180 MR. F. E. BEDDARD ON THE [ Feb. 16, 
wide gracilis, the narrow sartorius, and the semitendimosus and 
semimembranosus, except that the semitendinosus has only one 
head from the tuber ischii. I am unable to identify with 
certainty a presemimembranosus. The muscle which I term here 
semimembranosus is one muscle arising from the tuber ischu and 
covering over the adductor which lies deep of it. It is double 
nowhere along its course, and is inserted along a semicircular 
line from the end of the femur to the beginning of the tibia, 
covering over the origin of the gastrocnemius. There is no 
separation at the insertion into two muscles, nor is there any 
rounded tendon, the insertion being mainly muscular. ‘There is, 
however, some connection just at the insertion into the extremity 
of the adductor and also with the head of the gastrocnemus. In 
any case there is nothing like the separation of two fleshy bellies 
such as are figured by Messrs. Windle & Parsons*. 
With regard to the quadriceps femoris, I have only to observe 
that the vastus internus is much smaller than the vastus externus. 
The pyrifornis was perfectly distinct from the entogluteus. 
The tibialis anticus has but one head of origin, and that is a 
long flat tendon arising from the external condyle of the femur 
and passing over the knee in front to form a fleshy belly which 
ends in a long tendon fanning out at its insertion. A muscle 
corresponding to the second (tibial) head also exists which ends 
in a tendon which perforates the tendon of the last and is 
attached considerably below it, 7.e¢., nearer to the ventral side of 
the foot. 
The extensor longus digitorum seems to me to arise only from the 
fascia between the muscle itself and the femoral head of the tibialis. 
Besides the tendon of this muscle another tendon runs along the 
anterior face of the metatarsus. The two tendons of the extensor 
longus are separate before the ankle, although they run along 
the metatarsus closely bound together. The third tendon I refer 
to the peroneus quarti digiti. The peroneus longus is also 
present. No other peroneals were found. 
I have also dissected the gastrocnemius and soleus, and find 
them to be as in the Bovide. That is to say, that the small and 
fleshy soleus arises from the head of the fibula and joins the 
outer head of the gastrocnemius. 
The plantaris is remarkable for a relationship to the gastro- 
cnemius not commented upon by Messrs. Parsons and Windle. 
Tn one specimen that I dissected, there is an intimate connection 
between the plantaris and the outer head of the gastrocnemius 
shortly after their origm. Some of the fibres of the gastro- 
cnemius arise from the fascia separating it from the plantaris. In 
fact, the two muscles cannot here be separated by dissection. 
In the other specimen there was also a connection between the 
two muscles but rather different in its kind. A slender tendon 
* Loe. cit. fig. 26, p. 274, S.M. and P.S.M. 
