142 PROCEEDINGS OF THE ACADEMY OF [1888. 



Stylo-hyoid pursues its usual course transversely across the surface 

 of the digastric, to insert into fascia, just anterior to the basi-hyal 

 bone, being at that point over an inch in width. On the left side 

 there was inserted in common Avith it, a muscular slip about i in. 

 wide, which ran outward beneath the digastric and finally was seen 

 to rise in common with the latter ; this little band was not present 

 on the right side. 



Shoulder and Arm. Rhomboideus major and r. capitis are 

 united for half way up the neck; the former continues by fascia to 

 the region of the atlas. 



Cephalo-humeral as it proceeds towards the arm receives first the 

 slip from the sterno-mastoid and then the insertion of the cleido- 

 mastoid ; it shows at the latter point no tendinous intersection and 

 consequently the insertion of the muscle is the only indication of a 

 distinction between trapezial and deltoid elements. Further down 

 it blends with the pectoralis and scapular deltoid, and inserts on 

 the lower half of the humerus, without showing any tendency to fuse 

 with the brachialis anticus. 



Aero mio-tr ache lien, inserting on the metacromion, rises not only 

 from the transverse process of the atlas, but also by a separate belly 

 IJ in. long from the rectus anticus major. 



Teres minor was stated by Professor Shepherd^ to be indistin- 

 guishable from the infra-sjiinatus in his specimen of the American 

 black bear. In the present subject this muscle was quite distinct, 

 running more than half way back on the axillary border of the 

 scapula ; it inserted into the centre of the outer side of the great 

 tuberosity, while the infra-spinatus ran about an an inch further on. 

 I also found the muscle distinct in a young black bear, which I had 

 the opportunity of examining. 



The common tendon of teres major and latissimus dorsi shows very 

 clearly up to its insertion the distinction between the two elements 

 composing it. 



Pectoralis. At first sight the superficial aspect of the pectoral 

 seems to be formed by one unbroken muscular mass (pectoralis major) 

 which rises along the entire length of the sternum, a distance of 13 

 inches, and behind this for several inches on the abdomen, where its 

 inner border diverges somewhat from the middle line. From this 

 extensive origin, its fibres converge toward the middle of the hu- 



1 Myology of ihe American Black Bear. Jour. Anat. and Phys. Vol. XVIII, 

 p. 108. 



