HIND-LIMB. 157 



is not separate from the adductor magnus, although it 

 may possibly be represented by the slender round tendon 

 that continues from the distal limit of the insertion of the 

 adductor magnus to the supracondyloid ridge. The soleus 

 rises by a round tendon from a very small area of the fibula 

 (the origin is far more extensive in other Anthropoids) and 

 is fleshy to the heel. Plantaris and accessorius are absent. 

 0. C. 64 ML 



C. 234. Superficial muscles of the right hind-limb of an Orang- 

 Outang (Simla satyrus). This Anthropoid exhibits but 

 little agility while in captivity, and is seldom observed 

 to go on all fours after the manner of quadrupeds, or the 

 inferior Apes, but in using its long arms in progressive 

 motion on the ground, it supports itself on the bent fingers 

 as on a pair of crutches and swings the body forward 

 between them. The diminutive hind limbs, with their long 

 hook-like digits and greatly reduced halluces, appear to 

 be especially destined for the actions of grasping and 

 climbing, and are by no means calculated to support the 

 body erect, although capable of doing so for a short time. 

 There is no tensor fasciae latse. The femoro-coccygeus 

 is separate from the gluteus maximus ; it rises in common 

 with the ischial head of the biceps, and is inserted as usual 

 upon the femur superficial to the origin of the femoral 

 head of the biceps. This partial fusion of the femoro- 

 coccygeus with the biceps is interesting, in comparison on 

 the one hand with the Baboon and Macaque (C. 227 & 228) 

 in which the two are entirely confluent, and on the other 

 hand with the rest of the Anthropoids in which the femoro- 

 coccygeus is united to the gluteus maximus. The two heads 

 of the biceps have a slight muscular connection close to 

 their insertion. The pectineus is in part continuous with 

 the adductor longus. 0. C. 64 M e. 



Presented by C. Dent, Esq. 



C. 235. Left hind-limb of an Orang-Outang (Simla satyrus} 

 showing the deeper muscles. The prse-semimembranosus 

 is not separate. The flexor fibularis (flex. long, hallucis) 

 has a strong condylar origin. A larger part of the flexor 



