30 FAUNA ANTIQUA SIVALENSIS. 
and beak. The left side has been restored in outline. The ascending 
ramus is broken off.—B.M. 
Figs. 5 and 5a.—E. insignis. Lower jaw, left side, with ascending 
ramus, but condyle broken off. Contains portion of last true molar. 
Fig. 5 a@ is a view of inner surface, with large opening for nutritious 
artery.—B.M. 
Figs. 6 and 6 a.—F. insignis. Fragment of lower jaw, left side, 
of smaller individual, including ascending ramus and condyle.—B.M. 
Vie. 7.—Elephas planifrons. Fragment of lower jaw with portions 
of two true molars.—B.M. 
PuaTe XVIII. A. 
Figs. 1 and 1 a.—Elephas planifrons. Last molar, lower (upper in 
MS.) jaw, left side. An enormous specimen in H. F.’s collection. 
Enamel very thick and denticies few. Hight plates. Is very like fig. 9 
of Plate XI., and fig. 8 of Plate XIV.—B.M. 
Length, 10°4in.; width, 4*1in.; height, 3-2 in 
Figs. 2 and 2 a.—ZH. planifrons. Last lower molar, right side. A 
‘very large specimen; enamel very thick; plates low; has a great fang 
in front; true type of large HE. planifrons. This specimen is figured 
in a former plate (XI. 5).—B.M. 
Length, 10°5 in. Width, 4:2 in. Height, 3°2in. Height of plate where broken 
behind, 3°8 in. 
Figs. 3 and 3 a. ~Elephas insignis. Lower jaw containing on either 
side a molar with twelve ridges and a heel, the first six ridges worn ; 
nine denticles to the seventh “ridge ; one lar eve outer mentary foramen, 
none inside.—B.M. 
Length of jaw, 20°in. Height at alveolus, 9° in. Length of molar, 12-2 in 
Width of molar, 3°5 in. 
Figs. 4 and 4 a.—ZL. insignis. Lower jaw, right side, with symphysis, 
but ascending ramus broken off. Contains two molars im situ; four 
ridges to first and seven to second; plates very deep. Edge of diasteme 
sharp; no mentary foramen shown.—B.M. 
Extreme length of fragment of jaw, 18:2 in. Height at alveolus, 6-6 in. Greatest 
width, 6.6 in. Width of anterior molar, 3°4 in. Oflast molar, 3°5 in. 
Figs. 5 and 5 a.—E. insignis. Lower jaw, left side, containing last 
molar with eleven ridges and a heel of two points; the seven ridges in 
front are worn; plenty of cement. One large mentary foramen.—B.M. 
Extreme length of fragment, 19° in. Height at alveolus, 7:4 in. Greatest 
width, 7°4 in. ‘Length of Paola 11:3 in. Width in front, 4° in. 
Figs. 6 and 6 a.—Mastodon Sivalensis. ower jaw. Very indistinct 
specimen ; teeth utterly worn out; enamel gone. One mentary fora- 
men outside. Shows well the non- -divergence of the rami behind.—B.M. 
Height of jaw to alveolus, 8° in. Teneth | of molar, 8°5 in. Interval between 
molars in front, 2°8 in. Interval between molars behind, 2°8 in. 
HACE, NOLEN 
Figs. Land 1 a.—Elephas insignis. Fragment of upper jaw containing 
first (b) and second milk molars, in situ. The second milk molar shows 
six ridges.—B.M. 
Its length is 2°7 in., and greatest width, 1:6 in. It closely corresponds with a 
specimen in the Asiatic Society of Bengal. 
