EHINOCEEOS, 



159 



Eeferring to the table of dimensions it will be observed, that the 

 height of the occiput is in the fossil less by met. 0'021 than the 

 corresponding measure of Cuvier's Indian rhinoceros ; but the greatest 

 breadth of the occiput is met. 0'036 in favour of the fossil ; relatively 

 to the space occupied by the seven molars, these two measurements 

 attain a less development in the fossil than in the existing animal. 

 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 ; but, 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 con- 

 sequent on this circimistance 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., it 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 O'OIO in favour of the small fossil occiput. In both of the 

 fossils tb.e 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 

 precludes the notice of particulars frequently of importance in the 

 comparison of species. 



The least thickness of the cranium is but met. O'OOl 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 skiiU does not in this part present any 

 material disjordance of joroportion. 



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-orbital foramen is situated similarly to that of the Indian 

 rhinoceros. 



