31 



terior orbitai process, forming part of tlie rim of the orbit ; and be- 

 fore the os ąuadratum there projects forwards and downwaids a pro- 

 cess of the temporal bone, analogous, 1 suspect, to the zygomatic 

 process J for the long bone stretching to the upper mandible from the 

 os ąuadratum, vvhich in the presentbird is remarkably slender, cannot 

 be called a true zygoma. Betvveen these two processes is the de- 

 pression for the temporal musele. The nostrils arelarge, vvide, ovoid, 

 and open. 



" In the lower jaw there is nothing remarkable. It may be ob- 

 served, hovvever, that a si it, or long foramen, marks the union of the 

 basai to the anterior portion of the bone, instead of a simple suture. 

 The coronoid process is very small. 



" The vertebrcB are short and stout, and resemble more those of a 

 Gallinaceous Bird than of a Crane; in fact, they differ little from those 

 oftlie crested Curassotv. Their number is as follows: 



Cervical 13 



Dorsal 7 



Sacral 12 apparently. 



Caudal 8 



But that a rib arises on each side from it, the lašt or 7th dorsal ver- 

 tebra is so completely consolidated to the sacrum that it cannot be 

 distinguished from that portion of the column j — this is also the case, 

 in the black-crested Curassow, with the lašt dorsal vertebra; and in the 

 Stanley Crane, with the lašt two. 



" The sternum difFers considerably in figure from that of the Stan- 

 ley Crane. For, independently of the absence of a channel in the an- 

 terior edge of the keel for the reception of the trachea, the keel is 

 neither so deep, nor is its anterior apex even in contact with the 

 point of the os furcatum, (there being a firm consolidation in the 

 Stanley Crane,) while its posterior edge is narrovv and prolonged as 

 in Gallinaceous Birds; whereas in the Stanley Crane it is broad and 

 sąuared. The totai length of the sternum is 44 inches : the greatest 

 depth of the keel l^. The keel does not arise abruptly from the body 

 of the sternum, but the latter merges gradually into ii. 



" The os furcatum is very slender and depressed towards the cora- 

 coid bones ; its figure is triangular, and the apex does not reach the 

 keel of the sternum by nearly half an inch. The Cariama is a bird of 

 feeble povvers of flight, very different from the Crane in this respect, 

 and exhibiting acorresponding modification of the osseous parts con- 

 nected with aėrial progression. 



" The ribs, seven in number on each side, are short and strong; the 

 first t\vo are falše : in the Stanley Crane I can only find one falše rib 

 on each side 5 while all the ręst are long, somewhat slender, and ex- 

 tend nearly 2 inches beyond the posterior margin of the sternum : 

 whereas in the Cariama, the posterior sternal apet extends beyond 



