146 
We subjoin the notes with which Mr. Crawshay has favoured us on this 
species :— 
“'The form of Codus represented by the present specimen from Senga, to 
the west of Lake Nyasa, is only met with, J. believe, in the neighbourhood 
of the Upper Zambesi River, in the water-basins of Lakes Mweru and 
Tanganyika, and perhaps also in those of one or two more of the Central 
African lakes. It does not occur in the water-basin of Lake Nyasa itself, 
where only the large grey C. ellipsiprymnus is found; nor until now has it | 
ever been recorded nearer Lake Nyasa than the valley of the Sayisi River, 
30 miles or so east of the southern end of Lake Tanganyika, where 
C. vardoni is met with. It remains to be seen what naturalists make of it: 
whether it is to be regarded as only a diminutive race of C. vardoni or as 
a new species altogether. 
“In general shape and colouring, seen by itself, it appears to be C. vardont ; 
in size, however, it is considerably smaller ; and when specimens of the two 
come to be laid side by side there may be other points of difference. But 
I wish to lay stress on the fact that, apart from the distance separating the 
districts where the two are found, the physical aspects of their several haunts 
differ very materially. 
“ Cobus vardont is always found in or on the outskirts of swamps, usually 
on open, marshy plains, where the grass is rich and green; moreover, as a 
rule, it is met with in large scattered herds, feeding in the open all 
over the place—such at any rate has been my experience in the countries 
bordering on Lakes Tanganyika and Mweru. On the other hand, C. senganus 
is a native of dry, hilly country, often rough and stony, and far from any 
swampy land, though near a river. Again, it is not at all plentiful in 
Senga; I saw only two during my travels in the neighbourhood, both 
females, of which the present specimen is one. 
‘“‘ Regarding the habits of this animal I know very little—no more, in fact, 
than when, where, and how I became possessed of the specimen, which 
was as follows :— 
‘During the latter part of the dry season of 1895 I had occasion to 
undertake a journey from Deep Bay on Lake Nyasa into the Senga country, 
which is in the valley of the Loangwa River—a very considerable stream 
even at this point. The Loangwa drains a large area of country between 
Lakes Nyasa and Bangweolo, and after a course of some 400 miles or more, 
