46 



THE ANATOJiy OF HYLA C.^RULEA WHITE. 



The coracoids (Figs. 1 and 2, cor.) are stout bones, 

 expanded at the ends. They run posteriorly inward ^ 

 and their inner extremities are fused with the paired 

 cartilaginous epieoracoids (Fig. 1, ej:). cor.) The anterior 

 and posterior borders of each coracoid are concave. A 

 coracoid is divided into two regions, a proximal and a 

 distal, of which the latter is the larger and is fan-shaped 

 or dilated. The epieoracoids are flattened plates which 

 pass forwards and become continuous with the procoracoids 

 (Fig. 1, J>^' c^'')- The outer margin of each epicoracoid 



* epcor. 



■prse- 



Fig. 1 — -Ventral view of pectoral girdle (enlarged nearly twice). 

 Fig. 2 — ^Ventral view of scapula and suprascapula drawn stretched out 

 (X 2). 

 c. cornu at junction of coracoid and cpicoracoid ; cal. cartilaginous 

 portion of suprascapula ; cl. clavicle; cor. coracoid ; cor. /ew. coracoidal 

 fenestra ; ep. cor. ejiicoracoid ; g.c. glenoid cavity ; g.f., g. for. glenoid 

 foramen ; omos. omostemum ; as. ossified region of suprascapula ; 

 pr. cor. proeoracoid ; pr. sc. prescapular process ; r. transverse ridge 

 on xiphisternum ; sc. scapula ; s. sc. suprascapula ; zip. st^ 

 xiphisteinum. 



