PYGATHRIX 3S 



Type locality. Sumatra. Type in British Museum. 



Genl. Char. General color above and below, much deeper and 

 richer than P. melanolopha; under parts not yellow. 



Color. Crest on hinder part of head brownish black in front, but 

 remainder, together with hind neck, yellowish red; long brownish 

 black stiff hairs shooting outwards from a narrow line on forehead 

 over eyes, continuing backwards from corner of eyes over temples 

 to back of head, forming a narrow streak ; top and sides of head, and 

 outer side of limbs bright fox red; upper parts of body dark brown- 

 ish red, close to cinnamon rufous ; flanks lighter red ; throat and sides 

 of neck buff, with a red tinge varying in depth among individuals ; inner 

 side of limbs and lower abdomen reddish buff ; chest and upper parts 

 of abdomen reddish ; tail bay color throughout. Ex type in British 

 Museum. 



Measurements. Total length, 1,530; tail, 850; foot, 180. Skull: 

 total length, 98.3 ; occipito-nasal length, 86.5 ; intertemporal width, 

 47.8 ; breadth of braincase, 62.8 ; Hensel, 62.9 ; zygomatic width, 78 ; 

 median length of nasals, 91 ; length of upper canines, 19 ; length of 

 upper molar series, 26 ; length of mandible, 68.1 ; length of lower molar 

 series, 35. Ex type British Museum ? 



This is a larger and differently colored monkey from S. melano- 

 LOPHUS Raffles, and is recognizable also by the differences between 

 the skulls, that of the present species not only being larger in accordance 

 with the greater size of the animal, but has the upper tooth rows 

 more curved, a broader basioccipital and presphenoid, a more largely 

 developed bullae, and a broader mastoid region. Canines much longer. 

 The crest of P. nobilis is longer and of quite a different color. 



Anderson in his Zoology of Yunnan says that an examination of 

 the type of P. nobilis did not reveal any differences between it and 

 P. MELANOLOPHUS. I wondcr, however, that he arrived at such a 

 conclusion, and it must be supposed that he inadvertently compared 

 two specimens of P. nobilis together, but if this was not the case, it 

 is difficult to understand how he could reconcile the difference in size 

 and coloration existing between the two forms, to cause him to con- 

 sider them as belonging to one species, and this also without considering 

 the cranial characters. 



Pygathrix RXJBicuNDA (MuUer). 



Semnopithecus rubicundus Miill., Tijdsch. Natur. Geschied., V, 

 1838, p. 137, pi. ; Martin, Mammif. Anim., 1841, p. 473 ; Miill. 

 und Schleg., Verhandl., 1839-44. pp. 61, 69, Tab. 9, figs. 1, 



