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. 
Humero-antebrachialis 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 Brachieus). Springs 
from the lateral flexor side of the humerus, from 
the distal efid 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. 1, dh) (Latissi- 
mus dorsi, Breiter Rtckenmuskel, Humero-dor- 
salis). It springs as an aponeurosis from the back 
at the level of the first four or five dorsal vertebrze, 
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. 
