221: Mr. R. Lydekker on Hornless Olapies. 



L. ibeanus. 



L. bozasi, Subsp. fcyp. Subsp. hindei. L. testuio. L. imhtm 



25465 TJ.S.N.M. Type 2. 2. 6. 2. Type 10. 5. 3. 152. Type 99. 8. 4. 97. 8. 4. 3t. ] 

 Upper length (tip of 



nasals to back of 



interparietal) 62-5 60 02 567 55 



Greatest breadth 42-5 38-5 42-5 88 355 



Anteorbital foramen, 



height 7-5 7-4 7 4 5-2 6'6 



Palatine foramina, 



length 133 11 107 95 10"2 



Mesopterygoid fossa, 



to tip of hamular 



processes 14 134- 14 10 13-2 



Upper molar series .. 14 128 138 12-9 11-2 



L. ibeanus, the species now described as new, is coloured 

 quite like the Abyssinian form referred to L. bozasi, and has 

 equally prominent lateral stripes. 



Its skull-characters are as described above, but as the 

 Aberdare specimens are larger and have larger teeth than 

 those from the Mau region, it appears to be necessary to 

 recognize the former as a special subspecies, which may be 

 named L. i. hindei, after the donor of the first specimen 

 received by the National Museum. The skull-measurements 

 of both forms are given above. 



Type of L. ibeanus : — 



Adult female. B.M. no. 2. 2. 6. 2. Captured by S. Couper 

 at Mile 513 of the Uganda Railway (between Londiani and 

 Lumbwa Stations) in Mau region ; altitude about 7000'. 

 Presented by C. Stewart Betton, Esq. 



Another from El-Burgon, presented by (J. S. Betton,and 

 a third from the Mau Forest near Njoro, collected and pre- 

 sented by Capt. F. W. Barrett. 



Type of L. i. hindei : — 



Adult female. B.M. no. 10. 5. 3. 152. Original number 

 801. Collected 15th March, 1910, by Robin Kemp at 

 Mutaragwa, Aberdare Mountains. Alt. 9000'. Presented 

 by C. D. Rudd, Esq. 



A second specimen from the same place, now in the Royal 

 Scottish Museum ; also an extra skull picked up dry. 



Another, the first received by the Museum, from the 

 Aberdare Mountains, without detailed particulars. Presented 

 by S. L. Ilinde, Esq. 



XXIV. — Hornless Okapies. By R. Lydekker. 



A FEW weeks ago Mr. Rowland Ward had on exhibition at 

 his establishment in Piccadilly the mounted skin of a hornless 

 okapi remarkable on account of its large size, a feature in 



