Table:
text: Comus-class corvette
Ships
Ships
Ship Laid_down Builder Engine_builder Launched Completed Disposition Fate
Carysfort 17 August 1876 John Elder John Elder 26 September 1878 15 September 1880 Paid off 1901 Sold for breaking 1899
Conquest 17 August 1876 John Elder Humphrys, Tennant & Company 28 October 1878 18 April 1885 Paid off 1894 Sold for breaking 1899
Constance 14 September 1878 Chatham John Penn and Son 9 June 1880 3 October 1882 In reserve 1889 Sold for breaking 1899
Canada 7 July 1879 Portsmouth J. & G. Rennie 26 August 1881 1 May 1883 In reserve 1896 Sold for breaking ca. 1898

Question: When was the Carysfort introduced among the Comus-class corvettes?

Question: How many Comus-class ships were named Carysfort?