62 



MR. F. E. BEDDARD ON THE ENCEPHALIC [May 16, 



cerebellar arteries, which latter, as in other Lizards, are smaller 

 than the posterior pair. The place at which the carotids join 

 the circle of Willis is only just behind the third pair of cerebral 



Text-fi^-. 16. 



Text-fio-, 17 



lopdx 



ca • 



Text-fig. 16. — JSwi/eces algeriensis. Ventral aspect of brain, sliowing chief arteries. 

 ca. Carotids ; op. Optic nerves; opth. Oplitlialmic arteries; 3, third nerves. 



Text-fig. 17. — Gerrhosaurus flavigularis. Ventral aspect of brain, showing chief 

 arteries. Lettering as in text-fig. 16, 



nerves. The oider in which the remaining arteries of the brain 

 arise is quite similar to that of the othei- Lizaixls described hei-e, 

 and there are no particular comments to be made upon them. 



§ Brain q/" Tupinambis nig-ropunctatus. 

 The most im^iortant branches arising on either side from the 



