194 BRITISH FOSSIL ELEPHANTS. 



same collection, from the Iron Pan, Eorest Bed, Bacton, is a portion of a right upper 

 tooth, showing a well-marked pressure-scar on the heel, and contains 11 x in 8x3^ 

 inches, and five ridges in 3^ inches. None of the digitations are worn out ; nevertheless, 

 the plates are thick, and there is an excess of cement ; altogether it may be fairly corre- 

 lated with the preceding. 



No. 33,365, B. M., is a fragment of aright ramus of a mandible from Happisborough. 

 It contains about eight ridges of the first true molar with an entire second true molar 

 behind it ; the first four ridges of the latter have been invaded. The diasteme is 

 preserved. This jaw has been broken across at the symphysis in front, and in a line 

 with the heel of the second true molar behind. 



The second molar is considerably arcuated and holds x 10 x in 8£ X 3£ inches. There 

 is about an inch to every ridge. It is broad behind, being 3*4 inches in width. The 

 crown shows enamel free from crimping, and has the usual excess of cement observed in 

 these uncrimped teeth, whose external margins present some roughening and channelling. 

 The breadth of crown, the length, and the small height are evident characters as 

 compared with the varieties of E. antiquus ; and the low ridge formula is assuredly 

 significant, inasmuch as I have not met with the same in any second true molar of the 

 latter species. 



With reference to the characters of the ramus. The mental foramina are two in 

 number. One at a distance of 1*2 inches from the margin of the diasteme, the other 

 2*2 inches distant and a short way above the last. 



The usual foramen inside the spout is about 1*4 inches from the margin. 



The diasteme slopes at about an angle of 45°. The thickness of the jaw at the base 

 of the coronoid is 6£ inches. The rostrum is wanting. In the rather reclinate diasteme 

 the jaw differs from that of E. antiquus, and is broadly distinct, of course, from that of E. 

 primigenius. 



A detached left lower molar (PI. XXIII, figs. 1 and 1 a), No. 33,343, B. M., also 

 from the Norfolk coast, holds apparently a formula of x 9 x. The anterior talon is 

 like a plate, and so is the posterior, excepting a small prominence on its posterior 

 surface. About five or six ridges of this tooth are invaded. It is somewhat arcuated, 

 with a double anterior fang followed by a coalescence posteriorly. The length is 8 J X 2-|, 

 and contains eight ridges in about 5'2 inches. It presents the same characters as the 

 last, with which it may fairly claim relationship. 



A characteristic specimen of evidently a second true molar in a fragment of a jaw was 

 discovered by Mr. Alfred Savin at Overstrand, Cromer; No. 37 of his collection. It 

 is a right upper molar with a well-marked pressure-scar on the heel. All the plates are 

 in wear. The anterior fang is preserved, but the first ridge has been ground away, leaving 

 eleven plates and a posterior talon in 8x3£ inches. There are five plates in 3 J inches^ 

 The uncrimped enamel, the channelling of the latter, the excess of cement, its dimensions 

 and low ridge formula, seem to me to place it with the foregoing. 



