USCGC Atalanta (WPC-102) was a 165-foot (50 m), steel-hulled, diesel-powered Thetis-class patrol boat of the United States Coast Guard.
USCGC Aurora (WPC-103) was a 165-foot (50 m), steel-hulled, diesel-powered Thetis-class patrol boat of the United States Coast Guard.
USCGC Thetis may refer to more than one ship of the United States Coast Guard:
United States Coast Guard 
