Three ships of the Royal Navy have borne the name HMS Seamew, another name for the common gull: was a coastguard vessel, transferred from the Board of Customs in 1857 and sold in 1906. the trawler Nunthorpe Hall built in 1909 purchased by the Admiralty that April and converted into a First World War minesweeper, based at Sheerness in 1914, sold back to fishing use in 1920. was a river gunboat launched in 1928 and sold in 1947. Royal Navy ship names