DESCEIPTION OF PLATES. 517 



'Fig. ^. — Rhinoceros platyrhinus. Upper jaw, right side, with third 

 and fourth premolars and three true molars. The first true molar is 

 imperfect. — B.M. 



Length of third premolar, 1-6 in. ; of fourth ditto, 1-8 in. ; of fragment of first 

 molar, extreme, I'Sin. ; of second molar, 1-9 in. ; of third ditto along outer edge, 

 2-2 in. Width of third premolar, 2-7 in. ; of fourth ditto, 2-8 in. ; of second molar, 

 2-9 in. ; of third ditto along anterior edge, 2-56 in. 



Fig. 10. — Rhinoceros platyrhinus. Lower jaw, right side, and sym- 

 physis, containing very large outer and small inner incisor of both sides, 

 second, third, and fourth premolars, and first two true molars of right 

 side.— B.M. (Reproduced in Plate XIV. fig. 4.) 



Length of second premolar, 7 in, ; of third ditto, 1-4 in. ; of fourth ditto, 

 l'65in. ; of first molar, 1-46 in. ; of second ditto, 2- in. Width of second premolar, 

 •45in. ; of third ditto, -85 in. ; of fourth ditto, Tl in. ; of first molar, 1-05 in. ; of 

 second ditto, r2 in. Width between second premolars, 3-.5 in. ; ditto between outer 

 margins of external incisors, 3-65 in. Oblique width of external incisor, 1-5 in. 

 Thickness externally of ditto, oblique, -7 in. Length of exserted portion along outer 

 edge, 2-1 in. 



Fig. 11. — Rhinoceros platyrhinus. Penultimate true molar upper 

 jaw, right side, detached, but shattered. Fig. 11 a. — Ditto, ditto, re- 

 stored.— B.M. 



Fig. 12. — Last trtie molar upper jaw, right side. — B.M. 



Fig. 13. — Rhinoceros {Acerotherium?) Perimensis (from Perim Island). 

 Fragment of lower jaw, with three true molars and first premolar. 

 Length of first true molar, 1'1.5 in. ; of second, 1-4 in. ; of third, 1-5 in. 

 Fig. 14. — Rhinoceros Perimensis. Premolar tooth, detached. 

 Fig. 15. — Rhinoceros Perimensis. Molar, detached and shattered, 

 Fif. 16. — Rhinoceros Perimensis. Molar, detached and shattered. 



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Plate LXXVI. 

 Divers Indian Fossil Species of Ehinoceros. 

 Figs. 1 and 1 a. — Fragment of left humerus, near upper end, from 

 the Niti Pass. — B.M. (See antea, p. 173, and Plate XV.) 



Leno-th of fragment, 5'9 in. Breadth, 3-5 in. Greatest thickness of fractured 

 surface, 2-3 in. 



Fio-. 2. Fragment of left humerus, near upper end, from the Niti 



Pass. 



Length of fragment, 5-2 in. ; greatest breadth, 5-2 in. ; thickness, 2-3 in. 



Pio-. 3. Upper extremity and portion of shaft of left radius, from the 



Niti Pass.— B.M. 



Length of fragment, 6- in. ; greatest antero-posterior diameter of superior arti- 

 cular surface, 2-5 in. Transverse diameter of perfect portion, 2-1 in. Transverse 

 diameter of shaft at fractured portion, 2'1 in. Antero-posterior diameter of ditto, 

 1-6 in. 



Pig. 4. — Upper extremity and portion of shaft of tibia, from the 

 Niti Pass.— B.M. 



Length from anterior margin of the crista tibise to posterior border of articular 

 surface, 4-8 in. Breadth of inner condyloid fossa, 2-6 in. Antero-posterior diam. of 

 inner condyloid fossa, centre, 2-3 in. 



