(Sch: t. 122; a. 4 42-pdr.)
Nonata was captured off Tabaseo by brig Porpoise 21 August 1846 during the Mexican War. She became a member of the "mosquite" fleet, the light-draft vessels that could fight inshore.
On 23 October 1846 Vice Commodore Matthew Perry attacked Frontera (now Alvaro Obregon), which lies 7 miles up the Grijalva River. Leaving Mississippi at the mouth of the river because of her deep draft, steamer V=en dashed in towing schooner Bonita, while steamer McLane towed several barges. Nonata, under sail, brought up the rear. The attack was a complete sueeess, netting 2 steamers and some coastal schooners. The following morning Perry proceeded up the Grijalva River to attack San Juan Bautista (now Hermosa Villa). At 9 a.m. the squadron arrived at abandoned Fort Aeacohappa, where a landing party spiked the guns. Arriving at San Juan Bautista at noon, the squadron captured 5 more vessels. The town was then occupied; however, Perry did not possess enough men for garrison duty, 90 he withdrew to Anton Lizardo with his prizes.
On 14 November Commodore David Conner led a large force including Nonata to capture Tampico. No resistance was met, and this important eity fell to the United States Navy.
Into 1847 Nonata served as dispatch ship. During March 1847, while on her way to Tampico for water, Nonata was caught in a "norther" and sustained severe hull damage. After the Mexiean War she was sold for $4,420.