96 FAUNA ANTIQUA SIVALENSIS. 



Length of fragment, 14*8 in. Width of palate between second molars, 2*3 in. 

 Width of palate between first premolars, l - 6in. Length of four premolars and 

 first and second molar series, 8 - in. Length of four premolar series, 4 - 9 in. Sup- 

 posed depth of nasal notch, 6 - 6 in. Breadth of cranium between anterior angles of 

 orbit, 7*7 in. Between external alveolar borders posteriorly, 7'3 in. Between ditto 

 anteriorly, 2 - 5 in. 



Figs. 6 and 6 a. — Rhinoceros Sivalensis. Fragment of lower jaw, 

 with symphysis and five anterior molars. — B.M. 



Length of fragment, 9 - 4 in. Length of existing portion of symphysis, 3*1 in. 

 Length of molar series, 7" in. Width between the posterior molars, 2 - 7 in. Be- 

 tween anterior ditto, 2- in. Greatest depth of jaw, 3 - 6 in. Thickness of ditto, 

 2* in. 



Plate LXXV. 



Fig. 1. — Rhinoceros Palceindicus. Fragment of upper jaw, left side, 

 with three true molars. 



Length of first molar, 2- in. ; of second, 2-15 in. ; of third along anterior edge, 

 3-1 in. Width of first molar, 3- in. ; of second, 3-2 in. ; of third along anterior 

 edge, 2 - 9 in. 



Fig. 2. — Rhinoceros Palceindicus. Fragment of lower jaw, with 

 three true molars and fourth premolar. — B.M. 



Length of fourth premolar, 1*8 in. ; of first molar, 2*15 in.; of second, 2 - 2 in. ; of 

 third, 2-2 in. Width of fourth premolar, 1*35 in. ; of first molar, 1*3 in.; of second, 

 1-4 in. ; of third, l"3in. 



Fig. 3. — Rhinoceros Palceindicus. — Fragment of lower jaw, with 

 four molars. — B.M. 



Length of first tooth, - 65 in. ; of second, l - 3 in. ; of third, Wo in. ; of fourth, 

 1-75 in. 



Fig. 4. — Rhinoceros Palceindicus. Premolar tooth detached. — No. 

 39,648 B.M. 

 Length along outer edge, 2'5 in. Width of grinding surface anteriorly, 2 - 5 in. 



Fig. 5. — Rhinoceros Sivalensis. Fragment of upper jaw, right side, 

 with three true molars and third and fourth premolar. — B.M. 



Length of third premolar, 1*6 in. ; of fourth ditto, 1*5 in. ; of first molar, W5 in. ; 

 of second ditto, 2 - in. ; of third ditto along outer edge, 2 - 3 in. Width of third 

 premolar, 2-3 in. : of fourth ditto, 2-6 in. ; of first molar, 2*6 in. ; of second ditto, 

 2 - 6in. ; of third ditto along anterior edge, 2'5 in. 



Fig. 6. — Rhinoceros Sivalensis. Lower jaw, right side, with second, 

 third, and fourth premolars, and first and second true molars. — B.M. 



Length of second premolar along outer edge, 1*2 in. ; ot third premolar at centre 

 of grinding surface, 1*2 in. ; of fourth ditto, Win. ; of first molar, 1*6 in. ; of 

 second ditto, 1*9 in. Width of second premolar, "75 in. ; of third ditto, 1*0 in. ; 

 of fourth ditto, 1-15 in. ; of first molar, 1*3 in. ; of second ditto, 1*36 in. Width 

 between anterior angles of second premolars, 2 - 4 in. 



Fig. 7. — Rhinoceros Sondaicus (recent). Upper jaw, right side, with 

 fourth premolar and three true molars. 



Length of fourth premolar, Too in. ; of first molar, 1*6 in, ; of second, 1*9 in. ; 

 of third along outer edge, 2-1 in. 



Fig. 8. — Rhinoceros Sondaicus (recent). Lower jaw, right side, with 

 third and fourth premolars and three true molars. 



Length of third premolar, 1*2 in. ; of fourth, 1*5 in. ; of first molar, 1*6 in. ; of 

 second, 1-8 in. ; of third, 17 in. 



