478 MR. F, E. BEDDARD ON THE [ Nov. 28, 
parietes in line with the afferent renal veins that have just been 
described, and an inner series emerging from the body-wall close 
to the median dorsal line. Of the latter I observed only one 
vessel on each side of the body. Of the former there were two 
on the left side and one on the right. They collected blood, how- 
ever, from more than one intercostal space. On the left side a 
blood-vessel belonging to the same series runs from the parietes 
to the sperm-duct some way behind the testis and supra-renal. 
I did not observe one of these vessels on the right side. 
Résumé. 
It may be useful to state briefly the main facts in the circulatory 
system of this Lizard for purposes of an easier comparison with 
other forms. 
Arterial System. 
(1) The origin of the carotids from the carotid arch suggests 
the carotid “gland” of the Frog, inasmuch as the carotid trunk 
arises by several mouths from the carotid arch as it bends round 
to join the systemic arch. 
(2) As in some other Lizards, the pulmonary artery gives off 
a branch running along the trachea and supplying the thyroid 
body. This exists only on the right side. The artery is relatively 
small. 
(3) The subclavians are two slender vessels arising by a 
common trunk from the right aorta and give off two vertebrals, 
one arising from each. 
(4) The intercostals are quite regularly paired, and nowhere 
deficient or asymmetrical. They commence upon the right aorta 
before it joins the left. 
(5) The left aorta gives off several wsophageal branches. 
(6) There are seven esophageal arteries arising from the common 
aorta, of which the last three arise from the intercostal of the 
left side. 
(7) There are five gastric arteries anterior to the cceliac. 
(8) The liver is supplied with arterial blood from two sources. 
First by the usual Lacertilian hepatic artery, which is a branch of 
the celiac ; and secondly by a number of small trunks accompanying 
the gastro-hepatic vessels and arising from the gastric arteries. 
(9) The relative positions of the celiac, superior mesenteric, 
and cexcal arteries (as has been shown by Rathke and Hochstetter) 
differ. 
(10) The renal arteries are six or seven in number, arising in 
common with the intercostals and nearly regularly paired. The 
iliac arteries also give off a branch to the kidneys. 
Venous Systenv. 
(1) The anterior vena cava of the right side receives a branch 
