PLATE LXXXVI. 



Page 

 Figs. 1-3. Hymenaster vicarius, n. sp. ... 507 



Fig. 1. A portion of the supradorsal membrane; magnified 15 diameters. 

 Fig. 2. Mouth-plates ; magnified. 



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

 8 diameters. 

 [For macroscopic figures of this species see PI. LXXXIV. figs. 3, 4.] 



Figs. 4-6. Hymenaster glaucus, n. sp. . . . 505 



Fig. 4. A portion of the supradorsal membrane; magnified 15 diameters. 

 Fig. 5. Mouth-plates ; magnified. 



Fig. 6. Adambulacral plates and adjacent portion of the actinal surface ; magnified 

 15 diameters. 

 [For macroscopic figures of this species see PI. LXXXIV. figs. 1, 2.] 



Figs. 7-9. Hymenaster sacculatus, n. sp. . . . 501 



Fig. 7. A portion of the supradorsal membrane ; magnified 1 5 diameters. 



Fig. 8. Mouth-plates ; magnified. 



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

 8 diameters. 



[For macroscopic figures of this species see PI. LXXXV. figs. 1-3.] 



Figs. 10-12. Hymenaster celatus, n. sp. 509 



Fig. 10. A portion of the supradorsal membrane; magnified 15 diameters. 

 Fig. 11. Mouth-plates; magnified. 



Fig. 12. Adambulacral plates and adjacent portion of the actinal surface ; magni- 

 fied 8 diameters. 

 [For macroscopic figures of this species see PI. LXXXV. figs. 4, 5.] 



