TIANG 
81 
of the horn-pedicles and simpler form of horn—in this 
case a gentle backward curve, contrasting with the 
abrupt angles in hartebeest proper. A glance at the 
annexed diagram showing horns of ( A) tiang, and [B) 
Jackson’s hartebeest — which latter animal also occurs 
in the Sudan—will demonstrate the difference between the 
two genera better than words. 
The Upper Sudan seems to form, not exactly a 
rendezvous (since none of the animals actually meet), but 
rather a centre of dispersal for three out of the four allied 
species of Damaliscus. 1 From its southern limits (say 
Tiang on Gaze. 
about 5 0 North latitude) the tiang—our present subject— 
spreads away northwards to Sahara ; while southward— 
with a gap between—its cousin, the topi, extends into 
Equatoria; and from the west—again separated by a 
hiatus—intrudes the korrigum from Senegal. The first 
two of these three relatives agree among themselves 
(and equally with their somewhat segregated cousin, the 
sassaby of southern Africa) in the extreme richness and 
depth of colour of their coats. No other group quite 
matches it—a deep glossy mahogany-red, set-off by con- 
1 Besides the four referred to, other three species are, rightly or 
wrongly, included in the genus Damaliscus , to wit:—(i) Hunter’s antelope, 
the headquarters of which lie along the Tana River in British East Africa ; 
(2) the blessbuck; and (3) the bontebuck, both these latter being 
exclusively South African. None of these three quite conform in external 
characteristics with the four species under review; nor are they included 
in this particular survey of the Damaliscus group. 
F 
