PLATE 4. 
OPHIDIA. 
Fig. 
1. Left side view of a chain of thirty trunk vertebre of the Paleophis toliapicus, 
from Sheppy. 
2. Right side view of the same vertebre. 
3. Under view of five vertebræ of the same chain, with the articular ends of some of 
of the ribs. 
4. Portion of a group of Paleeophis vertebre from Bracklesham, showing the size 
and structure of the ribs; natural size 
