TAB. LXVL 



CORALS OF THE SILURIAN FORMATION. 

 AuLACOPHYLLUM MITRATUM (p. 280). 



Fig. 1. A young specimen, found at Dudley, belonging to the Collection of Mr. 

 John Gray ; natural size. 

 la. An adult specimen from the same locality, belonging to Mr. Fletcher's 



Collection ; natural size. 

 \b. Calice of the specimen figured in 1, magnified. 



Cyathophyllum Loveni (p. 280). 



Fig. 2. Side view of a specimen from Wren Nest, belonging to the Collection of 

 M. Bouchard-Chantereaux ; natural size. 

 2b. Calice, magnified. 



Cyathophyllum pseudoceratilrs (p. 282). 



Fig. 3. A young specimen found at Dudley, belonging to the Collection of Mr. 

 Fletcher ; natural size. 

 3«. Calice, magnified. 



33. An adult specimen from Wenlock, belonging to the Collection of M. 

 Bouchard-Chantereaux. 



Cyathophyllum augustum (p. 281). 



Fig. 4. A specimen from Attwood's Shaft, belonging to the Collection of the Geolo- 

 gical Society of London ; natural size. 

 4a. Vertical section, somewhat magnified. 



Cyathophyllum truncatum (p. 284). 



Fig. 5. A compound corallum found at Dudley, belonging to the Collection of 



Mr. Fletcher ; natural size. 

 6a. Another specimen from the same locality, belonging to the Collection of 



the Geological Society of London ; natural size. 

 6b. A calice, magnified. 

 6c. Another calice, magnified, and bearing some young corallites. 



Cyathophyllum (turbinolopsis) elongatum (p. 286). 



Fig. 6. Side view of a cast found at Leach Heath, belonging to the Collection of 

 the Geological Society ; natural size. 

 6a. Under surface of the same ; natural size. 



