82 
contains a beautiful pair of this Antelope obtained in exchange from the 
Museum at St. Petersburg, from which our figures representing both sexes 
(Plate LIII.) have been prepared by Mr. Smit. It will be observed at once 
that though in its general form and coloration this species is somewhat 
similar to G. picticaudata, the shape of its horns is quite different, and readily 
distinguishes this species from its allies. 
When at St. Petersburg in August 1897, Sclater had the opportunity of 
examining, under the kind guidance of Herr Biichner, the fine series of 
specimens of this Antelope in the Zoological Museum of the Imperial 
Academy of Sciences of that city. The specimens had been obtained in the 
region of the Koko Nor, in the most northern part of the Chinese province of 
Kan-su, and in Ordos, which is the country encompassed by the great northern 
bend of the River Hoang-Ho. In the southern part of this district Przewalski’s 
Gazelle was met with in great numbers during the Kan-su expedition already 
mentioned, and many specimens of it were obtained for the Imperial Museum 
at St. Petersburg. 
January, 1898. 
