TAB. XXVI. 



CORALS FROM THE INFERIOR OOLITE. 



Trochocyathus Magnevillianus (p. 1.2G). 



Fig. 1 . Side view ; natural size. 

 la. Basal surface of the same. 

 lb. Calice restored and magnified. 



'D* 



MONTLIVALTIA TROCHOIDES (p. 129). 



Fig. 2. Side view of a regularly- developed specimen ; natural size. 



2a. Calice, natural size ; the edge of the septa is worn so as to appear entire. 



3. An elongate variety of the same species ; natural size. 



Sa. Calice, natural size ; the septa are well preserved, and show the denticulations 

 of their upper edge, 



4. A short and broad variety of the same species. 

 10. A variety with an irregular form. 



MOXTLIVALTIA DeLABECHII (p. 132). 



Fig. 5. Side view; natural size. 



5«. Inferior surface of the same. 



5(5. Calicular surface of the same. 



6. A young individual, belonging, probably, to the same species. 



MONTLIVALTIA LENS (p. 133). 



Fig. 7. Side view; natural size. 



7a. Calicular surface of the same. 



Td. Inferior surface of the same. 



7c. Calicular surface magnified. 



8. A variety with thinner septa. 



MONTLIVALTIA CUPULIFORMIS (p. 132). 



Fig. 9. Young individuals, belonging, probably, to this speckles. 



MONTLIVALTIA TENUILAMELLOS.\ (p. 130). 



Fig. 1 1 . Side view ; natural size. 

 lla. Calice of the same. 



MONTLIVALTIA WrIGHTI (p. 131). . - 



Fig. 12. A specimen much weather-worn; natural size. 

 12«. Calice of the same. 



