36 PYGATHRIX 
2, 3, 4, Tab. II, fig. 1; Schinz, Syn. Mamm., I, 1844, p. 36; I. 
Geoff., Cat. Primates, 1851, p. 16; Gerv., Hist. Nat. Mamm., 
1854, p. 63, fig.; Wagn., Schreb., Saugth. Suppl., V, 1855, p. 
22; Dahlb., Stud. Zool. Fam. Reg. Anim. Nat., fasc. I, 1856, 
pp. 88, 90; Gray, Cat. Monkeys, Lemurs and Fruit-eating 
Bats, Brit. Mus., 1870, p. 17; Schleg., Mus. Pays-Bas, Simiz, 
1876, p. 36; Anders., Zool. Exped. Yunnan, 1878, p. 33; Hose, 
Mamm. Borneo, 1893, p. 9; Forbes, Handb. Primates, II, 
1894, p. 128. 
Semnopithecus (Trachypithecus) rubicundus Reichenb., Voll- 
stand. Naturg. Affen, 1862, p. 91, pl. XV, figs. 213-215. 
Presbytis ignita Dollman, Ann. Mag. Nat. Hist., LV, 1909, 8th 
Ser., p. 204. 
Pygathrix rubicunda rubicunda Lyon, Proc. U. S. Nat. Mus., XL, 
1911, p. 138. 
Pygathrix rubicunda rubida Lyon, Proc. U. S. Nat. Mus., XL, . 
1911, p. 139. 
MAROON LANGUR. 
Type locality. East of Banjer River, Southeast Borneo. Type? 
in Leyden Museum. 
Geogr. Distr. Northern to Southeastern Borneo, to 1,000 feet 
elevation on Mount Mulu. 
Genl. Char. Hair radiating on the forehead; crest compressed; 
mandible light, slender. 
Color. Crest long, erect from crown and falling over to each 
side from the occiput, and with the entire upper parts uniform 
chocolate red; outer side of limbs chestnut; under parts of body and 
inner side of limbs, paler, yellowish red; hands and feet black; tail 
chestnut. 
Measurements. Total length, 1,260; tail, 730; foot, 175. Skull: 
total length, 96; occipito-nasal length, 85.7; intertemporal width, 41.7; 
Hensel, 56.6; zygomatic width, 68.8; breadth of braincase, 59.1; 
median length of nasals, 95; palatal length, 25.1; length of upper molar 
series, 23.9. 
The presumed type of (S.) RUBICUNDA, and one from which the 
figure in Miller and Schlegel’s work was taken, is in the Leyden Mu- 
seum. It is uniformly red, except on the inner side of limbs which is 
paler, with a yellowish tinge. The hands and feet are like body but 
darker, caused by the presence of black hairs, as if these members 
were turning to that color. 
P. ignitus Dollman came from Mt. Mulu, north Borneo and the 
