546 



MR. F. K. BEDDARD ON THE 



[Nov. 18, 



the coracoid and from the coracoclavicular membrane ; its insertion 

 is not peculiar. 



9. The coracobrachialis externus arises from the sternal end of 

 the coracoid ; it has the usual insertion. 



10. The coracobrachialis internus is rather smaller ; it appears to 

 have the ordinary relations. 



11. The teres arises from nearly the whole of the ventral margin 

 of the scapula ; just before it narrows into the tendon of insertion, 

 it gives off a small tendinous slip which joins the anconeus longus 

 close to its origin : it is inserted into the inferior capitular fossa just 

 anterior to the origin of a portion of the triceps. 



12. The tensor patagii muscle (fig. 2) is formed of the combined 

 Irevis and longvs, which are not to be distinguished at their origin ; 

 it arises from the end of the clavicle and from a small portion of the 

 scapula; the outer portion, which corresponds to the tensor patagii 



Fig. 2. 



Muscles and tendon of patagium of Scopvs umhrctfa. 

 T.p.l, Tensor patagii longus ; T.p.hr, tensor patagii brevia. 



longvs (T.p.l.), receives a slip, chiefly tendinous, from the pector- 

 alis I. ; its tendon passes straight to the radial carpal bone, but about 

 the middle of its course gives off a branch which joins the outer of 

 the two tendons which form the tensor patagii Irevis. The tendon of 

 the tensor patagii brevis (T. p. br.) is double ; at the junction of the 

 belly of the muscle with the outer of the two tendons a small tendinous 

 slip is given off to the crest of the humerus ; the inner tendon receives 

 a slip from the pectoral at a corresponding spot. The outer tendon 



