U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 90 PLATE 70 







i? 



1, Patiria granifera Gray, from Simonstown, False Bay, South Africa. The abactinaUkeleton of 



one ray 



ly has been cleaned to demonstrate the secondary plates characteristic of Patiria. 

 ia crassa (Gray), X 2?4. The spinelets have been removed from the plates of one 



one ra 

 2, Nepanthia crassa ^ijray 



to show secondary and tertiary plates. 



