The Nervous System 141 



muscles and to the anterior part of the transversus 

 abdominis muscle; (c) the pcctoralis (19), a large 

 nerve leading to the muscle of that name; (d) 

 cutaneus pectoralis (18), fine branches from the 

 Xlth spinal nerve to the integument of the axilla 

 and the neighboring parts of the breast ; (e) coraco- 

 brachialis (22) to the like named muscle; (f) cutan- 

 eus brachii et antebrachii medialis (25 + .1.2) to 

 the medial side of the integument of the upper 

 and fore arm; (g) brachialis longus inferior (21), a 

 large nerve that supplies the biceps and humero- 

 antebrachialis inferior muscles, and then divides 

 into the medianus and ulnaris inferior nerves; (h) 

 subscapularis (29) to the like named muscle; (i) 

 scapido-humeralis profundus (36a) to the like 

 named muscle; (j) axillaris, a large stem that 

 divides into two main twigs that lead to the skin 

 of the lateral side of the upper arm, to the proximal 

 part of the forearm, to the humero-radialis muscle, 

 and to the deltoides coraco-sternalis muscle; (k) 

 dorsalis scapulae (posterior) (31) to the deltoideus 

 scapularis muscle; (1) teres major (29b), one 

 (alligator) or two (crocodile) middle-sized nerves 

 to the teres major muscle ; (m) latissimi dorsi (29b) 

 to the like named muscle; (n) brachialis longus 

 superior (radialis) (not shown in Figure 31) to the 

 extensor side of forearm and the hand. 



Of the spinal nerves between the brachial and 

 crural plexuses Bronn gives no description for the 

 Crocodilia. The most posterior nerve of the 



