FEOM THE FOEEST BED OF EAST EUNTON, 175 



1867. Lartet, E. Comptes Rendns^ vol. 64^ p. 48. 



1857-69. Gervais, Paul. Zool. Pal. Gen. p. 80. 



1869. Owen, R. On the Distinction between Castor and Trogontherium. Geol. Mag. vol. ^tl. p. 49. 



1876. Alston, E. R. On the Classification of the order Glires. Proc. Zool. Soc. 1876, p. 78. 



1882. Newton, E. T. Vertebrata o£ the Forest Bed, p. 65. Mem. Geol. Surv. United Kingdom. 



1 890. . On some New Mammals from the Red and Norwich Crags. Quart. Journ. Geol. 



Soc. vol. xlvi, p. 447. 



1891. . Vertebrata of the Pliocene Deposits of Britain. Mem. Geol. Surv. United Kingdom. 



9. EXPLANATIOM OF THE PLATE. 



Trogontherium cuvieri, Fischer. All figures natural size.. 



bo., basioccipital. 



CO., exoccipital. 



exa., external auditory meatus.. 



fr., frontal. 



in., incisor alveolus. 



ij)., interparietal. 



m. /, -2, S, molar teeth. 



mt., mastoid portion of periotic 



mx., maxilla. 



06'., occipital condyle. 



or., orbit. 



jpa., parietal.. 



pL, palatine. 



^If; palatine foramen. 



pm. ^, premolar 4. 



pmx., premasilla. 



so., supraoccipital. 



sof., suborbital foramen. 



sq., squamosal. 



ti., tympanic bulla. 



Fig. 1. Skull from the Forest Bed of East Eunton, near Cromer, in the possession of 



Mr. A. Savin, seen from above. 

 Fig. 2. Same specimen, palatal view. 

 Fig. 3. „ „ left side. 



Fig. 4. „ „ seen from behind ; the dotted line indicates the probable extent 



of the occipital crest. 

 Fig. 5. Right cheek-teeth of same specimen, grinding-surfaces slightly restored to show 



the enamel folds. 

 Fig. 6. Grinding-surfaee of three molars in the right maxilla described by Sir K. Ovvem 



in 1869, and now in the King Collection, Museum of Practical Geology. 

 Fig. 7. Grinding-surfaee of the right cheek-teeth of Fischer's type skull from the Sea 



of Azof, preserved in the Museum at Moscow. Copied from Ronillier's 



figure, and reduced to natural size. 

 Fig. 8. Grinding-surfaee of the right molars of the type skull of Conodontes hoisvillettii, 



from the Pliocene of Saint-Prest, preserved in the Ecole des Mines, Paris. 



Drawn from wax impressions of the teeth kindly supplied by Prof. Daubree. 



*&• 



'■a' 



