﻿BRITISH FOSSIL CEPHALOPODA. 



Plate XXIII. 



Fig. 



1. Gomphoceras gratum. — From the Lower Ludlow, Garcoed, Usk. In the 



Museum of the Cardiff Naturalists' Society. A compressed specimen. 



2. Ibid. — From the Lower Ludlow, Leintwardine. In the Museum of Practical 



Geology. A drawn-out specimen, a, the septal surface; b, diagram of the 

 aperture. 



3. Gomphoceras neglectum. — From the Lower Ludlow, Aymestry. 'In the 



Woodwardian Museum, a, the septal surface ; b, diagram of the aperture — 

 (rather theoretical.) 



4. Gomphoceras crater. — From the Wenlock Limestone, Malvern. In the 



Museum of Practical Geology, a, the septal surface ; b, outline of the 

 termination of the shell (? the aperture). 



5. Gomphoceras cinctum. — From the Lower Ludlow, Ludlow. In the British 



Museum. 



6. Ibid. — From the Wenlock Limestone, Dudley. In the British Museum. 



Septal surface. 



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



tion of Dr. Grindrod. a, diagram of the front view, showing the depres- 

 sions on either side of the aperture. 



8. Gomphoceras crater. — From the Wenlock Limestone, Malvern. In the 



Museum of Practical Geology, a, front view, showing the aperture. 



