PLATE LVII. 



Page 



Figs. 1-4. Pentagonaster lepidus, n. sp 275 



Fig. 1. Abactinal aspect; magnified 3 diameters. 



Fig. 2. Actinai aspect ; magnified 3 diameters. 



Fig. 3. A portion of the abactinal surface ; magnified 25 diameters. 



Fig. 4. Adambulacral plates and adjacent portion of the actiual surface ; magnified 

 35 diameters. 



Figs. 5-7. Gnathaster pilulatus, n. sp 292 



Fig. 5. Abactinal aspect ; magnified 1^ diameters. 



Fig. 6. Actinai aspect ; magnified 1^ diameters. 



Fig. 7. A portion of the abactinal surface ; magnified 10 diameters. 



Figs. 8, 9. Nymphaster basilicus, n. sp 308 



Fig. 8. Abactinal aspect ; natural size. 



Fig. 9. Adambulacral plates and adjacent portion of the actinai surface; magnified 

 8 diameters. 



