TAB. LXXI. 



CORALS OF THE SILURIAN FORMATION. 



Strombodes typus (p. 293). 



Fig. 1. A part of the surface of a specimen from Wenlock, belonging to the 

 Museum of Paris ; natural size. 

 la. A calice, magnified. 

 2/y. A part of a vertical section, magnified. 



Strom modes diefluens (p. 294). 



Fig. 2. Upper surface of a specimen found at .Much Wenlock, belonging to the 

 Parisian Museum ; natural size. 

 ■la. A calice, magnified. 



Syrtngophyllum organum (p. 295). 



Fig. 3. A large specimen from Dudley; natural size. 

 "da. Calice, magnified. 



3#. A cast found at Coniston, belonging to the Collection of the Geological 

 Society of London. 



