CERCOPITHECUS TALAPOIN. 41 



NOTE XL 

 ON CERCOPITHECUS TALAPOIN ERXLEBEN. 



C. L. REUVENS. 



February 1890. 



(Plate 2). 



As Prof. Schlegel, in March 1876, finished his»Mono- 

 graphie des Singes" there was no specimen of C. talapoin 

 in the Leyden Museum. He , therefore , ranged this species 

 as a subdivision in the great group ofCercopithecidae, 

 saying that, according to Is. Geoffroy S* Hilaire, this species 

 was characterized by only three tubercles on the fifth 

 lower molar. 



Having worked , some time ago , in the Monkeys of the 

 Leyden Museum, I found that, since 1876, the collection 

 was increased by three specimens of this species. On the 

 bottom of the stand of one of these specimens I found 

 the following remark , written by the hand of Schlegel : 



» Cercopithecus talapoin. cf ad. Tue au Gabon prés de 

 »Dongola. La tête étant fortement endommagée on n'en 

 »a pu tirer le crane dont la dernière molaire de la machoire 

 » inférieure offre toutefois dans cet individu quatre tubercu- 

 »les absolument comme dans tons les autres Cercophitèques." 



My attention once having been called upon this subject, 

 I examined the skull of one , and the skeleton of another 

 of the three above mentioned specimens, and found that 

 the adult ones have on their last molar in the lower 

 maxilla four well-distinguished tubercles, in the upper 

 maxilla, however, the crown of the last molar is nar- 



Notes from the Leyden IMuseuni, Vol. XIII. 



