REPTILIA 



565 



caecal valve, narrows the aperture between the ileum and the large 

 intestine. The large intestine can be traced from the right side 

 of the body downward and medially to a point where it passes out 

 of sight beneath the pelvis to enter the cloaca. There is a very small 



Aorta 



■Pulmonary artery 



Liver 



Qall bladder 



Duodenum , 



Pancreas — 



Ileum— f^^- 



Large intestine --^^ 



0^/ary 



- -Adipose body 

 Oviduct 



— Cloaca 



Fig. 296. — Dissection of a horned lizard to show internal organs, ventral view. 



blind pouch or cecu7n, if any, at the position of the ileocaecal valve, 

 where the ileum joins the large intestine. Posteriorly the large in- 

 testine becomes the rectum before entering the cloaca which is di- 



