Regulus entered Lloyd's Register (LR) in 1797 with D. West, master, R. Ross, owner, and trade London–CGH.

[2] Lloyd's List (LL) reported on 5 July 1803 that the privateer Regulus, of London, had sent into Plymouth Deux Margarites, which had been sailing from San Domingo to Bordeaux.

[7] On 14 August Bon Accord, Passmore, master, arrived at Dover, as a prize to Regulus.

[8] On 16 August LL reported that Regulus had captured Conception and Jean Baptiste as they were sailing from Havana to Malaga.

[11] The Register of Shipping for 1806 showed her master as M'Cawley, Drinkall, owner, and her trade as London–Sierra Leone.