1865.] MYOLOGY OF CERCOPITHECUS. 45 
The tensor vaginz femoris was strongly developed, but very closely 
united, at its origin, with the gluteus medius. 
The biceps femoris had but one origin, namely, from the outer 
side of the base of the ischium beneath the acetabulum. 
The rectus femoris and soleus had each also but a single origin, 
the latter arising from the head of the fibula. 
The tibialis anticus had its lower half divided into two distinct 
fleshy bellies, one giving off a tendon to the ento-cuneiform, the 
other sending one to be inserted into the tibial side of the ventral 
surface of the first metatarsal. 
The peroneus quinti digiti consisted of a very small fleshy belly, 
which arose from the middle of the external surface of the fibula 
(between the peroneus longus and the peroneus brevis) and soon 
gave rise to a very long and exceedingly slender tendon, which was 
closely applied to that of the peroneus brevis and, beyond the in- 
sertion of the latter, was continued along the upper and outer edge 
of the fifth metatarsal to be inserted into the extensor sheath of the 
fifth digit. 
Left foot. Right foot. 
a. Flexor longus hallucis. ec. Flexor accessorius. 
4. Flexor longus digitorum. d. Tendon of hallux. 
The flexor longus digitorum and the flexor longus hallucis were 
connected together by their tendons in a peculiar manner, but which 
differed slightly in the two feet. In both feet the tendon of the 
flexor longus digitorum bifurcated, one branch going to the second, 
the other to the fifth digit. The flexor longus hallucis divided into 
three strong tendons, destined for the hallux and for the third and 
