Plate 8 



Page 



Figs. 1-7. C erymbopor a cupula D'Or\ngny, 1853 93 



1-3. A zoarium with V)road base, X6, showing superior (1), 

 lateral (2), and inferior sides (3). 

 4. Zoarium, X3, formed of several agglomerated sub- 

 colonies. 

 5-7. An ovicelled zoarium with narrow base, X6, exhibit- 

 ing upper (5), lateral (6), and lower sides (7). 

 Cretaceous (Cenomanian) : Le Mans, France. 



Figs. 8-12. Ceriocava ingens, new species 70 



8. Zoarium, natural size. 

 9, 10. Portion of a large zoarium, X12 and X25, where the 



tubes have preserved their facettes. 

 11, 12. Portion, X12 and X25, in which the facettes are 

 wanting. 

 Lower Cretaceous (Valangian) : Sainte-Croix, Switzer- 

 land. 



Figs. 1.3-16. Conjinbopora neocomien.'ii.'i D'Orbigny, 1853 92 



13, 14, 15. Zoaria, natural size and enlarged. 



16. Base of two zoaria enlarged; the base is a lit- 

 tle expanded adherent disk. 

 Lower Cretaceous (Valangian) : Sainte-Croix, 

 Switzerland. 



Fig. 17. Diaperoccia orbifcra, new STpccies 51 



An ovicelled zoarium, X12. 



Lower Cretaceous (Aptian) : Faringdon, England. 



101 



