102 The Alligator and Its Allies 



rather weak muscle on the flexor side of the upper 

 arm. It arises by a fairly broad but thin tendon 

 from the outer surface of the coracoid immediately 

 before the coraco-brachialis. As a weak bundle 

 it passes between the lateral and median processes, 

 lying medially near the brachialis inferior muscle, 

 with which, at the end of the upper arm, it unites; 

 after their union the two muscles continue as a 

 broad tendon that splits into two parts, which are 

 inserted on the proximal end of the radius and of 

 the ulna. 



Huniero-antehracJiialis Inferior (Plate I., Figs. 

 2 and 6, hai) (Brachialis inferior. Caput breve m. 

 bicipitis, Kurzer Kopf des Biceps, Brachial interne, 

 Brachialis anticus, Erster vom Oberarm ausge- 

 hender Beuger, Portion of Brachiasus). Springs 

 from the lateral flexor side of the humerus, from 

 the distal end of the lateral process to the distal 

 end of the bone, except the epiphysis ; at the end of 

 the upper arm it unites with the biceps and with it 

 is inserted, by two tendons, to the radius and ulna. 



Dorso-humeralis (Plate I., Fig. i, dh) (Latissi- 

 mus dorsi, Breiter Ruckenmuskel, Humero-dor- 

 salis) . It springs as an aponeurosis from the back 

 at the level of the first four or five dorsal vertebrae, 

 and passes, with converging fibers, cephalo-ven- 

 trad to unite with the teres major muscle; in 

 common with the latter it extends along the exten- 

 sor surface of the humerus to be inserted between 

 the lateral and median processes. 



