166 MR. W. K. PARKER ON THE OSTEOLOGY 



arched and elevated than is usual, and even than in the Curassow '. With this latter 

 bird the Talegalla, however, agrees very closely in the structure of its whole pelvis, the 

 bones being in both very spongy and thick. In the Talegalla the "acetabulum" is 

 more in the middle than in Crax ; and the prefemoral part of the ilium is longer, nar- 

 rower, and steeper: the os pubis is also thicker. Moreover the "ossa innominata'' 

 are wholly coalesced with the sacrum in Crax, only in the anterior half in Gallus, whilst 

 they are wholly separate in Talegalla. Also in Talegalla and Crax the curious pre- 

 acetabular spur is much shorter than in the type. In the Apteryx the bones are still 

 more reptilian than in the Talegalla : in the former the cervical vertebrae are much the 

 strongest ; and the ribs and pelvic bones are coarse and flat, while in the Talegalla 

 they are coarse and thick. 



Remarks on the Viscera of Talegalla lathami. 



The digestive organs of Talegalla are extremely capacious ; the crop is very large, 

 and shaped like a simple mammalian stomach, such as that of Man or the Bat. The 

 proventriculus is long ; the gizzard strong, as in Gallus ; the duodenal fold very long, 

 and the intestines and ceeca both long and very capacious. The whole length from 

 the pharynx to the end of the cloaca is 68|^ inches, the length from the pharynx to 

 the gizzard being 12 inches. 



Measurements of parts, in inches and lines : — inches lines 



From pharynx to crop 4 



Average width of this part . . .... 8 



Length of crop 2 8 



Average width 1 3 



Length of a rather wide part, below the crop . . 8 



Width of the same 5 



Length of a narrow part, reaching to the infundi- 



bulum 1 6 



Width of ditto 3 



Length of infundibulum 2 2 



Width of infundibulum 8 



Longest axis of gizzard 2 



Shortest axis of gizzard 1 6 



Width of duodenum 5 



Width of ileum 4 



Length of one caecum 4 5 



Length of the other 4 2 



Average width of caeca 8 



' The arching of this part is just similar to what is seen so markedly in Brachypteryx, Paophia, and Bhino- 

 chetua ; and in other respects the pelvis approaches to what we see in those genera. 



