NO. 3 



CASSIDULOID ECHINOIDS — KIER 



1/7 



% 

 % 







149 



150 



151 



152 



153 



Figs. 149-153. — 149, 150, Cassidulus cariboearum Lamarck: 149, Phyllode 

 of ambulacrum I viewed from the outside of USNM 634001, from Antigua, 

 West Indies (living), X 13; 150. view from inside of same phyllode. 151, 152, 

 Rhyncholampas grignonensis (DeFrance) : 151, Phyllode of USNM 633997, 

 from the Middle Eocene, at Cahaignes (Eure), France, X I5 ! i52» adoral 

 view of same specimen showing plate arrangement, X i. ^53. Rhyncholampas 

 ellipticus (Arnold and Clark) : Phyllode of ambulacrum III of holotype, 

 3284, in the Museum of Comparative Zoology, Harvard, from the Eocene, 

 western side of hills east of Montpelier, St. James Parish, Jamaica, X I5- 



