92 BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 
OUREBIA MONTANA COTTONI Thomas and Wroughton. 
Plate 36. 
1908. Ourebia cottoni THomas AND WrouGutTon, Ann. and Mag. Nat. Hist., ser. 8, 
vol. 1, p. 178. February. (Sirgoit Rock, Guas Ngishu Plateau, British 
East Africa; type in British Museum.) 
1910. Ourebia microdon HoumistER, Smithsonian Misc. Coll., vol. 56, No. 2, p. 4. 
March 31. (South of Nzoia River, Guas Ngishu Plateau, British East 
Africa; type in U.S. Nat. Mus.) 
1910. O[urebia] cottont HotutsterR, Smithsonian Misc. Coll., vol. 56, No. 2, p. 5. 
March 31. 
1910. Ourebia cottoni RooseveE tt, African Game Trails, Amer. ed., p. 475; London 
ed., p. 487. 
1911. Oribia macrodon LypDEKKER, Suppl. Game Anim. of Africa, p. 10. 
1914. Ourebia montana cottoni RoosrEvetT AND Heuer, Life-Hist. African Game 
Anim., vol. 2, p. 560. 
Specimens.—Twenty-nine, from localities as follows: 
British East ArricA: Guas Ngishu Boma, Guas Ngishu Plateau, 
5 (K. Roosevelt, Heller); Guas Ngishu Plateau, 11, including two odd 
skulls (White); Kabalolot Hill, Sotik, 2 (Rainey); Kampiya bibi, 
Guas Ngishu Plateau, 3 (T. Roosevelt, K. Roosevelt); Nzoia River, 
Guas Ngishu Plateau, 4 (K. Roosevelt, White, 'T. Roosevelt) ; Sigaa, 1 
(Draper); Sirgoit, 30 miles south, 3 (T. Roosevelt). 
With this large series of specimens, showing the variations within 
the race, it is impossible to recognize Ourebia microdon Hollister 
as a form distinct from Ourebia montana cotton. The specimens 
from Sotik seem inseparable from material from the Guas Ngishu 
Plateau. 
OUREBIA KENY Meinertzhagen. 
1905. Ourebia keny:re MerNeRTZHAGEN, Abstr. Proc. Foal Soc. London, No. 16, 
p. 15. March 14. (Fort Hall, British East Africa;' type in British 
Museum. ) 
1910. O[urebia] kenyx Houtisrer, Smithsonian Misc. Coll., vol. 56, No. 2, p. 5. 
March 31. (Specimen from ‘near Nairobi.’’) 
1914. Ourebia montana kenyx RooseveLtT AND Hetier, Life-Hist. African Game 
Anim., vol. 2, p. 561. 
Specimen.—One odd skull, as follows: 
British East Arrica: ‘Near Nairobi,’ 1 (Mearns). 
This skull was presented to Dr. H. A. Mearns by one of the game 
rangers in Nairobi with the information that it was obtained in that 
general region. Inasmuch as the species is not known from the 
immediate vicinity of Nairobi, it is probable that the specimen was 
originally obtained near Fort Hail or Mount Kenia, northeast of 
Nairobi, the only region where this oribi is at present known to occur. 
See Lydekker, Cat. Ungulate Mamm. Brit. Mus., vol. 2, p. 141. 1914. 
