528 



Oz. Av. 



2. Trapezius (clavicular is), (Humeromastoideus), . . . . 0*77 

 Origin ; from the mastoid process and fascia covering the second 

 vertebra. 



Insertion; into the fascia of No. 1, covering the anterior portion of 

 the spine of the scapula, passing downwards (as external deltoid) into 

 the fascia covering the biceps, and finally inserted by common tendon 



with biceps into the forearm. 



3. Phomboideus, 0"31 



Including an accessory slip from the fourth cervical. 



4. Serratus magnus, 2*73 



5. Teres major, 0-23 



6. Latissimus dorsi, 0-43 



There is also a latissimus dorsi superficialis, part of the panniculus 

 carnosus, which extends from the border of the true led. dorsi et pecto- 

 ralis major, partly covering both these muscles, and is inserted into the 

 fascia of the back of the humerus, both on the inner and on the outer 



side, and into the elbow joint. 



7. Subscapular'^, 0*59 



8. Pectoralis minor, 0*82 



9. Pectoralis major, 0*51 



Inserted into the fascia binding down the biceps, and into the near end 

 of the ulna. 



10. Coracobrachial, 0*07 



11. Deltoideus externus, 0*13 



Lies under the liumeromastoid. 



12. Supraspinous, 1*72 



13. Infraspinatus, 1*34 



14. Teres minor, 0*09 



Arises from the middle of the lower border of the scapula, and is in- 

 serted into the fascia covering the outer head of the triceps. 



15. Infraspinatus secundus, 0*12 



This muscle is analogous to the glutceus quintus of the hind limb, 

 found in the Kangaroo. 



Origin; from the anterior third of the lower border of the scapula. 



Insertion ; into the greater tuberosity of the humerus, below the 

 tendon of the infraspinatus, to which it seems related, as the iliocapsu- 

 laris (gl. quartus) is to the gl. minimus. 



