181 
rump characteristic of C. melanorheus; the colour-contrasts of black and 
white of the latter, however, are in this case only dark brown and light brown 
respectively. 
Hab. Coast of West Africa from Gambia to the Gold Coast. 
This Duiker, which is of considerably smaller dimensions than the two 
previous species, and of a nearly uniform slaty-brown colour, is likewise a 
West-African species, but seems to have a rather more extended range along 
the coast. Whether it is really the Guévei of Adamson and Buffon is, to say 
the least of it, very doubtful, but it is probably the species figured under that 
name by F. Cuvier in 1826 from a specimen from Senegal then living in the 
Jardin des Plantes. Cuvier referred this specimen to the Antilope pygmea ot 
former authors, but, as we know from Sir Victor Brooke’s excellent article on 
this subject (P. Z.S. 1872, p. 637), that specific name properly belongs to the 
Royal Antelope of Western Africa, of which we shall give an account in a 
subsequent part of this work. 
In 1827, in his volume on the order Ruminantia in ‘Griffith’s Animal 
Kingdom, Major Hamilton Smith described a female of this species which 
had been brought home from Sierra Leone by Col. Charles Maxwell and 
dedicated it to that gentleman as Antilope maxwelli. In a subsequent 
volume of the same work, containing a synopsis of the species of mammals, 
Hamilton Smith not only repeated the description, but added, as apparently 
different, a description of another young specimen from the same country, 
and classed it as a different species under the name Antilope philantomba. 
Under this last designation also this Antelope is mentioned by Ogilby in the 
‘Proceedings’ of the Zoological Society for 1836, where he gives some 
particulars respecting two females which had lived for some time in the 
Society’s Gardens. 
At about this date also there were several examples of the “ Philantomba,” 
as 1t is commonly called in Zoological Gardens, living in the Derby Menagerie 
at Knowsley. In Waterhouse Hawkins’s drawings of the animals in this 
splendid collection, which were subsequently edited by Gray, Maxwell’s 
Duiker appears to have been mentioned under three different names—first as 
C. maxwelli (plate xi. a), secondly as C. punctulatus (p. 11), and thirdly as 
C. whitfieldi (plate xi. fig.2). So far as we can tell all these names must refer 
to the present species, which seems to vary considerably between youth and age. 
2c 2 
