EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 39 
COLOBUS CAUDATUS KIKUYUENSIS Lénnberg. 
1910. Colobus abyssinicus caudatus Rooseve tr, African Game Trails, Amer. ed., 
pp. 474 and 481; London ed., pp. 486 and 492. (Not of Thomas.) 
1912. Colobus abyssinicus kikuywensis LONNBERG, Ann. and Mag. Nat. Hist., ser. 
8, vol. 9, p. 63. January. (Escarpment Station, British East Africa; 
type in R. Nat. Hist. Mus., Stockholm); Kungl. Sv. Akad. Handl., 
vol. 48, No. 5, p. 31. 
1913. Colobus (Guereza) caudatus thike MarscuteE, Ann. Soc. Roy. Zool. Malac, 
Belgique, vol. 47 (1912), p. 56. December. (West side of Mount Kenia, 
British East Africa; type in Berlin Museum. ) 
1913. Colobus (Guereza) caudatus laticeps Marscure, Ann. Soc. Roy. Zool. Malac. 
Belgique, vol. 47 (1912), p. 57. December. (West side of Mount Kenia, 
British East Africa; type in collection of Major Powell-Cotton, Quex 
Park, Birchington, England.) 
Specimens.—Forty-two, from localities as follows: 
BritisH East Arrica: Kijabe, 13, including one odd skull and one 
fetus in alcohol (Heller, K. Roosevelt, Loring, Alexander); Mount 
Kenia, west slope, 28, including nine odd skulls and one large fetus 
in alcohol (Mearns, Heller); ‘‘ Nairobi,’ 1 (Turner). 
The specimens from the western slope of Mount Kenia were col- 
lected at altitudes ranging from 6,000 to 10,000 feet. I can find no 
constant external or cranial characters by which to separate the 
specimens from Mount Kenia from those collected near the railroad 
at Kijabe. This subspecies is closely related to typical eaudatus 
from Kilimanjaro and does not seem to differ appreciably in color 
from that form. The skulls of old males of C. c. kikuywensis appar- 
ently never develop a distinct sagittal crest as commonly found in 
comparatively young adult male skulls of true caudatus. 
Heller records a female at Kijabe containing a large embryo on 
June 4. Mearns found a female on Mount Kenia with ‘one fetus on 
October 13. ‘“‘Iris hazel; naked face and callosities dark gray; feet 
black’? (E. A. Mearns, on label of specimen from Mount Kenia). 
An interesting series of specimens of the young of Colobus caudatus 
kikuyuensis is in the collection. The youngest of these, with head 
and body in the skin measuring 270 millimeters, is almost entirely 
white. The hair is everywhere wavy or slightly curly. The face, 
arms, sides of neck, and feet are mixed with blackish and there are 
a few gray hairs in the terminal half of the tail, This specimen was 
collected on August 10 and is in its first year. The next oldest 
juvenile, taken on Mount Kenia October 5, shows distinctly the color 
pattern of the adult animal. The hair is short and wavy excepting 
along the sides of the back, where the white hairs of the mantle are 
beginning to lengthen. The tail is entirely whitish except for a 
slight grayish wash at base; the limbs, head, forward part of the 
back, and the underparts are largely blackish. This specimen 
measures almost exactly the same in length as the white specimen 
