236 Bulletin American Museum of Natural History. [Vol. XXXII. 



EXPLANATION OF PLATES. 



PLATE XLIV. 



Fig. 1. Zoroaster platyacanthus sp. nov. Holo type (upper view) . Nat. size. 

 Fig. 2. " (lower view). 



Fig. 3. Pedicellasterhyperoncussp.nov. Hplotype (upper view) . Nat. size. 

 Fig. 4. " " " (lower view). 



PLATE XLV. 



Fig. 5. Diopederma axiologum sp. nov. Holotype (upper view). Nat. size. 

 Fig. 6. " (lower view). 



Fig. 7. " " " Base of arm and adjoining portion of 



disc, X 4J. 



Fig. 8. Ophiura oligopora sp. nov. Holotype (upper view). X2|. 

 Fig. 9. " (lower view). 



PLATE XLVI. 



Fig. 10. Urechinus reticulatus sp. nov. Holotype (side view), -f nat. size. 



Fig. 11. " " (posterior view). 



Fig. 12. " " (upper view). 



Fig. 13. " " " (lower view). 



