CEBCOPITHECUS SIGNATUS. 55 



NOTE XL 



ON TWO NEW SPECIES OE CERCOPITÏÏECÜS. 



Dr. F. A. JENTINK. 



December i885. 



Cercopithecus signatus. 



In 1877 our Museum received a Cercopithecus died in 

 the Zoological Garden at Rotterdam. Professor Schlegel 

 thought it to be a new species and called it Cercopithecus 

 signatus , but he never described it. As it seems to me to 

 be a very good species I describe it under the name given 

 by Schlegel. It belongs to Schlegel's section VIII (vide 

 Museum d'Histoire naturelle des Pays-Bas, Simiae , p. 86): 

 Cercopithèques a nez Mane; A: Base du triangle , forme par 

 le champ nasal revetu cle poils blancs , tournee vers le haut. 

 I thus compare it with the two species of this subdivision: 

 Cercopithecus petaurista and Cercopithecus aseanias. I remem- 

 ber that C. petaurista is characterized by having the white 

 color of the sides of the head interrupted by a black band 

 running from the orbits to the sides of the neck , and by 

 another black band running from ear to ear round the 

 vertex {fascia nigra trans caput ah aure ad aurem , see 

 Erxleben p. 36), C. aseanias by a black band running from 

 the nose to the sides of the neck. C. signatus presents no 

 trace of the mentioned black bands and by this character 

 it is very easy to distinguish it from its congeners. 



Upperparts of body and of tail , underparts of body and 



Notes from the X^eyderi IVIuseuiiii , Vol. VIU. 



