Explanation of PI. I. 



x\ll figures in. natural size. 



Fig. 1. Doris (Ctenodoris) aurantiaca sp. nov. 



„ 2. Halgerda japonica sp. nov. 



., 3. Platydoris speciosa Abraham. Upper surface. 

 „ 4. „ „ „ Under .„ 



„ 5. Platydoris tabulcda Abraham. 



