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variety of the Brindled Gnu future researches only can decide. We know as 
yet too little of its exact range and mode of occurrence to be able to settle 
this question, nor is there a sufficient series of specimens available. If it 
should be found hereafter that beyond a certain boundary in Eastern Africa 
all the Gnus met with are of the White-bearded form, and that along this 
line of junction there are transitional forms between this and the ordinary 
Brindled Gnu, we should do well to allow it merely subspecific rank. If, on 
Fig. 14. 
Skull of Connochetes albojubatus, 3. 
the other hand, it shall be found that the White-bearded Gnu occurs side by 
side with the Brindled Gnu without mixing or interbreeding with that 
animal, we shall have to count it as a full species. 
‘Thomas, in 1892, based his Connochetes taurinus albojubatus on a head in 
Mr. F. J. Jackson’s collection, at that time under the care of Messrs. Rowland 
Ward and Co., but since kindly presented by Mr. Jackson to the National 
Collection. Thomas, from erroneous information, gave the locality as 
