In 1956 Prof.Y.C.Sun and comrade Y.Z.Hung examined the graptolite fauna collectedby the 435 Expedition of the Geological Bureau of Central South China,Ministry of Geology,from the Wufeng Shale(late Upper Ordovician)of Chu-Chi district,northwestern Hupeh.Theyhanded over to me for study two particular specimens chosen from the collection.These twospecimens belong to one and the same species,and are preserved as mere carbonaceous films inblack shale.The thecae are evidently of the Climacograptid type,though the specimens are not