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ARKIV FÖR ZOOLOGI. BAND 4. NIO 15. 



poses like so many bright colour marks, beards, whiskers, 

 tufts etc. in other monkeys. If it is considered that the 

 white marks in the beginning of the series include white 

 whiskers and a white mark at the tip of the tail, and then 

 in the next stage a white brow-band and white perineal 



Fig. 3. 



patches, are developed, it appears quite plain that these must 

 be interpreted as ornamental marks or possibly recognition- 

 marks at the same time. For just exactly in identically the 

 same places ornamental marks are of common occurence in 

 other monkeys. It is evidently in accordance with the monkey- 

 taste to have the ornaments placed in such a way. This is so 

 well known that it needs no confirmation but to any one who 



