116 CLASS AVRS. 



yellow cere which covers the base of the bill. The total 

 measure of the bird is three feet, the bill is one inch and 

 ten lines, and the tarsus four inches and three lines. For 

 colours, see text. 



The young have but a very small protuberance, where the 

 globular tubercle is destined to be formed. 



An individual of this species has been coupled with female 

 mules of the Craw Rubra (Red Curassow). From this alli- 

 ance were produced two young ones, black, slightly tinted 

 with brown, having a tuft radiated with black and white. 

 The abdomen was reddish ; the tail black, terminated with 

 white. All the rest of the plumage was divided by fine 

 transverse bands of white. The base of the bill was without 

 a tubercle, and the temples were garnished with feathers. 



The Red Curassow (Crax Rubra) has been mistaken by 

 naturalists in consequence of observations made on mules of 

 the Mitouporanga. This species, however, which is called 

 Coxolitli by the native Indians, is as clearly distinct as the 

 last two. Its individuals, in a state of freedom, reproduce the 

 same colours in their plumage, and constantly exhibit the 

 same disparities, which distinguish them from the crested and 

 the globose curassows. 



The differences of colour will be observed in the text. 

 The Red Curassow differs from the globose in the absence 

 of the globular tubercle, and from the Crested or Mitoupo- 

 ranga, in having the region of the eyes furnished with 

 feathers. It is not improbable also that it differs from both 

 respecting the sinuosities of the trachea, though that subject 

 does not appear to have been yet sufficiently investigated. 

 In two females dissected by M. Temminck, the conduit did 

 not form any turns ; it went in a direct line into the cavity of 

 the thorax.. The rings of the trachea were entire, and very 

 distant one from the other, as in the Craw Pauwi. 



The flesh of the Red Curassow is white, very succulent. 



