1871.] MYOLOGY OF THE KINKAIOU. 551 



inner border of the olecranon and fascia of the forearm. It receives 

 about its middle a large slip from the dorsal portion of the pannicu- 

 lus. The latter muscle is also intimately associated with the teres 

 major. 



The Paradoxurus typus and Dog have a similar arrangement. In 

 the Caracal the dorsal panniculus is not so differentiated as in the 

 preceding, and the Achselbogen is wanting. 



The triceps is large and exceedingly well-developed ; the only 

 point of note is that the representative of the anconeus is not seg- 

 mented from the inner factor of the triceps, though in other respects 

 disposed in the usual manner. 



The anconeus epitrochlearis is small in the Kinkajou and in the 

 Paradoxurus typus ; but in the Caracal it is larger and more elon- 

 gated. It arises in the latter from the ridge above the internal hu- 

 meral condyle in front of the epicondyloid foramen. It is only partly 

 inserted into the anconeal process, the remainder of its fibres being 

 continuous with the flexor carpi ulnaris. This muscle, in combina- 

 tion with the flexor carpi ulnaris, simulates on the inner side of the 

 humerus the supinator longus on the outside. 



The deltoid consists of the two factors the mesodeltoid and post- 

 deltoid, separated by an areolar interval. They present no remark- 

 able features worthy of description. 



The supraspinatus and infraspinatus have the usual arrangement. 



The teres minor is represented by an unsegmented portion of the 

 infraspinatus. 



The biceps arises by two heads — one the analogue of the so-called 

 long head of human anatomy, and the other the short head. Both 

 arise in conjunction from the base of the coracoid tubercle. The 

 long head is very large ; it passes through the capsular ligament of 

 the shoulder-joint, grooving the humerus. The short head consists 

 of a narrow elongated tendon, which occupies almost half of the entire 

 length of the muscle ; it runs parallel with the long factor (after the 

 latter has emerged from the bicipital canal) for some distance, then, 

 passing in front of it, terminates at its distal extremity by blending 

 with the anterior fibres of the long head. It is inserted into the 

 radial tubercle. The short factor of the biceps gives origin to two 

 varieties of the coraco-brachialis, viz. the short and the long. The 

 coraco-brachialis brevis is an inverted-wedge-shaped muscle ; it is 

 inserted into the inner border of the neck of the humerus immediately 

 above and extending somewhat behind the tendon of insertion of the 

 teres major. The coraco-brachialis longus is a slender, elongated, 

 wedge-shaped muscle ; it arises from the tendon of the short head 

 of the biceps, about half an inch below the preceding. The mus- 

 cular fibres gradually taper into a tendon which occupies half the 

 length of the entire muscle. It is inserted into the inner border of 

 the humerus, immediately above the epicondyloid foramen. 



This is a remarkable example of the coexistence of the long and 

 short varieties of the coraco-brachialis of Wood. The latter accurate 

 observer has placed on record several similar examples occurring in 

 the human subject. I have also found several similar specimens ; 



