PLATE VI. 
Figs. 1, 2. PoNTASTER MIMICUS, 0D. Sp. 
fo} 3 
. Abactinal aspect ; magnified 15 diameters. 
. Actinal aspect ; magnified 14 diameters. 
[For magnified details of this species see Pl. VII. figs. 5, 6. | 
Figs. 3, 4. PonrAsTER LIMBATUS, 0. sp. . 
. Abactinal aspect ; magnified 1} diameters. 
. Actinal aspect ; magnified 14 diameters. 
[For magnified details of this species see Pl. VII. figs 1, 2.] 
Figs. 5, 6. PONTASTER PRISTINUS, 0. sp. 
. Abactinal aspect ; magnified 3 diameters. 
. Actinal aspect; magnified 3 diameters. 
[For magnified details of this species see Pl. VII. figs. 7, 8.] 
Fig. 7. PONTASTER TENUISPINUS, Var. PLATYNOTA, Nov. 
. Abactinal aspect ; magnified 14 diameters. 
[For magnified details of this variety see Pl. VII. figs. 3, 4.] 
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