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. 
Inches. Lines. 
Length of skull from the upper margin of the occipital foramen to the anterior 
part of the first molar tooth 9 0 
Breadth of inion at ends of mastoid processes 3 0 
Greatest breadth at the zygomata (estimated) b) 2 
Breadth at the post-glenoid tubercles 3 + 
Distance from meatus auditorius to the lachrymal bevels + 6 
Height of face from the alveolar margin on a line with the middle of he orbit 3 4 
Greatest breadth of forehead at the supra-orbitar processes 3 5 
Breadth of hard palate about its middle 1 tb 
Length of upper molar series 4 10 
Length of lower molar series 4 4 
Breadth of last superior molar 0 11 
Breadth of fourth molar 0 11 
Breadth of first molar 0 6 
Antero-posterior diameter of fitth upper aie 0 ini 
Antero-posterior diameter of second upper molar . 0 83 
Antero-posterior diameter of first upper molar 0 63 
Antero-posterior diameter of last lower molar 0 11 
Antero-posterior diameter of first (of six) 0 2 
Breadth of fourth lower molar 0 64 
