50 TTNGITLATA. 



the first true molar in both skulls. The palate is gene- 

 rally similar in the two, but the anterior pair of basiocci- 

 pital tubercles are more approximated in the fossil ; both 

 present the same deep concavity in the middle line in 

 advance of the premolars. The molar teeth of the existing 

 form have very square crowns, of a remarkably bovine 

 appearance, and provided with a large internal accessory 

 column, expanded at its inner termination. In the fossil 

 mm. 4 is alone in a condition to exhibit the characteristic 

 features, and this tooth agrees very closely with the molars 

 of the existing species. In the type specimen the crowns 

 of the molars are broken off ; but their bases exhibit the 

 characteristic square form. The united length of m. 1 and 

 m. 2 jn the present specimen is nearly the same as in H. 

 niger, thus indicating that adult specimens of the fossil 

 were about the size of this species. 



The resemblance between the living and fossil species is 

 so close as to leave little doubt of their generic identity. 

 Presented by Dr. Hugh Falconer. 



Genus GAZELLA, Blainville 1 . 



Gazella porrecticornis, Lydekker 2 . 

 Syn. Antilope porrecticornis, Lydekker 3 . 

 Hob. India. 



M. 2254. Fragment of the palate, showing m. 1 and m. 2 on the left 

 and part of pm. 4 on the right side ; from the Pliocene of 

 the Siwalik Hills, India. This is slightly larger than the 

 palate of the living Gazella bennetti, but is in other respects 

 precisely similar; it is highly probable that it belongs 

 to the present species. 



Caufley Collection. Presented, 1842. 



M. 2255, 16536. Two fragments of the left ramus of the mandible ; 

 from the Pliocene of the Siwalik Hills. 



Cautley Collection. Presented, 1842. 



1 Bull. Soc. Philom. Paris, 1816, p. 75. 



s Palseontologia Indica (Mem. Geol. Surv. Ind.), ser. 10, vol. i. p. 158 

 (1878), Antilope. 

 9 Loc. tit. 



