23 



[Vol. xxi. 



which is a median triangular vclvcty-hlack spot, surrounded 

 by a glossy line. Feathers of the lower back, rump, and 

 shorter upper tail-coverts black, with narrow steel-ljlue 

 edges. Longer upper tail-coverts and tail-feathers black, 

 with white, more or less speckled, cross-bars. Quills black, 

 the primaries inclining to brownish-black, the secondaries 

 with white tips, and the innermost ones with long triangular 

 white spots at the extremity. Upper wing-coverts like the 

 feathers of the rump, a few with small white spots and the 

 greater series with broad white tips. Neck and breast like 

 the mantle. Abdomen, vent, thighs and under wing-coverts 

 dull black ; under tail-coverts similar, the longest ones being 

 tipped with white. Iris broccoli-brown, bill bluish-horn- 

 colour, feet greenish-brown. Culmeu 36 mm. ; wing 230 ; 

 tail 630 ; metatarsus 64. 



The adult female agreed with Mr. Ogilvie-Grant's de- 

 scription. 



One fully adult and three nearly adult male examples, as 

 well as seven females, had been received from Mt. Arizan in 

 Central Formosa. 



Mr. Rothschild said that this Pheasant had been originally 

 described by Mr. Ogilvie-Grant from two tail-feathers, and 

 had been placed in the genus Calophasis, Elliot, of which 

 C. ellioti was the type. When describing the adult male 

 Mr. Rothschild had examined the other species of the group 

 with a view to ascertaining the validity of the genus Calo- 

 phasis. The comparative difl'erences, as given by Mr. Gates, 

 were as follows : — 



Phasianus. 



MaU. Rump-feathers long aud 

 disintegrated. 



Tail-feathers 18. 



Ear-tufts present. 



Female. Tail long, pointed, and 

 narrow. 



Calophasis. 



Male. Rump-feathers short and 

 rounded. 



Tail-feathers 16. 



No ear-tufts. 



Female. Tail shorter, less pointed, 

 and much wider. 



Phasiarms ellioti, P. hum/ a, and P. h. hunaanicus certainly 

 possessed the distinctive characteristics of Calophasis, but 



