PLATE XCIII. 
Page 
Figs. 1-3. HyMENASTER PULLATUS, n. sp. - - oy ve SOIR 
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 a macroscopic figure of this species see Pl. XCII. fig. 1.] 
Figs. 4-6. HYyMENASTER GEOMETRICUS, 0. Sp. 3 .. ous 
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 
5 diameters, 
[For macroscopic figures of this species see Pl. XCII. figs. 2, 3.] 
Figs. 7-9. HyMENASTER LATEBROSUS, 0. sp. . . - $514 
Fig. 7. A portion of the supradorsal membrane ; magnified 15 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 P]. XCII. figs. 4, 5. ] 
Figs. 10-12. HyMENASTER MEMBRANACEUS, Wyville Thomson, 521 
Fig. 10. A portion of the supradorsal membrane ; magnified 15 diameters. 
Fig. 11. Mouth-plates ; magnified. 
Fig 
g. 12. Adambulacral plates and adjacent portion of the actinal surface ; magnified 
8 diameters. 
[For macroscopic figures of this species see Pl. XCIL. figs. 6, 7.] 
