[2] Amphitrite shared with the sloop Fairy, and the cutters Griffin, Flying Fish, Sprightly, and Wells, in the capture on 24 May of the French privateers Dunkerque and Prince de Robcq, which had "eight ransomers" aboard.

She was among the vessels sharing in the proceeds of the capture in January 1780 of the brig Kitty and the ship Jolly Tar.

In June 1781 Admiral Mariot Arbuthnot sent Amphitrite and several other vessels to attempt to intercept some French reinforcements from entering Boston.

[6] One month later, on 30 July, Medea, Amphitrite, and the armed ship General Monk shared in the capture of the schooner Neptune.

[5] On 7 September 1781 Medea captured Belisarius, "a fast sailing frigate of 26 guns and 147 men, belonging to Salem".

Biggs mentioned that together with the armed ship General Monk, Amphitrite had captured four prizes.

On 12 November, Amphitrite captured the brig Adventure, the schooner Salisbury, the ship Rattlesnake, and the sloop Phoenix.

[17] Amphitrite alone captured the ship Salem Packet, the brigs Amsterdam, Dolphin, and Minerva, and the sloops Dove and Fox.

[18] American records show that in late January 1783, Amphitrite, Captain Robert George, captured the former Massachusetts privateer and now letter of marque Apollo.

Amphitritie was recommissioned in April 1793 with the outbreak of the French Revolutionary Wars, under Captain John Child Purvis.

On 30 January 1794 Amphitrite was wrecked after striking an uncharted submerged shoal whilst entering Leghorn harbour.

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