1901.] O^ THE IBEX OF ABTSSIKIA. 281 



accompanied by a striping in dark brown and white of the fore 

 and hind limbs. 



Distinguished from Helladotheriimi by the presence of large 

 prfe-lacrymal vacuities in the skull as in Glraffa, by the presence 

 of a pair of lateral posterior dome-like prominences on the f rentals 

 (representing the bony outgrowths of Glraffa), and, lastly, by the 

 presence of a minute accessory tubercle on the mediad face of the 

 first upper true molar, which exists sometimes in Gira-ffa but is 

 absent in Hellaclotherium. 



Species. Okapia. JOHisrsTo:?^!. 



(= Equus johnstoni Sclater, P. Z. S. 1901, vol. i. p. 50.) 

 The only species known, now represented by two skulls and a 

 complete skin, was originally described as Equus johnstoni by 

 Dr. P. L. Sclater, from two pieces of skin which it appears were 

 cut from the striped region of the hind limbs. 



Sir Harry Johnston, who was himself present, gave an account 

 of the facts connected with his discovery of the Okapi. 



Sir Harry also stated that during his last excursion to the north 

 of Mount Elgon he had found large herds of a Giraffe in that 

 country which appeared to be distinct from previously known 

 forms of this mammal in having five horns, four placed in pairs 

 and one anterior in the middle line. Pour examples of this 

 animal were now on their way home, and would soon be here to 

 settle the validity of this presumed new species. 



The Hon. "Walter Eothschild, M.P., P.Z.S., exhibited specimens 

 of a mounted male and two unmounted males and a female of the 

 Ibex of Abyssinia {Oapra ivalie Eiippell), and made the following 

 remarks : — 



When Mr. E. Lydekker wrote his great work 'The Wild Oxen, 

 Sheep, and Groats of All Lands,' in 1898, this fine species was 

 only known from the type specimens in the Senckenberg Museum 

 at Frankfort. Since then a few pairs of horns have been un- 

 earthed, collected at various times by Herr Menges, the wild- 

 beast trapper, but it has remained for Captain Powell-Cotton to 

 clear up the history of Capra walie by the fine series he has 

 collected of this fast-vanishing form. 



EiippeH's original description is as follows : — " Pront and upper- 

 side of head, neck, and back beautiful chestnut-brown ; muzzle, a 

 curved streak between eye and ear, sides of neck, body, and rump 

 reddish umber-brown. Region under the eye and ear, the chin, 

 throat, chest, and inner surface of the thighs and belly dirty 

 white. Outer side of thighs and legs and sides of belly dirty grey. 

 Peet whitish, with a large spot at the fetlock and a stripe down 

 the legs black. Eoot of tail chestnut- brown, tip black. Inner 

 side of ears white, with a reddish border, outer surface red-brown. 

 Iris of eye pale brown, pupil dark blue." 



