492 Sub -Himalayan Fossil Remains [Aug. 



The difference in the occipital condyles amounting to met. 0.065 in 

 excess of the Indian rhinoceros causes a marked discordance in the 

 ratios of these dimensions ; hut, as the left condyle and the adjacent 

 parts are wanting in the fossil, the measure was obtained by doubling 

 what appeared to be the exact half dimension ; this of course is not so 

 satisfactory as if the condyles had been perfect ; any inaccuracy conse- 

 quent on this circumstance could not, however, amount to a quantity 

 which would materially alter the deduced proportion. The occiput, 

 figs. 8, 9, PI. XVII. is fortunately very perfect ; from its dimensions, 

 which prove it to have belonged to a smaller animal than the cranium 

 of PI. XV. may also be concluded, that though inferior in size to 

 Cuvier's specimen of the Indian rhinoceros, which in greatest breadth 

 of occiput exceeds it by met. 0.039, yet the space occupied by the 

 condyles is 0.010 in favor of the small fossil occiput. In both of the 

 fossils the depressions near the summits of the occiputs on each 

 side of the mesial projections are deeper than those of the existing 

 species. 



The zygomatic arches not being entire, and the matrix being 

 uncleared from the portions which remain, no particular remarks can 

 be passed on them. 



The sutures cannot anywhere be traced ; a circumstance which pre- 

 cludes the notice of particulars frequently of importance in the compa- 

 rison of species. 



The least thickness of the cranium is but met. 0.001 greater than 

 that of the Indian rhinoceros ; and therefore in proportion to the 

 modulus, yields a less ratio than that species. 



The breadth at the orbits is met. 0.024 greater than in the existing 

 species ; consequently the skull does not in this part present any 

 material discordance of proportion. 



The length between the auditory foramen and the anterior of the 

 orbit is 0.043 met. greater in the fossil ; this measurement affords a 

 proportion only differing met. 0.002 from that obtained from the 

 existing species. 



The infra-orbitary foramen is situated similarly to that of the 

 Indian rhinoceros. 



The nasal arch is massive and much developed ; the spring of this 

 arch is perpendicularly over the anterior of the second molar ; that 

 is a little more retired than in the Java or Indian rhinoceros skulls, 

 given in Cuvier's PL 4. 



The breadth of the palate has not been given in the table of 

 dimensions, because the first and seventh molars not being perfect on 

 both sides, measurements corresponding to those of Cuvier's could 



