100 MR. P. L. SCLATER ON [Feb. 2, 



In B. tora the whole face is of a uniform pale isabelline like the 

 body. 



In Bi cokii, of which there are fine examples in Mr. Holmwood's 

 collections, which I now exhibit, the whole front of the head is dark 

 rufous and the sides of the head pale fulvous. 



Thus B. swaynei differs from its two allies both in the structure 

 of its horns and in the colour of its face. 



It may be characterized as follows: — 



1. BuBALis SWAYNEI, sp. nov. (Plate V.) 

 Gapitefuscescenti-castaneo, facie nigra ; labiis et naso isabellinis ; 



cervice brunned nigra irroraid; mento nigricante ; auribus brun- 

 neis, intus pilis rufescenti-albis limhatis ; cornubus in piano 

 faciali late divergentibus, inde antrorsum leniter exsurgentibus, 

 apicibus ipsis retroversi.'s ; magnitudine B. caamse. 

 Hab, In terra Somalica. 



Besides the new Bubalis, Capt. Swayne's last collection contains 

 specimens of the following Antelopes : — 



2. Neotragus saltianus (De Blainv.) ; Thomas, P. Z. S. 1891, 

 p. 211. 



A skull and two skins of the male of this species, which is locally 

 known as the " Dik-dik " or " Sakaroo." 



3. Oreotragxjs saltator (Bodd.) ; Thomas, /. s. c. 



A flat skin of a female, and a skull and head-skin of a male of 

 this species, locally known as " Alikhud." 



4. Gazella pelzelni. Kohl; Thomas, /. c. 



A flat skin and a head-skin of this species, which Capt. Swayne 

 terms the " Low-country Gazelle " or " Dero " of the natives. 



I fear it was I that led Mr. Lort Phillips into the error of calling 

 this Gazelle " spekei " — a name which, as Mr. Thomas has shown, 

 belongs to the next species of the " High-country." 



There is now a fine mounted specimen of this Gazelle in the 

 British Museum and several skins. The present flat skin is 

 decidedly rather paler in colour than the mounted specimen in 

 the British Museum, but not otherwise different. 



.5. Gazella spekei, Blyth ; Thomas, op. cit. p. 210. 



Caf)t. Swayne sends a skull and head-skin of a female of this 

 Gazelle, which he calls the " Big-nosed Gazelle." The horns of 

 this example are particularly long and straight. 



There is now also a good mounted specimen of this Gazelle in 

 the British Museum, obtained from Herr Menges. Besides the 

 points of difference pointed out by Mr. Thomas, it may be noted 

 that the lateral stripe is much darker, nearly black in the present 

 species. 



6. Gazella scemmerringi (Cretschm.) ; Thomas, /. c. 



Three good skulls of males and five head-skins are iu the collection. 



