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Show 444 MK. F. E. BEDDARD ON THE [Ma the suprarenal body became fused into a single trunk pouring its blood into the liver between the entrance of the dorsal parietal portal and of the vena cava posterior. In this specimen, moreover, the left posterior vertebral vein emerges from the parietes some way in front of the gonad, and, running superficially, forms an additional blood-supply to the suprarenal body. Tiliqua scincoides. Of this lizard I have dissected two individuals, both of them males ; in only one was the venous system injected. _ The most noteworthy character in the venous system of this lizard is the great disproportion between the right and left vena renalis revehens. As a rule there is an inequality in these vessels, the right being larger than the left. In the present species (text-fig. 93, p. 445) the left is so small that it seems to be on the verge of disappearance. I did not trace it in the injected specimen as far as the kidney. The right vein lies to the right side of the mesorectum, and the branch putting it into communication with the left vein can be seen to perforate that membrane; the branch is large ; it is only after receiving the veins from the left gonad that it dwindles and finally disappears. The right vena renalis revehens receives only one branch from the right testis. The anterior abdominal vein arises on each side much as in Iguana. There are, however, differences of detail. After the origin of the ischiadic vein from two roots it divides into the anterior abdominal and the vena renalis advehens ; the latter reaches the kidney much more anteriorly than in Iguana, and instead of running over the kidney superficially it buries itself in its substance well before reaching the inner border. The anterior abdominal vein receives two intercostals and one parietal vein on the outer side before becoming confluent with the posterior vertebral. A long vein from the bladder and also branches from the fat-bodies join the anterior abdominals before they unite to form the median trunk. At the point of junction a median vessel from the under surface of the pelvis joins the anterior abdominal; this is composed of a branch from each leg and a median backwardly-running branch. It is a curious fact that these vessels show an asymmetry precisely similar to that which I have observed in Varanus. In both lizards the vein to the right leg joins the median trunk anteriorly to that point at which the vein from the left leg joins it. Suprarenal Portal veins.-In one individual there were three of these veins to each suprarenal body ; in another specimen (text-fig. 93, p. 445) there were four on the right side and three on the left. The veins lie between the intercostal arteries and follow the ribs; they emerge from the parietes at a greater distance from the middle line than the arteries which enter the parietes. Intestinal Portal veins.-The portal vein is made up of seven affluent veins. The first is the gastric; next to this is a vessel |