1922.] The Arterial System of Varanus bengalensis (Daud.). 7 
the arrangement of the several vessels in Varanus, but he does 
not indicate these visceral arteries and, so far as I have been 
able to ae they are not elsewhere desnccuad in Varanus 
in this w 
In alee origin of the mesenteric artery from the left sys- 

a.Q.- rn 
Fie. 3. 
The Origin (p. 0.) and Distribution of the Ligament and Mesenteric 
Artery in Varanus bengalensis. C. v., last cervical vertebra; 3; g’., gastric ; 
int., intestine; th, v. sg taneennrs Sertebens. Other letters as in Figs. ee 
temic artery, we find in Varanus a condition which resembles 
that of the higher Reptilia, and which a from that of 
other genera of Lacertilia, such as Heleilerin , Uromastiz and 
Hemidactylus, where all the visceral seeoried _ from the 
dorsal aorta after the union of the two systemic 
