THREE APBICAUr MAMMALS. 961 



The type of the new race of Klipspringer will be the aforesaid 

 skull, which Dr. Porteus has kindly pi^esented to the British 

 Museum. 



I know of no Antelope with a distribution identical with that 

 of the Klipspringer, as now extended. 



About a fortnight after describing this skull I received a letter, 

 dated Naragata, aSTorthern Nigeria, from Mr. M. P. Hyatt, 

 informing me that he had recently killed three Klipspringers — 

 an adult buck and two does — in that part of the country. 



III. An Algerian Gazelle (Gazella hayi). 



Lydekker, Abstract P. Z. S. 1911, p. 38 (June 20). 



At the close of 1909, Mr. M. V. Hay presented to the British 

 Museum the skin and skull of an adult male Gazelle, shot by 

 himself in Algeria between Constantine and Biskra, and sup- 

 posed to be a. Dorcas {Gazella doi'cas). In due course the specimen 

 was set up, and placed on exhibition as a repi-esentative of that 

 species. Recently, however, as already mentioned in the Field 

 newspaper *, it was j^ointed out to me by the donor that the 

 specimen differed considerably from the Dorcas, and I was informed 

 at the same time that its distinctness is recognised by the Ai-abs, 

 who call it rliozal-rim ; rhozal being the name of the dorcas, and 

 rim that of Loder's Gazelle {G. lejotoceros). On comparison of the 

 specimen with an undoubted Dorcas from the Biskra district, the 

 difference between the two became apparent (text-fig. 193). 



Mr. Hay's specimen is about the same size as a Dorcas, but 

 appears to have rather larger ears, — I say appears to have, because 

 one is never certain whether there may not have been stretching 

 or shrinking in the mounting. Its most distinctive characteristic 

 is, however, to be found in the form of the horns, which com- 

 pletely lack the double, sublyrate curvature of those of the Dorcas, 

 and incline almost directly upwards and slightly inwards, with a 

 slight inward and forward turn at the tips. There are also much 

 fewer rings on the horns, the present specimen having only 12, 

 whereas a Dorcas may have 24 or 25 ; possibly a more aged 

 example of the new form might develop two or three more rings, 

 but even then the difference would be very considei-able. 



The face-markings differ considerably from those of a Dorcas, 

 a,nd are more like those of an Edmi {G. cuvieri), the middle stripe 

 being much darker, with a conspicuous nose-spot, and the light 

 eye-stripes much less apparent, while the forehead lacks the 

 chestnut tint of the Dorcas. The body does not show the faint 

 light stripe above the flank-band which occurs in the Dorcas ; the 

 knee-tufts are larger and blacker ; and the tail is brown instead 

 of black, with a shorter fawn area at the base. 



As the skull of Mr. Hay's specimen is mounted in the skin, I 

 cannot give cranial characters; but the foregoing features are 

 amply sufficient to distinguish the new Gazelle from the Dorcas, 



* June 3rd, 1911. 



