3 r 4 
BRITISH CENTRAL AFRICA 
closely related Cobus lechzve. A smaller Cobus closely allied to the Puku has 
recently been discovered in the Senga country (Luangwa Valley) by Mr. 
Crawshay and has been described by Mr. Oldfield Thomas under the designa¬ 
tion of Cobus senganus. In colour it is said to be rather darker than the 
Puku. The Lechwe waterbuck is one of the most water-loving antelopes 
known, though it must be admitted that it is some degrees less aquatic than 
Speke’s Tragelaph which has been longer at this mode of life and has there¬ 
fore developed very remarkably extended hoofs. The Lechwe though having 
slightly longer hoofs than in the other forms of Cobus , does not present any 
very striking development of the foot for life in the water, except that at the 
FEMALE WATERBUCK 
back of the toes, between the false and the big hoofs, there is a naked place not 
covered with hair. Mr. Sharpe and other observers relate that the Puku and 
Lechwe constantly associate together in large herds. Up to the present time 
the range of the Lechwe does not seem to extend farther north than Lake 
Mweru, nor farther east than the watershed of Lake Nyasa. 
Amongst other heterodox opinions I hold that the Hippotragine section of 
antelopes, including the Oryxes, was developed from a form of waterbuck. 
This would appear to be absurd to anyone who merely looked at the commoner 
forms of Cobus ; but that remarkable and most beautiful antelope, Mrs. Gray’s 
Waterbuck (Cobus maria ) of the White Nile irresistibly suggests in the shape of 
its horns and the coloration of the face an approach to the Equine antelopes 
which again have given rise to the Addax and to the four species of Oryx. 
The Hippotragine or Equine antelopes are represented in British Central 
