ELEPHANT AND MASTODON. 



121 



The anterior ridge of the specimen is worn into a deep transverse disc, 

 of which the anterior botmdary edge of enamel is wanting. Tlie second 

 and third are also worn into continuous excavated discs ; the fourth 

 shows the caps of three large mammiUse slightly touched, and the talon 

 consisting of three mammilla in a transverse row is intact. 



The accessory mammillse described as bounding the valleys on the 

 inside of the Burmese Embassy specimen (No. 1) are shown of very large 

 size in this specimen. 



Dimensions. 



Inches 

 Extreme length of fragment ....... 8- 



Height of section in front ........ 7'8 



Ditto ditto behind 6-2 



Diameter behind ......... 655 



Length of fragment of molar . . . . . . .6-1 



Greatest width in front . . . . . . . . 4'1 



Height of enamel crown in front 1'4 



The colour of the specimen differs from most of the Ava fossils in 

 absence of a ferruginous tint, and the enamel is greyish and pearly, 

 looking as in No. 1 : very little matrix upon it.^ 



No. 5. Mastodon ? — Fragment of lower jaw, left side, divided 

 longitudinally nearly in the middle, jet black in colour, with a smaU 

 quantity of sandy matrix; no indication of a tooth or alveolus but seg- 

 ment of a canal (dentary ? ) running longitudinally near the inferior 

 border. The fragment is in two joined pieces. 



Extreme length, 11-^ inches. 



Identification very obscure. 



No. 6. Mastodon latidens. — Fragment of molar divided vertically 

 and lengthways, consisting of the back part with three well worn ridges 

 and a talon, and one great posterior fang. The end of the talon bears 

 upon its ivory surface the disc of pressure of a molar behind. The 

 enamel is very thick, and in every respect as in specimen No. 4. The 

 worn surface of the discs agrees exactly with those of the Ava speci- 

 mens figured in the Fauna Antiq. Siv. PI. XXXI. figs. 7, 8. 



Extreme length of specimen 



Height from fang to surface of crown 



Inches 

 . 3-5 

 . 3-5 



No. 7. Mastodon ? — Fragment consisting of the last ridge and talon 

 of a molar tooth, with the mammiUjB in germ and entire. The 

 mammillae numerous and closely aggregated together. Species in- 

 determinable. 



No. 28. Mastodon. — Proximate phalanx of hind leg, very thick and 

 massive, highly coloured with iron infiltration. 



No. 29. Mastodon. — Mutilated fragment of a large massive acetabu- 

 lum in two pieces, black and heavy like a mass of iron. 



• The engine turned-like marking, re- 

 sembling that of a watch-case, which 

 Owen states to be ' peculiar to the tusks 

 of Proboscidian Pachyderms,' is dis- 

 tinctly visible at the posterior end of the 

 ivory in this molar, showing that the 



ivory of the tusk does not differ in 

 structure from that of the molar. The 

 term 'dentine'' is therefore untenable: 

 Vide Owen, ' Odontography,' p. ii. Intro- 

 duct, and p. 627. 



