460 FAUNA ANTIQUA SIVALENSIS. 



ridges worn but the last ; the two first worn out ; a long sloping 

 diastema ; two outer mentary foramina. — B.M. 



Heiglit of jaw to alveolus, 7" in. Thickness in front, 3-4 in. Thickness behind, 

 6- in. Length of molar, 6-4 in. Width in front, 2-3 in. Width behind, 2-9 in. 



Figs. 3 and 3 a. — E. homhifrons. Portion of lower jaw, left side, 

 with one large outer mentary foramen, and penultimate true molar, 

 showing 7 ridges and a large heel. — B.M. 



Extreme length of fragment of jaw, 15- in. Height to alveolns, 7"3 in. Length 

 of molar, 8-5 in. Width in front, 2-8 in. Width behind, 3-2 in. 



Figs. 4 and 4 a. — E. homhifrons. Fine specimen of anterior portion 

 of lower jaw, both rami with symphysis. Contains the penultimate 

 true molar of either side, with 7 ridges and a heel. Shows also the 

 commencement of the last tooth behind, and proves the tooth (fig. 2) 

 to be the first true molar. Jaw is deficient on both sides behind the 

 penultimate. — B.M. 



Length of fragment, 14-3 in. Height to alveolus, 7' in. Thickness behind, 7" in. 

 Interval between rami in front, 27 in. Interval behind, 3-3 in. Length of right 

 molar, 8- in. Width in front, 2-9 in. Greatest width, 3-4 in. 



Fig. 5. — E. homhifrons ? Fragment of molar, from lower jaw, right 

 side, with four ridges. — B.IM. 



Length, 5-8 in. Width, 4-5 in. 



Fig. 6. — E. homhifrons ? Fragment of molar with three ridges and 

 a heel. ' Doubtful what figs. 5 and 6 are.' — H.F. 

 Length, 4'4 in. Width, 4'5 in. 



Figs. 7 and 7 a. — E. homhifrons. Portion of lower jaw, with molar 

 shoAving 7 ridges, counting the last ; no heel ; another tooth in germ 

 behind ; is apparently the first true molar, with the second, or penul- 

 timate, coming behind it. — B.M. 



Length of anterior molar, 6'5 in. Width, 2'7 in. 



Figs. 8 and 8 a. — E. homhifrons. Lower jaw, right side, of a small 

 variety, but old. It is figured chiefly for its small size. The tooth is 

 certainly the last molar ; it is wide behind and very thick ; the discs of 

 wear are peculiar. — Specimen in Geol. Soc. Musemu. 



Height of jaw to alveolus, 7"6 in. Width behind, 65 in. Width in front, 45 in. 

 Length of tooth, 7'8 in. Width behind, 3- in. 



Plate XXIX. B. 



Figs. 1 and 1 a. — Elephas insignis. Fragment of anterior half of 

 second milk molar, of left lower jaw, with tAvo ridges and a Iront talon. 

 Length of fragment, 1'7 in. Extreme width, 1-4 in. Height, 1-2 in. 



Figs. 2 and 2 a. — Elephas Ganesa. Fragment of lower jaw, right 



side, with the third milk molar entire, presenting 7 ridges and a 



heel. 



Length, 4-6 in. Width in front, 1-4 in. Width behind, 2-2 in. 



Fig. 3. — E. Ganesa. Fragment of lower jaw, with three molars 

 (second and third milk, and posterior 5 ridges of first true). 



Figs. 4 and 4 a. — E. Ganesa. Fragment of lower jaw, right side, 

 with fifth or penultimate molar, presenting 8 ridges. 



Length, 7-25 in. Width in front, 3-1 in. Width behind, 2-9 in. 



Figs. 5 and 5 a. — Elephas homhifrons. Fragment of lower jaw, right 



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