Ceratoneis alpina (Naegeli in Kützing) Grunow in Rabenhorst, 1865 accepted as
Synedra alpina var. alpina Naegeli in Kützing, 1849 (new combination reference)
Ceratoneis arcuata (Naegeli in Kutzing) Grunow in Rabenhorst, 1865 accepted as
Synedra arcuata Naegeli in Kutzing, 1849 (new combination reference)
Ceratoneis flexuosa Grunow, 1865 (new combination reference)
Ceratoneis lunaris (Ehrenberg) Grunow, 1865 accepted as
Synedra lunaris var. lunaris Ehrenberg, 1832 (new combination reference)
Ceratoneis lunaris var. bilunaris (Ehrenberg) Grunow accepted as
Synedra bilunaris var. bilunaris Ehrenberg, 1832 (new combination reference)
Ceratoneis lunaris var. falcata (Kützing & L.A.Brébisson) Grunow accepted as
Synedra falcata Brébisson ex Kützing, 1849 (new combination reference)
Ceratoneis pachycephala (Kützing) Grunow in Rabenhorst, 1865 accepted as
Eunotia pachycephala Kützing, 1849 (new combination reference)
Ceratoneis subarcuata (Nägeli) Grunow, 1865 accepted as
Synedra subarcuata Naegeli ex Kützing, 1849 (new combination reference)
Euceratoneis amphioxys (Rabenhorst) Grunow, 1865 accepted as
Ceratoneis amphioxys var. amphioxys Rabenhorst, 1853 (new combination reference)
Eunotia pectinalis f. novemundulata Grunow in Rabenhorst, 1865 (original description)