No. 472] ANATOMY OF CRYPTOBRANCHUS 315 



into the fore leg. The third branch (P. Sc.) extends to the region 

 posterior to the scapula, and also probably, to the posterior bor- 

 der of the fore leg. The most posterior branch of the subclavian 

 (Epi.) runs in a posterior direction, and carries blood to the lat- 

 eral part of the body back of the anterior leg; it is called by Osawa 

 the epigastric. 



Some distance posterior to the subclavians is seen an unpaired 

 vessel (Gas.) which sends branches to the lesser curvature of the 

 stomach, and may be called the gastric. The next artery, which 

 may be called the coeliaco-mesenteric (C M.), is a rather large one, 

 and branches almost immediately into three parts. The most 

 anterior of these branches (Sp.) supplies the greater curvature of 

 the stomach, and also the spleen, and may be called the splenic. 

 The second branch of the coeliaco-mesenteric divides into three 

 smaller branches: a pancreatic (P.) supplying the pancreas; a 

 hepatic (Hep.) supplying the liver; and a third branch, the an- 

 terior mesenteric (.1. M.), which carries blood to the anterior third 

 of the small intestine. 



The most posterior of the three branches of the ( (rliaco-mesen- 

 teric artery is distributed to the small intt ^ine posterior to the 

 region supplied by the anterior mesentoiic; it is the first of several 

 vessels that sup])iy blood to the posterior two tliinU of the small 

 intestine, and that mio-lit be called accessory nieseiit(M-i< > .1''. -V.). 



one ju^t (lescril)tMl. and a fourth is formed as one of tiie two «livi- 

 sions of another unjiainMl branch of the dorsal aorta (Ac. M.). 

 There are tluis five of the so called accessor}' mesenteric arteries. 



The artery {P. M.), with which the most posterior of the ac- 

 cessory mesenteries unites to form a single vessel is the posterior 

 or inferior mesenteric and supplies blood to the anterior third of 

 the large intesdne. Five or six rather large, unpane.l arteries 



