SIWALIK CAMELOPABDALIDiE. 
31—129 
while the size of the specimen, apart from other characters, distinguishes it from 
the jaw either of Vishnutherium or Bramatherium. In the flatness of the inner 
surfaces of the ‘ lobes ’ of its molars this specimen corresponds with the upper 
molars referred to R. grancle. The two series of teeth further agree in respect of 
size, and in the relative degree of obliquity of their component parts to the long axis 
of the jaw. On these grounds the specimen is provisionally referred to the last- 
named species. The form of this mandible indicates that its owner was a stouter- 
made animal than R. megacephalum, in which respect it is nearer to the sivathere. 
It may he added that the central enamel pits are very large, and that there are 
no tubercles in the outer c valleys,’ except in the second * valley ’ of the last true 
molar, where there is a large conical tubercle. Other teeth, probably belonging to 
the same species seem to indicate some degree of variation in this respect. 
Calcaneum. — In figure 1 of plate XVIII of this memoir is represented, of half 
the natural size, a right calcaneum of a large ruminant, different from the corre- 
sponding bone either of Sivatherium or of R. megacephalum, and presenting consider- 
able resemblances to that of the giraffe. The specimen has lost its posterior apophy- 
sis, and is noticeable for its comparative shortness and great vertical depth. Being 
a deeper bone than the calcaneum of H. megacephalum , this specimen would cor- 
respond well with the lower jaw referred to R. grande , and is accordingly provi- 
sionally placed under that species. It should, however, be observed that this speci- 
men differs more from the calcaneum of R. megacephalum than does the latter from 
the corresponding bone of Sivatherium, whence there is a possibility of the specimen 
before us belonging to a distinct genus, to which the so-called R. grande may really 
belong, or which may be new. Other parts of the skeleton are necessary to deter- 
mine this point. The length of the specimen is 7 inches, and its greatest vertical 
diameter 3 ’8 inches. 
Proximal phalangeal . — In figure 8 of plate XVII is represented, of half the 
natural size, the proximal phalangeal bone of a sivatheroid, collected by Mr. Theo- 
bald in the Sivaliks of Niki, which may possibly belong to the present species. The 
bone is relatively shorter and stouter than the proximal phalangeal of R. megace- 
phalum, from which it has been thought that it may belong to the present species. 
It differs also in the form of the inferior condyles ; the bone indicates an animal 
more nearly allied to the Sivatherium than to the giraffe. 
Distribution. — All the remains provisionally referred to this genus have been 
obtained from the Siwaliks of the Punjab to' the westward of the River Jhelam. 
Genus V : BRAMATHERIUM x , Falconer. 
Another genus of four-horned ruminants, of large size, and distinguished from 
the last by the arrangement of the horns, and containing only a single species. 
1 Br&na, a member of the Hindu trinity, and Therion. 
