40 
This Hartebeest, which is the northern representative of 5. caama, has 
been most appropriately named after Mr. Frederick John Jackson, F.ZS., 
the successful conductor of the expedition of the Imperial British East 
African Company to Uganda in 1889 and 1890 *, and the discoverer of the 
species, which, when previously met with, had always been confounded with 
other members of the genus. It should be recollected that, besides his 
merits as a geographical explorer, Mr. Jackson is an ardent zoological 
collector and observer. The splendid series of birds which he obtained 
during the expedition just spoken of, and which embraced examples of nearly 
300 species, has been described by Dr. R. Bowdler Sharpe in five papers 
published in ‘The Ibis’ for 1891 and 1892. Dr. Sharpe’s account of this 
remarkable collection is rendered still more complete by Mr. Jackson’s 
excellent field-notes which accompany it. Mr. Jackson has also published 
some very interesting remarks on the Antelopes of British East Africa in one 
of the recently issued volumes of the Badminton Library upon ‘ Big Game 
Shooting.’ 
If we assume, as is probable, that the Hartebeest of the Bahr-el-Ghazal 
belongs to this species, the first examples of it sent to Europe would be those 
obtained by Petherick in 1859, which were referred by the late Dr. Gray to 
the Bubal of North Africa. Of these specimens the only one retained by the 
British Museum is the skull of a female. Another similar specimen from 
the Bahr-el-Ghazal was sent to the British Museum in 1884 by the German 
collector Bohndorff. Heuglin also (Reise N.O.-Afr. ii. p. 123) has spoken of 
the occurrence, on the Kir and Sobat rivers, of a Hartebeest allied to B. caama 
of South Africa. It is quite clear, therefore, that either Jackson’s Hartebeest 
or a species closely allied to it is found in the White-Nile district, although 
we must await the arrival of fresh specimens from this country and further 
information before we can decide exactly what this Hartebeest is. 
It is also probable that the ‘‘ Central African Hartebeest ” of Dr. Schwein- 
furth’s ‘Im Herzen von Africa,’ and Junker’s “ Bubalis caama,” met with in 
the Niam-Niam country, on the northern tributaries of the Congo, should both 
be referred to Bubalis yacksont. 
Thomas’s original characters of Bubalis yacksoni were based on a specimen 
transmitted by Mr. Jackson to Messrs. Rowland Ward & Co., shot in 
November 1889 in Northern Kavirondo, which is now in the British Museum. 
* See Mr. Ravenstein’s narrative of this journey, Pr. R. G. 8. xiii. p. 193 (1891). 
