SIWALIK AND NAEBADA PROBOSCIDIA. 
11-192 
Correction . — The perfect state of preservation of the specimens represented in 
the accompanying plates of this memoir, has shown me that I was misled as to the 
structure of the imperfect lower molar from Sind represented in fig. 5 of Plate IX 
of an earlier fasciculus of this volume.^ In that specimen I considered the promi- 
nence on the right side of the figure as being a true transverse ridge, and conse- 
quently that the tooth was a three-ridged one, of which the first ridge was broken 
away : the specimen was accordingly considered as the first lower true molar. A 
comparison of that tooth with the last lower molar of the specimen represented on 
Plate XXX will , however, at once show that the prominence on the right side of 
the broken tooth is in reality merely a talon-ridge, and consequently that the tooth 
is, in truth, the last, and not the first, lower true molar. 
Dentition of D. pentapota7ni(B . — Taking the specimens of the teeth of D.penta- 
potamim described here, together with those figured and described in the earlier 
fasciculus of this volume (Plate IX), we are now acquainted with the greater part 
of the permanent dentition of the species. The known teeth are, in the upper jaw, 
the two premolars, and the first and second true molars, and in the lower jaw the 
last premolar, and the three true molars. The following table gives the dimensions 
of all these teeth, together with those of D. gigantemn : — • 
r Length of penultimate premolar 
I Width of ditto ditto 
Length of last premolar 
I Width of ditto 
’ Length of first true molar 
Width of ditto 
- Length of second true molar 
I^Width of ditto 
Length of last premolar 
Width of ditto 
^ Length of first true molar 
S Width of ditto 
w i Length of second true molar . 
o Width of ditto 
1-^ 
Length of third true molar . 
j^Width of ditto 
D. peniapotamia. D. gxganieum. 
2-3 3-4 
2-1 31 
21 3-4 
2-5 3-7 
275 41 
2-4 3-2 
2-7 3-9 
2-4 3'6 
1-8 3-3 
1 - 74 2-7 
2 - 34 3-6 
1 - 8 3 0 
2 - 4 3‘3 
215 2-9 
2-9 3-8 
2-25 2-45 
The proportionate relations of the upper molars of the two species show that 
those of D. pentapotami(B, which have all been found as detaclied specimens, are 
rightly referred to one and the same species. 
Species 2 : Dinotheiuum indictjm, Palconer. PL XXXI, figs. 1 & 2. 
Distory . — We have now to consider two other molars of an Indian Dinotherimn, 
which are of larger size than any of the previously described specimens, and which 
also difiler from them, to a considerable extent, as regards form. Prom considera- 
’ loc. cit. 
