摘要：The present paper is a revision of the genus Ceratophyllum Gurich, 1896. It is based on the five specimens from Gurich's original collection and on the specimens assigned to this genus from the Lower Givetian of Skaly and the Eifelian of Grzegorzowice,Holy Cross Mountains (Góry Świętokrzyskie). The present author designates here the neotype for the species Ceratophyllum typus Gurich, 1896 and chooses it as the type species. A new species Ceratophyllum eijeliensis n.sp. is here established and the subspecies Ceratophyllum typus skalense Gurich, 1896 described.
