Initially it was called 'Niiho,' 'Kamiho' or 'Shinbo,' but a proposal for the name 'Kame no o' (king of turtles) was devised, taking a character from the name of the selector.
当初は「新穂」「神穂」「新坊」などと呼ばれたが、やがて選抜者の名前の一字を取り「亀ノ王」という名称案が考えられた。