PLATE LVII. 
Page 
Figs. 1-4, PENTAGONASTER LEPIDUS, 0. sp. . : : ote 
Fig. 1. Abactinal aspect; magnified 3 diameters. 
Fig. 2. Actinal aspect ; magnified 3 diameters. 
Fig. 3. A portion of the abactinal surface ; magnified 25 diameters. 
Fig. 4. Adambulacral plates and adjacent portion of the actinal surface ; magnified 
35 diameters. 
Figs. 5-7. GNATHASTER PILULATUS, 0. Sp. . : : oy Zoe 
Fig. 5. Abactinal aspect ; magnified 15 diameters. 
Fig. 6. Actinal aspect ; magnified 14 diameters. 
Fig. 7. A portion of the abactinal surface ; magnified 10 diameters. 
Figs. 8, 9. NYMPHASTER BASILICUS, D. sp. . : . 308 
Fig. 8. Abactinal aspect ; natural size. 
t=) 
Fig. 9. Adambulacral plates and adjacent portion of the actinal surface; magnified 
8 diameters. 
