ANATOMY OF THE PIG-FOOTED BANDICOOT. 69 



The Trapezius rises by one continuous origin from tl)e occipital 

 crest, ligamentum nuchge, and thoracic spines as far as the 11th ; 

 it is inserted partly into the cephalo-humeral, partly into the 

 acromial process and spine of the scapula. 



The Rhomboid also forms one continuous sheet rising from the 

 occipital crest, ligamentum nuchse, and anterior 6 thoracic spines ; 

 it is inserted into the vertebral border of the scapula. 



The Latissimus dorsi rises from the 11th, 12th, and 13th ribs, 

 the posterior -1 or 5 thoracic spines, and the lumbar fascia ; it 

 has the usual insertion into the surgical neck of the humerus. 



The Latissimo-olecranalis (dorso-epitrochlearis) rises as usual 

 from the latissimus dorsi and is inserted into the inner side of 

 the olecranon. 



The Sterna- scapularis rises from the manubrium, close to the 

 first rib and passes to the fascia over the supraspinatus ; there is 

 not even a fibrous intersection to mark the position of the 

 clavicle. 



Muscles of the Arm. 



Deltoid. — The clavicular fibres, of course, form part of the 

 cephalo-humeral. The acromial fibres are very scanty and, 

 contrary to the rule in mammals, are inserted higher than those 

 coming from the spine. The spinous portion is well developed, 

 and is inserted about the junction of the upper and middle 

 thirds of the humerus. 



The Scapular Muscles show nothing of special interest. (The 

 levator anguli scapulae and serratus magnus are included with 

 the trunk -muscles.) 



The Teres major rises from the third of the axillary border 

 nearest the angle, its insertion is entirely dorsal to that of the 

 latissimus dorsi. 



The Teres minor is very small and rises from the third of the 

 axillary border nearest the glenoid cavity. 



The Co7'aco-hraGhialis is entirely absent. 



The Biceps has only the long head, which passes as usual 

 through the capsule of the shoulder-joint. 



The Brachialis anticushsLS only the long head, which rises from 

 the back of the surgical neck of the humerus ; it is entirely 

 supplied by the musculo-cutaneous nerve. Owing to the 

 necessity for preserving the skeleton for mounting, I am not 

 quite certain as to the insertions of the last two muscles, but the 

 biceps seemed to go entirely to the radius. 



