82 TTNGULATA. 



Pala3ontological Memoirs,' vol. i. p. 82. There is scarcely 

 any trace of the median cleft, the cement is slight, and 

 there are numerous cusps. 



Mantell Collection. Purchased, 1836. 



39710. The second right upper true molar, in a somewhat more 

 worn condition ; from the Pliocene of the Siwalik Hills. 

 The specimen apparently has six ridges and talons. 



Cautley Collection. Presented, 1842. 



M. 3494, 7389. One half of the anterior part of a vertically and longi- 



(Fig.) tudinally bisected third (?) right upper true molar, together 



with a cast of the complete specimen. The specimen was 



collected by Crawfurd near Yenankhoung. and is figured by 



Falconer and Cautley, op. cit. pi. xxx. figs. 4, 4 a, 4 b (as 



m. 2). The original ivas presented by the Geological 



Society ; the cast belongs to the Mantell Collection, 



Purchased, 1836. 



14759. The third left lower true molar; from Burma. This 

 (Fig.) specimen shows eight ridges and a hind talon ; and is 



figured by Falconer and Cautley, op. cit. pi. xxx. figs. 5, 



5 a (as of the left side). 



Presented by Col. Burney. Before 1846. 



Elephas bombifrons, Falconer and Cautley 1 . 



Syn. Stegodon bombifrons, auct. 



The ridge-formula of this species may be approximately given as 

 Mm - ?7i7(E?)' M - r (7-8) ! ( Tlie ri dges are rather taller, somewhat 

 wider apart, and more numerous than in E. clifti, and the valleys 

 are generally completely filled with cement ; it is, however, some- 

 times very difficult to distinguish between the hinder teeth of the 

 two species, while in the opposite direction it is often difficult to 

 distinguish between those of E. bombifrons and E. insignis. The 

 teeth figured by Falconer and Cautley under the name of E. ganesa 

 cannot be distinguished from those of the present species, and are 

 therefore provisionally classed under the same head. The teeth are 

 frequently very large, and the ridges are often curved ; a trace of 

 the median longitudinal cleft can often be observed in the first two 

 or three ridges, and the inner columns of these ridges occasionally 

 show accessory tubercles near the longitudinal cleft, where they 

 assume a Mastodon-like shape. The plane of wear of the teeth of 

 1 Fauna Antiqua Sivalensis, pt. 1, p. 46 (1846). 



