Plate 21 



Page 



Figs. 1-4. Multicrescis galaef era, new species 14 



1, 2. Lateral and basal views of zoarium, natural size. 

 3, 4. Surface, X12 and X25. 



Lower Cretaceous (Valangian) : Sainte-Croi.x, Swit- 

 zerland. 



Figs. .5-6. MuUicrescis inammillosa, new species 16 



Surface, X12 and X25. 



Lower Cretaceous (Aptian) : Faringdon, England. 



Figs. 7-9. MuUicrescis lamellosa, new species 16 



7. Portion of the lamellate zoarium, natural size. 

 8, 9. Zoarial surface, X12 and X25, showing the great irregu- 

 laritj' of the mesopores and apertures. 

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

 land. 



Figs. 10-12. AI ulticrescis {Acanthopora) for7nosa, new species 18 



10. Fragment of zoarium, natural size. 

 11, 12. Surface, X12 and X25. 



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

 zerland. 

 Figs. 13-18. MuUicrescis pulcheUa, new species_ 17 



13. Zoarial fragments, natural size. 



14. Zoarial base, X3, showing the central stem sur- 



rounded by encrusting lamellae. 

 15, 16. Specimen, X12 and X25, with very salient visors. 

 17, 18. Zoarial fragment, X12 and X25, showing the small 

 visors and the oblique apertures. 

 Lower Cretaceous (Valangian): Sainte-Croix Swit- 

 zerland. 

 114 



