[8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 98 



Plate 3 



Fig. 9. Hcliastcr cumingii, a young individual from Albemarle Island, Gala- 

 pagos; the pointers indicate the four arm buds (U.S.N.M. no. 

 E.5611). X3- 



Plate 4. 



Fig. 10. Hcspcrocidaris houstoniana, n. sp., from Albemarle Island, Galapagos, 



oral view (U.S.N.M. no. E.5605). X 2. 

 Fig. 11. Hcspcrocidaris houstoniana, n. sp., from Albemarle Island, Galapagos, 



aboral view (U.S.N.M. no. E.5605). X 2. 



Plate 5 



Fig. 12. Hcspcrocidaris houstoniana, n. sp., the type specimen from Albemarle 

 Island, Galapagos, aboral view (U.S.N.M. no. E.5604). X 2. 



Fig. 13. Hcspcrocidaris houstoniana, n. sp., the type specimen from Albemarle 

 Island, Galapagos, lateral view (U.S.N.M. no. E.5604). X2 



Fig. 14. Hcspcrocidaris houstoniana, n. sp., the type specimen from Albemarle 

 Island, Galapagos, oral view (U.S.N.M. no. E.5604). X 2. 



