262 MR. F, E, BEDDARD ON THE ANATOMY [June 6, 
patch of the gland on the dorsal side of the pyloric angle from 
which the splenic limb arises, and which is continuous beneath 
the end of the stomach with the main body of the pancreas. 
In Lacerta ocellata the splenic limb arises from the main lobe of 
the pancreas further towards the gall-bladder. In these points the 
Text-fig. 36. 
Pancreas of Lacerta ocellata (left-hand figure) and of Gerrhosaurus 
flavigularis (right-hand figure). 
P. Pancreas ; py. Commencement of intestine; spl. Spleen; S¢. Stomach. 
pancreas of Gerrhosaurus agrees with that of the Skinks, in which, 
however, there is a tendency towards an enlargement of the dorsal 
lobe of the pancreas and a disappearance of the splenic lobe. I 
could not detect the latter in MJacroscincus, and it was very thin 
in Tiliqua. 
Arterial System. 
As one of the two specimens of Gerrhosawrus flavigularis which 
T have dissected was successfully injected, I am able to give some 
account of the arterial system, dealing particularly with those 
points which vary among the families of Lacertilia. The heart 
has the usual, but not universal, tag tying the apex of the ventricle 
to the pericardium. The pericardium extends forward beyond the 
trifurcation of the arteria innominata. 
A pair of arteries exist of very fair size, running one on each 
side of the trachea in the position occupied by the carotids in 
many Vertebrates, and they are like them quite close to the 
trachea. These arteries have, however, nothing whatever to do 
with the carotids, They are branches of the pulmonary arteries 
(P, text-fig. 37), and the existence of these arteries in what 
appears to be an unexpected place is possibly indicative of a 
former forward extension of lung-tissue. 
The branches of the carotid arch differ slightly from those of 
