ELEPHANT AND MASTODON. 61 



appears to furnish another example of the third milk molar of the 

 upper jaw, left side, of this species. The crown is divided into 

 three ridges, with a small posterior talon. It corresponds closely 

 to the Gers specimens in dimensions, being three inches long by 

 two in width. Von Meyer describes this tooth as the second milk 

 molar of M. angustidens, but the size would seem to be con- 

 clusive against the correctness of this determination. Kaup com- 

 pares it to the third upper molar of his M. longirostris. (Oss. 

 Foss. de Darmst. p. 81.) 



With regard to the first and second upper milk molars, neither 

 of these teeth having yet been observed in situ in the jaw, we are 

 unable to refer with confidence to any specimens for their charac- 

 ters. But we are inclined to regard the tooth described by von 

 Meyer (Georgens. p. 38, tab 1, fig. 4), as representing the 

 penultimate or second, and fig. 2 of the same plate as the first. 

 The former measures 2.2 inches by 1.4, and is composed of three 

 ridges, which are so far advanced in wear as to furnish no good 

 diagnostic characters. Von Meyer refers it with doubt to the last 

 milk molar of the lower jaw, while Kaup considers it to be the 

 second upper of the left side of his M. longirostris. 1 The 

 specimen (fig. 2 of von Meyer's plate) here regarded as the ante- 

 penultimate or first milk molar, has a square crown composed of 

 four points. It measures 1.6 inches in length by 1.4 in width, 

 resembling closely in form and dimensions the small Simorre 

 specimen figured by Cuvier (Diver. Mast. pi. 1, fig. 2), which 

 is also about 1.6 in. long by 1.4 wide, and is regarded by M. de 

 Blainville as the first upper molar of M. angustidens. This 

 eminent palaeontologist assigns the same place to several other 

 specimens from M. Lartet and others ; but such of these figures 

 as are susceptible of exact determination, from their being found 

 in situ in the jaw, are derived from Auvergne and Eppelsheim 

 specimens of M. longirostris. The same remark applies to M. 

 de Blainville's figures and descriptions of the second milk molar 

 in both jaws. 



Of the inferior milk molars, the two anterior, like the upper, 



1 Oss. Foss. de Darmst. Pt. iv. p. 73. 



