94 



RHINOCEROS. 



The inferior last temporary molar preserved unworn, in company with the first 

 permanent true molar protruded, in a fragment of lower jaw, exhibits a disposition 

 to the formation of three lobes, by the ordinary anterior normal lobe being deeply 

 notched at its anterior horn, while in advance of this a smaller transverse lobe, 

 slightly bent forward and inward, is developed at its outer side. A continuous 

 basal ridge surrounds the tooth, which otherwise than in the characters given 

 corresponds with the permanent molars. (XIV. 9, 10.) 



MEASUREMENTS OF THE HEAD AND TEETH. 



Length of skull from the upper margin of the occipital foramen to the anterior 



part of the first molar tooth 

 Breadth of inion at ends of mastoid processes 

 Greatest breadth at the zygomata (estimated) 

 Breadth at the post-glenoid tubercles . 

 Distance from meatus auditorius to the lachrymal tubercle 

 Height of face from the alveolar margin on a line with the middle of tli 

 Greatest breadth of forehead at the supra-orbitar processes 

 Breadth of hard palate about its middle 

 Length of upper molar series 

 Length of lower molar series 

 Breadth of last superior molar 

 Breadth of fourth molar .... 

 Breadth of first molar .... 



Antero-posterior diameter of fifth upper molar 

 Antero-posterior diameter of second upper molar 

 Antero-posterior diameter of first upper molar 

 Antero-posterior diameter of last lower molar 

 Antero-posterior diameter of first (of six) 

 Breadth of fourth lower molar 



Inclics. Lines. 



9 







3 







5 



2 



3 



4 



4 



(> 



3 



4 



3 



5 



1 



7 



4 



10 



4 



4 







11 







11 







6 







11 







8i 







CJ 







11 







7d 







Gi 



