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68. THE SENGA KOB. 
COBUS SENGANUS, sp.vn. 
Similar to C. vardont in most respects, but very much smaller (height at 
withers in a female, measured in the flesh, 304 inches). General colour rather 
darker than in @. vardoni, especially on the head. Lars black, tipped 
behind for fully one-third of the length, instead of merely at their extreme 
tip. No white ring above the hoofs. 
Horns unknown. 
Skull measurements of the type ( @ ), not fully adult, although enceinte when 
killed :—Basal length 8-9 inches, greatest breadth 3°75, orbit to muzzle 5°85. 
Hab. Senga, Upper Loangwa River, W. of the N. end of Lake Nyasa: 
altitude 2500 feet. 
This Antelope, the second member of the genus lately discovered and 
recognized by Mr. Richard Crawshay, seems to be a small highland form of 
the Poku, and it is possible that intermediate specimens between the two 
may be hereafter found. In this case C. senganus will have to be reduced to 
a subspecies of C. vardoni. But until such intermediate forms are obtained 
we do not feel justified in presuming their existence, and therefore class 
C. senganus as a different species. 
The only specimen of C. senganus as yet procured is senna a 
female, young enough still to retain its milk-dentition. The general 
development of the skull, however, and the fact that, as we are informed 
by Mr. Crawshay, there was a nearly mature foetus within the womb, show 
that the animal had practically attained its full growth, and therefore that 
its small size may be justifiably used as a distinguishing character. 
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