VASCULAR SYSTEM. 



207 



two subclavian arteries, and on tlie right side the large coeliac 

 artery (r). The hyoidean artery [vh] is a continuation of the 

 ventral end of the efferent vessel of the first branchial arch on to 



i- « .. . 



the hyoid, up which it runs i,i a dorsal direction to supply the 

 pseudobranch (/i). The efferent vessel of the pseudobLch 



