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APES, MONKEYS, AND LEMURS 



in advance of it. This will be found an important point of distinction between 

 Allen's galago and all the remaining species, in which the last upper molar is much 

 smaller than the tooth in front of it. 



THE SENEGAL GALAGO (Galago senegalensis) 



The longest known of all the galagos is the Senegal galago. It was originally 

 described so far back as the year 1796, from specimens brought from Senegambia, 



THE SENEGAI, GAI.AGO. 

 (One-half natural size.) 



which may be regarded as its headquarters. Subsequent discoveries have, however, 

 shown that a galago exists on the east side of Africa to the south of the 

 Sudan, which, although described as a distinct species under the name of the 

 Sennaar galago (G. sennariensis} , is so closely allied to the Senegal galago that 

 it may probably be regarded as a mere local variety or race. Indeed, it is probable 

 that when we are fully acquainted with the zoology of the vast stretch of country 

 lying to the south of the Sahara desert, it will be found that this galago extends 

 right across Africa. 



