PYGATHRIX 27 
PyYGATHRIX PERCURA first described as Presbytis percura; and 
PYGATHRIX CATIMANA first described as Presbytis catimana. 
1909. D.G. Elliot, in Annals and Magazine of Natural History. 
Of the genus PycaTHRix, under the genus Presbytis, the 
following species were here first described: P. NuDIFRoNS; P. 
MELAMERA; P. NUBIGENA; P. DILECTA; P. MARGARITA; P. 
CREPUSCULA ; P. c. wroughtom,; and P. LANIA. 
1909. O. Thomas and R. C. Wroughton, in Annals and Magazine of 
Natural History. 
Pygathrix cristata pullata first described as Presbytis cristata 
pullata; and Pygathrix obscura carbo was first described as 
Presbytis obscura carbo. 
1909. Dollman, Annals and Magazine of Natural History. 
P. RUBICUNDA redescribed as Presbytis ignita. 
1910. D. G. Elliot, in Proceedings of the United States National 
Museum. } 
Of the genus PycaTHrix, the following species were first de- 
scribed under Presbytis: P. FLAvICAUDA; P. SANCTOREM; and 
P. ULTIMA. 
1910. O. Thomas, in Proceedings of the Zoological Society of Lon- 
don. 
PYGATHRIX ROBINSONI first described as Presbytis robinsont. 
1911. M. W. Lyon, in Proceedings of the United States National 
Museum. 
PYGATHRIX RUBICUNDA redescribed as Pygathrix r. rubida. 
1911. Robinson and Kloss, in Journal of the Federated Malay States 
Museums. 
PYGATHRIX FEMORALIS redescribed as Presbytis neglecta keati. 
GEOGRAPHICAL DISTRIBUTION OF THE SPECIES AND SUBSPECIES. 
The members of the genus PyGaTHRIx have a wide distribution 
and are found throughout the peninsula of India, in Ceylon, Thibet, 
and the countries on the east of the Bay of Bengal, from Assam 
throughout the Malay Peninsula, Cochin China, Annam, Siam, and 
various islands in the Eastern Archipelago, including the great islands 
of Borneo, Sumatra and Java, but not, so far as known, in the Philip- 
pines. 
Beginning in the farthest north we find in the Chumba Pass, 
Thibet, P. LAN1A, but its range to the north is not known. From Cash- 
mere to Bhutan P. scuistTacea is found, while P. ENTELLUs the allied 
