1865. ] MYOLOGY OF HYRAX CAPENSIS. 339 
gin of scapula, but not from the cartilage. In common with part of 
the latissimus dorsi and part of the panniculus carnosus, it is inserted 
into margin of bicipital groove, while it is also overlapped by the 
coraco-brachialis (fig. 5, 7'. maj.). 
View of the outside of the fore limb. 
S.m. Serratus magnus. R. ec. Rhomboideus capitis. 8.sp. Supra-spinatus. J. sp. 
Infra-spinatus. D. Deltoid. 7. maj. Teres major. D.e. Dorso-epitrochlear. 
T. 1. First head of triceps. 7.2. Second head of triceps. 7.4. Fourth head 
of the triceps. B.a, Brachialis anticus. S. Z. Supinator longus. £. 2. d. 
Extensor longus digitorum. £. m. d. Extensor minimi digiti. 
The teres minor is very small. It arises from the lower or poste- 
rior border of scapula, the whole length of its neck, but very little 
more. The insertion is into the great tuberosity of the humerus, 
beneath and behind the infra-spinatus. It is in intimate union with 
the scapular head of the triceps. 
The diceps is single-headed, arising only from the scapula. It is 
inserted into the neck of the ulna in common with the cephalo-humeral, 
after passing round the inner side of the neck of the radius, where it 
has a strong tendon (fig. 4, B.). We thus agree with Meckel* as 
to its single head and insertion into the ulna. In the Guinea-pig we 
found it also to have but one head. 
The brachialis anticus arises by a single and very strong head 
from the back of the neck of the humerus, and turns round to the 
front of the bone, descending into the forearm to be inserted into the 
ulna (fig. 5, B.a.). In its very high origin this muscle resembles 
* Loc. cit. p. 286. 
