6G2 Fossil Remains of the Ddduptir Collection. [Oct. 



latest geological manuals show, that in the interval which has elaps- 

 ed since the publication of Cuvier's work a few sites have afforded 

 specimens, but still the remains in comparison with those of other 

 genera are far from being abundant. By reference to the table of 

 Sub-Himalayan fossil genera in the 53rd No. of the Journal of the 

 Asiatic Society it will be observed, that, although here found in 

 greater quantity than in European localities, the relics of the genus are, 

 in comparison with those of most of the other Pachydermata, scarce. 

 Notwithstanding their small number, the specimens in our possession, 

 happening in general to be tolerably perfect, form a series which, 

 though not continuous, is sufficiently perfect to illustrate the dentition 

 of one of the species. 



To the consideration of this species we without further introduction 

 proceed ; premising only, that with the exception of the cranium of 

 which fig. 6, PI. B, is a representation, the whole of the specimens 

 referred to are from the Maginand deposit, a general description of 

 which prefaces our notes on the fossil unicorn- rhinoceros. 



Cranium. The fossil, of which figs. 1 and 2, PI. XXXIV. are re- 

 presentations, is the cranium of the sow of the species to be described. 

 The specimen has been less crushed than is usual, but has not altoge- 

 ther escaped. The nasal bones are not quite centrical, and in their 

 natural position, being thrust over towards the left maxillary by a 

 crush which acted on the right side of the head. The mastoid apophy- 

 ses and the descending tubercles in their front are broken off; the 

 extremities of the pterygoid apophysis are also mutilated : — the zygo- 

 matic apophysis of the temporal, if perfect, cannot be cleared completely 

 from the matrix which adheres to it, without the risk of destroying 

 the process itself and the adjacent parts : both jugals are imperfect, 

 being broken off (as shewn in the profile view of the skull) immediate- 

 ly after their descent from forming the post, orbitary apophysis : the 

 canines are wanting, but their alveoli are very distinct, though small 

 for the size of the head ; this circumstance, in conjunction with the 

 minor development of some parts of the occiput when compared 

 with other specimens, indicates the sex of the cranium. 



With the view of obtaining the difference of proportions consequent 

 on differences of sex, the measurements which form the third column 

 of the subjoined table were inserted ; the half palate of the cranium 

 from whence they are derived is given at fig. 5, PI. B, but the occiput 

 and nasal bones being imperfect, it was not deemed necessary to 

 delineate the specimen either in plan or profile. 



The second column of the table is occupied by the proportions 

 deduced from the dimensions taken upon the cranium of the sow ; and 



