52 



MR. F. E. BEBDARU OX THE 



suggestion ; it is merely the assumption of the still further reduction, 

 of the jejunal region of the gut which is already greatly reduced 

 in such birds as Ghunga burmeisteri and Ilouhara macqioee^ii, where 

 it is already as short as oi- even shortei' than the ileic loop. There 

 is another argument in favour of this interpretation of the two 

 well-marked intestinal loops of Jihea which is derived from a 



Text-fig. 9. 



r «s^^ cae. 



Intestinal tract of Shea amevicann. 



Cce. Blind ends of caeca, d. Duodeiial loop. i. Ileic region, id. Ileo-duodenal 

 li<;araent. J. Jejunal region In this and the succeeding figures the definite 

 loops are marked bj' transverse lines. 



consideration of the Tinamou, Cryptiirns tataupa. In the last- 

 mentioned bird the intestin.--)! loops are very remarkable ; they 

 are represented in text-fig. 10. There is nothing in particular 

 to be said about the dttodenal loop. This is followed by two loops, 

 which lie one above the other, the proximal loop lying ventrally 



