| OCR Text |
Show .'!52 MR. P. E. BEDDARD ON THE [Feb. 16, fourth renal arteries, on the other hand, both give branches to the oviduct. I should add that in this kidney, as in the opposite one, there is a longitudinal system running along the ureter as well as along its inner border. In the male, the first renal artery arises just in front of the second spermatic artery and just beiow the inferior mesenteric; the second artery of the anterior kidney arises next. Then follows the first artery of the posterior kidney, which gives off a stout branch supplying (I think) the fat-body. Each kidney has in all five arteries. COROXELLA GETULA. The anterior vertebral artery is extensive in this species and does not plunge into the parietes until farther than halfway up the neck. Exactly at its point of origin from the aortic arch, where naturally an angle is formed-in fact, exactly bisecting the angle in its line of direction,-arises the first of the intercostal branches of the vertebral. The lymph-tube surrounding Text-fig. 70. Zamenis flag ellifor mis. Origin of right aorta and other arteries, to illustrate mode of enclosure within lymphatic sheath. L.Ao., left aorta; B.Ao., right aorta ; X, lymphatic vessel not containing an artery. the artery here dilates into a sac, which completely envelops the intercostal artery in question. The structure is rather different from that seen in an example of Zamenis flagelli-formis. In the latter there is a dilatation at the junction of the |
