40 FAUNA ANTIQUA SIVALENSIS. 



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

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



Height 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. bombifrons. 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 alveolus, 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. bombifrons. 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, 2 - 7 in. Interval behind, 3 - 3 in. Length of right 

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



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

 side, with four ridges. — B.M. 



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



Fig. 6. — E. bombifrons ? 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. bombifrons. Portion of lower jaw, with molar 

 showing 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. bombifrons. Lower jaw, right side, of a small 

 variety, but old. It is figiued 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. Museum. 



Height of jaw to alveolus, 7'5 in. Width behind, 6'5 in. Width in front, 4-5 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 two ridges and a front talon. 



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



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, 7'25in. Width in front, 3 - l in. Width behind, 2'9 in. 



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



