4 ON A NEW FORM OF NORTH-EAST AFRICAN ANTELOPE. [Jan. 10, 



between Kohus defassa unctuosus S 'Wicl Kohus ellvpsvprymrms $ , 

 bred in the Society's Gardens. The period of* gestation of the 

 female was cavefully recorded by H. Mvinvo, the keeper in charge 

 of the Antelojjes, and proved to be nine months and ten days, 

 extending from January 14th to October 24th, 1903. The young 

 animal thei-efoi'e was not quite thi-ee months old at the time of 

 writing. In general coloui- it favoured the dam rathei- than the 

 sire, being decidedly less rufous in tint than the latter, although 

 not so grizzly black as the foi-mer. There was, howevei', pi-acticallj^ 

 no ti-ace of the white elliptical I'ump-mark so chai'acteristic of 

 A". eUipsipri/rmnts, which indicated I'eversion to the ancesti'al type 

 of coloui'. 



Mr. Oldfield Thomas, F.R.S., exhibited the skin and skull of a 

 Gazelle (text-fig. 2), which had been obtained by Mr. A. E. Butter 

 during his I'ecent expedition into North-east Afiica. 



Text-fig. 2. 



Sl<ull and liovns of G-azdla soemmerrlnqii hutteri, sul)sp. nov. 



The Gazelle was a membei' of the Gazella soemmerrhigii gi'oup, 

 but was distinguished extei-nally from true soemmerringii and 

 G. s. herherana by its smaller size, and the presence of a distinct 



