1905.] ON THE BRAIN OP LIZARDS. 267 



has already been noted. The epigastric springs from the anterior 

 abdominal some way behind the liver (text-fig. 34, Ep., p. 259), and 

 rvmning along the umbilical ligament disappears in the substance 

 of the liver some way behind the anterior end. It is reinforced 

 by the usual branches from the median ventral parietes. Tliese 

 vary in number in what appeal's to me to be a remarkable way. 

 In one specimen repeated examination has only enabled me 

 to ascei-tain the presence of a single ventral j)<^(''''i^to-hejxitic 

 vessel, which joins the epigastric at about the middle of the liver. 

 In a second specimen, on the other hand, there were four of 

 these ventral parieto-hepatic vessels (cf. text-figs. 33 and 34, 

 p. 259). I am disposed to think that the fluctuation in number 

 of these blood-vessels is related to fluctuation in the number and 

 size of the doi'sal parieto-hepatic veins. These diftered in the two 

 specimens which I have dissected, though not quite to so great an 

 extent as the ventral parieto-hepatic veins. In the specimen with 

 but one ventral parieto-hepatic vein, the dorsal jxirieto-hejKdiG 

 veins were as follows: — a large vein accompanies the anterior edge 

 of a fold of membrane which in this, as in many lizards, runs 

 obliquely and binds the end of the right lobe of the liver to the 

 parietes. This vein runs superficially for a short distance 

 anterioi-ly alongside the aorta on the right side, and is clearly a 

 fragment of the right posterior cardinal. It reaches the parietes 

 on a level with and outside of one intei'costal artery and disappears 

 fi'om view to the inside of the next intercostal artery in front ; it 

 resembles a large superficially running intei-costal vein. Besides 

 this there are three other dorsal parieto-hepatic veins lying 

 behind it. In the second specimen, with numerous ventral 

 pai'ieto-hepatic veins, I could find only three dorsal ones ; and the 

 first of these was by no means so large as in the first described 

 individual. 



I could find only one (jastro-lwpatic portal^ which was anterior 

 in position. 



6. On two Points in the Anatomy of the Lacertilian Brain. 

 By F. E. Beddard, F.R.S., Prosector to the Society. 



[Received May 17, 1905.] 



(Text-figures 39 & 40.) 



(1) Note on the Cerehellmn in Vamnus exanthematicus. 



In the account of the Lacei-tilia in Bronn's ' Thierreichs ' * the 

 following statement is made concerning the cerebellum of 

 Varamts : — *' Das Cerebellum oder das Hinterhirn ist gewohnlich 

 ein unpaarer, diinner, steil und hoch aufsteigender Korper, der 

 seitlich mit der Medulla oblongata fest zusammenhiingt. Bei 



* Ed. \'i. p. 714. 



