SEMNOPITHECUS FEMORALtS. 215 



NOTE XLII. 



SOME OBSERVATIONS RELATING TWO 



SEMNOPITHECUS-SPECIES EROM THE MALAYAN 



ARCHIPELAGO. 



Dr. F. A. JENTINK. 



September 1889. 



(Plate 9, figs. 5, 6, 7). 



The well known scientific investigator of North-East- 

 Sumatra , Dr. B. Hagen , presented some weeks ago to 

 our national Museum two skins belonging to two diffe- 

 rent Semnopithecus-sipecies from Deli , in consequence of 

 which 1 was obliged to enter into the labyrinth of syno- 

 nymes of the very entangled Semnopithecus-gvouip. The fol- 

 lowing lines contain some conclusions. 



Semnopithecus fem oralis Horsfield. 



One of the specimens agrees exactly with the specimens 

 collected by the late Horner on Mount Ophir, West-Cen- 

 tral-Sumatra, and since in our Museum. The species has 

 been described and figured in the » Verhandelingen, 1839 — 

 44, p. 73, Tab. 10 bis" under the name of Semnopithecus 

 Sumatranus. » Although specifically separated from S. 

 »chriisomelas'\ the author remarked, 1. c. p. 73, »S. Suma- 

 »tranus is by its general appearance and by its color so 

 » closely allied to S. chrysomelas that it perhaps ought to 

 »be considered as a local variety of that species." 



In 1876 Schlegel (Catalogue, Simiae , p. 45) rejected the 

 specific title Sumatranus in favour of the name given for- 



Notes from the Leyclen Museum, Vol. XI. 



