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PLATE XL. 
Page 
Figs. 1, 2. PsILASTER ACUMINATUS, 0. sp. ; : 3 as 
. Abactinal aspect ; magnified 2 diameters. 
. Actinal aspect; magnified 2 diameters. 
[For magnified details of this species see Pl. XLII. figs. 7, 8.] 
Figs. 3-6. PHOXASTER PUMILUS, n. sp. . s 2 . | 286 
. Abactinal aspect ; magnified 3 diameters. 
. Actinal aspect ; magnified 3 diameters. 
Abactinal aspect of a young example; magnified 3 diameters. 
Actinal aspect of a young example; magnified 3 diameters. 
[For magnified details of this species see Pl. XV. figs. 7-11. ] 
