BLOOD-VASCULAR SYSTEM OF THE LORICATI IRAE 
stomach to the apex; while the former (fig. 37; R.Gas.A.) 
crosses the corresponding vein and continues parallel with it 
along the right and dorsal side of the stomach to the apex. From 
the right gastric the posterior gall-bladder artery is given off to 
supply the posterior two thirds of the bladder, and a small branch 
is also given off to a gland-like body marked G. Intestinal 
artery,,, (fig. 37; Int.A.,,)) crosses over the right portal and con- 
tinues caudad to the right of intestinal vein,,). Directly in front 
of the spleen this artery divides into a dorsal and a ventral ves- 
sel. The dorsal artery (fig. 37, Int.A.(,,)) passes to the right 
of the spleen, gives off the splenzc artery (fig. 37; Spl.A.) to 
the spleen, and crossing the intestinal vessels,,, continues caudad 
along the posterior horn of the iliac loop; giving off numerous 
branches to the anterior horn and the posterior end of the in- 
testine, and finally terminates on the dorsal side of the rectum. 
The ventral branch (fig. 37; Int.A...,)) passes ventrad and to 
the left of the spleen. Opposite the spleen it sends off the 
posterior gastric artery (fig. 37; P.Gas.A.), which crosses the 
ceca behind the corresponding vein, and supplies the posterior 
or cardiac end of the stomach. The main ventral intestinal 
vessel continues along the lower side of the posterior end of 
the intestine and terminates on the ventral side of the rectum. 
Immediately after leaving the main trunk the celzac artery 
(fig. 37; Coe.A.) gives off the right hepatic artery (figs. 37 
and 38; R.Hep.A.), which after crossing the ceeliac and right 
portal sends off branches along the radicals of the right portal 
to the right lobe of the liver, and also gives off the anterzor 
gall-bladder artery, which supplies the anterior third of the 
bladder, and does not anastomose with the posterior gall- 
bladder artery. Passing beneath intestinal vessels,,, the cceliac 
artery gives off a rather large left hepatic artery (figs. 37 and 
38; L.Hep.A.), which follows along in front of the left portal, 
giving off numerous branches to the left lobe of the liver, which 
penetrate the liver with the large radicals of the common por- 
tal; while none of the branches of the left hepatic anastomose 
with similar branches of the right hepatic, several of them send 
up branches that supply the ventral portion of the stomach. 
Shortly after the branching off of the Jeft hepatic from the 
