EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 67 
ALCELAPHUS COKII TAN (Zukowsky). 
1910. Bubalis coket Houtister, Smithsonian Misc. Coll., vol. 56, No. 2, p. 2. 
March 31. (Part, specimen from Thika River; not of Giinther.) 
1913. Bubalis cokei tanae ZuKowsky, Archiv Naturg., Jahrg. 79, Abt. A, Heft 10, 
p. 97. (Upper Tana Valley, northward from Nairobi; type in Berlin 
Museum. ) 
1914. Bubalis cokei kongoni Roosevett AND He ter, Life-Hist. African Game 
Anim., vol. 1, p. 392. (Part.) 
Specimen.—One, as follows: 
Britis East Arrica: Punda Milia, near Thika River, 1 skull and 
head skin (Rainsford). 
The peculiarities of this skull, compared with specimens of the 
cokw group from Athi Plains and other localities, were described in 
my report on the mammals collected in British East Africa by John 
Jay White, 1910, but the material then at hand seemed insufficient 
to prove the validity of a local race. The specimen without doubt 
represents the subspecies later described by Zukowsky from the 
upper Tana Valley. 
ALCELAPHUS COKII KONGONI (Heller). 
Plate 22. 
1910. Bubalis cokei HottisterR, Smithsonian Misc. Coll., vol. 56, No. 2, p 2. 
March 31. (Part; not of Giinther.) E 
1910. Bubalis cokei Roosevetr, African Game Trails, Amer. ed., p. 475; London 
ed., p. 487. (Part; not of Giinther.) 
1912. Bubalis cokei kongoni HELLER, Smithsonian Misc. Coll., vol. 60, No. 8, p. 5. 
November 2. (Loita Plains, Southern Guaso Nyiro River, British East 
Africa; type in U. S. Nat. Mus.) 
1914. Bubalis coke: kongoni RoosEvEtT AND Hetter, Life-Hist. African Game 
Anim., vol. 1, p. 392. (Part.) 
Specimens.—Twenty-nine, from localities as follows: 
British East Arrica: Agate’s, Southern Guaso Nyiro, 2 (Mearns, 
Rainey) ; Kabalolot Hill, 1 skull (Rainey) ; Lake Naivasha, 1 (Loring) ; 
Lime Springs, Sotik, 1 skull (Tarlton); Loita Plains, 4, including one 
odd skull (T. Roosevelt, Rainey); Palm Springs, Sotik, 2, including 
one odd skull (Rainey); Sigaa, 1 (Draper); Southern Guaso Nyiro 
River, 8, including four odd skulls (Mearns, Rainey, T. Roosevelt, 
Loring, Cuninghame); Suswa Plains, 3 (Rainey, Draper); Telek 
River, 6, including two odd-skulls (Rainey). 
One adult male specimen and a calf from Loita Plains are mounted 
in the exhibition group of hartebeests. 
An adult male of this form from the Southern Guaso Nyiro (No. 
182002, third molar considerably worn) measured in the flesh: Head 
and body, 1,800; tail vertebre, 495; hind foot, 520; ear from 
notch, 190. 
