"Jaseur" was lost on the Bajo Nuevo Bank in the Caribbean Sea within two years of her launch, having spent the whole of her short career on the North America and West Indies station, mostly in deterring the slave trade. "Jasper" also served on the West Indies station before being sold to the Chinese in 1863 to form part of Sherard Osborn's Vampire Fleet. When the venture was called off, she was sold to Egypt to prevent her purchase by the Confederate Navy. "Algerine" spent her entire career on the China station, and was present at the capture of Canton in 1857. "Lee" was also sent to the China station, but her career was abruptly curtailed on 25 June 1859 when she was sunk at the second battle of the Taku Forts. "Leven", like "Lee" and "Algerine" served on the China station, and took part in the successful first battle of the Taku Forts. The last man hanged from the yardarm in the Royal Navy was a Royal Marine, executed for attempted murder on 13 July 1860 in "Leven". "Slaney" served with "Algerine" at the capture of Canton and with "Leven" at the first battle of the Taku Forts.