ALIMENTARY TRACT OF CERTAIX BIRDS. 05 



account by Dr. Mitcliell in relation to the object of the present 

 paper. The duodenal lobe of the example of Struthio molybclo- 

 phanes has a lateral branch, as has the species examined by 

 Dr. Mitchell. The pancreas extends down the duodenal loop to a 

 point rather beyond this lateral diverticulum of the duodenal lobe. 

 It does not, however, by a long way reach the end of the loop. It 

 does, however, in Apteryx. The attachment of the ileum to the 

 duodenal lobe is rather more marked than in Gallinaceous birds 

 and much more marked than in Apteryx. The ligamentum ileo- 

 duodenale reaches along the duodenal loop to a point beyond the 

 posterior termination of the pancreas in that loop. I found no 

 fixed loops eitliei' in the moderately long small intestine or in the 

 longer colon. 



Text-%. 11. 



Intestinal tract of Talegalla lathami. 

 P. Pancreas. Other lettering as in text-fio'. 9. 



The Gallinaceous birds appear to be very uniform in the 

 structure of the gut. 1 may take Crax carunculata as a type 

 with which the very slight divergences shown by other Galli 

 may be compared : the duodenal loop is long and very thick and 

 the pancreas extends about halfway down it. The duodenum 

 soon narrows to form the jejunal region, which is of considerable 

 length and arranged in loose folds which can be straightened 

 out and among which are no fixed loops. There is no sharp line 

 of demarcation between the jejunal and the ileic region, which 



