122—24 INDIAN TERTIARY AND POST-TERTIARY VERTEBRATA. 
to female animals. The latter specimens have the same proportions as the one 
measured. 
The molars of the figured jaw are distinguished from those of Bramatkerium 
perimense 1 by their superior size. If, however, the lower molars of the two forms 
had been discovered without other remains, their differences would be insufficient to 
indicate any generic distinctions between their respective owners. 
Erom the lower molars of Vishnutherium 2 the teeth before us are distinguished 
by the absence of any well-marked e cingulum,’ or distinct tubercle in the e median 
valley ; ’ their superior size is another distinctive point of minor importance. 
It is no easy matter, without the actual specimens before one, to indicate how 
the teeth under consideration differ from those of JELelladotherium cluvernoyi , of which 
only some imperfectly developed specimens are figured by M. Gaudry 3 „ 
Since the length of the second true molar in the jaw before us agrees so nearly 
with that of the corresponding upper tooth referred to H. megacephalum and re- 
presented in figure 3 of plate XVIII of this memoir, it seems probable, in spite of 
the opinion expressed to the contrary in the note in the “ Records,” that the specimen 
may be referred to that species. 
Upper milk-molars. — Mr. Theobald’s Siwalik collection has several specimens of 
the upper milk-molars of this species, but as they do not exhibit any striking features, 
they will not be further alluded to. 
Lower milk-molars. — In figure 4 of plate XXI of this memoir is represented a 
fragment of the right ramus of a mandible of a young sivatheroid, collected by 
Mr. Theobald in the Siwaliks of the village of Patela in the Potwar district of the 
Punjab. The specimen contains two teeth, the first of which is broken, and is the 
penultimate milk-molar ; but has only the posterior half remaining and consisting 
of a distinct ‘ crescent ’ and c lobe.’ The second tooth has three complete divisions, 
and is thus shown to be a last milk-molar. It has also a large tubercle in each of 
the ‘ valleys,’ and closely resembles the corresponding tooth of the giraffe (plate xvi, 
figure 8) and of the sivathere (plate xxi, figure 3), being intermediate in size between 
the two. The specimen is referred to the present genus from its clearly belonging to 
a giraffoid animal, and from its relative size. Its specific determination is, however, 
a matter of some doubt. The length of the last milk-molar is 1’9 inches ; and the 
depth of the jaw P95 inches, at the front of this tooth. A precisely similar speci- 
men is described on page 95 of the eleventh volume of the “ Records,” where it was 
suggested that it might belong to the present species. 
In figure 3 of plate XVI of this volume is represented a small lower molar of a 
giraffe-like animal which on page 87 of the notice in the “ Records ” already quoted, 
was considered to be the left penultimate premolar of Camelopardalis sivalensis. The 
specimen last noticed shows, however, that it must probably be the penultimate 
milk-molar of a species of Hydaspitlierium, as it agrees so closely with the broken 
specimen of that tooth in the last-mentioned jaw . This specimen, in company with 
another precisely similar one, was collected by Mr. Theobald in the Siwaliks of the 
1 Supra, Vol. I, pi. VII, fig. 13. 2 Ibid., fig. 2. 3 Loc. cit., pi. XLI, fig. 3. 
