185—4 
SIWALIK AND NARBADA PROBOSCIDIA. 
logical Memoirs,”^ under the name of Antoletlierium is entirely incorrect. It 
appears probable that Dr. Dalconer never saw the original specimen, but made bis 
new genus Antoletlierium solely on the evidence of the imperfect drawing from which 
the figure was taken ; a copy (or the original) of this drawing was sent by Dr. 
Falconer to Professor Owen, whose note on the subject will be found on page 416 of 
the first volume of the “ Palseontological Memoirs.” 
This sj)ecbnen contains portions of three molar teeth, all more or less damaged, 
Imt of which the central one is the most complete; the tooth on the left hand carries 
two transverse ridges, connected by a median antero-posterior bridge, and is fairly 
well rejoresented in the figure in the “ Palaeontological Memons.” The central 
tooth carries three ridges, of which the one on the right side of the figure is the 
narrowest, and is separated from the adjacent ridge by a transverse valley, which is 
narrower than the valley between the two ridges on the left side of the figure ; antero- 
posterior ridges connect the three transverse ridges. In Dr. Falconer’s engraved figure 
this central tooth (B) is erroneously represented, as having only two transverse ridges, 
its third ridge having been added to the broken tooth on the right side of the figure 
(C in Falconer’s figure). The third tooth (on the right side of the figure), has a 
higher and larger crown than either of the others ; unfortunately only a portion of 
its first ridge remains : the worn surface of this ridge slopes towards the right side 
of the figure, and the dentine surface is largest on the lower border of the figure. 
From the evidence of the incomplete drawing sent by Dr. Falconer, Professor 
Owen remarks “ the tooth B {central tooth) is more worn than A {left tooth in 
figure) and A than C {right tooth in figure). B may therefore be molar 1, and C 
premolar 4, or the last premolar, A being the second true molar.” 
The relative conditions of wear of the three teeth are precisely as stated by 
Professor Owen, and the central three-ridged tooth is undoubtedly the first true 
molar : the position of the other two teeth in the molar series was, however, wrongly 
determined by Professor Owen. If we refer to De Blainville’s or Kaup’s ® figures of 
the lower dentition of Dinotherium, we shall find, on looking at the first molar, and 
the two adjacent teeth, that the first molar is the most worn, the last premolar the 
next most worn, while the second true molar is the least worn of the three. In our 
specimen, therefore, the tooth on the left {A of Trofessor Owen) is the last premolar ; 
the central tooth, as we have said, is the first true molar, while the broken tooth on 
the right {C of Professor Owen), is the second true molar. That this is really the 
case, irrespective of the state of wear of the teeth, is proved by the worn smdace 
of the ridge of the right-hand tooth, sloping towards the right-hand of the figure, 
since in all species of Dinotherium the worn surface slopes towards the hinder 
extremity of the jaw. Again, the hindmost ridge and valley of the first lower molar 
1 Vol. I, Plate XXXIV, figs. 1-2. 
2 Pal. Mem. loc. cit. 
Blainville: “ OsteograpLie des Mammiferes,” Atlas, Dinoihernim, PI. Ill : — Kaup. “Ossemeus Fossiles de 
Darmstadt,” PI. la. 
