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Show 1 8 MR. P. E. BEDDARD ON THE [May 3, It is a noteworthy fact about the liver of this lizard that a good many of the longitudinally running veins passing through it appear at intervals on its surface, instead of being covered throughout as is the general rule. The portal vein has the following affluents (see text-fig. 3, b, c, d, e, p. 13, & text-fig. 6, Spl.):-a gastric branch which really belongs to the anterior abdominal system and has been already referred to ; just posterior to the liver a splenic vein; behind this two veins near to each other, one of which is splenic, the other gastric; still more posteriorly a large vein which Text-fig. 6. Part of hepatic portal system of Pygopus lepidopus. Ao., aorta with chief visceral branches ; Gh., gall-bladder; L, liver; P, pancreas; P.v., portal vein; Spl., spleen supplied by one artery and two veins; V.c.i., vena cava. is formed of two branches, one of which is gastric, the other intestinal ; behind this again another vein from the small intestine joins the common trunk ; the last branch of importance is one from a dilated, almost globular, region of the small intestine. The main trunk then pursues a straight course along the rest of the gut. P h el sum a m a d a g a sc a r ie n s is . I have a few notes only to offer upon the vascular system of this Gecko, of which 1 have examined only a single male specimen. |