98 BEITISH AND EUROPEAN FOSSIL ELEPHANTS. 



' Fauna Antiqua Sivalensis.') The vertical height of the 

 seventh ridge, although but slightly worn, does not exceed 

 2% inches, while the greatest width of the crown is 3 inches. 

 The flexuous bend of the enamel-plates vertically, at the 

 posterior end as seen in the section, is not a distinctive 

 peculiarity, since it is met with in inferior molars both of the 

 Indian Elephant and of E. (Eueleph.) antiquus. 

 The principal dimensions of this specimen are — 



Extreme length of crown-surface, 8' in. Width of crown-surface at first ridge, 

 2'35 in. Width of crown-surface at the fourth ridge, 2-8 in. Width of crown- 

 surface at the seventh ridge, 1*8 in. Height of the seventh ridge, 2-5 in. Width 

 of second disc at mesial expansion, 0'95 in. 



There are eight discs of wear to a length of 8 inches, 

 being an average of one ridge to the inch, a proportion 

 corresponding closely with that presented by the oldest teeth 

 of the African Elephant. The front fang, in the last lower 

 molar of the latter species, generally supports two principal 

 ridges besides the anterior talon. It is inferred, therefore, 

 that the corresponding fossil tooth of E. (Loxodon) priscus, 

 when entire, was composed of ten or eleven ridges, and that 

 it was about 11 inches long. 



Another specimen (No. 18,966 of the British Museum Col- 

 lection), also reputed to have been procured from the brick- 

 earth deposits of the valley of the Thames, is represented by 

 fig. 6 of PI. XIY. of the work above cited. It is a fragment 

 mutilated at both ends, showing only the entire discs of five 

 partially worn ridges. The outline of the discs corresponds 

 very closely in form with those of the posterior ridges of the 

 larger specimen from Grays Thurrock, described above. 

 There is the same mesial angular expansion, and a still 

 greater tendency to the discs assuming a crescentic form. 

 The mutilated condition of this specimen renders its identi- 

 fication somewhat doubtful ; but it is inferred to belong to 

 E. (Loxod.) priscus, and to be a penultimate molar of the 

 lower jaw, left side. The dimensions are 



Length, 5' in. Width of the crown behind, 3- in. Height of the crown behind, 

 2-8 in. 



Besides the five entire ridges, the fractures pass through 

 the middle of a disc at either end ; so that the specimen may 

 be considered to possess, six ridges in a length of 5 inches, 

 being an average width of "83 to each, near the summit, where 

 but little worn. 



The only other British specimen referable to this species, 

 that has come under my observation, is a fragment of a lower 

 jaw, with which I have lately become acquainted, in the rich 

 and valuable collection of Mammalian remains from the 

 Norfolk coast, between Cromer and Lowestoft, formed by the 





