PYGATHRIX 21 



In this paper the Author creates the genus Pygathrix with 

 Simla nemceus Linn., as the only species and type, and in the 

 genus Cercopithecus (Lasiopyga), the following members of 

 Pygathrix are placed: (C) matirus (nee Schreb.), ex Java = 

 (C) AURATus Geoff., first described; (C) latibarbatus Geoff., = 

 P. CEPHALOLOPTERA (Zimm.), and (C) entellus Dufresn. 

 The species of Pygathrix in this paper were considered co- 

 generic with those of Cercopithecus (nee Gronov.), = (Lasi- 

 opyga), and their characters were overlooked. 



182L Horsfield, Zoological Researches in Java. 



Pygathrix aurata E. Geoff., redescribed as Semnopithecus 

 pyrrhus. 



1821. Raffles, in Transactions of the Linncean Society of London. 



Pygathrix melanolopha first described as Simia melalophus\ 



1821. Escholtz, in Kotsebue Reise in die Sild-See und nach der Ber- 

 ings-Strasse zur Erforschung einer nordostlichen Durchfahrt. 

 Pygathrix aygul.'\. redescribed as Presbytis mitrata. 



1822. Raffles, in Transactions of the Linncean Society of London. 

 Pygathrix cristata first described as Simia cristatus. 



1823. Desmarest, Mammalia. Supplement. 



Pygathrix cristata redescribed as Semnopithecus pruinosus; 



and Pygathrix aygula as S. comatus. 

 1825. Desmoulin, in Dictionnaire Classique d'Histoire Naturelle. 



Pygathrix aurata redescribed as Simia ceylonicus; and 



Pygathrix cephaloloptera redescribed as Semnopithecus 



fulvogriseus. 

 1825. Otto, in Nova Acta, Kaiserliche Leopoldino Carolinische 



Deutsche Akademie der Naturforscher. 



Pygathrix cephaloloptera redescribed as Cercopithecus 



leucoprymnus. 



1829. Fischer, Synopsis Mammalium. 



In this work under the genus Simia the following species of 

 Pygathrix are given: {S.) nemceus; (S.) entellus; (S.) 

 melanolopha; {S.) aurata; (S.) edwardsi = P. aurata; 

 (S.) fulvogriseus = P. cephaloloptera ; (S.) comata = P. 

 aygula; (S.) leucoprymna = P. cephaloloptera; (S.) 

 cephaloloptera; and (S.) johni. 



1830. Horsfield, in Life of Raffles. Appendix. 



Pygathrix femoralis first described as Semnopithecus femo- 

 ralis. 



