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-fig. 16. Text-fig, 17. 
Text-fig. 16.—EHumeces algeriensis. Ventral aspect of brain, showing chief arteries. 
ca. Carotids ; op. Optic nerves; opth. Ophthalmic arteries; 3, third nerves. 
Text-fig. 17.—Gerrhosaurus flavigularis. Ventral aspect of brain, showing chief 
arteries. Lettermg as in text-fig. 16. 
nerves. The order in which the remaining arteries of the brain 
arise 1s quite similar to that of the other Lizards described here, . 
and there are no particular comments to be made upon them. 
§ Brain of Tupimambis nigropunctatus. 
The most important branches arising on either side from the 
