SIWALIK AND NARBADxi PEOBOSCIDIA. 
85—206 
}'>eiiultimate upper true molar of a cranium of S. insignis^ in the Indian Museum, 
the ridges are still more curved than in the present specimen. 
First loiver true molar. — The two lower molars of a Stegodon represented in 
Plates XXIXA, fig. 2, and XXIXB, fig. 6, of the “ Pauna Antiqua Sivalensis,” 
are classed by Dr. Palconer as the first true molars of Stegodon homhifrons. Each 
of these teeth carries seven low broad ridges and a talon. These teeth carry one 
ridge more than the corresponding upper molar, and the same number as the cor- 
responding tooth of S. insignis. 
Second upper true molar. — In the Indian Museum there are two palate speci- 
mens of a Stegodon, with the nearly complete penultimate molars, each of which 
carries seven ridges and a talon. These ridges are thick and low, and the valleys 
have but little cement. In the smaller specimen the ridges are quite straight, but 
in the larger they are bent and irregular, like those of the first upper molar des- 
cribed above. Erom the breadth and lowness of the ridges there is no doubt 
but that these teeth belong to S. hombifrons. The corresponding tooth of S. insignis 
has nearly always eight ridges, which are much higher, and which contain more 
cement in the valleys. The length of the tooth in the smaller specimen is 7'4< 
inches, and its greatest width 3'4 inches ; in the larger specimen the length of the 
corresponding tooth is 8-3 inches, and its greatest width 3*9 inches. The teeth are 
much worn and somewhat broken, and are not, therefore, calculated to afford a 
good figure. 
Second loioer true molar. — A second lower true molar of this species is figured 
by Palconer in Plate XXIXA, fig. 3, of the “ Eauna Antiqua Sivalensis.” That 
tooth carries seven ridges and a hind-talon, the front one having probably been 
worn away. The ridges are low and blunt, and seem to carry but few cusps. A 
corresponding tooth in the Indian Museum shows the same number of ridges, and 
s ma ll fore-and-aft talons. The ridges are much lower and blunter than those of 
the corresponding tooth of S. insignis, in the same collection, and the valleys 
contain much less cement. The tubercles on the two last ridges are only five or six 
in number, while those on the corresponding ridges of the tooth of S. insignis carry 
eight or nine. The length of the second lower molar of S. hombifrons is 7' 7 inches, 
and its greatest width 3’3 inches. The tooth being somewhat battered would not 
afford a good figure ; Ealconer’s figure, though on a small scale, is, however, amply 
sufficient to distinguish this tooth. 
Third tpper true molar. — The cranium figured in Plates XXVII and XXVIII 
of the “ Eauna Antiqua Sivalensis” exhibits the last true molar of the present 
species. The tooth of either side carries nine ridges and a talon ; its length is 10' 2 
inches and its width 3 A inches. The antero -internal extremities of the molars in 
this cranium are only separated by an interval of 1 inch; another skull in the 
' This cranium (No. ) is described by Dr. Falconer at page 41 of the “ Catalogue of the Fossil Vertebrata in 
the Museum of the Asiatic Society of Bengal.” No notice is, however, taken of the curvature of the ridges, probably 
.showing that the author thought it a point of no importance. 
