Kofoid. — New Species of Diuoflagellates. 



PLATE 4. 



Fig. 24. Triposolenia ambulatrix, sp. nov., dextral face. X 450. 



Fig. 25. Ceratium dilatata (Karsten), ventral face. X 450. 



Fig. 26. Ceratium axiale, sp. nov., ventral face. X 450. 



Fig. 27. Ceratium claviger, sp. nov., ventral face. X 285. From life. 



