PLATE LXXIII. 



Page 



Figs. 1-3. Chii-onaster cataphractus, n. sp. . . . 283 



Fig. 1. Abactinal aspect; magnified 3 diameters. 



Fig. 2. Actinal aspect ; magnified 3 diameters. 



Fig. 3. Adambulacral plates and adjacent portion of the actinal surface ; magni- 

 fied 15 diameters. 



Figs. 4-7. Peribolaster folliculatus, n. sp. . . . 465 



Fig. 4. Abactinal aspect ; natural size. 



Fig. 5. Actinal aspect ; natural size. 



Fig. 6. A portion of the abactinal surface ; magnified 8 diameters. 



Fig. 7. Adambulacral plates and adjacent portion of the actinal surface ; magni- 

 fied 8 diameters. 



