the Corvidae 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 of 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. Sharpe'’s Catalogue of the Corvidae lately 
published. The specimen appears to be most nearly allied 
to C. cceruleus, 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 verditerin certain 
lights. Bill, feet, and tarsus black. Total length 15 J inches, 
wing 8, tail 7^, tarsus If, bill on culmen If. 
This bird, when placed by the side of C. cceruleus, in the 
colour of its plumage, bears the same relation to that species 
as the Cyanocitta yucatanica does to the C. heeclieyi, the ver¬ 
diter-blue forming a strong contrast to the rich dark cobalt- 
blue of C. cceruleus. 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. 
