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of the leg. It is quite conspicuous on a superficial dissec- 

 tion, at its dermal end, lying above the insertion of the 

 Dernio Flexor Antebrachii. 



The muscle is fanshaped and has the wider part at its 

 dermal origin. It is inserted into the greater tuberosity 

 of the humerus above the insertion of the Pectoralis 

 Major. The width of this muscle is 15"™. 



M. Dermo Brachialis Posterior. 



This muscle is smaller than the former, and arises lower 

 down, on the under side of the Panniculus Caruosus. It 

 has the same insertion as the Dermo Brachialis Anterior. 

 The width of this muscle is about 10"™. The insertions 

 of both these muscles are tendinous. Their function may 

 be the same as that of the Latissimus Dorsi, or perhaps 

 they may help in the flexion of the fore-leg. 



In addition to these two larger dermal muscles, which I 

 have called Dermo Brachialis Anterior and Posterior, 

 there are others situated very near them well marked, and 

 two in number, with an origin from the Panniculus Car- 

 nosus and an insertion, with the common insertion of the 

 Panniculus Carnosus, into the fore-leg. These lie just 

 below and behind the Dermo Brachialis Posterior. 



The extensors of the fore-leg, opponents of the Dermo 

 Flexor Antebrachii, are Dermo Extensor Brachialis Inti- 

 mus, Inferior, and Superior. These three muscles lie one 

 above the other. They arise from the sides of the neck, 

 along the inner surface of the Panniculus Carnosus, and 

 extending downward, are inserted along the ulna, the 

 bones of the wrist and the Panniculus which covers them. 

 These muscles are all of about the same size, 10'"'". wide 

 and 100""". long. The lowest is the longest; its fan- 

 shaped insertion into the Panniculus, extends under the 

 Dermo Dorsi Cervicalis, and much hiiiher than the others 



