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oes | PROCEEDINGS OF THE NATIONAL MUSEUM. 471 
Alcelaphus cokii Gunther. Coke’s Hartebeest. 
Four skins of this singular antelope were preserved. They are en- 
tirely of a dull tawny brown color. The tail is crested; pale brown in 
the proximal third and black distally, with some brown hairs inter- 
mingled. The ears are brown without, white within. 
The horns of the female are smaller than those of the male, and differ 
in having the points directed backward exactly in the plane of the 
forehead, and slightly approximated. In the male the extremities of 
the horns are directed downward as well as backward and are parallel 
or slightly divergent. 
The horns of four individuals are of the following dimensions: 
34689 
: i 34690 | 34691 
Measurements. dad. 
dad. djv. 
Inches. | Faled Inches. | Inches. 
} 113 3 
SSTEGUNUI Me SULA ONG ING we Jo's cw actais waicisistoiate oo sale degas made sies sees 103 10% gi 
Menouh around the’ curves infront... 2-2. ss.2.0-5-.22c2 5 ees cece 143 164 13} 12 
Dastance between the extremities -....:-.-.------.. 006+ -scesecceeees 14 123 17 103 
All have the permanent dentition, except the young male (54691), 
which has the superior milk premolars and the three molars. 
g3ge5- Taveta. (Skin and skull.) 
34690. Taveta. (Skull.) 
34691. Taveta. (Skull.) 
34692. Taveta. (Skull.) 
18947. Taveta. (Skin.) 
18948. Taveta. (Skin.) 
19706. Mount Kilima-Njaro, 1889. 
Kobus ellipsiprymnus (Ogilby). Water buck. 
Three males—an adult, a half-grown and a young individual—make up 
the series of this species. The largest male has horns 194 inches long 
in a Straight line, 222 inches around the posterior curve, and the tips 
are Sinches apart. This individual has the entire permanent dentition, 
with the last molar unworn. The second male has horns 10 inches ° 
long, measured in a straight line; 11 inches, if measured around the 
posterior curve. The tips are 83 inches apart. In this case the last 
true molar has not appeared, and the premolars are those of the milk- 
dentition. The third specimen has only the milk premolars in position. 
The youngish male is more dusky throughout than the adult. 
riees- Male, adult. Taveta. 
49262. Male, young. Taveta. 
sigos- Male, very young. Taveta. 
Tragelaphus scriptus roualeynii (Gordon-Cumming). Bosch-bok. 
Skins of a male and a female of this subspecies, according to Mr. 
_Thomas’s revision of the genus, were preserved. The male is much 
darker than the female. No transverse white lateral bands are visible 
