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south of Gélis, in Ogo and in the Haud, as well as in Ogo-Gudan, the country near 
Hargeisa where Guban rises gradually into Ogo. 
“T have shot large numbers of Gazelles for food at various times, and have always 
noticed that the plateau variety has a much thicker and longer coat than the other. 
This is possibly the result of natural selection, as the high plains of the Ogo and the 
Haud, where it lives, are subject to sweeping cold winds, and the nights are very cold 
indeed. The altitude of these plains inhabited by the Plateau Gazelle is from three 
Fig. 63. 
Head of adult female Speke’s Gazelle. 
(Mr. F. Gillett, F.Z.S.) 
thousand to over six thousand feet, but doubtless they go much lower towards Ogadén. 
The great steppe of Gélis, with its prolongations east and west, which rises some forty 
miles inland, and separates Guban, the low coast country, from Ogo, the high interior 
country, forms the natural line of demarcation between these two Gazelles.” 
A still more recent explorer of Somaliland, Mr. A. E. Pease, M.P., F.Z.S., 
has most kindly favoured us with some excellent notes on Speke’s Gazelle 
and its sister species, which we cannot do better than reproduce. Mr. Pease 
has also sent us along with his MS. remarks a sketch-map of the northern 
part of Somaliland, in which the ranges of these two species are accurately 
shown. 
