the Corvidse and Paradiseidse. 55 



amples are so evidently only young males of P. galericulatus 

 that there could be no hesitation in deciding the point, even 

 if the indication of their sex had not been given by the col- 

 lector. In fact these five specimens present a complete gra- 

 duation of plumage from that of the female to the adult male. 

 It seems therefore very clear to my mind that there is only 

 one species of Platylophus, viz. P. galericulatus (Cuv.), of 

 which the so-called P. coronatus is the female, and P. arde- 

 siacus and P. malaccensis of Cabanis are males in immature 

 plumage. It will be noticed that among the specimens in 

 Mr. Sharpens possession there are no authenticated females of 

 either P. galericulatus or P. ardesiacus, nor any males of 

 P. coronatus, which, if there is only one species, would natu- 

 rally be the case. 



Among the specimens oi Cyanocorax in the Paris Museum 

 is one brought from the south of Sao Paulo, in Brazil, by M. 

 Auguste St.-Hilaire, which differs conspicuously from other 

 specimens in the colour of its plumage, and regarding which I 

 have not been able to find any description or notice. It is not 

 mentioned in Mr. Sharpens Catalogue of the Corvidse lately 

 published. The specimen appears to be most nearly allied 

 to C. ceeruleus, having the same general distribution of colours, 

 and is nearly of the same size. I propose to call it 



Cyanocorax inexpectatus. 



Head, throat, and breast blackish brown. Back, wings, 

 and tail verditer-blue. Inner webs of primaries dark brown. 

 Underparts greyish brown, with a shade of verditer in certain 

 lights. Bill, feet, and tarsus black. Total length 15| inches, 

 wing 8, tail 7\, tarsus If, bill on culmeu If. 



This bird, when placed by the side of C. ceeruleus, in the 

 colour of its plumage, bears the same relation to that species 

 as the Cyanocitta yucatanica does to the C. beecheyi, the ver- 

 diter-blue forming a strong contrast to the rich dark cobalt- 

 blue of C. caruleus. It is probably not in full plumage, as 

 there are indications that the underparts would be as bright a 

 verditer-blue as are the wings and back. I am indebted to 

 Prof. A. Milne-Edwards and M. Oustalet for facilities of in- 

 vestigating and describing this bird. 



