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SOME NOTES ON THE 
akin to the typical hartebeestes ( Bubalis ) from which they 
are distinguished by the more moderate length of face, by 
the absence of the horn pedicle and by the simple lyrate 
form of the horns, while the withers are much less elevated 
above the hind quarters. 
Standing about forty-eight inches at the shoulder, the arrola 
or Hunter’s antelope ( D . Hunteri) is of a light and attractive 
build while the horns are of a simple and graceful form — slanting 
first outwards and upwards, then bending backwards, after 
which the long slender points are directed upwards and out- 
wards. The horns are heavily ringed for the lower half of 
their length, after which they are quite smooth. In young 
bulls the slender points are turned inwards, and may even 
cross and it is interesting to note that this sign of immaturity 
is also found in the impalla (fflfyceros melam'pus ) and is due 
to the rotation of the horny sheath on the bony axis during 
growth. But, in the considerable number of female arrola 
that I saw, the inward inclination of the tips was never so 
pronounced as in the case of young bulls. This may be 
explained, perhaps, by the fact that the horns in the females 
are shorter and lack the strong backward bend so noticeable 
in the males. 
The face is of medium length without any horn pedicle : 
the cheek teeth are remarkably large and are peculiar in that 
there are only two instead of the usual three premolars in 
the lower jaw. 
The face glands were remarkably developed in all the 
specimens I shot and the pits in the skull corresponding to 
them, though shallow, were large. The glands are surrounded 
by white hair, and the central cavities exude a thick dark- 
coloured excretion. Lateral hoofs of large sizes are present. 
The arrola is of a uniform pale cafe-au-lait colour, the cows 
being somewhat lighter than the bulls. The inner surface of 
the ears, the belly, and the tail are white as in the inverted 
chevron on the forehead which joins the two white patches 
round the eyes. A marked peculiarity, found, I believe, only 
in this species, is a large roll of loose skin, underlain with fat, 
situated just behind the horns across the skull between the 
ears and the horns. This is especially noticeable when the 
