TAB. LXIV. 
CORALS OF THE SILURIAN FORMATION. 
HIALYSITES CATENULARIA (p. 270). 
Fig. 1. | Side view of a vertical series of corallites; natural size. This specimen is from 
Dudley, and belongs to the Collection of the Geological Society of 
London. 
la. Upper surface of another specimen, from the same locality and Collection ; 
natural size. 
4. Vertical section in a specimen from Dudley; natural size. (Varietas major.) 
le. Upper surface of a specimen found at Benthall Edge by M. Bouchard- 
Chantereaux ; natural size. (Var. agglomerata.) 
ITALYSITES ESCHAROIDES (p. 272). 
Fig. 2. Upper surface of a specimen found at Benthall Edge by M. Bouchard- 
Chantereaux ; natural size. 
2a. Side view of the same specimen. 
SyRINGOPORA BIFURCATA (p. 273). 
Fig. 3. Side view of a specimen found at Dudley, belonging to the Collection of Mr. 
Fletcher; natural size. 
3a. Its wpper surface ; natural size. 
34. Some corallites, magnified. 
