SIWALIK CAMELOPARD ALIDiE. 
25-123 
Punjab. The remarks made in the previous notice as to the relative height of the 
crowns of the teeth in the giraffe and sivatheroids do not apply to the milk-molars. 
The tooth differs from the corresponding milk-molar of the giraffe, by the 
absence of the ‘lobe’ on the inner side {from which the tooth is viewed ) of the first 
division of the crown, and by the formation of a distinct pit at the antero-internal 
angle of the tooth {right side of figure) . The jaw in which this tooth is implanted 
is only PI inches in depth, and, therefore, the specimen cannot belong to the same 
species as the last. Prom the slenderness of the second jaw it is possible that it may 
belong to the present species, while the first and stouter jaw may belong to H. grande, 
to which a much stouter form of jaw has been assigned. No certainty can, however, 
attach to these determinations. 
Limb-hones. — Among Mr. Theobald’s Punjab Siwalik collection are numerous 
limb-bones of a large ruminant, of smaller and slighter make than those of Siva- 
therium, and probably belonging to the present genus. Some of these bones, namely, 
an associated humerus, fore and hind c cannon-bones,’ a carpus, and proximal phalan- 
geals, were obtained at Niki, and may pretty certainly be referred to the present 
species, whose teeth are abundant in that locality. In the present notice only such of 
these limb-bones as illustrate the divergence of the present genus from Sivatherium 
will be further alluded to. 
Metacarpus . — In figure 10 of plate XYII of this memoir there is represented a 
specimen of the left metacarpus of Mydaspithenum megacephalum, from Niki. The 
specimen is unfortunately broken in the middle, and a certain portion is missing, so 
that the precise length of the bone cannot be ascertained. Erom the diameter of 
the fragments, however, when complete, it could not have been shorter than is re- 
presented (on a scale of 3 H 1 ) in the figure. The bone was associated with the 
carpus, and with one of the proximals phalangeals (figure 11 ). A comparison of the 
figure with that of the metacarpus of Sivatherium (figure I of same plate) shows 
that the two bones are of very different types of structure, that of JELydaspitherium 
being longer, than that of Sivatherium, while its articular surfaces are smaller. The 
shaft of each of the two bones has nearly the same dimensions, the articular ex- 
pansions being relatively smaller than in Sivatherium. 
The form and dimensions of the bone come much nearer to those of the meta- 
carpus of Kelladotherium (figure 5 of same plate), but the Indian bone is slightly 
the more slender of the two, and the condylar expansion is less marked. 
The dimensions of the three above-mentioned metacarpal bones are compared 
in the following table : — 
Sivatherium. 
Hydaspitherium. 
Helladotherium 
Total length 
18-7 
17-0 (?) 
16-0 
Breadth of superior surface 
4-7 
4-2 
4-28. 
„ of inferior . 
4-7 
3*6 
3-95 
„ of single condyle 
22 
1-66 
D 
