aia iy 4 is 
60 PY GATHETX 
A specimen in the Calcutta Museum may be described as follows: 
Top of head blackish brown, hairs radiating from a central point; 
back of head and neck, and entire upper part of body and arms broc- 
coli brown, lightest on occiput; legs from knees to ankles broccoli 
brown; hands and feet blackish brown; under parts, anal region and 
thighs yellowish white; tail very long, bistre, being darker than back. 
Hair on occiput forming a short pointed crest. 
Measurements. Total length, 1,420; tail, 910; foot, 155, (skin). 
Skull: total length, 106.2; occipito-nasal length, 86.4; intertemporal 
width, 39.2; breadth of braincase, 56.6; Hensel, 38; zygomatic width, 
74.6; median length of nasals, 10.7; palatal length, 38.7; length of 
upper canines, 18.7; length of upper molar series, 26.7; length of 
mandible, 75.2; length of lower molar series, 35. Ex specimen from 
Takamen, Siam, in British Museum. 
PYGATHRIX CATEMANA (Lyon). 
Presbytis catemana Lyon, Proc. U. S. Nat. Mus., XXXIV, 1908, 
p. 672. 
Type locality. Kateman River, Eastern Sumatra. Type in United 
States National Museum. 
Color. Exactly like P. cana, but patch on thigh is grayish and 
does not go to side of rump. Ex type United States National Museum. 
Measurements. Total length, 1,200; tail, 740; foot, 175. Skull: 
total length, 89.1; occipito-nasal length, 77.7; zygomatic width, 68.3; 
Hensel, 60.4; intertemporal width, 46.8; palatal length, 27; median 
length of nasals, .64; length of upper molar series, 23. Ex type United 
States National Museum. 
PYGATHRIX AYGULA (Linnzus). 
Simia aygula Linn., Syst. Nat., I, 1758, p. 27; I, 1766, p. 39. 
Presbytis mitrata Esch., Kotzeb., Reise, 1821, p. 196, pl., figs. 1, 2, 
3; Less., Man. Mamm., 1827, p. 44. 
Semnopithecus comatus Desm., Mamm., Suppl., 1822, p. 533; F. 
Cuv., Hist. Nat. Mamm., 1825, pl. XIII; Desmoul., Dict. 
Class. Hist. Nat., VII, 1825, p. 569; Less., Man. Mamm., 
1827, p. 41; Temm., Mon. Mamm., I, 1827, p. 14; Desm., 
Dict. Scien. Nat., XLVIII, 1827, p. 438; Griff., Anim. Kingd., 
V,.4827,. p10? Cavs Régn: Animist, 1829; po O4ta( Ramee 
Fisch., Syn. Mamm., 1829, p. 16; I. Geoff., Bélang., Voy., 
Zool., 1834, p. 40; Wagn., Schreb., Saugth. Suppl., I, 1840, 
p. 87, pl. XXIV; V, 1855, p. 24; Less., Spec. Mamm., 1840, 
