bo 
PLATE I. 
Figs. 1, 2. PARARCHASTER SPINOSISSIMUS, 1. Sp. 
. Abactinal aspect ; magnified 2 diameters. 
. Actinal aspect ; magnified 2 diameters. 
[For magnified details of this species see Pl. IV. figs. 1, 2.] 
Figs. 3, 4. PARARCHASTER PEDICIFER, 0. Sp. 
. Abactinal aspect; natural size. 
. Actinal aspect ; natural size. 
[For magnified details of this species see PJ. IV. figs. 3, 4. ] 
Figs. 5, 6. PARARCHASTER ARMATUS, 0. sp. 
. Abactinal aspect; magnified 2 diameters. 
. Actinal aspect ; magnified 2 diameters. 
[For magnified details of this species see Pl. IV. figs. 5, 6.] 
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