SIVATHEKIUM GIGANTEUM. 271 



length, of the bone, and at either end there is a fissure. The 

 nature of the two bones is observed on the outer surface, 

 where the ulna forms a prominent ridge along the posterior 

 and outer angle of the bone. In the lower third, the radius 

 retires from this ridge, and a longitudinal farrow is observed. 

 The olecranon projects considerably behind the upper end of 

 the radius. The latter presents three distinct articular pits 

 for the corresponding prominences on the lower surface of 

 the humerus ; the imiermost is the largest and the middle 

 one the deepest. The anterior tuberosity below the articu- 

 lation is very prominent. In the camel the ulna is invisible 

 at the diaphysis, and the upper surface presents only two pits, 

 the two outer ones being confluent. The lower end presents 

 more marked elevations and depressions than in the camel. 

 The cavity which receives the semilunar bone is much larger, 

 and assumes an oval form in front. On the contrary, the 

 depression for the cuneiform bone is smaller than in the 

 camel. Both the depressions are very deep. 



[For measurements, see F.A.S. Plate C, figs. 7, 8, & 9. — Ed.] 

 The Carpus is extremely like that of the buffalo, presenting 

 the same number of bones similarly shaped, and with the 

 same relative dimensions, except that they are a little higher. 

 The cuneiform also has its posterior surface, not vertical as 

 in the buffalo, but inclining downwards and backwards. The 

 articulating siu-face for the pisiform being on this surface, 

 inclines in a like manner. The pisiform has not "been found. 

 [See description of Plate C, figs. 9, 10, 11, 12, and 13, in 

 F.A.S.— Ed.] 



Metacarpus. — In proportion as we descend the bones of the 

 leg, the differences from the camel increase. The cannon 

 bone does not at all resemble that of the camel and approaches 

 nearer that of the buffalo. The relative proportion of its 

 length and breadth is intermediate between these two 

 animals ; in the buffalo the length being to the breadth as 

 4^ to 1, in the Sivatherium as 5 to 1, and in the camel 

 as 8| to 1. The anterior surface over its upper third pre- 

 sents a more prominent ridge than in the buffalo. The 

 posterior surface is more scooped out than in the buffalo. 

 The nutritive foramen is situated on this surface at exactly 

 the same spot as in the buffalo, viz. a little above the lower 

 end. This lower end is also the same as in buffalo. 

 [See description of Plate C, fig. 15, in F.A.S. — Ed,] 

 Femur. — The superior end seen in front resembles that of 

 the camel; it is flattened and without depression, but the 

 trochanter rises more upwards than in the camel. From 

 above, this extremity looks more like the buffalo's, on account 

 of the transverse length of the articulating head and the 



