TAB. LXIX. 
CORALS OF THE SILURIAN FORMATION. 
OMPHYMA TURBINATA (p. 288). 
Fig. 1. Side view of a specimen from Benthall Edge, belonging to the Collection of 
M. Bouchard-Chantereaux ; natural size. 
la. Its calice; natural size. 
ALCERVULARIA LUXURIANS (p. 292). 
Fig. 2. Under surface of a specimen found at Dudley. 
2a. Upper surface of a specimen from Dudley, belonging to the Collection of 
Mr. Fletcher ; natural size. 
26, Calice, magnified. 
2c. Upper surface of the specimen figured in 2; natural size. 
2d. Upper surface of a specimen from Dudley ; natural size. 
2e. Calices of the same, magnified. 
2f. Some calices of a specimen from Dudley, belonging to the Collection of Mr. 
Bowerbank ; natural size 
