Rhodesia, Angola, and Northern Nigeria. 133 



from one of the hills of the Bautchi Highlands further to the 

 east. I therefore venture to describe Mr. Hyatt's Klip- 

 springer as a distinct subspecies : — 



Oreotragus oreotragus hgatti, subsp. n. 



Resembling 0. o. centralis in general outward appearance ; 

 skull normal. 



General colour of upper parts deep ochraceous, about as 

 in 0. o. centralis. Eye-rings and preorbital portion of face 

 (with the exception of a narrow, median, darker area on top 

 of muzzle) pale, yellowish-white or grey. Ears without 

 white spot on proectote; the dusky ground of the ectote 

 concealed in great measure by ochraceous "lining" hairs. 

 Top of head not blackened. Limbs grey dorsally; no dark 

 patches above hoofs of fore limbs ; inconspicuous dark hoof- 

 patches on hind limbs. 



Skull and horns quite normal; differing from that of 

 0.0. porteousi conspicuously in the much shorter and broader 

 nasals, larger teeth, and narrower (normal) frontals. 



Measurements of type-skull, with those of the type of porteousi in 

 parentheses :— Extreme length 140 (139); cranial breadth 51 (51); 

 width across orbits 74 (81-5); nasals, length X least width 33-5 X 15 

 (46 X 13-5) ; p-'-nv' 53 (47-o) mm. 



Type. An adult male. B.M. no. 13. 3. 8. 2. Collected 

 at Leri 'n-Duchi, N.E. Zaria Province, N. Nigeria, and 

 presented to the British Museum by Mr. M. P. Hyatt. 



Hah. Zaria Province, North Nigeria. 



While presenting a c'ose general resemblance to centralis, 

 0. 0. hyatti is sufficiently and clearly distinguished from the 

 Rhodesian subspecies by the characters of the face and ears. 

 It is much to be hoped that further, properly dated, material 

 will be procured from Nigeria, for it seems not improbable 

 that porteousi and hyatti represent two perfectly distinct 

 species. In preparing this paper, I have worked through all 

 the skulls of Oreotragus in the collection; but, apart from the 

 presence of horns in tlie females of the East African 

 0. 0. schilUngsi, I have found no cranial characters by 

 wiiich the various subspecies can be distinguished, except in 

 these two Nigerian forms. Of them, hyatti agrees perfectly 

 in skull-form with the normal subspecies of 0. oreotragus, 

 while ;'07'^eoM5i differs from all. 



