1889. ] ANATOMY OF RHINOCEROS SUMATRENSIS. 13 
doing covered the muscles of the elbow-joint. The rest joined a 
large muscle from the chest. 
The muscle lay to its outer side and covered the whole humeral 
Fig. 4. 
Fore limb (anterior surface) of Rhinoceros sumatrensis. 
Ext. carp, rad. br., extensor carpi radialis brevior; S.l., supinator longus ; 
Ext. carp. uln., extensor carpi ulnaris; Ext. com. dig., extensor com- 
munis digitorum ; /x¢. carp. rad., extensor carpi radialis. 
region, not unlike the human deltoid. Its upper part was inserted 
into the external supra-condyloid ridge of the humerus, lying between 
the biceps and brachialis anticus. 
Biceps.—A fusiform muscle of large size. Arose by single tendon 
from coracoid process. ‘The tendon passed underneath the supra- 
spinatus, beneath the muscle from the chest, and was inserted into 
