88 
Records of the Gtoloyical Svrrey of India. 
[voL XI _ 
sivalensis the two teeth are of the same length; moreover, from the width of the 
premolar, it seems probable that that tooth belonged to a smaller individual than 
that to which the true molar belonged; and it therefore follows that the penulti¬ 
mate premolar was probably longer than the penultimate molar. 
The above-mentioned specimen is, as I have said, rather small for C. sival&n- 
sis, and yet, I think, it may probably have belonged to a small individual of that 
species. The next specimen to be noticed consists of the corresponding tooth of 
the left side, together with the anterior premolar. There is considerable differ¬ 
ence between the size of these teeth and that of the last, and yet I should not have 
thought from this alone that we ought to refer the present specimens to a dis¬ 
tinct species ; another character, however, to be shortly noticed, shews us that this 
must have been the case. 
The hindmost of these teeth is almost identical in form with the last specimen, 
the only difference being that the antero-internal column has its enamel fold 
forming a cleft on the inner side, as in Sivatherium, and not a central pit, as in the 
last specimen. Such a variation in a tooth so liable to vary as an anterior pre¬ 
molar cannot be taken as having any great specific value. 
The first premolar is a simple tooth consisting of two main columns in the 
same antero-posterior line, and a smaller talon-column in front. In the recent 
Giraffe there is no anterior talon-column; but a small one occurs in Sivatherium. 
Below I have given the dimensions of this specimen, together with the dimen¬ 
sions of the last premolar and two firet molars of the lower jaw of G. sivalensis, 
described by me in the volume of the “ Palseontologia Indica ” above referred to 
(p. 41), as being the largest specimen known; in the second column I have added 
the corresponding dimensions of the living species : — 
Length of second molar 
Width of „ „ 
Length of iirst molar . 
Width of „ „ . 
Length of last premolar 
Width of „ „ . 
Length of penultimate premolar 
Width of 
Height of „ ,, 
Length of first premolar 
Width of „ 
Depth of jaw at first preraolar 
Fosdl. 
C. qiraf. 
Inches. 
1 nchea. 
1*25 
115 
1*00 
0-90 
L30 
1-00 
1-00 
0-90 
1-15 
0-90 
0-90 
0-80 
1-40 
0-95 
0-Sl 
0-86 
0-75 
0-85 
0-96 
0’70 
0-51 
0-55 
1-20 
1-70 
From the above measurements it will be seen that the present teeth are not 
too wide to have belonged to G. sivalensis; one very important point, however, 
is against the present specimen belonging to that species. It will be seen from 
my previously mentioned notice of the lower jaw of G. sivalensis that at the second 
molar that specimen was three-quarters of an inch deeper than the jaw of 
0. giraffa, while the present specimen at the penultimate prcmolar is half an inch 
leas deep; this, thei-efore, pretty conclusively proves that the present specimen 
could not have belonged to G. sivalensis, but to a second species with a mandible 
even more slender than that of the living species ; the specimens are too large to 
