1881 .] 
[Kingsley. 
1 
1 I O 
The triceps femoris, as will be seen from the foregoing is repre- 
sented by but two of its three normal branches, the vastus 
externus and vastus interims , the rectus anticus not being found. 
The rectus interims occupies its usual position, being almost 
wholly on the upper inner surface of the leg. It is next to the 
largest muscle, being of proportionately larger size than in the 
normal member. It arises from the false symphysis of the left 
side, passes down the leg, becoming distally tendinous, and is 
inserted in the aponeurosis on the front of the crural bone in the 
usual manner. The vastus externus is smaller and arises from 
the lower portion of the false symphysis and remains distinct 
from its fellow for about two-tliirds of its length. 
The rectus interims major is the largest muscle in the leg, and 
is visible from both the outer and inner surfaces. It arises from 
the false symphysis in the same manner in which the same muscle 
in the normal leg arises from the symphysis pubis and is inserted 
on the inner surface of the knee joint. 
The semitendinosus closely resembles its liomologue in the 
perfect leg. It arises, as usual, by two heads which originate one 
on each side of the head of the femur from the margin of the ace- 
tabulum of the fifth leg, the two heads being connected by a thin 
aponeurosis through which the head of the femur is visible ; 
passing down the leg it becomes triangular in section and is 
inserted beside the rectus interims major. The fifth muscle, which 
I regard as the obturatorius , is situated on the upper inner surface 
of the leg next to its union with the left leg ; it extends from the 
inner or lower margin of the vastus interims to the corresponding 
margin of the vastus externus. Its origin and insertion I was not 
able to make out satisfactorily. 
In the crural region a much more normal condition of affairs is 
found. Here only one muscle (and this is a small one) is absent ; 
I could find no trace of the extensor cruris brevis. The other 
muscles had the ordinary origin and insertion, and differed only 
in their smaller size. The foot seems in every way to be perfect. 
From the foregoing it will be seen that the proximal portion of 
the leg is far less perfect than the distal. In the viscera I found 
no anomalies. I wished to trace out the arterial and nervous dis- 
tribution but was deterred as such a proceeding would greatly 
injure the specimen. 
