INTESTINAL TEACT OF MAMMALS. 



473 



Sub-Order TYLOPODA. 



Family Camelidj:. Camelus dromedarius (fig. 20), Lama huanaco. 



A single glance at the figures will show the close similarity between the pattern in 



this sub-order and in the Traguloidea. There is no specialised duodenum in the Camel. 



Meckel's tract is simply a repetition of that iu Tragulus. The csecum is longer and 



relatively not so wide. The spiral coil is similar in position, but is very much longer, 



Fig. 20. 



Intestinal Tract of Camelvs dromedarius. 

 Lettering as in fig. 1!». 



coiled into several turns, and much flatter. In the undisturbed condition it lies folded 

 over Meckel's tract. The supra-Meckelian fold has precisely the same relations, lying 

 in the undisturbed condition very closely applied to the origin of the minor loops of 

 Meckel's tract. The rectal portion has a normal course. The blood-vessels show only 

 slight differences. The factor of the anterior mesenteric vein which drains the caecum 



