56 



A MONOGRAPH OF THE PHEASANTS 



Five full species and one subspecies of Polyplectron are recognized in this 

 monograph : 



Grey Peacock Pheasant 

 Germain's Peacock Pheasant 

 Malay Peacock Pheasant . 

 Hainan Peacock Pheasant 

 Borneo Peacock Pheasant . 

 Palawan Peacock Pheasant 



Polyplectron bicalcaratum bicalcaratum (Linn^). 

 Polyplectron bicalcaratum germaini Elliot. 

 Polyplectron malaccensis (Scop). 

 Polyplectron katsumatae Rothschild. 

 Polyplectron schleiermacheri Briiggemann. 

 Polyplectron napoleonis Lesson. 



KEY TO THE FORMS OF POLYPLECTRON 



I. Mantle and wing-coverts with metallic tips or ocelli (males) 

 a Ventral plumage brown, speckled with pale buff. 

 a' Larger, with ocelli chiefly violet and purple. 

 a" Outer tail-feathers with ocelli on both webs. 



c? General colour mottled grey 



b"^ General colour, dark blackish grey ..... 

 b" Outer tail-feathers without ocelli on the inner web 



b' Smaller, with ocelli chiefly greenish 



b Ventral plumage black, sometimes minutely dotted. 



c' Mantle and wings with distinct ocelli 



d' Mantle and wings solid metallic blue and green 

 1 1. Mantle and wing-coverts lacking, or with rudimentary, ocelli (females), 

 a Outer tail-feathers with metallic ocelli on both webs. 



a' Larger, with lighter coloured plumage, elsewhere than Hainan. 

 a" Mantle and greater tail-coverts without metallic ocelli . 

 b" Mantle and greater tail-coverts with metallic ocelli 

 b' Smaller, with darker plumage, on Hainan only, 

 b Outer tail-feathers with metallic ocelli only on outer web. 

 c' Greater tail-coverts with metallic ocelli . . . 

 d' Greater tail-coverts without metallic ocelli. 



c" Head without noticeable crest 



d" Head with very long, thin-vaned crest . . . . . 



bicalcaratum bicalcaratum. 

 bicalcaratum germaini. 

 malaccensis. 

 katsumatae. 



schleiermacheri. 

 napoleonis. 



bicalcaratum bicalcaratum. 

 bicalcaratum germaini. 

 katsumatae 



malaccensis . 



schleiermacheri. 

 napoleonis. 



