﻿BRITISH FOSSIL CEPHALOPODA. 



Plate XXV. 



Fig. 



1. Phragmoceras arcuatum. — From the Lower Ludlow of Ledbury. In the 



collection of Dr. Grindrod. A flattened cast. 



2. Phragmoceras imbricatum. — From the Wenlock Limestone of Ledbury. In 



the collection of Dr. Grindrod. a, the same seen on the ventral side. 



3. Phragmoceras subexternum. — From the Wenlock Limestone, Ledbury. In 



the collection of Dr. Grindrod. 



4. Gomphoceras amygdala. — From the Lower Ludlow, Ledbury. In the collec- 



tion of Dr. Grindrod. a, the aperture somewhat restored ; 6, the septal 

 surface. 



