QTJATERNAET FAUNA OF GIBEALTAE. 



97 



pital groove and ridges and the great tuberosity being lost. The part of the bone at 

 which they were attached is crushed into numerous fragments, probably by the fall 



Fig. 3. 



RJiinoceros megarhinus. 

 Fig. 4. 



BkinoKros Jceitloa. 



upon the bone of a heavy fragment of rock; the fragments, however, although much 

 displaced, are solidly united by red calcareous stalagmite. The shaft is also broken 

 across transversely about five inches below the summit of the articular head ; and the 

 two portions of the bone were found at a considerable distance apart. At the lower 

 end the shaft is fractured very irregularly ; but there is no appearance anywhere of the 

 bone having been gnawed by the Hyena. There is a small incised mark close to the 

 lower end ; but this appears to be quite recent. 



The fragment, as it is, is about 11 inches long; and the least circumference of the 

 shaft, at the point where it is usually smallest, is about 8"-7. The proximal articular 

 surface is very nearly entire. It measures about 4"-2 in the transverse, and about the 

 same in the antero-posterior direction i. The radius of its curve is 2"-0. 



The injured condition of the bone precludes the possibility of ascertaining very 

 precisely any of its characters. 



It may be remarked, however, in comparison with a humerus of B. hicornis [R. 

 ' In R. hicornis the antero-posterior measure is 4"-6, and the transverse 3"-9 or 4"-0. 



