126 FAUNA ANTIQUA SIVALENSIS. 



but the anterior talon consists of two confluent prominent tubercles, 

 free from any mark, showing either that there was no penultimate 

 premolar, or that it was very caducous, and dropt out without pressure 

 from behind. The anterior ridge is narrow ; the posterior broad, as 

 in Lartet's ; but the ridges are more worn, and the discs confluent. 

 The crown slopes from the inside which is higher, to the outside 

 which is lower, but less so than in Lartet's. The intermediate 

 tubercle is worn down as in his, and the posterior talon is only 

 exhibited free on the imier side. 



The. specimens are so exactly alike that they might have been 

 taken for the same species, but that the Indian is a little larger. 



IV. — Note on the Teeth of the Mastodon a dents i-TROiTES of the 

 Sewalik Hills. By Captain P. T. Cautley.' 



(Bead at the Meeting of the Asiatic Society of Bengal, June 1, 1836.) 



Without fturther preface I refer the reader to the 1st volume of the 

 Ossemens Fossiles, page 268. Figs. 1 and 2, Plate IV., under the head 

 of ' Divers Mastodons.' 



These drawings were presented to Cuvier by M. Faujas, and the 

 fossil was found near Asti in Upper Italy. 



Cuvier merely alludes to this fossil as one of the varieties into which 

 the true Mastodon a dents etroites passes by a greater subdivision and 

 an irregularity of position of the mammillae ; the proportions of length 

 to breadth of the tooth retaining their full and perfect character. 



By comparing the accompanying drawings with the figures above 

 alluded to, there can be no' demur, I imagine, in identifying the Sewalik 

 variety of Mastodon now under review with the Asti fossil. It remains 

 therefore simj^ly to note the peculiarities in form of the tooth : al- 

 though it may be a point for consideration hereafter, whether, as the 

 character of the tooth is so marked, and its peculiarities so rigidly 

 adhered to throughout the whole of the remains found in the Sewaliks, 

 it may not be placed imder a sub-genus, that of ' angustidens,'' with 

 the specific denomination of 31. Sivalensis. 



There is no cortical substance or crusta petrosa ; the tooth consisting 

 •of enamel and ivory only, the former being very thick and massive, as 

 is normal in the mastodons. 



The coronal sm-face consists of a double line of conical and obtusely 

 pointed mammillge : those on the external side being in most cases per- 

 fect, Avhilst those on the inner side are divided by a fissure or fissures 

 into two or three irregularly formed obtuse points. These mammillfe 

 are not, as in the true Mastodon angu'stide>:s, placed transversely or at 

 right angles with the line of surface, but meet each other from right to 

 left alternately, so that the furrow on one side is interrupted by the 

 mammilla on the other ; and the mammillaj on the wholeline of tooth lock 

 into each other in the same way that two seiTated edges opposed to each 

 other might be supposed to do, were they placed in contact. (PL IX. fig. 2.) 



The outer surface of the enamel is smooth, and the space or furrow 

 between each mammilla both on the external and internal surface is 

 marked by a small tubercle, the presence of which however does not 

 appear to be constant. 



' JReprinted from the Journal of the Asiatic Society, vol. v. p. 294. — [Ed.] 



