﻿BRITISH FOSSIL CEPHALOPODA. 



Plate XXVIII. 



Fig. 



1. Nautilus Holtianus. — From the Lower Ludlow, Ledbury. In the collection 



of Dr. Grindrod. 



2. Nautilus (Trocholites) anguiformis. — From the Bala Limestone, Llangollen. 



In the "Woodwardian Museum, a, outline of the suture. 



3. Trochoceras speciosum. — From the Lower Ludlow, Ledbury. In the 



collection of Dr. Grindrod. 



4. Nautilus (Trocholites) scoticus. — From the Upper Llandovery, Bogmine, 



Shelve. In the Museum of Practical Geology. A young specimen. 



5. Trochoceras cornu-arietis. — From the Bala Shales, Desertcreat. In the 



Museum of Practical Geology. Portlock's figured specimen. 



