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neck elongated and mane-like as in C. ellipsiprymnus, and muffle broad 
and naked as in that species. Size between that of C. leucotis and 
C. lechee. 
Horns strongly ringed, long and strong, projecting backwards, diverging in 
the middle, and approximating again towards the tips. Length along the 
curve (type specimen) about 27 inches, in a straight line from back to point 
194 inches, distance between tips 152 inches. 
Female similar, but hornless, and not so deep in coloration. 
The dark, almost chestnut-red general colour and conspicuous white patch 
on the upper back and nape render this Antelope quite unmistakable. 
Hab. Swamps of the White Nile and adjoining rivers. 
There can be no question that the great traveller and naturalist Theodor 
von Heuglin was the first discoverer of this splendid Antelope, which is 
one of the most strongly marked and most brightly coloured of the whole 
group. Unfortunately, however, Heuglin, though he gave it a name in 
1855, did not take the trouble to publish a description of it until 1863, 
and meanwhile, as we shall presently see, it was described and named 
elsewhere. 
The native country of Codus maria, as this Antelope must be called, 
according to the law of priority now generally followed by naturalists, is the 
swamps and morasses traversed by the White Nile and the Sobat, Bahr-el- 
Gazal, and Lower Kir, which are its affluents on the right bank. Here 
Heuglin tells us it lives in large troops. After describing it he adds that, 
as in its allies, the hairs on the coat of the male are rather long and on the 
neck form a kind of mane. The white marking on the sides of the head 
varies much in form and extent, and is often tinged with reddish or yellowish. 
The same is the case with the ears. ‘The long horns are twisted in a remark- 
able manner, so that from the side and below they look rather cork-screw 
like in shape. The tail, especially at the end, is more tufted and more 
strongly haired than in other Antelopes of this genus, and reaches down 
nearly to the heels. . 
On his return to Vienna about the year 1854, besides a series of skins and 
skulls, Heuglin brought with him an adult living female of this Antelope, 
which was placed in the Imperial Menagerie at Schonbrunn, but did not 
