292 RASORES. 



section] is an oval near to the head, becoming natter and broader down- 

 wards, the division having no muscles at its division 1 . 



The ovarium is a little round granulated body, placed at the root of 

 the mesenteiy, or the beg inni ng of the mesoreetum, upon a yellow body 

 which may be supposed to be the capsula renalis. Some of the ova 

 were whitish, while the others were black, which gave the whole a grey 

 colour 2 . 



This bird agrees very much with the pigeon. 



The Guan-Bird [Penelope cristata, Merrem] . 



This bird is about the bigness of a common pheasant, and in figure 

 and shape it is a good deal like that bird. It is black, but has some 

 white feathers upon its breast. 



Its head and bill are a good deal of the pheasant-kind ; it has some 

 long feathers upon the top of the head, like the silver cock. Its throat 

 has something like hair growing from it, but very thinly. This naked 

 part is red, and the skin is a little doubled, resembling the same part 

 of a turkey-hen . The legs are of a dark red, and the claws are some- 

 what longer and more bent than those belonging commonly to gramini- 

 vorous birds. They rather resemble those of a crow. 



The trachea, before it enters the breast, is doubled upon itself, lying 

 upon the lower end of the clavicle, almost as low as the anterior end of 

 the keel, rather upon the right side of the breastbone ; having a muscle 

 which arises from the lower point of that bone, and runs forwards along 

 the crista of the sternum on its right side, and is inserted into the bend 

 of the trachea. It is probable that the trachea is often brought more 

 into a straight direction by the turns or position of the head ; when so 

 altered this muscle will draw the trachea into its right position again. 



The oesophagus is very long, becoming larger and larger downwards, 

 but does not seem to terminate in a regular bag like a crop ; it becomes 

 contracted where it passes through the thorax, and then terminates in 

 the stomach, which is a continuation of the oesophagus, becoming, as it 

 were, larger and thicker in its coats. The strength of the stomach is 

 much like that of the peewit's : its tendinous part is but very small. 



The duodenum is pretty thick or wide, and its fold upon itself is but 

 short ; about 2 inches in length. In another which I examined it was 



1 [The sterno-thyroidei, after gaining the trachea to pass to the sternum, send off 

 a narrow slip on each side the trachea, to be inserted in the membrane between the 

 lowest tracheal ring and the first ring of the bronchia. There are a few fibres in the 

 same situation in other o lumbidce, showing an affinity to the Inse$sores.~\ 



2 [Hunt. Prep. Phys. Series, No. 2727.] 



