ELEPHANTID^;. 33 



29639. Cast of a tooth provisionally regarded as the fourth left 

 lower premolar (so determined from the absence of any- 

 anterior disk of pressure). 



Hastings Collection. Purchased, 1855. 



40739. The fourth left lower premolar, in an early stage of wear ; 

 from Sansan. This specimen agrees almost exactly with 

 the more worn Indian example of the homologous tooth 

 figured in the accompanying woodcut (fig. 5). 



Presented by C. Falconer, Esq., 1867. 



Kff. 5. 



Mastodon angustidens, var. falmndicus. — The fourth left lower milk-molar ; 

 from the Lower Siwaliks of Dera Bugti, north-west frontier of India. \ . 

 Indian Museum, Calcutta, No. A 422. 



29671. The unworn first right lower true molar; from Simorre. 

 This tooth agrees precisely with mTl of No. 36755, and 

 is therefore regarded as homologous ; but it is not certain 

 that (together with the next two specimens) it may not be 

 mm. 4 of a larger individual. 



Presented by M. E. Lartet, 1855. 



40741. An imperfect specimen of a similar tooth, in a partially worn 

 condition ; from Sansan. 



Presented by C. Falconer, Esq., 1867. 



7426. Cast of the first left lower true molar. The original, which 

 is in a half-worn condition, is from the Middle Miocene 

 of Saxony. Mantell Collection. Purchased, 1836. 



29636. Cast of the first left lower true molar. The original, which 

 is in a half-worn condition, and is of a wider type than 

 either of the preceding specimens, was obtained from 

 Sansan. Eastings Collection. Purchased, 1855. 



PART IV. D 



