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edge, and go out to feed in herds on the open grass-flats outside the belts of 
forest.” 
Whether the Waterbuck of the White Nile, referred by Gray and Heuglin 
to Cobus ellipsiprymnus, is of this species or belongs to C. defassa, is perhaps 
a little doubtful. We should be inclined to think that the latter reference 
is more likely to be correct. 
In European menageries the Waterbuck is not usually to be met with, 
though there have been occasional specimens in some of the gardens in 
Holland and Germany. Sclater sawa pair at Amsterdam in June last. ‘The 
Zoological Society of London received their first specimen of this Antelope 
(a male) in June 1890, and a female in May 1891. Both of these animals 
were obtained in British East Africa, and were presented to the Society by 
Mr. G. S. Mackenzie, F.Z.S. In 1893 the pair bred and a young female was 
born in the Menagerie on the 4th May, furnishing, so far as is known, the 
first instance of this animal having reproduced in captivity. The mother 
and young were figured by Smit in the Society’s ‘ Proceedings’ for 1893, and 
the figures are repeated in our Plate XX XII., where a head of the male of 
the same pair is also introduced in the background. 
In the British Museum will be found a fine mounted pair of this Antelope 
from Mashonaland (Selous), and a good series of skulls from various localities, 
amongst which are examples from Nyasaland (Sir H. H. Johnston) and from 
the banks of the Webbe in Somaliland (Swayne). 
August, 1896. 
