TAB. XLVII. 
CORALS FROM THE DEVONIAN FORMATION. 
HELIoitEs Porosa (p. 212). 
Fig. 1. A vertical section made through a globular specimen found at Torquay, and 
belonging to the collection of Mr. Bowerbank ; natural size. 
la, 14, le. Portions of different transverse sections, showing the variations in the 
size of the calices. Figs. la and 1c are from different parts of the same 
specimen ; natural size. 
ld. A magnified view of part of the specimen figured in 1a, showing the structure 
of the caenenchyma and the septa. 
le. A magnified view of a portion of the vertical section, fig. 1, showing the 
tabulee of the corallites and the dissepiments of the columnal caenenchyma. 
1f. A specimen of the same species, in which the substance of the coral has been 
destroyed and the visceral chambers of the corallites filled up with 
extraneous matter, constituting small prominent cylinders. Found at 
Torquay by Mr. Pengelly. 
BaTTERSBYIA INZQUALIS (p. 213). 
Fig. 2. A transverse section polished ; natural size. Specimen found at Teignmouth, 
and belonging to the collection of Dr. Battersby. 
2a. A specimen showing the septa; natural size. 
24. The same, magnified. 
FavositEs GoLpFussi (p. 214). 
Fig. 3. Vertical section polished ; natural size. Specimen from Torquay, belonging to 
the collection of Mr. Bowerbank. 
3a. Transverse section magnified, and showing some well-preserved calices with 
their septa. 
36. A fractured specimen, showing the prismatic form of the corallites ; natural size. 
(Bowerbank collection.) 
3c. The upper surface of the same specimen ; natural size. 
