PLATE XLII. 
Figs. 1, 2. BATHYBIASTER LORIPES, 0. sp. 
1. A portion of the abactinal surface ; magnified 20 diameters. 
bo 
. Adambulacral and infero-marginal plates ; magnified 12 diameters. 
[For macroscopic figures of this species see Pl. XXXVI. figs. 1, 2. | 
Figs. 3, 4. PsEUDARCHASTER DISCUS, nN. sp. 
. 8. A portion of the abactinal surface ; magnified 20 diameters. 
g. 4, Adambulacral and infero-marginal plates ; magnified 12 diameters. 
[For macroscopic figures of this species see Pl. XIX. figs. 1, 2.] 
Figs. 5, 6. PSEUDARCHASTER INTERMEDIUS, n. sp. 
O1 
. A portion of the abactinal surface ; magnified 18 diameters. 
. 6. Adambulacral and infero-marginal plates ; magnified 15 diameters. 
[For macroscopic figures of this species see Pl. XIX. figs. 3, 4.] 
Figs. 7, 8. PSILASTER ACUMINATUS, ND. Sp. . 
. 7. A portion of the abactinal surface ; magnified 18 diameters. 
ee) 
. Adambulacral and infero-marginal plates ; magnified 15 diameters. 
[For macroscopic figures of this species see Pl. XL. figs. 1, 2. ] 
Figs. 9-11. PSILASTER GRACILIS, D. sp. . 
g. 9. A portion of the abactinal surface ; magnified 25 diameters. 
. 10. Adambulacral and infero-marginal plates; magnified 15 diameters. 
ig. 11. Mouth-plates; magnified 7 diameters. 
[For macroscopic figures of this species see P]. XLI. figs. 5, 6. | 
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