1905. ] ON THE BRAIN OF LIZARDS. 267 
has already been noted. The epigastric springs from the anterior 
abdominal some way behind the liver (text-fig. 34, Hp., p. 259), and 
running 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. These 
vary in number in what appears to me to be a remarkable way. 
In one specimen repeated examination has only enabled me 
to ascertain the presence of a single ventral parieto-hepatic 
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 dorsal parieto-hepatic veins. These differed in the two 
specimens which IJ 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 parieto-hepatic 
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 
anteriorly 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 intercostal artery and disappears 
from view to the inside of the next intercostal artery in front; it 
resembles a large superficially running intercostal vein. Besides 
this there are three other dorsal parieto-hepatic veins lying 
behind it. In the second specimen, with numerous ventral 
pavieto-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 gastro-hepatiec portal, which was anterior 
in position. 
6. On two Points in the Anatomy of the Lacertilian Brain. 
By F. E. Bepparp, F.R.S., Prosector to the Society. 
[Received May 17, 1905. ] 
(Text-figures 39 & 40.) 
(1) Note on the Cerebellum in Varanus exanthematicus. 
In the account of the Lacertilia in Bronn’s ‘Thierreichs’ * the 
following statement is made concerning the cerebellum of 
Varanus :— Das Cerebellum oder das Hinterhirn ist gewohnlich 
ein unpaarer, diner, steil und hoch aufsteigender Korper, der 
seitlich mit der Medulla oblongata fest zusammenhaingt. Bei 
* Bd. vi. p. 714. 
