493 Dr. N. Scvortzov on some 



thoy are opaque bl(i<'k,\\\i\\ glossy green tii)s, Avliich are broadest 

 on tlie liead ; the njiper throat quite opaque lilack, Avithont any 

 glossy tips, while that of P. mongolicns is always dark pvu'ple 

 all over, with a slight eoppery gloss. 



Instead of the broad eompletely white collar (interrupted 

 on the throat) of P. mongoUcus, there are only a few white 

 tips on the green of the lowest side neck-feathers, showing 

 traces of a white collar; hence the name. 



The metallic gloss of all the chestnut feathers is uniformly 

 green on the whole body of this new Pheasant, while it is 

 partly green and partly purple in P. mongoUcus. 



The cubital and carpal wing- coverts have dingy blackish 

 centres, varied with fulvous Avhite, and broad, light silvery, 

 bluish-grey edges and tips, which arc almost alone visible 

 when the feathers are in order ; this is just the wing-colour 

 of more eastern Chinese Pheasants, such as P. torquatus, P. 

 decollatus, P. elegans, and very different from the uniform 

 silvery white, without any markings, of P. mongoUcus. 



These are the only differences; in other respects the two spe- 

 cies, P. mongoUcus and P. semitorguatus, a.re similarly coloured. 



Quills of this last : — the 1st almost spurious, half length 

 of the second, which =7th; 3rd, 4th, 5th about equal and 

 longest. 



A single male, in adult plumage, but not quite moulted, 

 and with a tail not full-grown, was shot at Kiytin, north-east 

 of Kuldja, a steppe locality with a rivulet and marshes, near 

 the northern foot of the Tian-shan, on the way from Kuldja 

 to Urumtsi. It was shot the 18th (30th) August, 1874, by 

 the Cossack Tchadov, a preparateur once taught by me, and 

 then employed in a surveying party by General Kolpakowsky, 

 Governor of Semiretchie. The measurements in the flesh, 

 noted by Tchadov, are, 31;^ inches length, 32 expanse, from 

 skin, tail 15^, wing 9"8. 



I am uncertain whether a female, with remains of nest-plu- 

 mage, shot by the same man about a week earlier, near Lake 

 Ebe-nor, belongs to this species or P. mongoUcus, being shot 

 at the very limit of the range of both. On superficial com- 

 parison it showed no difference whatever from the latter. Not 



