The pectoral trunk bifurcates into two main pectoral arteries (9), which penetrate _M. pectoralis thoracica_. Neither the axillary artery nor these pectoral arteries were traced in my study. The coracoid artery (2) arises from the ventral face of the subclavian (1), either opposite the base of, or medial to, the axillary artery (10). The coracoid artery passes ventrad between the medial edge of the coracoid and the ventral head of _M. subcoracoideus_, and an artery (7) is given off to supply that muscle. The main vessel then penetrates _M. supracoracoideus_ and bifurcates or ramifies into several vessels (12). Between the origin of the coracoid artery from the subclavian, and the point where the coracoid artery passes the medial edge of the coracoid, several branches are given off. These vessels are highly variable in origin, as described below, and not all were always found. Along with the coracoid artery, they are termed a "coracoid complex." The first artery (11) of this complex arises from any one of several places: from the lateral face of the coracoid artery at its base; independently from the subclavian immediately lateral to the origin of the coracoid artery; and from the thoracic artery near its origin. This vessel travels laterad, parallel to the subclavian, and penetrates _M. coracobrachialis posterior_ at the same point that the pectoral artery passes dorsal to that muscle. Another vessel (common stem of 4 and 5) of the coracoid complex in most specimens arises from the anterior face of the coracoid artery and branches into several vessels, some of which (5) supply _M. subcoracoideus_, and some of which (4) feed _M. coracobrachialis posterior_. The vessel occasionally shares a common stem with the main vessel (11) to _M. coracobrachialis posterior_, and in some specimens arises independently from the subclavian, immediately anterior to the origin of the coracoid artery. The branch (4) to _M. coracobrachialis posterior_ was also seen to arise independently from any of the above-mentioned positions.