1909. | ANATOMY OF CERTAIN UNGULATA. 7g) 
arises from the ulna and extends over the radius for a long 
distance towards the wrist. 
Finally, on the extensor side of the forearm is to be noted the 
extensor carpi ulnaris. 
On the flexor side of the forearm the following muscles are to 
be seen :-— 
The first of these, beginning at the lower border, is the flexor 
carpi ulnaris, which is exactly opposite to the extensor carp 
ulnaris, and arises from the olecranon as well as from the internal 
head of the humerus. Its insertion is parallel and contiguous to 
that of the extensor carpi radialis. 
The flexor sublimis digitorum arises from the internal head of 
the humerus and from the surface of and in common with one of 
the heads of the flexor profundus. It has only one fleshy belly, 
which ends in a single tendon. 
The flexor profundus digitorum is also, like the last muscle, 
rather different from the corresponding muscle in other Bovide. 
It has four heads. The first of them is the most superficial, and 
arises from the internal condyle of the humerus in common with 
the last muscle, beneath the flexor carpi ulnaris. Two heads of 
unequal importance arise deep of the last and also from the 
internal condyle. The fourth head is entirely ulnar in origin, in 
fact from the olecranon. Its tendon joins that of the two last 
described heads at about where they join each other. There is 
not any muscular palmaris longus that I could find, but a very 
strong tendon flattened in form and much stronger than any of 
the other tendons of the hand. 
The flexor carpi radialis presents no peculiarities. 
I could find no lumbricales. 
There were two short extensors between and below which runs 
the tendon of the extensor digitorum. 
Some of the muscles of the fore limb are illustrated in the 
accompanying figure (text-fig. 12), and include those in which 
Antilocapra certainly differs from other Ungulates according to 
the elaborate account given by Messrs. Parsons & Windle of the 
myology of that group. 
In the hind limb, the sheet of muscle and fascia which corre- 
sponds to the gluteus maximus, femoro-coccygeus, biceps, and 
tensor fascie femoris is attached, as in other Ungulates, to the 
fascia covering the knee and foreleg for about halfway down. Of 
this mass I have not been able to recognise all the elements 
mentioned above as distinct muscular sheets. The tensor fasciz 
arising from the ilium in front, is the most conspicuously 
separate. The others seem to me to form a continuous sheet of 
muscle, arising from the tuber ischii and the caudal and sacral 
vertebre in front. Three glut, besides the maximus, are easy 
to dissect and separate, and are all attached to the greater 
tuberosity of the femur, the gluteus medius to its free edge, and 
the other two in front and near to its origin from the femur. 
I have no particular remarks to offer with regard to the very 
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